JP2013194376A - Foundation structure for outdoor facility installation - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a foundation structure for outdoor facility installation which is low-priced and easy to handle.SOLUTION: A foundation 1 is formed which comprises: a frame member 2 including a base part 2a having a rectangular tubular shape, and an upper flange part 2b and a lower flange part 2c integrally mounted to an upper end and a lower end of the base part 2a by welding or the like, respectively; mortar 3 filling the inside of the frame member 2; a reinforcing member 4 which is formed by combining reinforcing-bars in a crossing shape, pushed and embedded into a bottom part in the mortar 3 along a diagonal on a cross section of the base part 2a before hardening the mortar 3; and a bolt 5, longer than a height of the frame member 2, fixed to a central part of the reinforcing member 4 by welding or the like.

Description

  The present invention relates to a foundation structure for installing outdoor equipment, which is a foundation for installing outdoor equipment such as a solar battery panel at a place where a new or existing concrete structure is installed.

  Conventionally, a solar power generation system, which is an outdoor facility, and a stand that supports multiple pipes for air conditioning are installed on the roof of the building, and other outdoor facilities such as antennas and water tanks are installed on the roof of the building. . At that time, a plurality of foundations for installing outdoor facilities such as a photovoltaic power generation system are provided on the building roof.

  As a foundation of this kind, mortar is filled inside a bottomed cylinder, and anchor bolts planted on the building roof are penetrated from below into the bottom wall of the bottomed cylinder and the mortar filled in the cylinder. (See paragraph 0016 of Patent Document 1 and FIG. 1), concrete or reinforced concrete transportable block foundations are installed at a plurality of installation places, and anchor bolts are embedded in the upper parts of these block foundations. The shape foundation can be bonded to the concrete surface of the installation site using a thin cement layer as an adhesive (see paragraphs [0012] to [0014] of Patent Document 2 and FIGS. 1 to 3), and anchor bolts on the top of the concrete rectangular block body A rubber plate member with an adhesive injection space inside is fixed to the bottom surface of the block body, and the top surface of the block body is Pre-forms a passage that leads from the side to the space of the block body, and injects an adhesive such as a concrete adhesive into the passage to adhere to the concrete at the installation location under the plate member (patent (See paragraph 3 of reference 3 and FIG. 1).

JP 2011-231481 A JP-A-9-70188 Japanese Patent Laid-Open No. 9-60003

  However, in the thing of above-mentioned patent document 1, the mortar with which the bottomed cylindrical body was filled, and the concrete of a base contact, but do not exhibit an adhesive force, but outdoor by the holding force of the anchor bolt which was planted. Because it is a structure that supports the equipment, anchor bolts must be driven into the concrete surface of the building and planted, which is very time-consuming and causes deterioration due to water leakage in the underlying concrete. There is a problem.

  Moreover, in the thing of above-mentioned patent document 2, since a block-shaped foundation and the ground concrete surface are adhere | attached with a thin cement layer, although it is not necessary to plant an anchor bolt like patent document 1, it is a block shape. When the foundation is made of concrete, the block-shaped foundation is bare concrete, so when a load in the pulling direction is applied to the anchor bolt, the block-shaped foundation itself is prone to cracking and the block-shaped foundation is easily destroyed. There is a risk. On the other hand, if the block-shaped foundation is made of reinforced concrete, the destruction of the block-shaped foundation is suppressed, but there is a problem that the manufacturing cost of the block-shaped foundation is increased. In addition, since the block-shaped foundation is heavy, when it is installed on the roof of a building, a large burden is placed on the roof, and a heavy machine for carrying the block-shaped foundation is required at the time of construction.

  Furthermore, in the thing of patent document 3, the channel | path for pouring in an adhesive agent is beforehand formed in the inside of a block main body, and the adhesive injection space must be formed also in the plate-shaped member fixed to the bottom face of a block main body. In addition, it is very time-consuming and the concrete block main body is bare concrete. Therefore, as in Patent Document 2, when the load in the pulling direction is applied to the anchor bolt, the block main body itself There is a problem that breakage easily occurs.

