JP2012072648A - Installed foundation construction method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a foundation construction method capable of reducing labor and costs required for installation of a foundation and capable of shortening a construction period for the installation of the foundation.SOLUTION: An installed foundation construction method comprises: an anchor bolt installation step of installing a plurality of anchor bolts 15 in locations for installing a foundation 10; a metal pipe fixing step of fixing a steel pipe 19 to free ends 18 of the anchor bolts 15 in the state of separating the steel pipe 19 upward from a concrete skeleton 12; a waterproof member installation step of installing a waterproof member 31 outside a side wall 21 of the steel pipe 19; a cement-hardened material infilling step of infilling mortar 35 into space 29; a top closing step of fixing a cover 36 to the top of the steel pipe 19; and a protective member installation step of installing a calcium silicate plate 41 outside the waterproof member 31.

Description

  The present invention relates to an installation foundation construction method, and more specifically, to a new or existing concrete structure such as a solar panel, an antenna, a water storage tank, a septic tank, an air conditioner, or a building such as a steel tower or a steel structure. The present invention relates to an installation foundation construction method for constructing an installation foundation used for installation.

  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 mounted on a 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.

JP-A-9-070188

  In the solar cell panel mounting structure disclosed in Patent Document 1, it is not necessary to cure the concrete at the construction site, but the foundation must be made by curing the concrete at the foundation manufacturing factory. Is still necessary. Furthermore, since the manufactured foundation is transported from the factory to the construction site, and labor is required to transport the foundation having a considerable weight, the labor and cost for constructing the foundation cannot be reduced. 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.

  The object of the present invention is to make a strong foundation for installing machinery and buildings on a new or existing concrete structure, reduce the labor and cost required to install the foundation, and The object is to provide a foundation construction method capable of shortening the installation period.

  The premise of the present invention for solving the above-mentioned problem is an installation foundation construction method for constructing an installation foundation to be installed at a predetermined installation location of a new or existing concrete structure.

  The feature of the present invention based on the above premise is that the installation foundation construction method includes fixing the fixed ends of a plurality of anchor bolts at the installation location and raising the free ends of the anchor bolts upward from the concrete structure. And a metal tube fixing step of fixing a metal tube having a bottom wall and a peripheral wall extending upward from the periphery of the bottom wall to a free end portion of the anchor bolt via a fixing means in a state of being spaced upward from the concrete structure. The cement hardened material filling process fills the space formed between the concrete structure and the bottom wall of the metal tube, and the top of the metal tube is closed by fixing the metal lid to the top of the metal tube. And a top closing step.

  As an example of the present invention, the mounting foundation construction method is a molding material in which a molding material that closes a gap extending between the concrete structure and the peripheral edge of the bottom wall of the metal pipe is installed near the outer periphery of the peripheral edge of the bottom wall of the metal pipe. Including the installation process, in the cement hardened material filling process, the cement hardened material is filled in the space surrounded by the concrete structure, the bottom wall of the metal tube and the molding material, and in the top closing process, the cement hardened filling the space. Without waiting for the curing period of the object, the metal lid is fixed to the top of the metal tube immediately after the space is filled with the hardened cement material.

  As another example of the present invention, in the installation foundation construction method, immediately after the metal lid is fixed to the top of the metal tube, the hardened cement filled in the space is in an uncured state, and the metal lid is fixed to the top of the metal tube. After the curing period of the cement hardened material has started, the portion extending between the surface of the concrete structure and the bottom wall of the metal tube at the free end of the anchor bolt fills the space after the curing period has elapsed. It is united with the hardened cement material.

  As another example of the present invention, the installation foundation construction method includes a temporary installation step in which the metal pipe is temporarily installed at the installation location, and after the temporary installation of the metal pipe, the bottom wall of the metal pipe with respect to the free end of the anchor bolt. Adjusting the fixing position to adjust the installation height of the metal pipe from the concrete structure. In the metal pipe fixing process, after adjusting the installation height of the metal pipe, the free end of the anchor bolt Fix the bottom wall of the metal tube to the part.

  As another example of the present invention, the installation foundation construction method includes a height adjustment bolt that is screwed into a screw hole that is opened in the bottom wall of the metal pipe and adjusts the height dimension of the metal pipe, and adjusts the installation height. In the process, the height dimension of the space can be adjusted by adjusting the screwing position of the height adjusting bolt to the bottom wall of the metal pipe, and the height dimension of the metal pipe from the surface of the concrete structure can be adjusted.

  As another example of the present invention, a concrete structure is formed of a concrete frame, a waterproof layer provided on the concrete frame, and a concrete layer provided on the waterproof layer. The concrete layer and the waterproof layer are removed from the concrete structure to expose the concrete frame, and the fixed end of the anchor bolt is fixed to the installation position of the concrete frame. In the metal tube fixing process, the metal tube is moved upward from the concrete frame. The anchor bolts are fixed to the free ends of the anchor bolts in a separated state.

  As another example of the present invention, the installation foundation construction method includes a waterproof member installation step of installing a waterproof member on the outside of the peripheral wall of the metal tube, and the waterproof member is fixed to the outside of the peripheral wall of the metal tube; And a waterproof layer fixed to the outside of the foam material.

  As another example of the present invention, in the waterproof member installation step, the waterproof layer of the waterproof member extending to the bottom wall side of the metal tube is connected to the waterproof layer of the concrete structure.

  As another example of the present invention, the installation foundation construction method includes a protection member installation step in which a dry protection member that protects the waterproof member from impact is installed outside the waterproof member.

  As another example of the present invention, a filling hole for filling cement hardened material into a space between the concrete structure and the bottom wall of the metal pipe is formed in the center portion of the bottom wall of the metal pipe. In the object filling step, the cement hardened material is filled into the space from the filling hole.

