JP5921176B2 - Installation foundation construction method - Google Patents

Description

  The present invention relates to an installation foundation construction method, and more specifically, to a steel structure having a steel frame formed from a steel column and a steel beam and a concrete floor provided in the steel frame, a solar panel, an antenna, a water tank, The present invention relates to a method for constructing a foundation for use in installing machinery such as septic tanks and air conditioners, and buildings such as steel towers and steel structures.

  In new or existing concrete structures such as reinforced concrete structures and reinforced steel concrete structures, roofs and underground slabs, solar panels, antennas, water storage tanks, septic tanks, air conditioners, and other various machinery and equipment, steel towers and steel structures, etc. Various buildings are installed. Typically, such machinery and buildings are installed directly on the surface of the slab for the purpose of preventing water from entering the interior and enabling maintenance on the back side of the machinery and buildings. There is nothing, they are mounted on a mounting foundation installed in the slab.

  As an example of such an installation foundation, Patent Document 1 discloses a solar cell panel installation structure. In the prior art described in Patent Document 1, a formwork is produced at a place where a solar cell panel is installed, and a foundation is formed and transported by placing and curing concrete in the formwork. This is a structure in which the solar cell panel and its mount are assembled on the foundation. In such a conventional installation foundation, since the formwork must be manufactured at the construction site, it takes time and effort to cure the concrete poured into the formwork, and in a short construction period. Cannot make a stationary structure.

  In order to solve such problems of the prior art, in the solar cell panel mounting structure disclosed in Patent Document 1, a concrete or reinforced concrete foundation is manufactured in advance at a foundation parts manufacturing factory, and the foundation is used as a roof of a concrete structure. And transported to underground construction sites. After that, a thin cement layer is formed on the roof or underground slab installation site, the cement layer is used as an adhesive layer, the foundation is placed on top of it, and it is integrated with the slab. Prepare for. Since the solar cell panel mounting structure disclosed in Patent Document 1 does not need to produce a formwork at the construction site when forming the foundation for installing the solar cell panel, it saves that much labor, and at the construction site The construction work can be simplified, the time for curing the concrete can be omitted, and the construction period can be shortened accordingly.

JP-A-9-070188

  In the solar cell panel installation structure disclosed in Patent Document 1, it is not necessary to cure the concrete at the construction site, but the foundation must be cured by curing the concrete at the foundation manufacturing plant. Is still necessary, and it takes time to manufacture the foundation. Furthermore, it is necessary to transport manufactured concrete foundations and reinforced concrete foundations from the factory to the construction site, and it takes time and labor to transport foundations with considerable weight, so it is not possible to reduce the labor and cost of constructing foundations. . Moreover, when fixing a foundation manufactured at a factory to a slab, only a method of fixing a concrete layer to the slab as an adhesive layer or a method of forming a recess in the slab and fitting the lower end of the foundation into the recess can be adopted. Cannot be firmly installed on the slab.

  An object of the present invention is to make a strong foundation for attaching a mechanical device or a building to a steel structure having a steel frame formed from a steel column and a steel beam and a concrete floor provided in the steel frame. An object of the present invention is to provide an installation foundation construction method capable of reducing labor and cost required for foundation installation and shortening the construction period of the foundation.

  The premise of the first and second inventions for solving the above-described problems is that the steel frame is formed at a predetermined location of a steel structure having a steel frame formed from a steel column and a steel beam and a concrete floor provided in the steel frame. This is the installation method of the installation foundation.

The feature of the first invention in the above premise is that the installation foundation construction method includes a temporary mounting step of temporarily mounting a metal base having a metal pipe and a metal plate connected to the lower end of the metal pipe at a predetermined location on the concrete floor; An installation height adjustment process for adjusting the installation height of the temporarily installed metal base from the top surface of the concrete floor by adjusting the screwing position of the height adjustment bolt screwed to the board to the metal plate; A bolt hole first drilling step for drilling a first support bolt insertion hole in the plate, and a second support bolt insertion hole in the concrete floor in accordance with the position of the first support bolt insertion hole formed in the metal plate and a steel frame A bolt hole second drilling step of drilling a support bolt third insertion hole in the beam, a support bolt inserted into the support bolt first to third insertion holes, and the support bolt is inserted into the metal plate and the steel beam via a predetermined fixing means. Hard A support bolt fixing step of the frame member installation step of installing a molding material comprising a busy Ide embankment the gap between the outer circumferential edge of the concrete floor and foundation between the outer edge and the concrete floor of the metal foundation, metal foundation A waterproof layer installation process that installs a waterproof layer that covers the metal base and the molding material and is located outside the molding material and the molding material, and a cement hardened material in the space between the upper surface of the concrete floor and the lower surface of the metal plate It has a cement hardened material filling step for filling, and a metal tube closing step for closing the top opening of the metal tube by fixing a metal lid to the top of the metal tube . leakage from the gap of the hardened cement product is prevented, prior to the expiration of the curing period of a just filled with cement cured cement cured product space, Rukoto closed the top opening of the metal tube by a metal cover The installation foundation is complete And, curing period begins cement cured from after the top opening of the metal tube is blocked by the metal lid, after a curing period, the portion extending between the concrete floor and the metal plate of the support bolt It is to be integrated with the cement hardened material filled in the space .

As an example of the first invention, the metal plate includes a first portion that extends radially inward of the metal tube and a second portion that extends radially outward of the metal tube. The support bolt first insertion hole is drilled in the second portion of the plate, and in the bolt hole second drilling step, the support bolt is provided on the concrete floor according to the position of the support bolt first insertion hole formed in the second portion of the metal plate. The second insertion hole is drilled and the support bolt third insertion hole is drilled in the steel beam. In the support bolt fixing step, the support bolt is inserted into the support bolt first to third insertion holes, and through a predetermined fixing means. The support bolt is fixed to the second part of the metal plate and the steel beam, and in the frame material installation process, a molding material is installed in the gap between the outer periphery of the second part of the metal plate and the concrete floor, and the waterproof layer installation process Then, the metal base including the second part of the metal plate is covered. Installing a waterproof layer covering the molding material.

  As another example of the first invention, the concrete floor has a concrete slab provided on the steel column and the steel beam, a waterproof layer provided on the slab, and a press provided on the waterproof layer. In the foundation temporary installation process, the holding concrete and the waterproof layer are removed from the concrete floor to expose the slab, and the second part of the metal plate is located on the slab installed in the steel beam, In the second drilling step of the bolt hole, the metal base is temporarily installed so that the metal tube and the first part of the metal plate are positioned on the slab provided at the intersection of the steel column and the steel beam. The support bolt second insertion hole is drilled in the slab and the support bolt third insertion hole is drilled in the steel beam in accordance with the position of the support bolt first insertion hole formed in the second portion.

The feature of the second invention in the premise is that the installation foundation construction method includes a temporary mounting step of temporarily mounting a metal base having a metal pipe and a metal plate connected to the lower end of the metal pipe at a predetermined location on the concrete floor; An installation height adjustment process for adjusting the installation height of the temporarily installed metal base from the top surface of the concrete floor by adjusting the screwing position of the height adjustment bolt screwed to the board to the metal plate; Bolt hole drilling process for drilling bolt holes in the plate, anchor hole drilling process for drilling anchor holes in the concrete floor according to the position of the bolt holes formed in the metal plate, and anchor bolts being inserted into the bolt holes and anchor holes An anchor bolt fixing step of fixing the anchor bolt to the anchor hole and fixing the anchor bolt to the metal plate through a predetermined fixing means; Outer and the frame member installation step of installing a molding material comprising a busy Ide embankment the gap between the outer circumferential edge of the concrete floor and foundation, the outer metal foundation molding material between the outer edge and the concrete floor of the genus foundation A waterproof layer installation process that installs a waterproof layer that covers the metal base and the molding material, and a cement hardened material filling process that fills a space between the upper surface of the concrete floor and the lower surface of the metal plate And a metal tube closing step for fixing the metal lid to the top of the metal tube and closing the top opening of the metal tube. In the installation foundation construction method, the space from the cement hardened material filled in the space by the molding material leakage is prevented, a just filled with cured cement product prior to the expiration of the curing period of the cement cured, the mounting base in Rukoto the top opening is closed in the metal tube is completed by a metal lid to the space, Metal tube by metal lid Part openings curing period of the cement cured product started after closed, after a curing period, a cement cured product part is filled in a space extending between the concrete floor and the metal plate of the anchor bolt To be united with.

As an example of the second invention, the metal plate includes a first portion extending inward in the radial direction of the metal tube and a second portion extending outward in the radial direction of the metal tube. Bolt holes are drilled in the second part. In the anchor hole drilling process, anchor holes are drilled in the concrete floor in accordance with the positions of the bolt holes formed in the second part of the metal plate. In the anchor bolt fixing process, the bolt holes are drilled. In addition, the anchor bolt is inserted into the anchor hole, the anchor bolt is fixed to the anchor hole, and the anchor bolt is fixed to the second portion of the metal plate through a predetermined fixing means . established the molded material in the gap between the outer edge and the concrete floor part, the waterproof layer installing step, to install a waterproof layer covering the molding material covers the metal foundation comprising a second portion of the metal plate .

  As another example of the second invention, the concrete floor has a concrete slab provided on the steel column and the steel beam, a waterproof layer provided on the slab, and a press provided on the waterproof layer. In the foundation temporary installation process, the holding concrete and the waterproof layer are removed from the concrete floor to expose the slab, and the second part of the metal plate is located on the slab installed in the steel beam, In the anchor hole drilling process, the metal plate is temporarily installed so that the metal pipe and the first part of the metal plate are located on the slab provided at the intersection of the steel column and the steel beam. An anchor hole is drilled in the slab in accordance with the position of the bolt hole formed in the two portions.

  As another example of the first and second inventions, in the waterproof layer installation step, the waterproof layer extending outside the metal base is connected to the waterproof layer of the concrete floor.

  As another example of the first and second inventions, the second portion of the metal plate is located between the first side plate and the first side plate that rises upward from the periphery thereof, and rises upward from the second portion. The second side plate is connected, and in the installation foundation construction method, the cemented product is filled in a space surrounded by the second portion of the metal plate and the first side plate.

  As another example of the first and second inventions, the second portion of the metal plate is located between the first side plate and the first side plate that rises upward from the periphery thereof, and rises upward from the second portion. The second side plate is connected, and the installation foundation construction method includes a space closing step of closing the space by fixing the top plate to the top of the space surrounded by the second portion of the metal plate and the first side plate.

  As another example of the first and second inventions, a filling hole for filling a cement hardened material into a space is formed at a predetermined portion of the metal plate. In the cement hardened material filling step, the filling hole is formed into a space. Fill with hardened cement.

  As another example of the first and second inventions, a confirmation hole for confirming the cement hardened material filled in the space is formed in a predetermined portion of the metal plate. In the cement hardened material filling step, a confirmation hole is formed. The space is filled with the cement hardened material while confirming the filling state of the cement hardened material in the space.

According to the installation foundation construction method according to the first aspect of the present invention, the temporary installation step of temporarily installing the metal base at a predetermined location of the concrete floor, and the installation height from the upper surface of the concrete floor of the temporarily installed metal base Adjusting the installation height adjusting process, bolt hole first drilling process for drilling the first support bolt insertion hole in the metal plate, and supporting the concrete floor according to the position of the first support bolt insertion hole formed in the metal plate Bolt hole second drilling step of drilling the bolt second insertion hole and drilling the support bolt third insertion hole in the steel beam, and inserting the support bolt into the support bolt first to third insertion holes, through the fixing means Support bolt fixing process for fixing the support bolt to the metal plate and the steel beam, a frame material installation process for installing a molding material between the outer periphery of the metal base and the concrete floor, and a waterproof layer covering the metal base and the molding material Set up A waterproof layer setting step of the hardened cement product filling step of filling the cement cured in the space between the lower surface of the upper surface and the metal plate concrete floor, and the metal tube closure process of fixing the metal lid on top of the metal tube Since the installation foundation is made from and each basic part made into a general-purpose part is assembled as a unit system by each process, the construction work can be made manual and the construction work can be simplified. The installation foundation construction method is not necessary to produce the formwork at the construction site ( formation of the formwork or removal of the formwork) at the time of forming the foundation, but to create the foundation at the foundation manufacturing factory or construction site. There is no need to cure the hardened cement, and the support bolts are fixed to the metal plate and steel beam of a lightweight metal base, and the space is filled with the hardened cement and the base is simply fixed to the metal base. It can be constructed, and the labor, cost, and time required for the production of the formwork and curing of the hardened cement can be saved, and the construction work can be simplified and the construction period can be greatly shortened. be able to. In the installation foundation construction method, the support bolt is fixed to the metal plate and the steel beam, the space is filled with the hardened concrete, and the support bolt is integrated with the hardened cement after the curing period of the hardened cement has passed. Since this load is shared between the support bolt and the hardened cement material, not only can the installation foundation be firmly installed on the steel structure, but also solar panels, antennas, water storage tanks, septic tanks, mechanical equipment such as air conditioning equipment, It is possible to create a foundation that can be firmly equipped with buildings such as steel towers and steel structures. In the installation foundation construction method, the space between the upper surface of the concrete floor and the lower surface of the metal plate is filled with cement hardened material, and the load applied to the foundation when a mechanical device or building is installed on the foundation, Since it is shared with the hardened cement hardened material, it will not inadvertently incline due to the load applied to the foundation, or the foundation will not collapse, making a foundation that can reliably support machinery and buildings be able to. In the installation foundation construction method, even if the gap between the concrete floor and the outer periphery of the metal base is blocked by the frame material and the hardened cement is filled in the space, the hardened cement leaks from the gap (space). The top of the metal tube can be closed with a metal lid immediately after filling the space with cement hardened material and without waiting for the cement hardened material curing period, and wait for the cement hardened material curing time Since the installation work of the next foundation can be performed without it, the construction period for the curing period of the hardened cement can be shortened, and the construction period of the foundation can be greatly shortened. The installation foundation construction method can freely adjust the installation height of the metal foundation from the upper surface of the concrete floor during construction of the foundation, and can immediately respond to the request for changing the height dimension of the foundation. In the installation foundation construction method, when installing a plurality of them, the height dimensions of the foundations can be easily adjusted, and the height dimensions of the foundations can be made uniform. The foundation construction method can prevent water from entering the metal base even when the foundation is installed outdoors on the concrete floor by providing a waterproof layer, and corrosion and strength of the base due to water entering the metal base. Decline can be prevented.