  The present invention has been made in view of the above problems, and an object thereof is to provide a foundation structure for installing outdoor equipment that is inexpensive and easy to handle.

  In order to achieve the above-described object, the foundation structure for outdoor equipment installation according to the present invention is an outdoor equipment that serves as a basis for installing outdoor equipment such as a solar cell panel at a place where a new or existing concrete structure is installed. A basic structure for installation, which is a short cylindrical frame member disposed at the installation location where the concrete is exposed, a mortar filled inside the frame member, and the frame member embedded in the mortar. A metal reinforcing member disposed inside, and a bolt that is fixed in a standing state at a central portion of the reinforcing member, and a tip portion that is connected to the outdoor equipment is exposed to the outside from the mortar, and It is characterized by fixing by the adhesive force of the said mortar (Claim 1).

  According to such a configuration, the frame member and the reinforcing member with the bolt can be fixed to the underlying concrete by the adhesive force of the mortar filled in the frame member disposed at a predetermined installation location. . At this time, when outdoor equipment is attached to the bolt, even if a tensile force is applied to the bolt, the mortar hardens in a state where it adheres to the inner wall of the frame member. Since the mortar can be reinforced from the outer peripheral side to prevent cracking of the mortar, and the reinforcing member inside the mortar can disperse the tensile load on the bolt and prevent concentration of the load. Destruction can be effectively prevented from the inside.

  Further, in the foundation structure for outdoor equipment installation of the present invention, the frame is installed at the installation location where the installation portion of the frame member is peeled and the concrete is exposed in the waterproof layer provided in the concrete structure. The member may be disposed (claim 2).

  According to such a configuration, among the waterproof layers provided in the concrete structure, it is only necessary to peel off the waterproof layer of the portion where the frame member is installed, and thus there is a risk of causing water leakage due to unnecessary peeling of the waterproof layer. There is no. Moreover, since it fixes with the adhesive force of a mortar, there is no hole for anchors like the case of planting the conventional anchor bolt, and the problem of water leakage can be solved.

  In addition, in the basic structure for installing outdoor equipment of the present invention, it is desirable that the frame member has a square shape with an inner dimension of 7 cm or more on a side and a metal square cylinder shape having a height of 5 cm or more. 3) The frame member may be a metal cylinder having an inner dimension of a circle with a diameter of 8 cm or more and a height of 5 cm or more (Claim 4).

According to such a configuration, for example, in order to install a solar panel of a photovoltaic power generation system which is an outdoor facility, it is said that it is necessary to withstand a tensile load in a pulling direction of about 2000 to 5000 N as a basic structure. If the frame member is a square with an inner dimension of 7 cm on a side, or a circle with a diameter of 8 cm or more and a square cylinder or cylinder with a height of 5 cm or more, the contact area between the underlying concrete and the mortar inside the frame member 49 cm ² or more can be secured, and it can be experimentally withstood a tensile force of 5000 N or more, which is suitable for installation of a solar power generation system.

  In the foundation structure for outdoor equipment installation according to the present invention, the reinforcing member is preferably formed by assembling reinforcing bars in a cross shape (Claim 5), and the shape is slightly smaller than the inner dimension of the frame member. The plate material may be provided with a plurality of through holes (Claim 6).

  According to such a configuration, the load applied to the mortar via the bolt to which the outdoor equipment is attached can be dispersed by the cross-shaped reinforcing member or the plate-shaped reinforcing member, and the cracking of the mortar is more effectively performed. Can be prevented. In addition, when a reinforcement member is plate shape, since the mortar goes around to every corner inside a frame member through several through-holes, sufficient adhesive force by a mortar is securable.

  In addition, the basic structure for outdoor equipment installation according to the present invention includes an upper collar part at the upper end of the outer periphery of the frame member, and a lid member that is joined in contact with the upper collar part and closes the upper surface of the frame member. (Claim 7).