  As another example of the present invention, a confirmation hole for confirming cement hardened material filled in a space between the concrete structure and the bottom wall of the metal pipe is formed in a predetermined portion of the bottom wall of the metal pipe. In the cement hardened material filling step, the filling state of the cement hardened material in the space is confirmed from the confirmation hole.

  According to the installation foundation construction method according to the present invention, an anchor bolt installation process in which a plurality of anchor bolts are installed at the installation location, and the metal pipe is fixed to the free end of the anchor bolt in a state of being spaced upward from the concrete structure. Each base part is made into a general-purpose part from the metal pipe fixing process, the cement hardened material filling process for filling the space with cement hardened material, and the top closing process for fixing the metal lid to the top of the metal pipe As a unit system is assembled by each process, the construction work can be manualized and 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 foundation, and it is not necessary to cure the hardened cement to create the foundation at the foundation manufacturing factory or construction site. Simply fix a hollow lightweight metal tube to multiple anchor bolts fixed to the structure, and then fix the metal lid to the metal tube, which saves time and effort for making the formwork and curing the hardened cement. It can be omitted and the construction period can be shortened. In the installation foundation construction method, the fixed ends of multiple anchor bolts are fixed to a concrete structure, and metal pipes are fixed to the free ends of the anchor bolts, so that the installation foundation can be firmly installed on the concrete structure. It 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 when a hardened cement material is filled in the space between the surface of the concrete structure and the bottom wall of the metal pipe, and mechanical equipment and buildings are firmly installed on the foundation. Since the anchor bolt and the hardened cement material are shared, the load applied to the foundation will not incline inadvertently or the foundation will not collapse, making it possible to create a foundation that reliably supports machinery and buildings. it can.

  Including a molding material installation step of installing a molding material for closing a gap extending between the concrete structure and the peripheral edge of the bottom wall of the metal pipe in the vicinity of the outside of the peripheral edge of the bottom wall of the metal pipe; Fill the space surrounded by the wall and molding material with cement hardened material, and wait for the curing period of the cement hardened material filled in the space, and immediately after filling the space with cement hardened material, put the metal lid on the metal tube The fixed foundation construction method to be fixed to the top is that the molding material installed near the outside of the periphery of the bottom wall serves as an embankment to prevent leakage of the hardened cement before hardening, and the hardened cement filled in the space leaks from that space. It is not necessary to install a mold for cemented material near the outside of the peripheral edge of the bottom wall, so it is possible to save labor and time for installing the mold and save the construction period of the installation foundation. Drastically shorten Door can be. The installation foundation construction method can fix the metal lid to the top of the metal tube immediately after filling the space with the cement hardened material without waiting for the curing period of the hardened cement material filled in the space. Since the next foundation can be constructed without waiting for the curing period, the construction period for the curing period of the hardened cement can be shortened, and the construction period of the installation foundation can be greatly shortened.

  Immediately after fixing the metal lid to the top of the metal tube, the cement hardened material filled in the space is in an uncured state, and after the metal lid is fixed to the top of the metal tube, the curing period of the cement hardened material starts, The fixed foundation construction method in which the portion extending between the surface of the concrete structure and the bottom wall of the metal pipe in the free end of the anchor bolt is integrated with the hardened cement filled in the space after the period has elapsed. Before the hardened cement filled in the space hardens, the metal lid can be fixed to the top of the metal tube, so that the next foundation can be constructed without waiting for the curing time of the hardened cement. The work period corresponding to the curing period of the cured product can be shortened, and the work period of the installation foundation can be greatly shortened. In the installation foundation construction method, after the curing period has elapsed, the anchor bolt part is integrated with the hardened cement material, and the load applied to the foundation when a mechanical device or building is firmly mounted on the foundation is fixed to the anchor bolt and cement. Since it is shared with the hardened material, it is possible to create a foundation that is firmly installed at the installation location of the concrete structure.

  Temporary installation process where the metal pipe is temporarily installed at the installation location, and after the metal pipe is temporarily installed, the installation position of the metal pipe from the concrete structure is adjusted by adjusting the fixing position of the bottom wall of the metal pipe relative to the free end of the anchor bolt The installation foundation adjustment method including the installation height adjustment process to adjust the height can change the height dimension freely during the construction of the foundation and can respond immediately to the change request of the foundation height dimension. it can. 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.

  In the installation height adjustment process, the height of the space can be adjusted by adjusting the screwing position of the height adjustment bolt to the bottom wall of the metal tube, and the height of the metal tube from the surface of the concrete structure can be adjusted. Possible installation foundation construction methods can use height adjustment bolts to freely change the height dimension during foundation construction, and can respond immediately to changes in the foundation height dimension. . 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.

  In the anchor bolt installation process, the concrete layer and the waterproof layer are removed from the concrete structure to expose the concrete frame, and the anchor bolt fixing end is fixed to the installation position of the concrete frame. The installation foundation construction method, in which the anchor bolts are fixed to the free ends of the anchor bolts while being spaced apart upward from the concrete frame, has a waterproof function on the rooftop and underground of existing concrete structures where the installation location for mechanical equipment and buildings is installed. Even if it is a slab with a waterproof layer applied, install the foundation on the exposed concrete frame after removing the waterproof layer at the installation location, and repair the waterproof treatment layer near the installation location immediately after installing the foundation (With a new waterproofing layer), the foundation can be installed quickly, It is possible to shorten the construction period required for.