The metal plate includes a first portion and a second portion, and in the bolt hole first drilling step, the support bolt first insertion hole is drilled in the second portion of the metal plate, and in the bolt hole second drilling step, the metal plate According to the position of the support bolt first insertion hole formed in the second portion, the support bolt second insertion hole is drilled in the concrete floor and the support bolt third insertion hole is drilled in the steel beam. The support bolt is inserted into the first through third insertion holes of the support bolt, and the support bolt is fixed to the second portion of the metal plate and the steel beam via the fixing means . In the frame material installation step, the second portion of the metal plate Installation foundation construction method in which a molding material is installed in the gap between the outer peripheral edge of the metal and the concrete floor, and in the waterproof layer installation process, a waterproof layer that covers the metal base including the second portion of the metal plate and covers the molding material is installed Applied foundation Of course, there is no need to make a formwork at the construction site, and it is not necessary to cure the hardened cement material to make the foundation at the foundation parts manufacturing factory or construction site, and the support bolt is a lightweight metal base metal The foundation can be constructed simply by fixing the second part of the plate and the steel beam, filling the space with cement hardened material, and fixing the metal lid to the metal base. The labor, cost, and time required for curing can be saved, the construction work can be simplified, and the construction period can be greatly shortened. In the foundation construction method, the support bolt is fixed to the second part of the metal plate and the steel beam, the space is filled with the hardened concrete, and after the curing period of the hardened cement has passed, the support bolt becomes integrated with the hardened cement. Since the load applied to the foundation is shared by the support bolt and the hardened cement material, not only can the foundation be firmly installed on the steel structure, but also machines such as solar panels, antennas, water storage tanks, septic tanks, air conditioning equipment, etc. It is possible to create a foundation that can be firmly equipped with equipment, buildings such as steel towers and steel structures. In the foundation construction method, the space between the upper surface of the concrete floor and the lower surface of the metal plate is filled with hardened cement, and the load applied to the foundation when a machine or building is installed on the foundation is hardened with the support bolt. Since the load is applied to the hardened cement material, it will not be inadvertently tilted by the load applied to the foundation, or the foundation will not collapse, and a foundation that can reliably support machinery and buildings will be created. Can do. The installation foundation construction method secures the area of the metal plate by extending the metal plate radially outward of the metal tube to form the second part, and supports the load applied to the foundation by the metal plate, instead of the metal tube Therefore, the weight of the metal tube can be reduced, and as a result, the weight of the foundation can be reduced.

  In the foundation temporary installation process, the concrete and waterproof layer are removed from the concrete floor to expose the slab, and the second part of the metal plate is located on the slab provided on the steel beam, and the metal tube and metal plate A metal base is temporarily installed so that the first part is located on the slab provided at the intersection of the steel column and the steel beam, and is formed in the second part of the metal plate in the bolt hole second drilling step. The mounting foundation construction method of drilling the support bolt second insertion hole in the slab in accordance with the position of the first support bolt insertion hole and drilling the support bolt third insertion hole in the steel beam is a lightweight metal base. Can be fixed to the second part of the metal plate and the steel beam, filled with cement hardened material in the space, and the foundation can be constructed simply by fixing the metal lid to the metal base, making the formwork and cement hard Time and cost according to the curing of the object, it is possible to save time, it is possible to simplify the construction work, the construction time of that amount can be greatly shortened. Even if the foundation installation site is a slab with a waterproof layer with waterproof function on the roof or basement of an existing steel structure, the exposed slab after removing the waterproof layer at the installation site The foundation can be installed immediately, and immediately after the foundation is installed, the waterproof layer near the installation location can be repaired (a new waterproof layer is applied), so the foundation can be installed quickly and the time required to install the foundation Can be greatly shortened.

According to the installation foundation construction method according to the second aspect of the present invention, the temporary installation step of temporarily installing the metal base at a predetermined location of the concrete floor, and the installation height from the upper surface of the concrete floor of the temporarily installed metal base An installation height adjusting step for adjusting, a bolt hole drilling step for drilling a bolt hole in a metal plate, an anchor hole drilling step for drilling an anchor hole in a concrete floor according to the position of the bolt hole formed in the metal plate, An anchor bolt is inserted into the bolt hole and the anchor hole, the anchor bolt is fixed to the anchor hole, and the anchor bolt is fixed to the metal plate through the fixing means, and the outer periphery of the metal base and the concrete floor a frame member installation step of installing a molding material between a waterproof layer installing step of installing a waterproof layer covering the metal foundation and molding material, con Cement cured filling process of filling the cement cured, the mounting base and a metal tube closure process of fixing the metal lid on top of the metal tube is made in the space between the upper and lower surfaces of the metal plate lied bed, Since each basic part made into a general-purpose part is assembled as a unit system by each process, the construction work can be manualized and the construction work can be simplified. The installation foundation construction method is not necessary to produce the formwork (assembling of the formwork or removing the formwork) at the construction site when forming the foundation, but of course to make the foundation at the foundation manufacturing factory or construction site. There is no need to cure the hardened cement, and the anchor bolt is fixed to the metal plate and anchor hole of a lightweight metal base, and the space is filled with the hardened cement and the base is simply fixed to the metal base. It can be constructed, and the labor, cost, and time required for the production of the formwork and curing of the hardened cement can be saved, and the construction work can be simplified and the construction period can be greatly shortened. be able to. In the installation foundation construction method, anchor bolts are fixed to metal plates and anchor holes, the space is filled with hardened concrete, and after the curing period of hardened cement has passed, the anchor bolt is integrated with the hardened cement to the foundation. Since this load is shared by bolts and hardened cement, not only can the installation foundation be firmly installed on the steel structure, but also solar panels, antennas, water storage tanks, septic tanks, air conditioners and other machinery and equipment, steel towers It is possible to make a foundation that can be firmly equipped with buildings such as steel structures. In the installation foundation construction method, the space between the upper surface of the concrete floor and the lower surface of the metal plate is filled with cement hardened material, and the load applied to the foundation when mechanical equipment or building is installed on the foundation is fixed to the anchor bolt. Since it is shared with the hardened cement hardened material, it will not inadvertently incline due to the load applied to the foundation, or the foundation will not collapse, making a foundation that can reliably support machinery and buildings be able to. In the installation foundation construction method, even if the gap between the concrete floor and the outer periphery of the metal base is blocked by the frame material and the hardened cement is filled in the space, the hardened cement leaks from the gap (space). The top of the metal tube can be closed with a metal lid immediately after filling the space with cement hardened material and without waiting for the cement hardened material curing period, and wait for the cement hardened material curing time Since the installation work of the next foundation can be performed without it, the construction period for the curing period of the hardened cement can be shortened, and the construction period of the foundation can be greatly shortened. The installation foundation construction method can freely adjust the installation height of the metal foundation from the upper surface of the concrete floor during construction of the foundation, and can immediately respond to the request for changing the height dimension of the foundation. In the installation foundation construction method, when installing a plurality of them, the height dimensions of the foundations can be easily adjusted, and the height dimensions of the foundations can be made uniform. The foundation construction method can prevent water from entering the metal base even when the foundation is installed outdoors on the concrete floor by providing a waterproof layer, and corrosion and strength of the base due to water entering the metal base. Decline can be prevented.

The metal plate includes a first portion and a second portion, and the bolt hole is drilled in the second portion of the metal plate in the bolt hole drilling step, and the bolt formed in the second portion of the metal plate in the anchor hole drilling step. An anchor hole is drilled in the concrete floor according to the position of the hole, and in the anchor bolt fixing process, the anchor bolt is inserted into the bolt hole and the anchor hole, and the anchor bolt is fixed to the anchor hole and the anchor bolt is fixed via the fixing means. Fixed to the second part of the metal plate, in the frame material installation step, a molding material is installed in the gap between the outer periphery of the second part of the metal plate and the concrete floor; basic construction method of installing a waterproof layer covering the molding material covers the metal foundation comprising 2 parts, to fabricate the formwork at the construction site when applying a basic Needless to say, it is not necessary to cure the hardened cement to create the foundation at the foundation parts manufacturing factory or construction site, and the anchor bolt is fixed to the second part of the lightweight metal base metal plate and the anchor hole. In addition, it is possible to build a foundation simply by filling the space with hardened cement and fixing the metal lid to the metal base, saving labor, cost, and time for mold production and curing of hardened cement. The construction work can be simplified and the construction period can be greatly shortened. In the installation foundation construction method, anchor bolts are fixed to the second part of the metal plate and the anchor hole, the space is filled with hardened concrete, and the anchor bolt is integrated with the hardened cement after the curing period of the hardened cement has passed. Since the load on the foundation is shared between the bolt and the hardened cement, not only can the foundation be firmly installed on the steel structure, but also machines such as solar panels, antennas, water storage tanks, septic tanks, air conditioning equipment, etc. It is possible to create a foundation that can be firmly equipped with equipment, buildings such as steel towers and steel structures. In the foundation construction method, cement hardened material is filled in the space between the upper surface of the concrete floor and the lower surface of the metal plate, and the load applied to the foundation when a machine or building is installed on the foundation is hardened with the anchor bolt. Since the load is applied to the hardened cement material, it will not be inadvertently tilted by the load applied to the foundation, or the foundation will not collapse, and a foundation that can reliably support machinery and buildings will be created. Can do. The installation foundation construction method secures the area of the metal plate by extending the metal plate radially outward of the metal tube to form the second part, and supports the load applied to the foundation by the metal plate, instead of the metal tube Therefore, the weight of the metal tube can be reduced, and as a result, the weight of the foundation can be reduced.

  In the foundation temporary installation process, the concrete and waterproof layer are removed from the concrete floor to expose the slab, and the second part of the metal plate is located on the slab provided on the steel beam, and the metal tube and metal plate In the anchor hole drilling process, the metal base was temporarily installed so that the first part was located on the slab provided at the intersection of the steel column and the steel beam. The installation foundation construction method of drilling an anchor hole in the slab according to the bolt hole position is to fix the anchor bolt to the second part of the metal plate of the lightweight metal base and the anchor hole, and fill the space with cement hardened material At the same time, the foundation can be constructed simply by fixing the metal lid to the metal base, saving labor, cost and time for the production of the formwork and curing of the hardened cement. Rutotomoni, it is possible to simplify the construction work, the construction time of that amount can be greatly shortened. Even if the foundation installation site is a slab with a waterproof layer with waterproof function on the roof or basement of an existing steel structure, the exposed slab after removing the waterproof layer at the installation site The foundation can be installed immediately, and immediately after the foundation is installed, the waterproof layer near the installation location can be repaired (a new waterproof layer is applied), so the foundation can be installed quickly and the time required to install the foundation Can be greatly shortened.

  In the waterproof layer installation process, the foundation construction method that connects the waterproof layer that extends outside the metal base to the waterproof layer of the concrete floor can prevent water from entering the concrete floor, and deterioration of the concrete floor and steel frame due to water ingress Can be prevented.

  The mounting foundation construction method in which the first side plate and the second side plate are connected to the second portion of the metal plate, and the space surrounded by the second portion of the metal plate and the first side plate is filled with the cement hardened material is the first method. Since the second side plate functions as a reinforcing plate that increases the strength of the metal plate, deformation and breakage of the metal plate are prevented by the side plates, and an installation base having excellent strength can be made. The installation foundation construction method fills the space with cement hardened material, so the support bolts or anchor bolts are not exposed in the space, and the bolt can be prevented from corroding or loosening. And the metal plate can be prevented from being released, and the loss of the function as the foundation due to the loosening of the bolt can be prevented.

  A space closing step in which the first side plate and the second side plate are connected to the second portion of the metal plate, and the top plate is fixed to the top of the space surrounded by the second portion of the metal plate and the first side plate to close the space. Including the foundation construction method, the first and second side plates function as reinforcing plates that increase the strength of the metal plate, so that deformation and breakage of the metal plate are prevented by the side plates, and an installation foundation having excellent strength is made. Can do. In the installation foundation construction method, the support bolts or anchor bolts are not exposed to the outside and water can be prevented from entering the space. Therefore, corrosion of the bolts can be prevented. Release of the fixation with the metal plate can be prevented. Since the installation foundation construction method only blocks the top opening of the space with the top plate, the period of curing the hardened cement can be shortened compared to the case where the hardened cement is filled in the space. Can be shortened.

  In the cement hardened material filling process, the installation foundation construction method for filling the cement hardened material into the space from the filling hole formed in the predetermined place of the metal tube is possible to fill the space with the cement hardened material using the filling hole. Therefore, the hardened cement can be reliably filled in the space. In the installation foundation construction method, the load applied to the foundation when a mechanical device or building is installed on the foundation can be shared between the support bolt or anchor bolt and the hardened cement hardened material. It is not inadvertently inclined or the foundation collapses, and it is possible to create a foundation that can reliably support machinery and buildings.

