JP2007040103A - Base concrete reinforcing metal fitting in underfloor work - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To reinforce a passage place after underfloor work performed by forming a passage for a worker, piping and wiring by breaking down a part of base concrete. <P>SOLUTION: The reinforcing metal fitting 11 is provided with a first butting part 13 which abuts on left and right places of the passage 7 formed in the base concrete 3 below the outside of a second butting part 17 which abuts on a base 5. The reinforcing metal fitting 11 is arranged to avoid and bypass the passage 7 when the second butting part 17 abuts on the base 5 and the first butting part 13 abuts on the left and right places of the passage 7 in the base concrete 3. The second butting part 17 is provided with second inserting holes 20, 21 of second fixtures 18, 19 inserted into the base 5, and the first butting part 13 is provided with a first inserting hole 15 of a first fixture 14 inserted into the base concrete 3. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a foundation concrete reinforcing bracket in underfloor construction.

  Conventionally, a wooden building has a foundation placed on the foundation concrete, and a pillar is erected on the foundation.

  In such under-floor construction of wooden buildings, for example, white ant extermination work in existing wooden buildings, gas and water pipe construction, electrical wiring construction, etc., the places surrounded by the foundation concrete are moved, or through these places Various construction works such as piping and wiring. In this way, the foundation concrete gets in the way when moving, piping, and wiring, so the foundation concrete can be broken by using a drill, etc., and a size that allows people to go in and out, as well as piping and wiring The passage is formed.

JP-A-10-25832

  During or after the underfloor work, it is necessary to restore the damaged part that has been reduced in strength, but because it is a restoration work in a narrow part under the floor, concrete work such as filling the damaged part with concrete There is a problem that it is difficult to do.

  As a means for solving such a problem, for example, it is conceivable to reinforce the foundation concrete by connecting left and right portions of the damaged passage in the foundation concrete with reinforcing metal fittings during or after the underfloor construction. .

  However, in such a reinforcing method, originally, in the foundation of a wooden building, strength can be ensured by fixing the foundation concrete and the foundation, and the left and right portions of the passage are provided by reinforcing metal fittings. In what is connected, since the foundation is not connected, there is a problem that the reinforcing strength is inferior.

  Therefore, the present invention provides a foundation concrete for underfloor construction that reinforces the passage location after the underfloor construction is performed by forming a passage for workers, piping, and wiring by damaging a part of the foundation concrete on which the foundation is placed. It aims at providing a reinforcement metal fitting.

  The gist of the present invention will be described with reference to the accompanying drawings.

  The invention of claim 1 is a reinforcing metal fitting 11 that reinforces the passage 7 in the underfloor work performed by damaging a part of the foundation concrete 3 on which the foundation 5 is placed to form the passage 7. The plate-like first abutting portion 13 that abuts the three basic concretes on the left and right sides of the passage 7 is provided below the outside of the plate-like second abutting portion 17 that abuts the base 5. When the second abutting portion 17 is brought into contact with the base 5 and the first abutting portion 13 is brought into contact with the left and right portions of the passage 7 in the foundation concrete 3, the reinforcing metal fitting 11 bypasses the passage 7 and detours. The second abutting portion 17 is provided with second insertion holes 20 and 21 for the second fixing tools 18 and 19 to be inserted into the base 5, and the second abutment portion 17 is provided with the second insertion holes 20 and 21. The second abutment portion 17 can be fixed to the base 5 by the fixtures 18 and 19 and fixed. A first insertion hole 15 of a first fixture 14 to be inserted into the foundation concrete 3 is provided in one abutment portion 13, and the first abutment portion 13 is inserted into the foundation concrete 3 by the first fixture 14. A foundation concrete reinforcing metal fitting for underfloor construction, characterized in that it can be fixed in contact with the left and right portions of a passage 7.

  According to the second aspect of the present invention, the passage in the underfloor construction is performed by forming a passage 7 having a size that allows a person to enter and exit or to pipe and wire by damaging a part of the foundation concrete 3 on which the base 5 is placed. 7, the reinforcing metal fittings 11 are provided at three locations on the left and right sides of the passage 7 in the diagonally lower side outside the plate-like second abutting portion 17 that abuts the base 5. The plate-like first abutting portion 13 that abuts against the base 5 is provided so that the second abutting portion 17 abuts on the base 5 and the first abutting portion 13 is located at the left and right locations of the passage 7 in the foundation concrete 3. 2. The foundation concrete reinforcing bracket for underfloor construction according to claim 1, wherein the reinforcing bracket 11 is arranged so as to bypass the passage 7 and bypass the passage 7 without narrowing the passage 7. It is.