  Including a waterproof member installation step of installing a waterproof member on the outside of the peripheral wall of the metal tube, wherein the waterproof member is formed of a foam material fixed to the outside of the peripheral wall of the metal tube and a waterproof layer fixed to the outside of the foam material The installation foundation construction method can prevent water from entering the inside of the foundation with a waterproofing member when the foundation is installed on the roof of a concrete structure, and prevent deterioration of the foundation due to water entering the inside. it can.

  In the waterproof member installation process, the installation foundation construction method that connects the waterproof layer of the waterproof member extending to the bottom wall side of the metal pipe to the waterproof layer of the concrete structure is the same as when the foundation is installed on the roof of the concrete structure. In addition to preventing water from entering the inside of the foundation, water can be prevented from entering the concrete structure, and deterioration of the foundation and concrete structure due to water entry can be prevented.

  The installation foundation construction method that includes a protective member installation process that installs a dry protection member that protects the waterproof member from impacts outside the waterproof member, even if an impact is applied from the outside of the foundation, the impact is absorbed by the protective member. Therefore, the waterproof member is not damaged by the impact, and the waterproof member can prevent water from entering the foundation or the concrete structure, and the deterioration of the foundation or the concrete structure caused by the water entering the inside. Can be prevented.

  In the cement hardened product filling process, the installation foundation construction method that fills the cement hardened material into the space from the filling hole formed in the center part of the bottom wall of the metal pipe uses the filling hole after fixing the metal pipe to the anchor bolt. Thus, the cement hardened product can be filled into the space, and the cement hardened product can be reliably filled into the space. In the installation foundation construction method, the filling hole is formed in the center of the bottom wall of the metal tube, so the hardened cement is not filled in the space, and the hardened cement is filled evenly throughout the space. Can do. In the installation foundation construction method, the load applied to the foundation when mechanical equipment or a building is installed on the foundation can be shared between the anchor bolt and the hardened cement, and the load applied to the foundation inclines it carelessly. And the foundation will not collapse, and you can make a foundation that supports machinery and buildings reliably.

  In the cement hardened material filling process, the installation foundation construction method for confirming the filling state of cement hardened material in the space from the confirmation hole formed at a predetermined location on the bottom wall of the metal tube is filled into the space using the confirmation hole. The state of filling of the hardened cement can be confirmed, the hardened cement is not filled in the space, and the hardened cement can be uniformly filled in the entire space. In the installation foundation construction method, the load applied to the foundation when mechanical equipment or a building is installed on the foundation can be shared between the anchor bolt and the hardened cement, and the load applied to the foundation inclines it carelessly. And the foundation will not collapse, and you can make a foundation that supports machinery and buildings reliably.

The perspective view of the installation foundation shown as an example. The figure which shows an example of the preparation procedure of an installation foundation. The figure which shows the preparation procedure of the installation foundation which continues from FIG. The side view of a steel pipe. The top view of a steel pipe. The figure which shows the preparation procedure of the installation foundation which continues from FIG. The figure which shows the preparation procedure of the installation foundation which continues from FIG. The figure which shows the preparation procedure of the installation foundation which continues from FIG. The figure which shows the preparation procedure of the installation foundation which continues from FIG. The figure which shows the preparation procedure of the installation foundation which continues from FIG. The top view of the installation foundation of the state which removed the cover. The top view of the installation foundation of the state which attached the lid | cover.

  The details of the installation foundation construction method according to the present invention will be described with reference to the accompanying drawings such as FIG. 1 which is a perspective view of the installation foundation 10 shown as an example. In FIG. 1, one installation foundation 10 installed in the concrete structure 11 is illustrated, but the number of foundations 10 is not limited to that illustrated, and two or more foundations 10 include the concrete structure 11. It may be installed in. FIG. 2 is a diagram showing an example of a procedure for creating the installation foundation 10, and FIG. 3 is a diagram showing a procedure for creating the installation foundation 10 continuing from FIG. 2 and 3, the concrete structure 11 is shown as a cross section. In FIG. 1 and FIG. 10 described later, the vertical direction is indicated by an arrow L, the horizontal direction is indicated by an arrow M, and the front-rear direction is indicated by an arrow N (only in FIG. 1).

  The installation foundation 10 is installed at a predetermined installation location on a roof of a new or existing concrete structure 11 or an underground slab. Here, “slab” strictly means “floor slab”, but in this embodiment, it is used to include not only the underground floor of the concrete structure 11 but also the rooftop. The installation foundation construction method includes a hollow steel pipe 19 (metal pipe) and a lid 36 (metal lid), a plurality of height adjusting bolts 24 and a plurality of anchor bolts 15, a mortar 35 (hardened cement), a waterproof member 31, and a molding material. 34 (chamfering material or cant), using each basic part made into a general-purpose part of calcium silicate board 41 (dry-type protective member), and assembling those basic parts in a predetermined manual procedure, create. These basic parts (steel pipe 19, lid 36, anchor bolt 15, height adjusting bolt 24, waterproof member 31, molded material 34, calcium silicate plate 41) are manufactured at the basic part manufacturing factory and transported from the factory to the installation site. Is done.

  Taking the case where the installation foundation 10 is installed on the roof of the concrete structure 11 as an example, the foundation construction method will be described as follows. As shown in FIG. 2, the roof slab of the concrete structure 11 includes a concrete frame 12, a waterproof layer 13 provided on the concrete frame 12, and a concrete layer 14 provided on the waterproof layer 13. Is formed. First, the installation location of the foundation 10 on the roof of the concrete structure 11 is positioned, and the installation location is marked, and the concrete layer 14 and the waterproof layer 13 are removed from the concrete structure 11 at the installation location. The housing 12 is exposed.