  In the cement hardened material filling process, confirm the basic construction method to fill the space with cement hardened material while confirming the filling state of the cement hardened material in the space from the confirmation hole formed in the predetermined place of the bottom wall of the metal pipe It is possible to check the filling state of the cement hardened material filled in the space using holes, the cement hardened material is not filled in the space, and the cement hardened material can be filled evenly throughout the space. it can. In the foundation construction method, the load applied to the foundation when a mechanical device or building is installed on the foundation can be shared between the support bolt or anchor bolt and the hardened cement hardened material. It is possible to create a foundation that can reliably support machinery and buildings without inadvertent inclination or collapse of the foundation.

The perspective view of the installation foundation shown as an example. The top view of an installation foundation. AA sectional view taken on the line AA of FIG. The figure which shows an example of the construction procedure of an installation foundation. The figure which shows the construction procedure of the installation foundation which continues from FIG. The top view of a metal foundation. The side view of a metal foundation. The figure which shows the construction procedure of the installation foundation which continues from FIG. The figure which shows the construction procedure of the installation foundation which continues from FIG. The perspective view of the installation foundation shown as another example. The top view of an installation foundation. BB sectional drawing of FIG. The figure which shows an example of the construction procedure of an installation foundation. The figure which shows the construction procedure of the installation foundation which continues from FIG. The top view of a metal foundation. The side view of a metal foundation. The figure which shows the construction procedure of the installation foundation which continues from FIG. The perspective view of the installation foundation shown as another example. AA sectional view taken on the line AA of FIG. The top view of a metal foundation. The side view of a metal foundation. The figure which shows an example of the construction procedure of the installation foundation of FIG. The figure which shows the construction procedure of the installation foundation which continues from FIG. The figure which shows the construction procedure of the installation foundation which continues from FIG. The figure which shows the construction procedure of the installation foundation which continues from FIG.

  The details of the installation foundation construction method according to the present invention will be described with reference to the attached drawings such as FIG. 1 which is a perspective view of the installation foundation 10A shown as an example. In FIG. 1, one installation base 10A installed on the steel structure 11 is illustrated, but the number of the foundations 10A is not limited to that shown in the drawing, and generally two or more foundations 10A are provided. It is installed in the steel structure 11.

  2 is a top view of the mounting base 10A, and FIG. 3 is a cross-sectional view taken along the line AA in FIG. FIG. 4 is a diagram showing an example of a construction procedure for the installation foundation 10A, and FIG. 5 is a diagram showing a construction procedure for the installation foundation 10A continued from FIG. FIG. 6 is a top view of the metal base 16, and FIG. 7 is a side view of the metal base 16. In FIG. 1, the vertical direction is indicated by an arrow X1, the horizontal direction is indicated by an arrow X2, and the front-back direction is indicated by an arrow X3. In FIGS. 3-5, the steel structure 11 is shown as a cross section, and each component of the foundation 10A except a part is shown as a cross section.

  The installation foundation 10A is installed on a predetermined installation location on the rooftop or underground of a new or existing steel structure 11 (any steel structure including a steel building). The installation place is a slab installed at the intersection of a steel column and a steel beam on the roof or underground. Here, strictly speaking, “slab” means “floor slab”, but in this embodiment, it is used to include not only the underground floor of the steel structure 11 but also the roof of the roof.

  As shown in FIG. 4, the steel structure 11 for mounting the foundation 10 </ b> A is formed of a steel frame 54 and a concrete floor 12 provided on the frame 54. The steel frame 54 is formed of a steel column 55 and a steel beam 56. An H-section steel having a web 57 and a flange 58 is used for the steel column 55 and the steel beam 56. Concrete 59 is cast on the H-shaped steel of the steel column 55. The H-shaped steels are connected via a connecting plate 60 fixed to the flanges 58. In addition to the H-shaped steel, the steel column 55 and the steel beam 56 may be any one of a square steel pipe, a circular steel pipe, an angle steel, a grooved steel, and a C-shaped steel.

  The concrete floor 12 is formed of a concrete slab 13, a waterproof layer 14 provided on the slab 13, and a pressing concrete 15 (mortar layer) provided on the waterproof layer 14. When the steel structure 11 is constructed underground, the waterproof layer 14 and the pressing concrete 15 are not present, and the concrete floor 12 may be formed only from the slab 13. Further, although not shown, a plurality of reinforcing bars are embedded in the slab 13.

  In the installation foundation construction method, the installation foundation 10 </ b> A is installed on a concrete slab 13 obtained by removing the pressing concrete 15 and the waterproof layer 14 from the concrete floor 12. In the basic construction method, the metal base 16 and the metal lid 17, the plurality of height adjusting bolts 18, the plurality of supporting bolts 19, the mortar 20 (cured cement), the waterproof layer 21, and the molding material 22 (frame material) Using each standardized (standardized) basic component, the basic component is assembled by a predetermined manual procedure to make an installation base 10A.

  These basic components (metal base 16, metal lid 17, adjustment bolt 18, support bolt 19, mortar 20, waterproof layer 21, molding material 22) are manufactured at the basic component manufacturing factory and transported from the factory to the installation site. At the time of shipment from the base part manufacturing factory, the support bolt insertion hole 39 (bolt hole) is not made in the second portion 31 of the metal plate 24 described later, and the support bolt insertion is made in the second portion 31 at the construction site. Hole 39 is drilled. Further, a plurality of adjustment bolt screw holes 32 are formed in the first part 30 of the metal plate 24 in advance in a basic part manufacturing factory, and the height adjustment bolt 18 is screwed into the bolt screw holes 32. Yes.

  An example of the installation foundation construction method will be described as follows, taking the case where the installation foundation 10A is installed on the roof of the steel structure 11 as an example. First, the installation location of the foundation 10A on the roof of the steel structure 11 is positioned, and the installation location of the concrete floor 12 is marked. At the installation location, as shown in FIG. And the waterproof layer 14 are removed, and the concrete slab 13 is exposed.

  The illustrated concrete floor 12 is formed of a concrete slab 13, a waterproof layer 14, and pressing concrete 15, but the concrete floor 12 is not limited to that illustrated, and other configurations currently in use are used. This installation foundation 10A can be constructed on all concrete floors. For example, in the case of a concrete floor in which a synthetic resin is further applied on a concrete slab to form a resin film, the resin film, the pressing concrete, and the waterproof layer are removed from the concrete floor at the foundation installation location to expose the concrete slab.

  After the concrete slab 13 is exposed from the concrete floor 12, the position of the reinforcing bar installed in the slab 13 is measured using a sensor. Next, in order to install the support bolt 19 at a position where the reinforcing bars are avoided, a drilled portion at a position where the reinforcing bolt insertion hole 39 (bolt hole) avoids the reinforcing bars is marked on the second portion 31 of the metal plate 24. In accordance with the marking, a support bolt insertion hole 39 is drilled at the drilled portion of the second portion 31 of the metal plate 24 using a drill (bolt hole first drilling step). After drilling the bolt insertion hole 39, as shown in FIG. 5, the metal base 16 is temporarily installed at the installation location in accordance with the marking of the foundation installation location on the slab 13 (base temporary installation step).

  The metal base 16 is a standardized general-purpose product having the same shape and dimensions, and a plurality of them are manufactured at a basic part manufacturing factory other than the construction site and then transported to the construction site. The metal base 16 is disposed on the slab 13 obtained by removing the pressing concrete 15 and the waterproof layer 14 from the concrete floor 12. As shown in FIGS. 6 and 7, the metal base 16 is formed of a hollow cylindrical metal tube 23 and a metal plate 24 having a substantially rectangular planar shape. The metal base 16 is manufactured by welding a metal tube 23 to the upper surface of the metal plate 24. The metal tube 23 and the metal plate 24 are made of metal such as iron, aluminum, and alloy.

  In the metal base 16, the metal tube 23 (including the first portion 30 described later) of the metal plate 24 is disposed immediately above the concrete slab 13 provided at the intersection of the steel column 55 and the steel beam 56. A second portion 31 described later of the metal plate 24 is disposed immediately above the concrete slab 13 provided in the steel beam 56. The metal base 16 is lighter than the reinforced concrete foundation because the concrete is omitted. Therefore, by using the metal base 16, the weight of the foundation 10A can be significantly reduced.

  The metal tube 23 has each side plate 25 having a substantially rectangular shape, and its cross section is formed into a substantially rectangular shape. The metal tube 23 is disposed on the upper surface of the central portion of the metal plate 24, and the lower end edge thereof is joined (fused) to the upper surface of the metal plate 24 by welding. A hollow space 26 is defined by the side walls 25 in the metal tube 23, and a top opening 27 surrounded by the upper edge of the side plates 25 is formed at the top of the metal tube 23. A plurality of fixing bolt screw holes 29 for screwing the lid fixing bolts 28 are formed on the top of the metal tube 23. A female screw (not shown) into which the lid fixing bolt 28 is screwed is formed in the fixing bolt screw hole 29.

  The metal plate 24 includes a first portion 30 extending radially inward (laterally inside the metal tube 23) from the lower end edge of the metal tube 23, and radially outward (laterally of the metal tube 23) from the lower end edge of the metal tube 23. And a second portion 31 extending outward in the direction). A plurality of adjustment bolt screw holes 32 into which the height adjustment bolts 18 are screwed are formed in the first portion 30 (see FIG. 6). A female screw (not shown) into which the height adjusting bolt 18 is screwed is formed in the adjusting bolt screw hole 32. There are no particular restrictions on the number of bolt screw holes 32 in the first portion 30 or the location of the holes, and the holes 32 can be made at any location in the first portion 30.

  An elliptical filling hole 33 for filling the mortar 20 is formed in the central portion of the first portion 30 of the metal plate 24. Confirmation holes 34 for confirming the filling state of the mortar 20 are formed at the four corners of the first portion 30 (see FIG. 6). The first portion 30 is provided with a plurality of reinforcing plates 35 extending in the horizontal direction and the vertical direction. The reinforcing plates 35 are joined (fused) to the inner surface of the metal tube 23 and the upper surface of the metal plate 24 by welding. The reinforcing plate 35 functions as a reinforcing material that increases the strength of the metal tube 23 and the metal plate 24.

  The second portion 31 of the metal plate 24 has both end edges (periphery) extending in the lateral direction and both side edges (periphery) extending in the front-rear direction. A rectangular first side plate 36 erected upward from the end edge along both end edges thereof is joined (fused) to the second portion 31 by welding, and a rectangular erected upward from the side edge along both side edges thereof. The first side plate 36 is joined (fused) by welding. The first side plates 36 connected to the edge of the second portion 31 (including the first portion 30) extend in the lateral direction in parallel with each other. The first side plates 36 connected to the side edges of the second portion 31 extend in the front-rear direction in parallel with each other.

  A rectangular second side plate 37 located between the first side plates 36 and rising upward from the second portion 31 is joined (fused) to the second portion 31 of the metal plate 24 by welding. The second side plates 37 extend in the front-rear direction in parallel with each other. The first and second side plates 36 and 37 function as reinforcing plates that increase the strength of the second portion 31 of the metal plate 24. A space 38 surrounded by the second portion 31 of the metal plate 24 and the first side plate 36 is defined in the metal base 16. The space 38 is filled with mortar 20 (cured cement), and the mortar 20 is cured in the space 38 (see FIG. 3). Although not shown, a metal top plate may be disposed on the upper surface of the second portion 31 of the metal plate 24, and the top plate may block the opening of the space 38. In this case, the space 38 is not filled with the mortar 20, and the top plate is joined (fused) to the upper end edges of the first and second side plates 36 and 37 by welding.

  A plurality of support bolt insertion holes 39 (support bolt first insertion holes) through which the support bolts 19 are inserted are formed in the second portion 31 of the metal plate 24 (see FIG. 6). The support bolt insertion hole 39 is made by a drill and penetrates the second portion 31 of the metal plate 24 in the vertical direction. These support bolt insertion holes 39 are arranged in the second portion 31 at predetermined intervals in the lateral direction and the front-rear direction. In FIG. 6, eight support bolt insertion holes 39 are formed, but the number of the insertion holes 39 is not particularly limited, and the number is determined by structural calculation (strength calculation) performed before the foundation 10A is installed. .

  When the metal base 16 is temporarily installed at the installation location in the base temporary installation process, the first portion 30 of the metal pipe 23 and the metal plate 24 is directly above the concrete slab 13 provided at the intersection of the steel column 55 and the steel beam 56. The second portion 31 of the metal plate 24 is located immediately above the slab 13 provided in the steel beam 56, and the bolt head 45 of the height adjusting bolt 18 abuts on the upper surface of the slab 13. When the metal base 16 is temporarily installed at the installation location, the base 16 is self-supporting on the upper surface of the slab 13, supported by the height adjusting bolts 18 that are in contact with the upper surface of the concrete slab 13.

  After temporarily installing the metal base 16, the screwing positions of the height adjusting bolts 18 to the first portion 30 of the metal plate 24 of the base 16 are adjusted, and the installation height (high) of the base 16 from the upper surface of the concrete slab 13 is adjusted. The height dimension (the height dimension of the space 46) is adjusted (installation height adjusting step). The height adjusting bolt 18 is a hexagonal bolt formed from a shaft 44 on which a male screw (not shown) is made and a bolt head 45. The shaft 44 of the height adjusting bolt 18 is screwed in advance into an adjusting bolt screwing hole 32 formed in the first portion 30 of the metal plate 24.

  When the height adjusting bolt 18 is rotated counterclockwise in the bolt head 45, the shaft 44 of the bolt 18 gradually advances downward from the bolt screwing hole 32 and extends downward from the lower surface of the first portion 30. 45 contacts the upper surface of the concrete slab 13. Thereby, the metal base 16 can be spaced apart from the upper surface of the concrete slab 13 by a predetermined dimension. Conversely, when the height adjusting bolt 18 is rotated clockwise, the shaft 44 of the bolt 18 gradually advances upward from the bolt screw hole 32 and extends upward from the lower surface of the first portion 30. Thereby, the metal base 16 can be brought close to the upper surface of the concrete slab 13.