  According to such a configuration, since the ingress of rainwater into the inside of the frame member can be suppressed by the lid member, deterioration of the bonded portion between the mortar and the reinforcing member can be suppressed, and the mortar cannot be seen from the outside. Therefore, the appearance can be finished beautifully.

  Moreover, as for the foundation structure for outdoor installation of this invention, the said reinforcement member may adhere to the inner periphery of the said frame member previously (Claim 8).

  According to such a configuration, if the reinforcing member is welded to the frame member, the burden during transportation of the frame member and the like is reduced, and handling becomes easy, and the reinforcing member with a bolt is integrated at the installation site. It is only necessary to bring the frame member and the mortar into an improved shape, and work efficiency can be improved.

  Moreover, a lower collar part may be further provided at the outer peripheral lower end of the frame member, and the collar part may be disposed in contact with a peripheral edge part of the peeling portion of the waterproof layer. By so doing, the peeled portion of the waterproof layer is covered by the lower collar portion, so that the intrusion of rainwater into the peeled portion of the waterproof layer can be suppressed and the appearance can be finished beautifully.

  Therefore, according to the present invention, when the mortar is filled in the frame member arranged at a predetermined installation location, even when a tensile force is applied to the bolt when the outdoor equipment is attached to the bolt, the mortar Is hardened in a state where it is adhered to the inner wall of the frame member, and as a result, the frame member holds the mortar in a tightened state from the outer peripheral side, so that the mortar can be reinforced from the outer peripheral side to prevent cracking of the mortar. Because the reinforcing member inside the mortar can distribute the tensile load on the bolt and prevent the concentration of the load, destruction of the mortar can be effectively prevented from the inside, and a foundation that can firmly support outdoor equipment is obtained As before, anchor bolts do not need to be planted in the underlying concrete, are inexpensive and easy to handle, and have sufficient tensile strength It is possible to provide a suitable foundation has for installation outdoors facilities.

It is a perspective view which shows one Embodiment of the basic structure for the outdoor installation installation concerning this invention. It is a one part perspective view of FIG. It is a perspective view of the other part of FIG. It is a top view of the state which has arrange | positioned the reinforcement member in the frame member of FIG. It is a front view of the state which has arrange | positioned the reinforcement member in the frame member of FIG. It is a perspective view of a lid member. It is sectional drawing of the concrete structure which shows the state in the middle of construction. It is a perspective view explaining a construction procedure.

  An embodiment of the present invention will be described with reference to FIGS. 1 is a perspective view of an embodiment of a foundation according to the present invention, FIG. 2 is a perspective view of a frame member, FIG. 3 is a perspective view of a reinforcing member to which a bolt is fixed, and FIGS. 4 and 5 are fixed bolts. FIG. 6 is a perspective view of the lid member in a state in which the reinforcing member is disposed inside the frame member.

  As shown in FIGS. 1 to 5, the base 1 includes a base portion 2a having a square cylindrical shape, and an upper collar portion 2b and a lower collar portion integrally attached to the upper end and the lower end of the base portion 2a by welding or the like, respectively. A frame member 2 made of 2c, a mortar 3 filled in the frame member 2, and a mortar formed along a diagonal line in the cross section of the base 2a before the mortar 3 is formed by assembling reinforcing bars in a cross shape 3 is provided with a reinforcing member 4 which is embedded by being pushed into the bottom of the frame 3, and a bolt 5 which is longer than the height of the frame member 2 fixed to the central portion of the reinforcing member 4 by welding or the like.

  Here, the base 2a of the frame member 2 is formed by bending a metal plate having a width of 5 cm and a thickness of about 2 mm, and is formed in a square cylinder shape having a square cross section of 15 cm on a side and a height of 5 cm.