  In addition, although the concrete structure 11 of illustration is formed from the concrete frame 12, the waterproof layer 13, and the concrete layer 14, the concrete structure 11 is not limited to that of illustration and other currently used This construction method can be carried out on all concrete structures. For example, in the case of a concrete structure in which a synthetic resin is further applied on the concrete layer 14 to form a resin film, the resin film, the concrete layer 14 and the waterproof layer 13 are removed from the concrete structure at the installation location of the foundation 10. The concrete housing 12 is exposed. When the concrete structure 11 is constructed underground, the waterproof layer 13 and the concrete layer 14 do not exist, and the concrete structure 11 is formed by the concrete frame 12 alone.

  After the concrete housing 12 is exposed, a plurality of anchor holes 16 for inserting the anchor bolts 15 are drilled in the installation locations of the foundation 10 in the housing 12, and a resin adhesive (not shown) is injected into the anchor holes 16. The anchor hole 16 is formed by excavating the concrete frame 12 to a predetermined depth using an excavator. Next, as shown in FIG. 3, anchor bolts 15 are inserted into the anchor holes 16 (anchor bolt installation step).

  In the anchor bolt installation step, the fixed end 17 of the anchor bolt 15 is inserted into the anchor hole 16 formed in the concrete housing 12, and the free end 18 of the anchor bolt 15 is inserted from the surface of the concrete housing 12 (concrete structure 11). Stand up. The fixed end portion 17 of the anchor bolt 15 has its peripheral surface fixed to the anchor hole 16 via a resin adhesive, and the free end portion 18 of the anchor bolt 15 extends upward from the surface of the concrete frame 12 (concrete structure 11). Get up to. The anchor bolts 15 are standardized general-purpose products having the same length and diameter, and a plurality of them are manufactured at a basic part manufacturing factory other than the construction site. The anchor bolt 15 is made of steel. Male screws (not shown) are formed at the end portions 17 and 18 of the anchor bolt 15.

  FIG. 4 is a side view of the steel pipe 19 and FIG. 5 is a top view of the steel pipe 19. FIG. 6 is a diagram showing a procedure for creating an installation base continued from FIG. 3. In FIG. 6, the concrete structure 11 is shown as a cross section, and parts of the foundation 10 excluding a part are shown as a cross section. The steel pipe 19 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. The steel pipe 19 includes a bottom wall 20 having a substantially rectangular planar shape and each side wall 21 (peripheral wall) having a substantially rectangular planar shape extending upward from the peripheral edge 42 of the bottom wall 20 and is molded into a rectangular tube shape having a bottom. ing. The steel pipe 19 is manufactured by welding the peripheral edge 42 of the bottom wall 20 made of steel to the bottom of each side wall 21 made of steel. A top opening 22 surrounded by the side walls 21 is formed at the top of the steel pipe 19. In addition, a metal pipe can also be made from aluminum and an alloy other than steel materials.

  A plurality of fixing bolt screw holes 23 are formed at the top of the side wall 21 of the steel pipe 19. A female screw (not shown) is formed in the fixing bolt screw hole 23. The bottom wall 20 of the steel pipe 19 is formed with a plurality of adjustment bolt screwing holes 25 for screwing height adjustment bolts 24 (see FIG. 4) and a plurality of anchor bolt insertion holes 26 for inserting the anchor bolts 15. (See FIG. 5). The anchor bolt insertion hole 26 is made in the field. A female screw (not shown) is formed in the bolt screw hole 23.

  The height adjusting bolt 24 is a hexagonal bolt formed from a shaft on which a male screw (not shown) is made and a bolt head. The shaft of the height adjusting bolt 24 is screwed into an adjusting bolt screwing hole 25 formed in the bottom wall 20. In addition, there is no limitation in particular in the drilling location of the bolt screw hole 26 in the bottom wall 20, and the anchor bolt insertion hole 26, These holes 25 and 26 can be made in the arbitrary locations of the bottom wall 20. FIG. A circular filling hole 27 is formed in the center of the bottom wall 20. In the four corners of the bottom wall 20, confirmation holes 28 for confirming the filling state are formed.

  After the anchor bolt 15 is installed in the anchor hole 16, the steel pipe 19 is temporarily installed at the installation location (temporary installation process). In the temporary installation step, a drill is used to drill the anchor bolt insertion hole 26 in the bottom wall 20 of the steel pipe 19 in accordance with the position of the anchor hole 16 (position of the anchor bolt 15). The steel pipe 19 is moved to the installation location, and as shown in FIG. 6, the anchor bolt 15 is passed through the anchor bolt insertion hole 26 formed in the bottom wall 20 of the steel pipe 19, and the bolt head of the height adjusting bolt 24 is connected to the concrete housing 12. The steel pipe 19 is temporarily installed at the installation location.

  After temporarily installing the steel pipe 19, the fixing position of the bottom wall 20 of the steel pipe 19 with respect to the free end 18 of the anchor bolt 15 is adjusted to adjust the installation height of the steel pipe 19 from the surface of the concrete frame 12 (installation height). Adjustment process). In the installation height adjusting step, the height adjusting bolt 24 is rotated clockwise or counterclockwise, and the screwing position of the height adjusting bolt 24 with respect to the bottom wall 20 of the steel pipe 19 is adjusted. The height dimension of the space 29 between the surface of the concrete casing 12 and the bottom wall 20 of the steel pipe 19 is adjusted, and the height dimension of the bottom wall 20 of the steel pipe 19 from the surface of the concrete casing 12 is adjusted.

  Specifically, when the height adjustment bolt 24 is rotated counterclockwise in the bolt head, the bolt head of the bolt 24 abuts against the surface of the concrete housing 12 and the shaft of the bolt 24 is below the bolt screw hole 25. As it progresses gradually, it extends downward from the lower surface of the bottom wall 20. Thereby, the steel pipe 19 can be separated upward from the surface of the concrete housing 12. Conversely, when the height adjusting bolt 24 is rotated clockwise, the shaft of the bolt 24 gradually moves upward from the bolt screw hole 25 and extends upward from the lower surface of the bottom wall 12. Thereby, the steel pipe 19 can be brought close to the surface of the concrete housing 12.