  By rotating the height adjusting bolt 18 in the adjusting bolt screw hole 32, the metal plate 24 of the metal base 16 is separated upward from the upper surface of the concrete slab 13, and between the upper surface of the slab 13 and the lower surface of the metal plate 24. A space 46 having a predetermined height is formed. In the installation height adjusting step, the adjusting bolt 18 is rotated clockwise or counterclockwise in the adjusting bolt screwing hole 32 to adjust the distance between the metal base 16 and the upper surface of the concrete slab 13. The height dimension of the space 46 can be adjusted by adjusting the screwing position of the height adjusting bolts 18 with respect to the first portion 30 of the metal plate 24 of the metal base 16, and the metal from the upper surface of the concrete slab 13 can be adjusted. The height dimension of the base 16 can be adjusted up to the length of the bolt 18.

  In the installation foundation construction method, the height dimension of the metal base 16 can be freely changed during the construction of the installation foundation 10A by using the height adjusting bolt 18, and immediately the change of the height dimension of the foundation 10A is requested. Can respond. In the installation foundation construction method, when installing a plurality of installation foundations 10A, the height dimensions of the foundations 10A can be easily adjusted, and the height dimensions of the foundations 10A can be made uniform.

  After adjusting the height dimension of the metal base 16, marking is performed on the drilled portion of the support bolt insertion hole 40 (bolt hole) of the concrete slab 13 in accordance with the position of the support bolt insertion hole 39 of the metal plate 24. Next, after the metal base 16 is temporarily retracted from the temporary installation location (installation location), a support bolt insertion hole 40 (support bolt second insertion hole) is drilled in the drilled location marked using a drill. Then, in accordance with the position of the support bolt insertion hole 39, a support bolt insertion hole 61 (support bolt third insertion hole) is drilled in the upper flange 58A of the H-shaped steel (bolt hole second drilling step). The support bolt insertion hole 40 penetrates the concrete slab 13 in the vertical direction, and the support bolt insertion hole 61 penetrates the upper flange 58A in the vertical direction. The support bolt insertion holes 40 and 61 coincide with the positions of the support bolt insertion holes 39 formed in the second portion 31 of the metal plate 24 when the metal base 16 is placed on the upper surface of the concrete slab 13. These support bolt insertion holes 40 and 61 are arranged in the concrete slab 13 in the lateral direction and the front-rear direction at a predetermined interval.

  FIG. 8 is a diagram showing a construction procedure of the installation foundation 10A continuing from FIG. 5, and FIG. 9 is a diagram showing a construction procedure of the installation foundation 10A continuing from FIG. After making the support bolt insertion holes 40 and 61 in the concrete slab 13 and the upper flange 58A by the second bolt hole drilling step, the metal base 16 is temporarily installed again at the installation location, and as shown in FIG. The support bolt 19 is inserted into the support bolt insertion hole 39 made in the second portion 31, the bolt 19 is inserted into the support bolt insertion hole 40 made in the slab 13, and the support bolt insertion made in the upper flange 58A. The bolt 19 is inserted into the hole 61.

  The support bolts 19 are made of steel and are standardized general-purpose products having the same length and diameter, and a plurality of them are manufactured at a base part manufacturing factory other than the construction site and then transported to the construction site. . The support bolt 19 has a first fixed end portion 47 and a second fixed end portion 48, and an intermediate portion 49 extending between the first and second fixed end portions 47 and 48. When the support bolt 19 is inserted into the support bolt insertion holes 39, 40, 61, the first fixed end portion 47 extends upward from the upper surface of the concrete slab 13, and the second fixed end portion 48 extends downward from the upper flange 58A. In addition, the intermediate portion 49 is located in the support bolt insertion holes 40 and 61.

  Next, a hexagonal double nut 50 (fixing means) is screwed onto a portion of the first fixed end portion 47 of the support bolt 19 that extends upward from the metal plate 24, and the second fixed end of the support bolt 19. A hexagonal double nut 51 (fixing means) is screwed onto the portion 48, and the support bolt 19 is fixed to the metal plate 24 and the H-shaped steel upper flange 58A (support bolt fixing step). When the hexagonal double nuts 50 and 51 are screwed onto the fixed ends 47 and 48 of the support bolt 19, the height adjustment bolt 18 has already adjusted the height dimension of the metal base 16 from the upper surface of the concrete slab 13. Yes.

  After the support bolt 19 is fixed to the metal plate 24 and the upper flange 58A of H-shaped steel, the mortar is placed in the space 38 surrounded by the second portion 31 and the first side plate 36 of the metal plate 24 as shown in FIG. 29 (hardened cement) is filled and the mortar 20 is cured. In order to eliminate the curing period of the mortar 20, although not shown, a metal top plate is disposed on the upper surface of the second portion 31 of the metal plate 24 instead of filling the mortar 20, and the space 38 is formed by the top plate. The top opening is closed (space closing process). In this case, the space 38 is not filled with the mortar 20 and the top plate is joined (fused) to the upper end edges of the first and second side plates 36 and 37 by welding.

  After the mortar 20 has hardened (after curing), or after the top opening of the space 38 is closed with a top plate, a triangular prism-shaped molding material 22 is placed at the intersection of the metal tube 23 and the metal plate 24, and the formation is completed. The mold member 22 is fixed to the metal tube 23 and the metal plate 24 via an adhesive (not shown). Further, a triangular prism-shaped molding material 22 is installed on the holding concrete 15 and the concrete slab 13, and the molding material 22 is fixed to the pressing concrete 15 and the slab 13 via an adhesive (not shown) (frame material installation). Process). When the molding material 22 is installed at the intersection between the metal tube 23 and the metal plate 24, the molding material 22 surrounds the entire outer peripheral edge of the metal tube 23. When the molding material 22 is installed on the holding concrete 15 and the concrete slab 13, the molding material 22 surrounds the entire outer peripheral edge of the metal plate 24, and the molding material 22 creates a gap between the concrete slab 13 and the outer peripheral edge of the metal plate 24. Block it.

  After the molding material 22 is installed, the waterproof layer 21 is formed on the outer side of each side plate 25 of the metal tube 23 and the outer side of the metal plate 24 (the upper surface of the mortar 20 filled with the space 38 or the upper surface of the top plate closing the space 38). (Waterproof layer installation process). In the waterproof layer installation step, a plurality of thin asphalt sheets are fixed to the outside of each side plate 25 of the metal tube 23, the outside of the metal plate 24, and the outside of the molding material 22 to form the waterproof layer 21. A portion (asphalt sheet fixed to the molding material 22) extending outward from the second portion 31 of the plate 24 is connected to the waterproof layer 14 of the concrete floor 12.

  In the waterproof layer installation process, asphalt waterproofing is used in which a plurality of thin asphalt sheets are stacked to form an asphalt sheet layer. The asphalt sheet is fixed to the side plate 25 of the metal tube 23, the mortar 20, the first and second side plates 36 and 37, and the molding material 22 by its adhesiveness. In addition to asphalt waterproofing, PVC sheet waterproofing, rubber sheet waterproofing, urethane waterproofing, epoxy waterproofing, and FRP waterproofing can also be used as the waterproof layer 21.

  In the installation foundation construction method, even when the installation foundation 10A is installed outdoors of the steel structure 11, the waterproof layer 21 can prevent water from entering the metal foundation 16, and the foundation due to water entering the foundation 16 can be prevented. 16 corrosion and strength reduction can be prevented. Moreover, the approach of water to the concrete floor 12 (slab 13) can be prevented, and the deterioration of the concrete floor 12 and the steel structure 11 by the approach of water can be prevented.

  After the waterproof layer 21 is installed, the mortar 20 (hardened cement material) is filled in a space 46 formed between the upper surface of the concrete slab 13 and the lower surface of the metal plate 24 (cement hardened material filling step). In the cement hardened material filling step, the mortar 20 is filled into the space 46 from the filling hole 33 while confirming the filling state of the mortar 20 in the space 46 from the confirmation hole 34. In the space 46, the mortar 20 filled therein is cured, and the mortar 20 is joined to the upper surface of the concrete slab 13 and the lower surfaces of the first and second portions 30 and 31 of the metal plate 24, and the support bolt 19. It is joined to.

  In the space 46, a portion of the first fixed end portion 47 of the support bolt 19 that extends between the upper surface of the concrete slab 13 and the second portion 31 of the metal plate 24 is integrated with the mortar 20. The hardened mortar 20 is a foundation when a building such as a solar panel, an antenna, a water tank, a septic tank, an air conditioner, or a building such as a steel tower or a steel structure is mounted on the foundation 10A (on the metal lid 17). The load applied to 10A is shared with the support bolt 19. In addition to the mortar 20, concrete can also be used as the hardened cement filling the space 46.

  In the installation foundation construction method, the space 46 can be filled with the mortar 20 using the filling hole 33 after the support bolt 19 is fixed to the metal plate 24 and the H-shaped steel upper flange 58A. 20 can be reliably filled. Since the installation foundation construction method can check the filling state of the mortar 20 filled in the space 46 using the confirmation hole 34, the mortar 20 is not filled in the space 46 and the mortar 20 is not filled. The entire space 46 can be filled evenly.

  Immediately after filling the space 46 with the mortar 20, without waiting for the curing period of the mortar 20, the metal lid 17 is immediately fitted into the top of the metal tube 23 to close the top opening 27 of the metal tube 23. The metal lid 17 is a standardized general-purpose product having the same shape and dimensions, and a plurality of them are manufactured at a base part manufacturing factory other than the construction site and then transported to the construction site. The metal lid 17 is made of a metal such as iron, aluminum, or alloy, and its planar shape is molded into a substantially rectangular shape. On the upper surface of the metal lid 17, although not shown in the figure, a solar panel, an antenna, a water storage tank, a septic tank, an air conditioner or other mechanical equipment, or a fixture for installing a building such as a steel tower or steel structure is attached. It has been.

  An angle member 41 (steel material) for fixing the lid 17 to the top of the metal tube 23 is joined (fused) by welding on the lower surface of the metal lid 17 and inside the periphery of the lid 17. A draining angle material 42 (steel material) is joined (fused) to the lower surface of the metal lid 17 and the periphery of the lid 17 by welding. A fixing bolt insertion hole (not shown) for inserting the lid fixing bolt 28 is made in the angle member 41, and a hexagon nut 43 is joined (fused) to the fixing bolt insertion hole by welding.

  After fitting the metal lid 17 on the top of the metal tube 23, the lid fixing bolt 28 is screwed into the fixing bolt screwing holes 29 formed on the side plates 25 of the metal tube 23, and the angle of the metal lid 17 is The bolt 29 is inserted into the lid fixing bolt insertion hole of the material 41, and the bolt 29 is screwed to the hexagon nut 43 attached to the bolt insertion hole to fix the lid 17 to the top of the metal tube 25 (top closing step) ( FIG. 3 support). The top opening 27 of the metal tube 24 is watertightly closed by the metal lid 17.

  In addition, since the space | gap (periphery of the space 46) is obstruct | occluded by the molding material 22, the molding material 22 becomes a bank which prevents the leakage of the mortar 20 before hardening, and the mortar 20 with which the space 46 was filled is a space | gap (space 46). The top opening 27 can be closed with the metal lid 17 immediately after the mortar 20 is filled. In the mounting base 10 </ b> A, the mortar 20 filled in the space 46 is in an uncured state immediately after the metal lid 17 is fitted (fixed) to the top of the metal tube 25, and the lid 17 is fixed to the top of the tube 25. The curing period for mortar 20 begins.

  In the space 46, the curing period of the mortar 20 elapses, and the mortar 20 filled therein is cured, whereby the upper surface of the concrete slab 13 and the metal plate 24 in the first fixed end portion 47 of the support bolt 19. A portion extending therebetween (a portion of the first fixed end portion 47 of the bolt 19 exposed downward from the lower surface of the plate 24) is integrated with the mortar 20 to form a reinforcing bar mortar. When the above steps are completed, the installation base 10A shown in FIGS.

  In the installation foundation construction method, immediately after filling the space 46 with the mortar 20, the top opening 27 of the metal tube 23 can be immediately closed with the metal lid 17 without waiting for the curing period of the mortar 20, and the foundation 10A can be completed. The construction period can be shortened by the curing period of the mortar 20 filled in the space 46, and a plurality of foundations 10A can be constructed in parallel without waiting for the curing period. In addition, when a metal top plate is disposed on the upper surface of the second portion 31 of the metal plate 24 and the top opening of the space 38 is blocked by the top plate, the mortar 20 is cured as compared with the case where the space 38 is filled with the mortar 20. The construction period can be shortened, and the construction period can be shortened accordingly.

The installation foundation construction method includes a temporary installation process of temporarily installing the metal base 16 at a predetermined installation location of the concrete slab 13, and an installation height for adjusting the installation height of the temporarily installed metal base 16 from the upper surface of the slab 13. Concrete adjustment in accordance with the position adjustment step, the bolt hole first drilling step of drilling the support bolt first insertion hole 39 in the metal plate 24, and the position of the support bolt insertion hole 39 formed in the second portion 31 of the metal plate 24. A bolt hole second drilling step for drilling support bolt insertion holes 40, 61 in the upper flange 58A of the slab 13 and the steel beam, and a support bolt 19 is inserted into the support bolt insertion holes 39, 40, 61, thereby providing a hexagonal double nut. A support bolt fixing step for fixing the support bolt 19 to the second portion 31 of the metal plate 24 and the upper flange 58A of the steel beam via 50, 51; A frame member installation step of installing a molding material 22 to close the gap between the outer periphery of the slab 13 and the base 16 between the outer edge and the concrete slab 13, the outer metal plate 24 of the side plates 25 of the metal tube 23 A waterproof layer installation step of installing the waterproof layer 21 on the outside of the slab, a cement hardened material filling step of filling the space 46 between the upper surface of the slab 13 and the lower surface of the metal plate 24 with the mortar 20, and the top of the metal tube 23 Since the foundation 10A is made from the metal tube closing process for fixing the metal lid 17 to each other, and each basic part made into a general-purpose part is assembled as a unit system in each process, the construction work can be made into a manual and the construction work Can be simplified.