  Further, as shown in FIG. 6, a metal lid member 7 having a square shape with the same size as the upper collar portion 2 b is disposed on the upper collar portion 2 b of the frame member 2 so as to contact the frame member 2. The upper surface is closed. Insertion holes 7a through which the bolts 5 are inserted are formed in the center of the lid member 7, and four insertion holes 7b for connecting and fixing the bolts to the upper flange 2b are formed through the four corners. On the other hand, insertion holes 2d for connecting and fixing bolts are provided at positions facing the four insertion holes 7b of the lid member of the upper collar 2b, and the bolts 5 exposed above the mortar 3 are located at the center of the lid member 7. The insertion holes 7a are inserted into the insertion holes 7a so that the lid member 7 is brought into contact with the upper collar portion 2b and the four insertion holes 7b and 2d of the lid member 7 and the upper collar portion 2b are aligned. Connection fixing bolts are inserted into 7b and 2d and tightened with nuts, the lid member 7 is connected and fixed to the upper collar 2b, and the upper surface of the frame member 2 is covered with the lid member 7.

  The foundation 1 having the above-described configuration is brought into the installation site by the frame member 2, the reinforcing member 4 to which the bolts 5 are fixed, the mortar 3 and the like, and is installed at a predetermined installation location by the following work procedure. .

  That is, as shown in FIG. 7, among the waterproof layers 11 provided on the upper surface of the concrete structure 10 at the installation location set in advance on the roof of the concrete structure 10 such as the target building as the installation site. The square portion 11a, which is slightly larger than the outer dimension of the lower flange portion 2c of the frame member 2, is peeled off to expose the underlying concrete, and the lower flange portion 2c is peeled away so that the frame member 2 is accommodated in the peeled portion 11a. The frame member 2 is arranged so as to be placed on the underlying concrete exposed in 11a. The peeling portion 11a of the waterproof layer 11 may be smaller than the outer dimension of the lower flange portion 2b and the same size as the square of the cross section of the base portion 2a. In this case, the lower flange portion 2b is waterproof around the periphery of the peeling portion 11a. It will be in the state mounted in the layer 11. FIG.

  Then, the inside of the frame member 2 is filled with the mortar 3, and before the mortar 3 is hardened, the reinforcing member 4 to which the bolt 5 is fixed is pushed into the bottom of the mortar 3 and buried, and one week until the mortar 3 is hardened. Let it cure. In this way, as shown in FIG. 8, the frame member 2 is installed at a plurality of installation locations and filled with the mortar 3. Thereafter, the lid member 7 is attached to each frame member 2, and each frame member 2. The top surface of the base is closed, and a base such as a rail for mounting outdoor equipment such as a solar power generation system is fastened to the bolt 5 of each foundation 1, and the outdoor equipment is fixed to the base and the installation is completed. Note that a sealing material for waterproofing may be buried in the gap between the peeled portion 11a of the waterproof layer 11 and the lower flange portion 2c of the frame member 2.

  By the way, since the peeling part 11a of the waterproof layer 11 and the lower flange part 2c of the frame member 2 are substantially the same square, when the mortar 3 is poured into the frame member 2 and filled, it is exposed to the peeling part 11a. The underlying concrete surface is in contact with the filled mortar 3 without a gap, and then the reinforcing member 4 is pushed in before the mortar 3 is cured, so that the inner wall of the frame member 2 and the mortar 3 are stirred by the mortar 3. And the mortar 3 wraps around the reinforcing member 4 and the bolt 5 so that the reinforcing member 4 and the mortar 3 are in contact with each other without any gap. As a result, a sufficient bonding area of the mortar 3 can be secured. A large adhesive force can be obtained by the cured mortar 3.

  Further, if the mortar 3 is cured, even if an outdoor facility is attached to the bolt 5 and a tensile force is applied to the bolt 5, the mortar 3 is cured while adhered to the inner wall of the frame member 2. As a result, the frame member 2 holds the mortar 3 in a tightened state from the outer peripheral side, and the mortar 3 can be reinforced from the outer peripheral side to prevent cracking of the mortar 3. It is possible to prevent the concentration of the load by dispersing the tensile load against the.

  At this time, when installing, for example, a solar power generation system including a solar battery panel as an outdoor facility, it is required to withstand a load of approximately 2000 to 5000 N as a pushing force and a pulling force for one foundation 1. However, by adhering the mortar 3 to the underlying concrete surface with the same size as the 15 cm × 15 cm cross-sectional square of the base 2 a of the frame member 2, it is possible to obtain an adhesive force of the mortar 3 that can withstand a load more than required. .