  By rotating the height adjusting bolt 24 in the adjusting bolt screw hole 25, the bottom wall 20 of the steel pipe 19 is separated upward from the surface of the concrete housing 12, and between the surface of the concrete housing 12 and the bottom wall 20 of the steel pipe 19. A space 29 having a predetermined height is formed. By adjusting the screwing position of these height adjusting bolts 24 with respect to the bottom wall 20 of the steel pipe 19, the height dimension of the space 29 can be adjusted, and the bottom wall 20 of the steel pipe 19 from the surface of the concrete housing 12 can be adjusted. The height dimension can be adjusted.

  Although not shown, the height dimension of the steel pipe 19 from the surface of the concrete housing 12 can be adjusted without using the height adjusting bolt 24. In this case, a hexagon nut is attached to a portion of the free end portion 18 of the anchor bolt 15 that is exposed downward from the lower surface of the bottom wall 20 (a portion extending between the surface of the concrete housing 12 and the bottom wall 20 of the steel pipe 19). Screw it on. When the nut is rotated counterclockwise, the nut moves downward at the free end 18 of the anchor bolt 15, and the steel pipe 19 can be brought close to the surface of the concrete housing 12. Conversely, when the nut is rotated clockwise, the nut moves upward at the free end of the anchor bolt, and the steel pipe 19 can be separated upward from the surface of the concrete housing 12.

  The bottom wall 20 of the steel pipe 19 is separated upward from the surface of the concrete housing 12 by rotation of a nut screwed to a portion of the free end portion 18 of the anchor bolt 15 that is exposed downward from the lower surface of the bottom wall 20. A space 29 having a predetermined height is formed between the 12 surfaces and the bottom wall 20 of the steel pipe 19. By adjusting the screwing position of the nut with respect to the free end portion 18 of the anchor bolt 15, the height dimension of the space 29 can be adjusted, and the height dimension of the steel pipe 19 from the surface of the concrete housing 12 is adjusted. can do.

  The installation foundation construction method can change the height dimension freely during construction of the foundation 10 by using the height adjusting bolt 24, and can immediately respond to the change request of the height dimension of the foundation 10. it can. In the installation foundation construction method, when a plurality of foundations 10 are installed on the concrete structure 11, the height dimensions of the foundations 10 can be easily adjusted, and the height dimensions of the foundations 10 are made uniform. Can do.

  FIG. 7 is a diagram showing a procedure for creating an installation foundation continued from FIG. 6, and FIG. 8 is a diagram showing a procedure for creating the installation foundation continuing from FIG. 7. 7 and 8, the concrete structure 11 is shown as a cross section, and parts of the foundation 10 excluding a part are shown as a cross section. After adjusting the height dimension of the space 29 using the height adjusting bolt 24, as shown in FIG. 7, a portion of the free end portion 18 of the anchor bolt 15 that extends upward from the bottom wall 20 of the steel pipe 19 is formed. The hexagonal double nut 30 is screwed, and the steel pipe 19 is fixed to the free end 18 of the anchor bolt 15 with the height adjusting bolt 24 and the double nut 30 (fixing means) (metal pipe fixing step). In addition, after adjusting the height dimension of the space 29 without using the height adjusting bolt 24, a hexagonal double is formed on a portion of the free end portion 18 of the anchor bolt 15 that extends upward from the bottom wall 20 of the steel pipe 19. The nut 30 is screwed, and the steel pipe 19 is fixed to the free end 18 of the anchor bolt 15 with the hexagonal double nut 30 and the hexagonal nut (fixing means) (metal pipe fixing step).

  Next, the waterproof member 31 is installed outside the side wall 21 (circumferential wall) of the steel pipe 19 (waterproof member installation step). The waterproof member 31 is formed of a foam material 32 having a predetermined thickness fixed to the outside of the side wall 21 and a waterproof layer 33 fixed to the outside of the foam material 32. The foamed material 32 is made by fixing four of the rectangular planar shapes to the side wall 21 and assembling them into a hollow prism shape. The foam material 32 is a standardized general-purpose product having the same size and thickness, and a plurality of them are manufactured at a basic part manufacturing factory other than the construction site.

  In the waterproof member installation step, four foam materials 32 having a rectangular planar shape are prepared, and the foam materials 32 are arranged outside the side walls 21 so that the foam materials 32 cover the entire outer surface of each side wall 21. The foam materials 32 are fixed to the side walls 21 with an adhesive (not shown) and screws (not shown). After fixing these foam materials 32 to the side wall 21, a triangular prism shaped molding material 34 is placed on the bottom wall 20 side of the steel pipe 19 and outside the foam material 32 (near the outer periphery 42 of the bottom wall 20) ( Molding material installation process).

  The molding material 34 is fixed to the outer surface of the foam material 32 via an adhesive (not shown). The molding material 34 surrounds a gap of a predetermined height (periphery of the space 29) extending between the surface of the concrete housing 12 and the peripheral edge 42 of the bottom wall 20 of the steel pipe 19, and closes the void together with the foam material 32. In FIG. 7, the foam material 32 is also disposed in the space 29, but the lower end of the foam material 32 ends immediately above the space 29, and the molding material 34 may be disposed under the lower end of the foam material 32. . In this case, the molding material 34 surrounds the gap (periphery of the space 29), and the gap is closed only by the molding material 34. The molding material 34 is made of any one of foam material, plastic, wood, and metal (iron, aluminum, etc.).