  The installation foundation construction method does not need to produce a formwork at the construction site when forming the installation foundation 10A, and it is not necessary to cure the mortar to make the foundation 10A at the foundation manufacturing factory or construction site. The support bolt 19 is fixed to the second portion 31 of the metal plate 24 of the lightweight metal base 16 and the upper flange 58A of the steel beam, and immediately after the space 46 is filled with the mortar 20, the metal lid 17 is fixed to the metal tube 23. You can build a foundation just by doing it, save labor, cost and time for mold production and mortar curing, simplify the construction work, and greatly increase the construction period. Can be shortened.

  In the installation foundation construction method, the support bolt 19 is fixed to the second portion 31 of the metal plate 24 and the upper flange 58A of the steel beam, and the space 46 is filled with the mortar 20, so the installation foundation 10A is firmly attached to the steel structure 11. It is possible to make a foundation 10A that can be firmly equipped with solar panels, antennas, water storage tanks, septic tanks, machinery and equipment such as air conditioning equipment, and buildings such as steel towers and steel structures. In the installation foundation construction method, the load applied to the foundation 10A when the mortar 20 is filled in the space 46 between the upper surface of the concrete slab 13 and the lower surface of the metal plate 24 and the machinery and the building are provided on the foundation 10A. Since the load is shared between the support bolt 19 and the hardened mortar 20, the load applied to the foundation 10A is not inadvertently tilted or the foundation 10A is not collapsed, and the machine equipment and the building are reliably supported. 10A can be made.

  Even if the installation location of the installation foundation 10A is the concrete slab 13 provided with the waterproof layer 14 having a waterproof function on the roof or underground of the existing steel structure 11, the installation foundation waterproof layer 14 is installed. Since the foundation 10A is installed on the exposed slab 13 after the removal, and the waterproof layer 14 in the vicinity of the installation location can be repaired (a new waterproof layer 21 is applied) immediately after the foundation 10A is installed, the foundation 10A can be quickly The time required for installing the foundation 10A can be greatly shortened.

  FIG. 10 is a perspective view of an installation foundation 10B shown as another example, and FIG. 11 is a top view of the installation foundation 10B. FIG. 12 is a cross-sectional view taken along line BB in FIG. 10, and FIG. 13 is a diagram illustrating an example of a construction procedure for the installation foundation 10B. FIG. 14 is a diagram showing a construction procedure of the mounting base 10B continued from FIG. 13, and FIG. 15 is a top view of the metal base 16. FIG. 16 is a side view of the metal base 16. In FIG. 10, the vertical direction is indicated by an arrow X1, the horizontal direction is indicated by an arrow X2, and the front-rear direction is indicated by an arrow X3. In FIGS. 12-14, the steel structure 11 is shown as a cross section, and each component of the foundation 10B except a part is shown as a cross section.

  1 is different from that of FIG. 1 in that an anchor bolt 62 is used in place of the support bolt 19 and the anchor bolt 62 is fixed to an anchor hole 63 formed in the concrete slab 13. The support bolt insertion hole 61 is not formed in the upper flange 58A of the H-section steel forming 56. In addition, since the other structure of this foundation 10B is the same as that of the foundation 10A of FIG. 1, while attaching | subjecting the code | symbol same as the foundation 10A of FIG. 1, and using description of the foundation 10A of FIG. Detailed description of other components in the foundation 10B will be omitted.

  With reference to FIGS. 13 and 14 with reference to FIG. 6, an example of the installation foundation construction method will be described as an example in which the installation foundation 10 </ b> B is installed on the roof of the steel structure 11. In the installation foundation construction method, the installation foundation 10B is installed on the concrete slab 13 obtained by removing the pressing concrete 15 (mortar layer) and the waterproof layer 14 from the concrete floor 12, as in FIG. In the foundation construction method, each of the foundations for which the metal base 16 and the metal lid 17, the plurality of height adjusting bolts 18, the plurality of anchor bolts 62, the mortar 20, the waterproof layer 21, and the molding material 22 are generalized (standardized). The mounting base 10B is made by assembling the components in a predetermined procedure.

  At the time of shipment from the base part manufacturing factory, the anchor bolt insertion hole 39 (bolt hole) is not formed in the second portion 31 of the metal plate 24 described later, and the anchor bolt insertion is inserted into the second portion 31 at the construction site. Hole 39 is drilled. Further, a plurality of adjustment bolt screw holes 32 are formed in the first part 30 of the metal plate 24 in advance in a basic part manufacturing factory, and the height adjustment bolt 18 is screwed into the bolt screw holes 32. Yes.

  In the installation foundation construction method, each basic part (metal base 16, metal lid 17, height adjustment bolt 18, anchor bolt 62, waterproof layer 21, molding material 22) manufactured as a general-purpose part manufactured at a base part manufacturing factory is used. After transporting from the factory to the construction site, the installation location of the foundation 10B on the roof of the steel structure 11 is positioned, and the installation location of the concrete floor 12 is marked. Next, in the installation location, the pressing concrete 15 and the waterproof layer 14 are removed from the concrete floor 12, and the concrete slab 13 is exposed (in FIG. 6).

  After exposing the concrete slab 13 from the concrete floor 12, the position of the reinforcing bar installed in the slab 12 is measured using a sensor. Next, in order to install the anchor bolt 62 at a position where the reinforcing bars are avoided, a drilled portion at a position where the reinforcing bars of the anchor bolt insertion holes 39 (bolt holes) are avoided is marked on the second portion 31 of the metal plate 24. In accordance with the marking, an anchor bolt insertion hole 39 is drilled at the drilled portion of the second portion 31 of the metal plate 24 using a drill (bolt hole drilling step). After drilling the bolt insertion hole 39, as shown in FIG. 14, the metal base 16 is temporarily installed in the installation location in accordance with the marking of the foundation installation location in the slab 13 (base temporary installation process).

  The metal base 16 is formed from a metal tube 23 and a metal plate 24. The first portion 30 of the metal tube 23 and the metal plate 24 is disposed immediately above the concrete slab 13 provided at the intersection of the steel column 55 and the steel beam 56, and the second portion 31 of the metal plate 24 is a steel beam. It is arranged immediately above the concrete slab 13 provided at 56. The metal tube 23 is the same as that of the foundation 10A of FIG. In addition, the metal base 16 is light as much as the concrete is omitted, and by using the base 16, the weight of the foundation 10B can be significantly reduced.

  The metal plate 24 includes a first portion 30 that extends radially inward from the lower end edge of the metal tube 23, and a second portion 31 that extends radially outward from the lower end edge of the metal tube 23. The first portion 30 is formed with a plurality of adjustment bolt screw holes 32 into which the height adjustment bolts 18 are screwed (see FIG. 13). An elliptical filling hole 33 for filling the mortar 20 is formed at the center of the first part 30, and confirmation holes 34 for checking the filling state of the mortar 20 are formed at the four corners of the first part 30. (See FIG. 15). The first portion 30 is provided with a plurality of reinforcing plates 35 extending in the horizontal direction and the vertical direction.

  The second portion 31 of the metal plate 24 is provided with a first side plate 36 that rises upward from the end edge along both end edges, and the first side plate 36 that rises upward from the side edge along both side edges. is set up. Further, a second side plate 37 that is located between the first side plates 36 and stands upward from the second portion 31 is provided. A space 38 surrounded by the second portion 31 and the first side plate 36 of the metal plate 24 is filled with mortar 20 (hardened cement), and the mortar 20 is hardened in the space 38 (see FIG. 12). . As with the base 10 </ b> A of FIG. 1, a metal top plate may be disposed on the upper surface of the second portion 31 of the metal plate 24, and the top plate may block the opening of the space 38.

  When the metal base 16 is temporarily installed at the installation location in the base temporary installation process, the first portion 30 of the metal tube 23 and the metal plate 24 is directly above the concrete slab 13 provided at the intersection of the steel column 55 and the steel beam 56. The second portion 31 of the metal plate 24 is positioned immediately above the concrete slab 13 provided on the steel beam 56, and the bolt head 45 of the height adjusting bolt 18 abuts on the upper surface of the concrete slab 13. When the metal base 16 is temporarily installed at the installation location, the base 16 is self-supporting on the upper surface of the slab 13 supported by the height adjusting bolts 18 that are in contact with the upper surface of the concrete slab 13.

  After temporarily installing the metal base 16, the screwing positions of the height adjusting bolts 18 to the first portion 30 of the metal plate 24 of the base 16 are adjusted, and the installation height (high) of the base 16 from the upper surface of the concrete slab 13 is adjusted. The height dimension (the height dimension of the space 46) is adjusted (installation height adjusting step). The installation foundation construction method can use the height adjustment bolt 18 to freely change the height of the metal base 16 during construction of the foundation 10B, and immediately respond to the request for changing the height of the foundation 10B. can do. The installation foundation construction method can easily adjust the height dimensions of the foundations 10B when a plurality of them are installed, and can make the height dimensions of the foundations 10B uniform.

  In accordance with the position of the anchor bolt insertion hole 39 of the metal plate 24, marking is performed on the drilled portion of the anchor hole 63 of the concrete slab 13. Next, after temporarily retracting the metal base 16 from the temporary installation location (installation location), the anchor hole 63 is drilled in the drilled location marked using a drill (anchor hole drilling step). The anchor hole 63 extends up and down the concrete slab 13. The anchor hole 63 coincides with the position of the anchor bolt insertion hole 39 formed in the second portion 31 of the metal plate 24 when the metal base 16 is placed on the upper surface of the concrete slab 13. These anchor holes 63 are arranged in the concrete slab 13 at predetermined intervals in the lateral direction and the front-rear direction.

  After the anchor hole 63 is formed in the concrete slab 13 in the anchor hole drilling process, the metal base 16 is temporarily installed again at the installation location, and the anchor bolt formed in the second portion 31 of the metal plate 24 as shown in FIG. The anchor bolt 62 is inserted into the insertion hole 39 and the anchor bolt 62 is inserted into the anchor hole 63 formed in the slab 13.

  When the anchor bolt 62 is inserted into the insertion hole 39 and inserted into the anchor hole 63, the first fixed end portion 64 extends upward from the upper surface of the concrete slab 13, and the second fixed end portion 65 is positioned in the anchor hole 63. Next, a hexagonal double nut 50 (fixing means) is screwed onto a portion of the first fixed end portion 64 of the anchor bolt 62 that extends upward from the metal plate 24, and the anchor bolt 62 is connected to the metal plate 24 and concrete. It fixes to the slab 13 (anchor bolt fixing process). When the hexagonal double nut 50 is screwed onto the fixed end portion 64 of the anchor bolt 62, the height of the metal base 16 from the upper surface of the concrete slab 13 has already been adjusted by the height adjusting bolt 18. The second fixed end portion 65 of the anchor bolt 62 is fixed to the hole 63 by a resin adhesive (resin anchor) (not shown) injected into the anchor hole 63.

FIG. 17 is a diagram showing a construction procedure of the installation foundation 10B continued from FIG. After the anchor bolt 62 is fixed to the metal plate 24 and the anchor hole 63 of the concrete slab 13, the mortar is placed in the space 38 surrounded by the second portion 31 and the first side plate 36 of the metal plate 24 as shown in FIG. 29 is filled and the mortar 20 is cured. 1, instead of filling the mortar 20, a metal top plate may be disposed on the upper surface of the second portion 31 of the metal plate 24, and the top opening of the space 38 may be blocked by the top plate. (Space closing process).

  After the mortar 20 has hardened (after curing), or after the top opening of the space 38 is closed with a top plate, a triangular prism-shaped molding material 22 is placed at the intersection of the metal tube 23 and the metal plate 24, and the formation is completed. The mold member 22 is fixed to the metal tube 23 and the metal plate 24 via an adhesive (not shown). Further, a triangular prism-shaped molding material 22 is installed on the holding concrete 15 and the concrete slab 13, and the molding material 22 is fixed to the pressing concrete 15 and the slab 12 with an adhesive (not shown) (frame material installation). Process). When the molding material 22 is installed at the intersection between the metal tube 23 and the metal plate 24, the molding material 22 surrounds the entire outer peripheral edge of the metal tube 23. When the molding material 22 is installed on the holding concrete 15 and the concrete slab 13, the molding material 22 surrounds the entire outer peripheral edge of the metal plate 24, and the molding material 22 creates a gap between the concrete slab 13 and the outer peripheral edge of the metal plate 24. Block it.

  After the molding material 22 is installed, the waterproof layer 21 is formed on the outer side of each side plate 25 of the metal tube 23 and the outer side of the metal plate 24 (the upper surface of the mortar 20 filled with the space 38 or the upper surface of the top plate closing the space 38). (Waterproof layer installation process). In the waterproof layer installation step, a plurality of thin asphalt sheets are fixed to the outer side of each side plate 25 of the metal tube 23, the outer side of the metal plate 24, and the outer side of the molding material 22 in the same manner as the base 10 </ b> A of FIG. And a portion (asphalt sheet fixed to the molding material 22) extending outward from the second portion 31 of the metal plate 24 of the waterproof layer 21 is connected to the waterproof layer 14 of the concrete structure 11. In the installation foundation construction method, even when the installation foundation 10B is installed outdoors of the steel structure 11, the waterproof layer 21 can prevent water from entering the metal foundation 16, and the foundation by the water entering the foundation 16 can be prevented. 16 corrosion and strength reduction can be prevented. Moreover, the entrance of water to the concrete floor 12 can be prevented, and the deterioration of the concrete floor 12 and the steel structure 11 due to the entrance of water can be prevented.