  When a tensile test was performed to determine how much strength the foundation 1 having the above configuration actually has, the results shown in Tables 1 and 2 were obtained. Here, Table 1 shows the characteristics of the specimens to be tested, and the test results are shown in Table 2. The specimens in Tables 1 and 2 are the frame member 2 consisting of only the base 2a without the upper and lower flanges, and only the square outer dimensions of the base 2a are different (the height is the same). N, M, and Z are each subjected to a tensile test by a tensile tester, and the mortar 3 is filled in the frame member 2 constituting each specimen, and the bolt is set before the mortar 3 is cured. The test was performed after the reinforcing member 4 to which 5 was fixed was buried and after a curing period of about one week.

  As apparent from Table 2 above, in the specimens M1, M2, and Z1 to 3 in which one side of the square of the frame member 2 is 7.5 cm (7.0 cm in internal dimensions) or more, the tensile strength is 5000 N or more, and the outdoor It can withstand a tensile load in the pulling direction of 2000 to 5000 N required when the facility is a photovoltaic power generation system. Although the specimen M3 was broken at 4500 N, it seems that the adhesive force was insufficient because the specimen was accidentally moved during curing. In addition, when the second tensile test was performed on the specimens M1 and M2 for the first time, the specimens were broken (broken) at 4200N and 4600N, respectively. It was judged to have strength against tensile load (2000-5000 N).

  Therefore, according to the above-described embodiment, when the mortar 3 is filled into the frame member 2 disposed at a predetermined installation location, the outdoor equipment is attached to the bolt 5 fixed to the reinforcing member 4 embedded in the mortar 3. Even when a tensile force is applied to the bolt 5, the mortar 3 is cured while adhered to the inner wall of the frame member 2, and as a result, the frame member 2 tightens the mortar 3 from the outer peripheral side. The mortar 3 can be reinforced from the outer peripheral side to prevent cracking of the mortar 3, and the reinforcing member 4 inside the mortar 3 can distribute the tensile load on the bolt 5 to prevent concentration of the load. Breakage can be effectively prevented from the inside, and a foundation 1 that can firmly support outdoor equipment can be obtained. It is not necessary to implanted in over preparative, easily handled in inexpensive, it is possible to provide a suitable substructure for the installation of outdoor equipment has sufficient tensile strength.

  Moreover, in the waterproof layer 11 provided in the concrete structure 10, it is only necessary to peel off the waterproof layer 11 at a portion where the frame member 2 is installed, so that the waterproof layer 11 is peeled off wastefully into the concrete structure. There is no possibility of incurring water leakage, and concrete deterioration can be suppressed.

Further, if the frame member 2 is a square having an internal size and a side of 7 cm, a contact area of 49 cm ² or more can be secured as the contact area between the underlying concrete and the mortar 3 inside the frame member 2, and experimentally withstand a tensile force of 5000 N or more. It can be seen that, for example, the strength against a tensile load of 2000 to 5000 N required when installing a solar panel of a solar power generation system that is an outdoor facility can be ensured, which is very suitable for installation of a solar power generation system. Foundation 1 can be provided.

  Moreover, since the infiltration of rainwater into the inside of the frame member 2 can be suppressed by the lid member 7, the deterioration of the mortar 3 can be suppressed and the mortar 3 cannot be seen from the outside, so that the foundation 1 having a beautiful appearance is finished. be able to.

  The present invention is not limited to the above-described embodiment, and various modifications other than those described above can be made without departing from the spirit of the present invention.

  For example, in the above-described embodiment, the frame member 2 including the upper and lower flange portions 2b and 2c has been described. However, the frame member 2 may be configured not to include the flange portions 2b and 2c.