  After the molding material 34 is installed, a plurality of thin asphalt sheets are fixed to the outer surface of the foam material 32 and the outer surface of the molding material 34 to form the waterproof layer 33, and the waterproof layer 33 (the steel pipe 19 of the steel pipe 19 is fixed to the molding material 34. The waterproof layer 33) extending to the bottom wall 20 side is connected to the waterproof layer 13 of the concrete structure 11. As the waterproof layer 33, asphalt waterproofing is used in which a plurality of thin asphalt sheets are stacked to form the waterproof layer 33. The asphalt sheet is fixed to the outer surface of the foam material 32 and the outer surface of the molding material 34 by its adhesiveness. In addition to asphalt waterproofing, PVC sheet waterproofing, rubber sheet waterproofing, urethane waterproofing, epoxy waterproofing, and FRP waterproofing can be used as the waterproof layer 33.

  The waterproof member 31 may be formed only from the waterproof layer 33. In this case, although not shown, the molding material 34 is installed on the bottom wall 20 side of the steel pipe 19 and outside the foam material 32 (near the outer periphery 42 of the bottom wall 20) (molding material installation process). ) After closing the gap (periphery of the space 29) with the molding material 34, a plurality of thin asphalt sheets are fixed to the outer surface of the steel pipe 19 and the outer surface of the molding material 34 to form a waterproof layer 33 and fixed to the molding material 34. The waterproof layer 33 (waterproof layer 33 extending toward the bottom wall 20 of the steel pipe 19) is connected to the waterproof layer 13 of the concrete structure 11.

  In the installation foundation construction method, the waterproof member 31 is installed outside the side wall 21 of the steel pipe 19, and the waterproof layer 33 of the waterproof member 31 extending to the bottom wall 20 side of the steel pipe 19 is connected to the waterproof layer 13 of the concrete structure 11. Therefore, when the foundation 10 is installed on the roof of the concrete structure 11, the waterproof layers 13 and 33 can prevent water from entering the foundation 10 and prevent water from entering the concrete structure 11. It is possible to prevent deterioration of the foundation 10 and the concrete structure 11 due to the ingress of water.

  After installing the waterproof member 31, as shown in FIG. 8, a space 29 formed between the surface of the concrete housing 12 and the bottom wall 20 of the steel pipe 19 (the surface of the concrete housing 12 and the bottom wall 20 of the steel pipe 19). The space 29) surrounded by the molding material 34 is filled with mortar 35 (hardened cement material) (cement hardened material filling step). In the cement hardened material filling step, the mortar 35 is filled into the space 29 from the filling hole 27 while confirming the filling state of the mortar 35 in the space 29 from the confirmation hole 28.

  Since the installation foundation construction method fills the space 29 with the mortar 35 from the filling hole 27 formed in the center portion of the bottom wall 20 of the steel pipe 19, the mortar 35 is not filled in the space 29, and the mortar 35 is not filled. Can be uniformly filled in the entire space 29. Further, since the filling state of the mortar 35 in the space 29 can be confirmed from the confirmation hole 28, the biasing of the mortar 35 in the space 29 is performed by performing the filling operation while confirming the filling state of the mortar 35 from the confirmation hole 28. Thus, the mortar 35 can be uniformly filled in the entire space 29.

  FIG. 9 is a diagram showing a procedure for creating an installation foundation continuing from FIG. 8, and FIG. 10 is a diagram showing a procedure for creating the installation foundation continuing from FIG. FIG. 11 is a top view of the installation foundation with the lid 36 removed, and FIG. 12 is a top view of the installation foundation with the lid 36 attached. 10 and 11, the concrete structure 11 is shown as a cross section, and parts of the foundation 10 excluding a part are shown as a cross section.

  After filling the space 29 with the mortar 35, the lid 36 is immediately fitted into the top of the steel pipe 19 without waiting for the curing period of the mortar 35 (the lid 36 is fixed to the top of the steel pipe 19), and the top opening 22 of the steel pipe 19 is closed. (Top closing step). Since the gap (periphery of the space 29) is blocked by the foam material 32 and the molding material 34, the foam material 32 and the molding material 34 serve as an embankment that prevents leakage of the mortar 35 before curing, and the space 29 is filled. Further, the mortar 35 does not leak from the gap (space 29), and the top opening 22 can be closed with the lid 36 immediately after the mortar 35 is filled. In the installation foundation construction method, the mortar 35 filled in the space 29 is in an uncured state immediately after the lid 36 is fitted (fixed) to the top of the steel pipe 19, and after the lid 36 is fixed to the top of the steel pipe 19. The curing period for the mortar 35 begins.

  The lid 36 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. The lid 36 is made of a steel material, and its planar shape is formed into a substantially rectangular shape. An angle member 37 (steel material) for fixing the lid 36 to the steel pipe 19 is attached by welding on the back surface of the lid 36 and inside the periphery of the lid 36. A draining angle 38 (steel material) is attached to the rear surface of the lid 36 and on the periphery of the lid 36 by welding. The angle member 37 is formed with a bolt insertion hole (not shown) through which the lid fixing bolt 39 is inserted, and a hexagon nut 40 is attached to the bolt insertion hole by welding.

  Although not shown in the figure, a fixing device for installing a building such as a solar panel, an antenna, a water storage tank, a septic tank, an air conditioner, or a building such as a steel tower or a steel structure is provided on the upper surface of the lid 36. It is attached. The metal lid 36 can be made of aluminum or an alloy in addition to the steel material. In the top closing step, after the lid 36 is fitted into the top of the steel pipe 19, the lid fixing bolt 39 is screwed into the fixing bolt screw hole 23 formed in the upper part of the side wall 21 of the steel pipe 19, and the angle of the lid 36 is The bolt 39 is inserted into the lid fixing bolt insertion hole of the material 37, and the bolt 39 is screwed to the hexagon nut 40 attached to the bolt insertion hole to fix the lid 36 to the top of the steel pipe 19. The top opening 22 of the steel pipe 19 is watertightly closed by a lid 36.