  After the waterproof layer 21 is installed, the space 46 is filled with the mortar 20 (cement hardened material filling step). In the cement hardened material filling step, the mortar 20 is filled into the space 46 from the filling hole 33 while confirming the filling state of the mortar 20 in the space 46 from the confirmation hole 34. In the space 46, the mortar 20 filled therein is cured, and the mortar 20 is joined to the upper surface of the concrete slab 13 and the lower surfaces of the first and second portions 30 and 31 of the metal plate 24, and the anchor bolt 62. It is joined to.

  In the space 46, a portion of the first fixed end portion 47 of the anchor bolt 62 that extends between the upper surface of the concrete slab 13 and the second portion 31 of the metal plate 24 is integrated with the mortar 20. The hardened mortar 20 is a foundation when a building such as a solar panel, an antenna, a water tank, a septic tank, an air conditioner, or a building such as a steel tower or a steel structure is mounted on the foundation 10A (on the metal lid 17). The load applied to 10A is shared with the anchor bolt 62.

  In the installation foundation construction method, the space 46 can be filled with the mortar 20 using the filling hole 33 after the anchor bolt 62 is fixed to the metal plate 24 or the anchor hole 63 of the concrete slab 13. Can be reliably filled. Since the foundation construction method can check the filling state of the mortar 20 filled in the space 46 using the confirmation hole 34, the mortar 20 is not filled in the space 46 and the mortar 20 is filled in the space. The entire 46 region can be filled evenly.

  Immediately after filling the space 46 with the mortar 20, without waiting for the curing period of the mortar 20, the metal lid 17 is immediately fitted into the top of the metal tube 23 to close the top opening 27 of the metal tube 23. After fitting the metal lid 17 on the top of the metal tube 23, the lid fixing bolt 28 is screwed into the fixing bolt screwing holes 29 formed on the side plates 25 of the metal tube 23, and the angle of the metal lid 17 is The bolt 29 is inserted into the lid fixing bolt insertion hole of the material 41, and the bolt 29 is screwed to the hexagon nut 43 attached to the bolt insertion hole to fix the lid 17 to the top of the metal tube 25 (top closing step) ( FIG. 12 is used). The top opening 27 of the metal tube 24 is watertightly closed by the metal lid 17.

  In addition, since the space | gap (periphery of the space 46) is obstruct | occluded by the molding material 22, the molding material 22 becomes a bank which prevents the leakage of the mortar 20 before hardening, and the mortar 20 with which the space 46 was filled is a space | gap (space 46). The top opening 27 can be closed with the metal lid 17 immediately after the mortar 20 is filled. In the mounting base 10 </ b> B, the mortar 20 filled in the space 46 is in an uncured state immediately after the metal lid 17 is fitted (fixed) to the top of the metal tube 25, and the lid 17 is fixed to the top of the tube 25. The curing period for mortar 20 begins.

  In the space 46, the curing period of the mortar 20 elapses, and the mortar 20 filled therein is cured, so that the upper surface of the concrete slab 13 in the first fixed end portion 47 of the anchor bolt 62 and the metal plate 24. A portion extending therebetween (a portion of the first fixed end portion 47 of the bolt 19 exposed downward from the lower surface of the plate 24) is integrated with the mortar 20 to form a reinforcing bar mortar. When the above steps are completed, an installation base 10B shown in FIGS. 10 to 12 is completed.

  In the installation foundation construction method, immediately after filling the space 46 with the mortar 20, the top opening 27 of the metal tube 23 can be immediately closed with the metal lid 17 without waiting for the curing period of the mortar 20, and the foundation 10B can be completed. The construction period can be shortened by the curing period of the mortar 20 filled in the space 46, and a plurality of foundations 10B can be constructed in parallel without waiting for the curing period. In addition, when a metal top plate is disposed on the upper surface of the second portion 31 of the metal plate 24 and the top opening of the space 38 is blocked by the top plate, the mortar 20 is cured as compared with the case where the space 38 is filled with the mortar 20. The construction period can be shortened, and the construction period can be shortened accordingly.

The installation foundation construction method includes a temporary installation process of temporarily installing the metal base 16 at a predetermined installation location of the concrete slab 13, and an installation height for adjusting the installation height of the temporarily installed metal base 16 from the upper surface of the slab 13. The anchor hole is formed in the slab 13 in accordance with the height adjusting step, the bolt hole drilling step of drilling the anchor bolt insertion hole 39 in the metal plate 24, and the position of the anchor bolt insertion hole 39 formed in the second portion 31 of the metal plate 24. An anchor hole drilling step for drilling 63, an anchor bolt 62 is inserted into the anchor hole 63 while the anchor bolt 62 is inserted into the anchor bolt insertion hole 39, the anchor bolt 62 is fixed to the anchor hole 63 and the hexagonal double nut 50 Anchor bolt fixing step of fixing the anchor bolt 62 to the second portion 31 of the metal plate 24 via A frame member placing step of placing the molding material 22 for closing the gap between the outer peripheral edge of the slab 13 and the base 16 between the outer edge and the concrete slab 13 of the metal foundation 16, the side plates 25 of the metal tube 23 A waterproof layer installation step of installing the waterproof layer 21 on the outside and the outside of the metal plate 24; and a cement hardened material filling step of filling the space 46 between the upper surface of the slab 13 and the lower surface of the metal plate 24 with the mortar 20; Since the foundation 10B is made from the metal tube closing process of fixing the metal lid 17 to the top of the metal tube 23, and each basic part made into a general-purpose part is assembled as a unit system by each process, the construction work can be made manual. In addition, the construction work can be simplified.

  The installation foundation construction method does not need to produce a formwork at the construction site when forming the installation foundation 10B, and it is not necessary to cure the mortar to make the foundation 10B at the foundation manufacturing factory or construction site. Immediately after the anchor bolt 62 is fixed to the second portion 31 of the metal plate 24 of the lightweight metal base 16 and the anchor hole 63 of the concrete slab 13 and the mortar 20 is filled in the space 46, the metal lid 17 is attached to the metal tube 23. The foundation can be constructed simply by fixing, and the labor, cost and time required for the production of molds and mortar can be saved, and the construction work can be simplified. It can be greatly shortened.

  In the installation foundation construction method, the anchor bolt 62 is fixed to the second portion 31 of the metal plate 24 and the anchor hole 63 of the concrete slab 13 and the space 46 is filled with the mortar 20. It is possible to make a foundation 10B that can be firmly installed, and can be firmly equipped with solar panels, antennas, water storage tanks, septic tanks, machinery and equipment such as air-conditioning equipment, and buildings such as steel towers and steel structures. In the foundation construction method, mortar 20 is filled in the space 46 between the upper surface of the concrete slab 13 and the lower surface of the metal plate 24, and the load applied to the foundation 10B when mechanical equipment or a building is provided on the foundation 10B. Since the anchor bolt 62 and the hardened mortar 20 are shared, the foundation 10B that reliably supports the mechanical device and the building without being inclined inadvertently by the load applied to the foundation 10B or the foundation 10B collapsing. Can be made.

  Even when the installation location of the installation foundation 10B is a concrete slab 13 having a waterproof layer 14 having a waterproof function on the rooftop or underground of the existing steel structure 11, the installation foundation 10B is installed with the waterproof layer 14 at the installation location. Since the foundation 10B is installed on the exposed slab 12 and the beam 13 after the removal, the waterproof layer 14 in the vicinity of the installation location can be repaired (a new waterproof layer 21 is applied) immediately after the foundation 10B is installed. 10B can be installed quickly, and the time required to install the foundation 10B can be greatly shortened.

  18 is a perspective view of an installation base 10C shown as another example, FIG. 19 is a cross-sectional view taken along the line CC of FIG. 18, and FIG. 20 is a top view of the metal base 16. FIG. 21 is a side view of the metal base 16. In FIG. 18, the vertical direction is indicated by an arrow X1, the horizontal direction is indicated by an arrow X2, and the front-back direction is indicated by an arrow X3.

  The steel structure 11 on which the foundation 10 </ b> C is installed is formed of a steel frame 54 and a concrete floor 12 provided on the frame 54. The steel frame 54 is formed of a steel column 55 and a steel beam 56. An H-section steel having a web 57 and a flange 58 is used for the steel column 55 and the steel beam 56. Concrete 59 is cast on the H-shaped steel of the steel column 55. The H-shaped steels are connected via a connecting plate 60 fixed to the flanges 58. The concrete floor 12 is formed of a concrete slab 13, a waterproof layer 14 provided on the slab 13, and a pressing concrete 15 (mortar layer) provided on the waterproof layer 14. Although not shown, a plurality of reinforcing bars are embedded in the slab 13.

  In the installation foundation construction method, the installation foundation 10 </ b> C is installed on a concrete slab 13 obtained by removing the pressing concrete 15 and the waterproof layer 14 from the concrete floor 12. In the basic construction method, the metal base 16 and the metal lid 17, the plurality of height adjusting bolts 18, the plurality of anchor bolts 62, the mortar 20 (hardened cement), the waterproof layer 21, and the molding material 22 (frame material) Using each standardized (standardized) basic component, the basic component is assembled by a predetermined manual procedure to make an installation base 10A.

  The metal base 16 is a standardized general-purpose product having the same shape and dimensions, and a plurality of them are manufactured at a basic part manufacturing factory other than the construction site and then transported to the construction site. The metal base 16 is disposed on the concrete slab 13 obtained by removing the presser concrete 15 and the waterproof layer 14 from the concrete floor 12 (immediately above the concrete slab 13 provided at the intersection of the steel column 55 and the steel beam 56). ing. The metal base 16 is formed of a hollow cylindrical metal tube 23 (tube material) and a metal plate 24 (bottom plate) having a substantially rectangular planar shape. The metal base 16 is manufactured by welding a metal tube 23 to the upper surface of the metal plate 24. The metal tube 23 and the metal plate 24 are made of metal such as iron, aluminum, and alloy. The metal base 16 is lighter than the reinforced concrete foundation because the concrete is omitted. Therefore, by using the metal base 16, the weight of the foundation 10C can be significantly reduced.

  The metal tube 23 has each side plate 25 having a substantially rectangular shape, and its cross section is formed into a substantially rectangular shape. The metal tube 23 is disposed on the upper surface of the central portion of the metal plate 24, and the lower end edge thereof is joined (fused) to the upper surface of the metal plate 24 by welding. A hollow space 26 is defined by the side walls 25 in the metal tube 23, and a top opening 27 surrounded by the upper edge of the side plates 25 is formed at the top of the metal tube 23. A plurality of fixing bolt screw holes 29 for screwing the lid fixing bolts 28 are formed on the top of the metal tube 23. A female screw (not shown) into which the lid fixing bolt 28 is screwed is formed in the fixing bolt screw hole 29.

  The metal plate 24 includes a first portion 30 that extends radially inward from the lower end edge of the metal tube 23, and a second portion 31 that extends radially outward from the lower end edge of the metal tube 23. A plurality of adjustment bolt screw holes 32 into which the height adjustment bolts 18 are screwed are formed in the second portion 31 (see FIG. 20). A female screw (not shown) into which the height adjusting bolt 18 is screwed is formed in the adjusting bolt screw hole 32. There are no particular limitations on the number of bolt screw holes 32 and the drilling locations in the second portion 31, and the holes 32 can be made at any location in the second portion 31. A circular filling hole 33 for filling the mortar 20 is formed in the central portion of the first portion 30 of the metal plate 24. A confirmation hole 34 for confirming the filling state of the mortar 20 is formed in the second portion 31 (see FIG. 20).

  In the second portion 31 of the metal plate 24, a plurality of anchor bolt insertion holes 39 (bolt holes) through which the anchor bolts 62 are inserted are formed. The anchor bolt insertion hole 39 is made by a drill and penetrates the second portion 31 of the metal plate 24 in the vertical direction. These anchor bolt insertion holes 39 are arranged at predetermined intervals in the second portion 31 in the lateral direction and the front-rear direction. In FIG. 20, four anchor bolt insertion holes 39 are formed. However, the number of insertion holes 39 is not particularly limited, and the number is determined by structural calculation (strength calculation) performed before the foundation 10C is installed. .

  A plurality of anchor holes 63 through which the anchor bolts 62 are inserted are formed at the foundation installation position of the concrete slab 13. The anchor hole 63 is made by a drill and extends in the up-down direction in the slab 13 while avoiding the reinforcing bars embedded in the concrete slab 13. The anchor hole 63 coincides with the position of the anchor bolt insertion hole 39 formed in the second portion 31 of the metal plate 24 when the metal base 16 is placed on the upper surface of the concrete slab 13. These anchor holes 63 are arranged in the concrete slab 13 at predetermined intervals in the lateral direction and the front-rear direction.

  The metal lid 17 is a standardized general-purpose product having the same shape and dimensions, made of metal such as iron, aluminum, and alloy, and its planar shape is molded into a substantially rectangular shape. An angle member 41 (steel material) for fixing the lid 17 to the top of the metal tube 23 is joined (fused) by welding on the lower surface of the metal lid 17 and inside the periphery of the lid 17. A fixing bolt insertion hole (not shown) for inserting the lid fixing bolt 28 is made in the angle member 41, and a hexagon nut 43 is joined (fused) to the fixing bolt insertion hole by welding.