  Further, the base 2a of the frame member 2 is not limited to the one in which the above-described metal plate having a width of 5 cm and a thickness of about 2 mm is bent, and the cross section with a side of 15 cm is square and the height is 5 cm. First, a metal plate having a width of 5 cm and a thickness of about 2 mm is bent, and a cross section with a side of 7.5 cm or a side of 10 cm is a square and a square with a height of 5 cm, or a cross section with a diameter of 8 cm or more is circular. It may be formed in a cylindrical shape having a height of 5 cm. In short, in the case of a square tube shape, the inner dimension may be a square having a side of 7 cm or more.

  Further, instead of the reinforcing member 4 in which the reinforcing bars are assembled in a cross shape, the reinforcing member is composed of a square plate material slightly smaller than the inner dimension of the frame member 2 and the base 2a of the frame member 2 is cylindrical. Are made of circular plate materials that are slightly smaller than the inner dimensions of the frame member 2, and a plurality of through holes for facilitating the wrapping of the mortar 3 are perforated in these plate materials. May be.

  Further, the reinforcing member 4 may be fixed to the inner periphery of the frame member 2 in advance, so that the burden during transportation of the frame member 2 and the like can be reduced, and the handling becomes much simpler and the installation can be facilitated. It is only necessary to bring the frame member 2 and the mortar 3 in which the reinforcing member 4 with the bolt 5 is integrated into the site, so that the work efficiency can be improved.

  Further, the base 2a of the frame member 2 is not limited to a square or circular cross section, and the cross section may be a triangle, a pentagon or more polygon, or an ellipse. Any shape that can secure a contact area with the concrete to obtain a force may be used. Further, the height of the frame member 2 may be set to a height at which a necessary adhesive force can be obtained.

  In the above-described embodiment, an example in which the outdoor facility is a solar power generation system has been described. However, the foundation according to the present invention can be applied to the case where the outdoor facility is installed in a concrete structure on the ground. For example, the basis for installing street lamps on the sidewalk can be cited.

DESCRIPTION OF SYMBOLS 1 ... Foundation 2 ... Frame member 3 ... Mortar 4 ... Reinforcement member 5 ... Bolt 10 ... Concrete structure 11 ... Waterproofing layer 11a ... Peeling part

Claims (8)

It is a foundation structure for outdoor equipment installation that will be the basis for installing outdoor equipment such as solar panels at the installation location of new or existing concrete structures,
A short cylindrical frame member arranged at the installation location where the concrete is exposed;
Mortar filled inside the frame member;
A metal reinforcing member embedded in the mortar and disposed inside the frame member;
A bolt that is fixed in a standing state at the center of the reinforcing member and that is arranged such that a tip portion for connection with the outdoor equipment is exposed to the outside from the mortar,
A base structure for outdoor equipment installation, characterized by being fixed by the adhesive force of the mortar.   2. The frame member is disposed at the installation location of the waterproof layer provided in the concrete structure in a state where the installation portion of the frame member is peeled and the concrete is exposed. Basic structure for outdoor equipment installation described in 1.   The foundation structure for outdoor equipment installation according to claim 1 or 2, wherein the frame member has a square shape with an internal dimension of 7 cm or more on a side and a height of 5 cm or more. .   The foundation structure for outdoor equipment installation according to claim 1 or 2, wherein the frame member is a metal cylinder having an inner dimension of a circle having a diameter of 8 cm or more and a height of 5 cm or more. .   The foundation structure for outdoor equipment installation according to any one of claims 1 to 4, wherein the reinforcing member is formed by assembling reinforcing bars in a cross shape.   The said reinforcing member consists of a board | plate material of a shape a little smaller than the internal dimension of the said frame member, The several through-hole is penetrated by this board | plate material, The one of Claim 1 thru | or 4 characterized by the above-mentioned. Basic structure for outdoor equipment installation.   7. The apparatus according to claim 1, further comprising: an upper collar part at an upper end of the outer periphery of the frame member; and a lid member that is joined in contact with the upper collar part and closes the upper surface of the frame member. Basic structure for outdoor equipment installation as described in any one of the above. The foundation structure for outdoor equipment installation according to any one of claims 1 to 7, wherein the reinforcing member is fixed to the inner periphery of the frame member in advance.

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