  In the space 29, the curing period of the mortar 35 elapses, and the mortar 35 filled therein is cured, so that the surface of the concrete housing 12 in the free end portion 18 of the anchor bolt 15 and the bottom wall 20 of the steel pipe 19 (The portion exposed downward from the lower surface of the bottom wall 20 in the free end portion 18 of the anchor bolt 15) is integrated with the mortar 35 to form a reinforcing bar mortar.

  The hardened mortar 35 is used to fix the load applied to the foundation 10 when the solar panel, antenna, water storage tank, septic tank, air conditioner and other machinery and equipment such as steel towers and steel structures are provided on the foundation 10 as anchor bolts. Share with 15. In addition to the mortar 35, concrete can also be used as the hardened cement filling the space 29. When concrete is used, a portion of the free end portion 18 of the anchor bolt 15 that is exposed downward from the lower surface of the bottom wall 20 is integrated with the concrete to form reinforced concrete.

  After fixing the lid 36 to the top of the steel pipe 19, a calcium silicate plate 41 (dry protection member) is installed outside the waterproof member 31 (protection member installation step). The calcium silicate plate 41 is a standardized general-purpose product having the same size and thickness, and a plurality of them are manufactured at a basic part manufacturing factory other than the construction site. In the protective member installation step, four calcium silicate plates 41 having a rectangular planar shape are prepared, and the calcium silicate plates 41 are arranged so that the calcium silicate plates 41 cover the entire waterproof member 31 (asphalt sheet). Arranged outside the waterproof member 31, the top of the plate 41 is fixed to the bottom surface of the lid 36 via a fixing bracket (not shown), and the bottom of the plate 41 is fixed to the concrete structure via a fixing bracket (not shown). 11 is fixed to the surface of the concrete layer 14. When the above steps are completed, the installation base 10 shown in FIG. 11 is completed.

  In the installation foundation construction method, since the calcium silicate plate 41 (protective member) that protects the waterproof member 31 from impact is installed outside the waterproof member 31, even if an impact is applied from the outside of the foundation 10, the calcium silicate The impact is absorbed by the plate 41, and the waterproof member 31 is not damaged by the impact. The waterproof member 31 can prevent water from entering the foundation 10 or the concrete structure 11, and water can enter the interior. It is possible to prevent the deterioration of the foundation 10 and the concrete structure 11 due to the operation.

  The installation foundation construction method includes an anchor bolt installation process in which a plurality of anchor bolts 15 are installed at the installation location of the foundation 10, and the anchor bolts 15 in a state where the steel pipe 19 is spaced upward from the concrete frame 12 (concrete structure 11). A metal tube fixing step for fixing to the free end 18, a molding material installation step for installing the molding material 34 in the vicinity of the outer periphery 42 of the bottom wall 20 of the steel pipe 19, and a waterproof member 31 on the outer side of the side wall 21 of the steel pipe 19. A waterproof member installation step for installing, a cement hardened material filling step for filling the space 29 with mortar 35, a top closing step for fixing the lid 36 to the top of the steel pipe 19, and a calcium silicate plate 41 on the outside of the waterproof member 31 The base 10 is made from the protective member installation process to be installed, and each basic part made into a general-purpose part is assembled as a unit system by those processes. Since the ether, it is possible to manual of the construction work, it is possible to simplify the construction work.

  In the installation foundation construction method, it is not necessary to produce a formwork at the construction site when forming the foundation 10, and it is not necessary to cure the mortar 35 to make the foundation 10 at the foundation manufacturing factory or construction site. A hollow lightweight steel pipe 19 is fixed to a plurality of anchor bolts 15 fixed to the concrete housing 12, a waterproof member 31 and a calcium silicate plate 41 are fixed to the outside of the steel pipe 19, and a lid 36 is attached to the steel pipe 19. It is only fixed, and the labor and time required for the production of the mold and the curing of the mortar can be saved, and the work period can be shortened accordingly.

  In the installation foundation construction method, the fixed ends 17 of the plurality of anchor bolts 15 are fixed to the concrete frame 12, and the steel pipe 19 is fixed to the free ends 18 of the anchor bolts 15. Therefore, the installation foundation 10 is fixed to the concrete structure 11. It can be firmly installed, and 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 frame constructions. The installation foundation construction method is applied to the foundation 10 when a mortar 35 is filled in a space 29 between the surface of the concrete frame 12 and the bottom wall 20 of the steel pipe 19, and mechanical equipment or a building is provided on the foundation 10. Since the load can be shared between the anchor bolt 15 and the mortar 35, the load applied to the foundation 10 does not inadvertently incline or the foundation 10 collapses, and the machine equipment and the building are reliably supported. Make a foundation 10 to do.

  In the installation foundation construction method, the molding material 34 installed in the vicinity of the outer periphery 42 of the bottom wall 20 of the steel pipe 19 serves as an embankment that prevents leakage of the mortar 35 (hardened cement) before hardening, and the mortar filled in the space 29 35 does not leak out of the space 29, so that it is not necessary to install a mold for the mortar 35 in the vicinity of the outer periphery 42 of the bottom wall 20, and time and labor for installing the mold can be saved. The construction period of the installation foundation 10 can be greatly shortened. The installation foundation construction method can fix the lid 36 to the top of the steel pipe 19 immediately after filling the space 28 with the mortar 35 without waiting for the curing period of the mortar 35 filled in the space 29. Since the next foundation 10 can be constructed without waiting for the period, the construction period for the curing period of the mortar 35 can be shortened, and the construction period of the installation foundation 10 can be greatly shortened.