  The metal lid 17 is fixed to the top of the metal tube 24 by a lid fixing bolt 28 inserted into a fixing bolt insertion hole made in the angle member 41 and a hex nut 43 attached to the angle member 41. The top opening 27 is closed watertight. On the upper surface of the metal lid 17, although not shown in the figure, a solar panel, an antenna, a water storage tank, a septic tank, an air conditioner or other mechanical equipment, or a fixture for installing a building such as a steel tower or steel structure is attached. It has been.

  The height adjusting bolt 18 is a hexagonal bolt formed from a shaft 44 on which a male screw is formed and a bolt head 45. The shaft 44 of the height adjusting bolt 18 is screwed in advance into an adjusting bolt screwing hole 32 formed in the second portion 31 of the metal plate 24. When the height adjusting bolt 18 is rotated counterclockwise in the bolt head 45, the shaft 44 of the bolt 18 gradually advances downward from the bolt screwing hole 32 and extends downward from the lower surface of the second portion 31. 45 contacts the upper surface of the concrete slab 13. Thereby, the metal base 16 can be spaced apart from the upper surface of the concrete slab 13 by a predetermined dimension. Conversely, when the height adjusting bolt 18 is rotated clockwise, the shaft 44 of the bolt 18 gradually advances upward from the bolt screw hole 32 and extends upward from the lower surface of the second portion 31. Thereby, the metal base 16 can be brought close to the upper surface of the concrete slab 13.

  By rotating the height adjusting bolt 18 in the adjusting bolt screw hole 32, the metal plate 24 of the metal base 16 is separated upward from the upper surface of the concrete slab 13, and between the upper surface of the slab 13 and the lower surface of the metal plate 24. A space 46 having a predetermined height is formed. The height dimension of the space 46 can be adjusted by adjusting the screwing position of the height adjusting bolts 18 to the second portion 31 of the metal plate 24 of the metal base 16, and the metal from the upper surface of the concrete slab 13 can be adjusted. The height dimension of the base 16 can be adjusted up to the length of the bolt 18.

  The anchor bolt 62 is a standardized general-purpose product having the same length and diameter. The anchor bolt 62 is made of steel, and is inserted into the anchor bolt insertion hole 39 formed in the second portion 31 of the metal plate 24. Further, the concrete slab 13 is inserted into an anchor hole 63 formed in the shape 13. The anchor bolt 62 has a first fixed end portion 64 extending upward from the upper surface of the concrete slab 13 and a second fixed end portion 65 fixed to the slab 13.

  The first fixed end portion 64 of the anchor bolt 62 is inserted into an anchor bolt insertion hole 39 that opens in the metal plate 24 and is fixed to the metal plate 24 via a hexagon nut 50 (fixing means). The hexagon nut 50 is attached to a portion of the first fixed end portion 64 that extends upward from the metal plate 24. The second fixed end portion 65 of the support bolt 19 is fixed to the hole 63 by a resin adhesive (resin anchor) (fixing means) (not shown) injected into the anchor hole 63 of the concrete slab 13. When the hexagon nut 50 is screwed onto the first fixed end portion 64 of the anchor bolt 62, the height dimension of the metal base 16 from the upper surface of the concrete slab 13 has already been adjusted by the height adjusting bolt 18.

  The mortar 20 is filled in a space 46 formed between the upper surface of the concrete slab 13 and the lower surface of the metal plate 24. The mortar 20 is filled from a filling hole 33 formed in the metal plate 24. In the space 46, the mortar 20 filled therein is cured, and the mortar 20 is joined to the upper surface of the concrete slab 13 and the lower surfaces of the first and second portions 30 and 31 of the metal plate 24, and the anchor bolt 62. It is joined to.

  In the space 46, a portion of the first fixed end portion 64 of the anchor bolt 62 that extends between the upper surface of the concrete slab 13 and the second portion 31 of the metal plate 24 is integrated with the mortar 20. The hardened mortar 20 is a foundation when a building such as a solar panel, an antenna, a water storage tank, a septic tank, a mechanical device such as an air conditioner, or a building such as a steel tower or steel structure is mounted on the foundation 10C (on the metal lid 17). The load applied to 10C is shared with the anchor bolt 62.

  A molding material 22 (frame material) is installed at the intersection between the metal tube 23 and the metal plate 24, the holding concrete 15 and the concrete slab 13. The molding material 22 is fixed to the metal tube 23, the slab 13, and the pressing concrete 15 with an adhesive (not shown). The molding material 22 surrounds the entire outer peripheral edge of the metal tube 23, and is installed between the outer peripheral edge of the metal base 16 (the outer peripheral edge of the metal plate 24) and the concrete slab 13 to surround the entire outer peripheral edge of the metal plate 24. It is out. The molding material 22 closes the gap between the concrete slab 13 and the outer peripheral edge of the metal plate 24.

  The waterproof layer 21 is installed outside the side plates 25 of the metal tube 23 to cover the entire side plate 25, and is installed outside the metal plate 24 to cover the entire metal plate 24. As the waterproof layer 21, asphalt waterproofing is used in which a plurality of thin asphalt sheets are stacked to form an asphalt sheet layer. The asphalt sheet is fixed to the side plate 25 of the metal tube 23, the mortar 20, and the molding material 22 due to its adhesiveness. A portion extending outward from the second portion 31 of the metal plate 24 of the waterproof layer 21 (asphalt sheet fixed to the molding material 22) is connected to the waterproof layer 14 of the steel structure 11.

  FIG. 22 is a diagram showing an example of a construction procedure for the installation foundation 10C, and FIG. 23 is a diagram showing a construction procedure for the installation foundation 10C continued from FIG. FIG. 24 is a diagram showing a construction procedure of the installation foundation 10C continuing from FIG. 23, and FIG. 25 is a diagram showing a construction procedure of the installation foundation 10C continuing from FIG. 22-25, the steel structure 11 is shown as a cross section, and each part of the foundation 10C except a part is shown as a cross section. With reference to FIGS. 22 to 25, the construction procedure of the foundation 10 </ b> C will be described as an example in the case where the installation foundation 10 </ b> C is installed on the roof of the steel structure 11.

  At the time of shipment from the basic part manufacturing factory, the anchor bolt insertion hole 39 (bolt hole) is not formed in the second portion 31 of the metal plate 24, and the anchor bolt insertion hole 39 is formed in the second portion 31 at the construction site. Perforate. In addition, a plurality of adjustment bolt screw holes 32 are formed in the second part 31 of the metal plate 24 in advance in a basic part manufacturing factory, and the height adjustment bolt 18 is screwed into the bolt screw holes 32. Yes.

  Each basic part (metal base 16, metal lid 17, height adjustment bolt 18, anchor bolt 62, waterproof layer 21, molding material 22 (frame material)) manufactured as a general-purpose part manufactured at the base part manufacturing factory from the factory After transporting to the construction site, the installation location of the foundation 10C on the roof of the steel structure 11 is positioned, and the installation location is marked. Next, in the installation location, the pressing concrete 15 and the waterproof layer 14 are removed from the steel structure 11, and the concrete slab 13 is exposed.

  After exposing the concrete slab 13 from the steel structure 11, the position of the reinforcing bar installed in the slab 13 is measured using a sensor. Next, in order to install the anchor bolt 62 at a position where the reinforcing bars are avoided, the drilled portion of the anchor bolt insertion hole 39 where the reinforcing bar is avoided is marked on the second portion 31 of the metal plate 24. In accordance with the marking, an anchor bolt insertion hole 39 is drilled at the drilled portion of the second portion 31 of the metal plate 24 using a drill (anchor bolt hole drilling step). After drilling the anchor bolt insertion hole 39, as shown in FIG. 23, the metal base 16 is temporarily installed at the installation location in accordance with the marking of the foundation installation location in the concrete slab 13 (base temporary installation step).

  When the metal base 16 is temporarily installed in the base temporary installation process, the first and second portions 30 and 31 of the metal pipe 23 and the metal plate 24 are positioned on the concrete slab 13, and the bolt head 45 of the height adjusting bolt 18 is It contacts the upper surface of the concrete slab 13. When the metal base 16 is temporarily installed at the installation location, the base 16 is self-supporting on the upper surface of the slab 13, supported by the height adjusting bolts 18 that are in contact with the upper surface of the concrete slab 13.

  After temporarily installing the metal base 16, the screwing positions of the height adjusting bolts 18 to the second portion 31 of the metal plate 24 of the base 16 are adjusted, and the installation height (high) of the base 16 from the upper surface of the concrete slab 13 is adjusted. The height dimension (the height dimension of the space 46) is adjusted (installation height adjusting step). The installation foundation 10C can freely change the height dimension of the metal base 16 during construction of the foundation 10C by using the height adjusting bolt 18, and immediately responds to a request for changing the height dimension of the foundation 10C. be able to. The installation foundation 10C can easily adjust the height dimensions of the foundations 10C when a plurality of them are installed, and the height dimensions of the foundations 10C can be made uniform.

  After adjusting the height dimension of the metal base 16, marking is performed on the drilled portion of the anchor hole 63 of the concrete slab 13 in accordance with the position of the anchor bolt insertion hole 39 of the metal plate 24. Next, after temporarily retracting the metal base 16 from the temporary installation location (installation location), the anchor hole 63 is drilled in the drilled location marked using a drill (anchor hole drilling step). After the anchor hole 63 is formed in the concrete slab 13, the metal base 16 is temporarily installed again at the installation location, and the anchor bolt insertion hole 39 formed in the second portion 31 of the metal plate 24 is anchored as shown in FIG. The bolt 62 is inserted, and the anchor bolt 62 is inserted into the anchor hole 63 formed in the slab 13.

  When the anchor bolt 62 is inserted into the anchor bolt insertion hole 39 and the anchor hole 63, the first fixed end portion 64 extends upward from the upper surface of the concrete slab 13, and the second fixed end portion 65 extends into the anchor hole 63 of the slab 13. To position. A resin adhesive (resin anchor) (fixing means) (not shown) is injected into the anchor hole 63, and the second fixed end portion 65 of the anchor bolt 62 is fixed to the anchor hole 63 with the resin adhesive. ing. Next, a hexagon nut 50 is screwed into a portion of the first fixed end portion 64 of the anchor bolt 62 that extends upward from the metal plate 24, and the bolt 62 is fixed to the metal plate 24 and the concrete slab 13 ( Anchor bolt fixing process).

  After the anchor bolt 62 is fixed to the metal plate 24 and the concrete slab 13, as shown in FIG. 25, the molding material 22 ( Frame material) (frame material installation process). When the molding material 22 is installed, the molding material 22 surrounds the entire outer peripheral edge of the metal tube 23 and the entire outer peripheral edge of the metal plate 24, and the molding material 22 is between the concrete slab 13 and the outer peripheral edge of the metal plate 24. Block the gap.

  After the molding material 22 is installed, the waterproof layer 21 is installed on the outside of each side plate 25 of the metal tube 23 and the outside of the metal plate 24 (outside of the molding material 22) (waterproof layer installation process). In the waterproof layer installation step, a plurality of thin asphalt sheets are fixed to the outside of each side plate 25 of the metal tube 23 and the outside of the molding material 22 in the same manner as the foundation 10A in FIG. The waterproof layer 21 extending from 22 is connected to the waterproof layer 14 of the steel structure 11. The installation base 10C can prevent water from entering the metal base 16 by the waterproof layer 21 even when it is installed outdoors of the steel structure 11, and the base 16 due to water entering the inside can be prevented. Corrosion and strength reduction can be prevented. Moreover, entry of water into the steel structure 11 can be prevented, and deterioration of the structure 11 due to entry of water can be prevented.

  After the waterproof layer 21 is installed, the space 46 is filled with the mortar 20 (cement hardened material filling step). In the cement hardened material filling step, the mortar 20 is filled into the space 46 from the filling hole 33 while confirming the filling state of the mortar 20 in the space 46 from the confirmation hole 34. Since the installation foundation 10C can fix the anchor bolt 62 to the metal plate 24 or the concrete slab 13 and then fill the space 46 with the mortar 20 using the filling hole 33, the space 46 is reliably filled with the mortar 20. be able to. The installation base 10 </ b> C confirms the filling state of the mortar 20 filled in the space 46 using the confirmation hole 34, so that the mortar 20 is not filled in the space 46 and the mortar 20 is placed in the entire space 46. Can be filled evenly.

  Immediately after filling the space 46 with the mortar 20, without waiting for the curing period of the mortar 20, the metal lid 17 is immediately fitted into the top of the metal tube 23 to close the top opening 27 of the metal tube 23. After fitting the metal lid 17 on the top of the metal tube 23, the lid fixing bolt 28 is screwed into the fixing bolt screwing holes 29 formed on the side plates 25 of the metal tube 23, and the angle of the metal lid 17 is The bolt 29 is inserted into the lid fixing bolt insertion hole of the material 41, and the bolt 29 is screwed to the hexagon nut 43 attached to the bolt insertion hole to fix the lid 17 to the top of the metal tube 25 (top closing step) ( (See FIG. 19). The top opening 27 of the metal tube 25 is watertightly closed by the metal lid 17.

  In addition, since the space | gap (periphery of the space 46) is obstruct | occluded by the molding material 22, the molding material 22 becomes a bank which prevents the leakage of the mortar 20 before hardening, and the mortar 20 with which the space 46 was filled is a space | gap (space 46). The top opening 27 can be closed with the metal lid 17 immediately after the mortar 20 is filled. In the mounting base 10 </ b> C, the mortar 20 filled in the space 46 is in an uncured state immediately after the metal lid 17 is fitted (fixed) to the top of the metal tube 25, and the lid 17 is fixed to the top of the tube 25. The curing period for mortar 20 begins.

  In the space 46, the curing period of the mortar 20 elapses, and the mortar 20 filled therein is cured, so that the upper surface of the concrete slab 13 and the metal of the metal tube 25 in the first fixed end portion 64 of the anchor bolt 62. A portion extending between the plate 24 (a portion of the first fixed end portion 64 of the bolt 62 that is exposed downward from the lower surface of the plate 24) is integrated with the mortar 20 to form a reinforcing bar mortar. When the above steps are completed, the installation base 10C shown in FIGS. 18 and 19 is completed.

  In the installation foundation construction method, immediately after filling the space 46 with the mortar 20, the top opening 27 of the metal tube 23 can be immediately closed with the metal lid 17 without waiting for the curing period of the mortar 20 to complete the foundation 10 </ b> C. The construction period can be shortened by the curing period of the mortar 20 filled in the space 46, and a plurality of foundations 10C can be constructed in parallel without waiting for the curing period.

  The installation foundation construction method includes a temporary installation process of temporarily installing the metal base 16 at a predetermined installation location of the concrete slab 13, and an installation height for adjusting the installation height of the temporarily installed metal base 16 from the upper surface of the slab 13. The anchor hole is formed in the slab 13 in accordance with the height adjusting step, the bolt hole drilling step of drilling the anchor bolt insertion hole 39 in the metal plate 24, and the position of the anchor bolt insertion hole 39 formed in the second portion 31 of the metal plate 24. Anchor hole drilling step for drilling 63, the anchor bolt 62 is inserted into the anchor bolt insertion hole 39 and the anchor hole 63, and the anchor bolt 62 is connected to the second portion 31 of the metal plate 24 via the hexagonal double nut 50. An anchor bolt fixing step for fixing to the slab 13 and the slab 1 between the outer peripheral edge of the metal base 16 and the concrete slab 13 And a hardened cement that fills the space 46 between the upper surface of the slab 13 and the lower surface of the metal plate 24 with the mortar 20. Since the foundation 10C is made from the filling process and the metal tube closing process for fixing the metal lid 17 to the top of the metal tube 23, each basic part made into a general-purpose part is assembled as a unit system by each process. The construction work can be simplified.

  In the installation foundation construction method, it is not necessary to produce a formwork at the construction site when forming the installation foundation 10C, and it is not necessary to cure the mortar to make the foundation 10C at the foundation manufacturing factory or construction site. The anchor bolt 62 is fixed to the second portion 31 of the metal plate 24 of the lightweight metal base 16 and the concrete slab 13, and immediately after the space 46 is filled with the mortar 20, the metal lid 17 is simply fixed to the metal tube 23. The foundation can be constructed, and the labor, cost, and time required for mold production and mortar curing can be saved, and the construction work can be simplified and the construction period can be greatly shortened. be able to.

  In the installation foundation construction method, the anchor bolt 62 is fixed to the second portion 31 of the metal plate 24 and the concrete slab 13 and the space 46 is filled with the mortar 20, so that the installation foundation 10C is firmly installed in the steel structure 11. It is possible to make a foundation 10C that can be firmly equipped with solar panels, antennas, water storage tanks, septic tanks, machinery and equipment such as air conditioners, and buildings such as steel towers and steel structures. In the installation foundation construction method, the load applied to the foundation 10C in the case where the mortar 20 is filled in the space 46 between the upper surface of the concrete slab 13 and the lower surface of the metal plate 24 and the machinery and the building are provided on the foundation 10C. Since the anchor bolt 62 and the hardened mortar 20 are shared, the foundation 10C does not inadvertently incline due to the load applied to the foundation 10C, or the foundation 10C does not collapse. 10C can be made.

  Even when the installation location of the installation foundation 10C is the concrete slab 13 provided with the waterproof layer 14 having a waterproof function on the rooftop or underground of the existing steel structure 11, the installation foundation 10C is installed with the waterproof layer 14 at the installation location. Since the foundation 10C is installed on the exposed slab 13 after the removal, and the waterproof layer near the installation location can be repaired (a new waterproof layer 21 is applied) immediately after the foundation 10C is installed, the foundation 10C can be quickly installed. It can be installed, and the time required to install the foundation 10C can be greatly shortened.

DESCRIPTION OF SYMBOLS 10A Installation foundation 10B Installation foundation 10C Installation foundation 11 Steel structure 12 Concrete floor 13 Concrete slab 14 Waterproof layer 15 Pressing concrete 16 Metal base 17 Metal lid 18 Height adjustment bolt 19 Support bolt 20 Mortar (hardened cement)
21 Waterproofing layer 22 Molding material (frame material)
23 Metal pipe 24 Metal plate 26 Hollow space 27 Top opening 30 First part 31 Second part 33 Filling hole 34 Confirmation hole 36 First side plate 37 Second side plate 39 Support (anchor) bolt insertion hole (bolt hole)
40 Support bolt insertion hole (bolt hole)
46 Space 47 First fixed end 48 Second fixed end 50 Hexagon double nut (fixing means)
51 Hexagon double nut (fixing means)
52 Support bolt insertion hole (bolt hole)
53 Support Bolt Insertion Hole (Bolt Hole)
54 Steel frame 55 Steel column 56 Steel beam 57 Web 58 Flange 61 Anchor bolt insertion hole (bolt hole)
62 Anchor bolt 63 Anchor hole 64 First fixed end 65 Second fixed end

Claims (11)

In the construction method of the installation foundation installed at a predetermined location of the steel structure having a steel frame formed from a steel column and a steel beam and a concrete floor provided in the steel frame,
The installation foundation construction method is a base temporary installation step in which a metal base having a metal pipe and a metal plate connected to a lower end of the metal pipe is temporarily installed at a predetermined position of the concrete floor; and screwed to the metal plate An installation height adjusting step for adjusting the installation height of the temporarily installed metal base from the top surface of the concrete floor by adjusting the screwing position of the height adjustment bolt to the metal plate; A bolt hole first drilling step for drilling a support bolt first insertion hole, and a hole for supporting bolt second insertion in the concrete floor according to the position of the first support bolt insertion hole formed in the metal plate A bolt hole second drilling step of drilling a support bolt third insertion hole in the steel beam; and a support bolt inserted into the support bolt first to third insertion holes, and the support bolt is inserted into the metal via a predetermined fixing means. A support bolt fixing step of fixing the plate and the steel beam, molding materials to be busy Ide embankment the gap between the concrete floor and該土base outer peripheral edge of between the outer peripheral edge of the metal foundation and the concrete floor A frame material installation step, a waterproof layer installation step of installing a waterproof layer that is located outside the metal base and outside the molding material and covers the metal base and the molding material, and the concrete floor A cement hardened material filling step of filling a space between the upper surface and the lower surface of the metal plate with a cement hardened material, and a metal tube closing step of closing a top opening of the metal tube by fixing a metal lid to the top of the metal tube And
In the installation foundation construction method, leakage of the cement hardened material filled in the space by the molding material from the gap is prevented, and the cement hardened material is cured immediately after the cement hardened material is filled in the space. prior to the expiration of the period, the said mounting base in Rukoto the top opening is closed in the metal tube by a metal cap is completed, cement cured from after the top opening of the metal tube is blocked by the metal lid The curing period is started, and after the curing period elapses, a portion of the support bolt that extends between the concrete floor and the metal plate is integrated with the cement hardened material filled in the space. Installation foundation construction method. The metal plate includes a first portion extending radially inward of the metal tube and a second portion extending radially outward of the metal tube, and in the bolt hole first drilling step, The support bolt first insertion hole is drilled in a second portion, and in the bolt hole second drilling step, the concrete floor is formed in accordance with the position of the support bolt first insertion hole formed in the second portion of the metal plate. A support bolt second insertion hole is drilled and a support bolt third insertion hole is drilled in the steel beam. In the support bolt fixing step, a support bolt is inserted into the support bolt first to third insertion holes, and a predetermined bolt is inserted. The support bolt is fixed to the second portion of the metal plate and the steel beam via a fixing means, and in the frame material installation step, a gap between the outer peripheral edge of the second portion of the metal plate and the concrete floor The molding material is installed on the waterproof layer As the置工, mounting base construction method of claim 1 wherein installing the waterproof layer covering the molding material covering the metal foundation comprising a second portion of the metal plate.   The concrete floor is formed from a concrete slab provided on the steel column and the steel beam, a waterproof layer provided on the slab, and a pressing concrete provided on the waterproof layer, In the temporary foundation installation step, the pressing concrete and the waterproof layer are removed from the concrete floor to expose the slab, and the second portion of the metal plate is located on the slab provided on the steel beam. And temporarily mounting the metal base so that the metal pipe and the first portion of the metal plate are located on the slab provided at the intersection of the steel column and the steel beam. In the hole second drilling step, the support bolt second insertion hole is drilled in the slab in accordance with the position of the support bolt first insertion hole formed in the second portion of the metal plate. Mounting base construction method according to claim 2, wherein the perforating the support bolt third insertion hole trabeculae. In the construction method of the installation foundation installed at a predetermined location of the steel structure having a steel frame formed from a steel column and a steel beam and a concrete floor provided in the steel frame,
The installation foundation construction method is a base temporary installation step in which a metal base having a metal pipe and a metal plate connected to a lower end of the metal pipe is temporarily installed at a predetermined position of the concrete floor; and screwed to the metal plate An installation height adjusting step for adjusting the installation height of the temporarily installed metal base from the top surface of the concrete floor by adjusting the screwing position of the height adjustment bolt to the metal plate; A bolt hole drilling step for drilling a bolt hole; an anchor hole drilling step for drilling an anchor hole in the concrete floor in accordance with a position of the bolt hole formed in the metal plate; and an anchor bolt in the bolt hole and the anchor hole. The anchor bolt is fixed to the anchor hole, and the anchor bolt is fixed to the metal plate through a predetermined fixing means. And Nkaboruto fixing step, and the frame member installation step of installing a molding material comprising a busy Ide embankment the gap between the concrete floor and該土base of the outer peripheral edge between the outer periphery and the concrete floor of the metal foundation, A waterproof layer installation step of installing a waterproof layer that is located outside the metal base and outside the molding material and covers the metal base and the molding material; and an upper surface of the concrete floor and a lower surface of the metal plate A cement hardened material filling step of filling a space between the cement hardened material, and a metal tube closing step of fixing a metal lid to the top of the metal tube and closing the top opening of the metal tube,
In the installation foundation construction method, leakage of the cement hardened material filled in the space by the molding material from the gap is prevented, and the cement hardened material is cured immediately after the cement hardened material is filled in the space. prior to the expiration of the period, the said mounting base in Rukoto the top opening is closed in the metal tube by a metal cap is completed, cement cured from after the top opening of the metal tube is blocked by the metal lid The curing period is started, and after the curing period, a portion of the anchor bolt that extends between the concrete floor and the metal plate is integrated with the cement hardened material filled in the space. Installation foundation construction method. The metal plate includes a first portion that extends radially inward of the metal tube and a second portion that extends radially outward of the metal tube. In the bolt hole drilling step, a second portion of the metal plate is provided. In the anchor hole drilling step, the anchor hole is drilled in the concrete floor according to the position of the bolt hole formed in the second portion of the metal plate, and in the anchor bolt fixing step The anchor bolt is inserted into the bolt hole and the anchor hole, the anchor bolt is fixed to the anchor hole, and the anchor bolt is fixed to the second portion of the metal plate through a predetermined fixing means. In the material installation step, the molding material is installed in a gap between the outer peripheral edge of the second portion of the metal plate and the concrete floor, and in the waterproof layer installation step, the metal plate Mounting base construction method according to claim 4, wherein installing the waterproof layer covering the molding material covering the metal foundation comprising a second portion.   The concrete floor is formed from a concrete slab provided on the steel column and the steel beam, a waterproof layer provided on the slab, and a pressing concrete provided on the waterproof layer, In the temporary foundation installation step, the pressing concrete and the waterproof layer are removed from the concrete floor to expose the slab, and the second portion of the metal plate is located on the slab provided on the steel beam. And temporarily mounting the metal base so that the metal pipe and the first portion of the metal plate are located on the slab provided at the intersection of the steel column and the steel beam, 6. The mounting foundation application according to claim 5, wherein in the hole drilling step, an anchor hole is drilled in the slab in accordance with a position of a bolt hole formed in the second portion of the metal plate. Method. Wherein the waterproof layer installing step, mounting base construction method according to claim 6 claims 1 connecting the waterproof layer extending outside of the metal foundation into the waterproof layer of the concrete floor.   The second portion of the metal plate is connected to a first side plate that rises upward from a peripheral edge thereof, and a second side plate that is positioned between the first side plate and rises upward from the second portion. The foundation construction method according to any one of claims 1 to 7, wherein in the foundation construction method, the cement hardened material is filled in a space surrounded by the second portion of the metal plate and the first side plate.   The second portion of the metal plate is connected to a first side plate that rises upward from a peripheral edge thereof, and a second side plate that is positioned between the first side plate and rises upward from the second portion. The foundation construction method includes a space closing step of fixing the top plate to a top portion of a space surrounded by the second portion of the metal plate and the first side plate to close the space. The installation foundation construction method described.   A filling hole for filling the space with the cement hardened material is formed in a predetermined portion of the metal plate, and the cement hardened material is filled into the space from the filling hole in the cement hardened material filling step. The installation foundation construction method according to any one of Items 1 to 9.   A confirmation hole for confirming the cement hardened material filled in the space is formed in a predetermined portion of the metal plate, and in the cement hardened material filling step, the cement hardened material in the space from the confirmation hole is formed. The installation foundation construction method according to any one of claims 1 to 10, wherein the space is filled with a hardened cement material while confirming a filling state.

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