DESCRIPTION OF SYMBOLS 10 Installation foundation 11 Concrete structure 12 Concrete frame 13 Waterproof layer 14 Concrete layer 15 Anchor bolt 16 Anchor hole 17 Fixed end part 18 Free end part 19 Steel pipe (metal pipe)
20 Bottom wall 21 Side wall (peripheral wall)
22 Top opening 24 Height adjustment bolt 27 Filling hole 28 Confirmation hole 29 Space 31 Waterproof member 32 Foam material 33 Waterproof layer 34 Molding material 35 Mortar (hardened cement)
36 Lid (metal lid)
41 Calcium silicate board (dry protection member)
42

Claims (11)

In an installation foundation construction method for constructing an installation foundation to be installed at a predetermined installation location of a new or existing concrete structure,
The installation foundation construction method includes an anchor bolt installation step of fixing fixed ends of a plurality of anchor bolts to the installation location and raising the free ends of the anchor bolts upward from the concrete structure; a bottom wall; and A metal pipe fixing step of fixing a metal pipe having a peripheral wall extending upward from a peripheral edge of the bottom wall to a free end portion of the anchor bolt via a fixing means in a state of being spaced apart from the concrete structure; and the concrete structure A cement hardened material filling step of filling the space formed between the object and the bottom wall of the metal tube with a cement hardened material, and fixing the metal lid to the top of the metal tube to close the top opening of the metal tube A top foundation closing method characterized by comprising: a top closing step.   The installation foundation construction method includes a molding material installation step of installing a molding material that closes a gap extending between the concrete structure and a peripheral edge of the bottom wall of the metal pipe in the vicinity of the outside of the peripheral edge of the bottom wall of the metal pipe. In the cement hardened material filling step, the space surrounded by the concrete structure, the bottom wall of the metal tube, and the molding material is filled with cement hardened material, and in the top closing step, the space is filled. The installation foundation construction method according to claim 1, wherein the metal lid is fixed to the top of the metal pipe immediately after the space is filled with the cement hardened material without waiting for a curing period of the hardened cement hardened material.   In the installation foundation construction method, immediately after fixing the metal lid to the top of the metal tube, the hardened cement filled in the space is in an uncured state, and after fixing the metal lid to the top of the metal tube After the curing period of the cement hardened material starts and the curing period has elapsed, a portion of the free end of the anchor bolt that extends between the surface of the concrete structure and the bottom wall of the metal tube is The installation foundation construction method according to claim 2, which is integrated with the hardened cement filled in the space.   The installation foundation construction method includes a temporary installation step in which the metal pipe is temporarily installed at the installation location, and a temporary position of the metal pipe, and a fixed position of the bottom wall of the metal pipe with respect to a free end of the anchor bolt. Adjusting the installation height of the metal pipe from the concrete structure to adjust the installation height of the anchor bolt after adjusting the installation height of the metal pipe in the metal pipe fixing step. The installation foundation construction method according to any one of claims 1 to 3, wherein a bottom wall of the metal pipe is fixed to a free end.   The installation foundation construction method includes a height adjustment bolt that is screwed into a screw hole that is opened in a bottom wall of the metal tube to adjust a height dimension of the metal tube, and in the installation height adjustment step, The height dimension of the space can be adjusted and the height dimension of the metal tube from the surface of the concrete structure can be adjusted by adjusting the screwing position of the height adjusting bolt to the bottom wall of the metal tube. The installation foundation construction method according to claim 4.   The concrete structure is formed of a concrete case, a waterproof layer provided on the concrete case, and a concrete layer provided on the waterproof layer. In the anchor bolt installation step, the concrete structure is formed. The concrete layer and the waterproof layer are removed from the concrete casing to expose the concrete casing, and a fixed end of the anchor bolt is fixed to an installation location of the concrete casing. In the metal pipe fixing step, the metal pipe is connected to the concrete The installation foundation construction method according to any one of claims 1 to 5, wherein the anchor bolts are fixed to the free ends of the anchor bolts while being spaced apart upward from the housing.   The installation foundation construction method includes a waterproof member installation step of installing a waterproof member on the outer side of the peripheral wall of the metal tube, and the waterproof member is fixed to the outer side of the peripheral wall of the metal tube, and the foamed material The installation foundation construction method according to any one of claims 1 to 6, wherein the installation foundation construction method is formed from a waterproof layer fixed to the outer side of the base.   The installation foundation construction method according to claim 7, wherein, in the waterproof member installation step, the waterproof layer of the waterproof member extending toward the bottom wall of the metal pipe is connected to the waterproof layer of the concrete structure.   The installation foundation construction method according to claim 7 or 8, wherein the installation foundation construction method includes a protection member installation step of installing a dry-type protection member that protects the waterproof member from an impact outside the waterproof member.   A filling hole for filling the cement hardened material into a space between the concrete structure and the bottom wall of the metal pipe is formed in a central portion of the bottom wall of the metal plate tube, and filling the cement hardened material The installation foundation construction method according to any one of claims 1 to 9, wherein in the step, the hardened cement material is filled into the space from the filling hole.   A confirmation hole for confirming the cement hardened material filled in a space between the concrete structure and the bottom wall of the metal tube is formed at a predetermined position of the bottom wall of the metal tube, and the cement is formed. The fixed foundation construction method according to any one of claims 1 to 10, wherein in the cured product filling step, a state of filling of the cement cured product in the space is confirmed from the confirmation hole.

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