  The invention of claim 3 is a reinforcing metal fitting 11 that reinforces the passage 7 in the underfloor construction performed by damaging a part of the foundation concrete 3 on which the base 5 is placed and forming the passage 7. A first abutting portion 13 is provided on both sides of the reinforcing metal body 12 for laying the passage 7 on the left and right sides and fixed to the foundation concrete 3 and fixed to the reinforcing metal body 12 by contacting the base 5. The second abutting portion 17 is provided, and the first abutting portion 13 is provided below both outer sides of the horizontally long reinforcing metal fitting body 12 provided with the second abutting portion 17. When the portion 13 is connected to the left and right portions of the passage 7 in the foundation concrete 3 and connected, and the second abutting portion 17 is fixed to the base 5, the reinforcing bracket body 12 avoids the passage 7. Configured to be arranged to bypass Is the basis of concrete reinforcement bracket in the floor construction which is characterized.

  The invention according to claim 4 is an inclined portion in which an inner corner portion of the reinforcing metal fitting body 12 and the first abutting portion 13 provided below both outer sides of the reinforcing metal fitting body 12 is narrowed upward. The foundation concrete reinforcing bracket for underfloor construction according to claim 3, wherein the foundation concrete reinforcing bracket is formed in 16.

  The invention of claim 5 is characterized in that a bead 22 is formed on the reinforcing metal fitting 11 and the bead 22 extends from the first abutting portion 13 to the second abutting portion 17. It is a basic concrete reinforcement metal fitting in the underfloor construction of any one of Claims 1-4.

  According to the first, second, and third aspects of the invention, the foundation and the left and right portions of the passage in the foundation concrete are connected by the reinforcing metal fitting. By being integrated, it is possible to prevent a decrease in strength at the location of the passage.

  Further, since the reinforcing metal fittings are arranged so as to bypass the passage, the passage is not significantly narrowed.

  According to the invention of claim 4, the first abutting portion is provided below both sides of the reinforcing metal fitting body, and the inclined portion is narrowed upward at the inner angle between the reinforcing metal fitting body and the first abutting portion. As a result, the local stress is unlikely to be generated at the inner corner, and the worker passing through the passage is not caught at the inner corner and can be used with confidence.

  Embodiments of the present invention that are considered suitable (how to carry out the invention) will be briefly described with reference to the drawings, illustrating the operation of the present invention.

  Preferred embodiments of the present invention will be described with reference to the accompanying drawings. The embodiments described below do not limit the contents of the present invention described in the claims. In addition, all the configurations described below are not necessarily essential requirements of the present invention.

  1 and 2 show Example 1, and a foundation 1 in a wooden building such as a house is constructed by projecting an upper part of a foundation concrete 3 having a lower part embedded in the ground 2 from the ground 2, and further A base 5 made of wood or the like is placed on the upper surface 4, and the base 5 is fixed by fixtures (not shown) such as bolts and nuts standing from the upper surface 4 of the foundation concrete 3.

  In the underfloor construction, a passage 7 is formed on the side surface 6 of the foundation concrete 3 using a drill or the like, and an operator works through the passage 7. The passage 7 is usually formed with the upper surface 4 side of the foundation concrete 3 as an opening 8 so that an operator can easily move, or is formed in a hole shape near the upper surface 4.

  The reinforcing metal fitting 11 that reinforces the passage 7 after completion of the work or in the middle of the work is formed of a flat plate material such as a rolled steel plate, and is a horizontally long reinforcing metal fitting body 12 that lays the passage 7 left and right. The first abutting portions 13 that are in contact with the side surfaces 6 of the foundation concrete 3 are provided on the outer sides of the two sides of the foundation concrete 3 in a plane, and the first abutting portions 13 are orthogonal to the first abutting portions 13. A first insertion hole 15 into which a first fixing tool 14 such as a bolt to be inserted into the foundation concrete 3 is inserted is provided. Further, the inner corner portion of the reinforcing bracket body 12 and the first abutting portion 13 provided obliquely below and outside the reinforcing bracket body 12 is not inclined but is tapered by a tapered portion or the like that narrows upward. Is formed. The inclined portion 16 may be formed by an arc portion that narrows upward. Further, on the left and right sides of the reinforcing metal fitting body 12, there are provided second abutting portions 17 that contact the side surface 9 of the base 5 in a planar shape, and a second abutting portion 17 is inserted into the base 5 in the second abutting portion 17. Second insertion holes 20 and 21 for the fixtures 18 and 19 are provided. The second abutting portion 17 is formed by the entire side surface of the reinforcing metal fitting body 12. The one second fixing tool 18 is a bolt, and this bolt is inserted and fixed to the base 5 through a bolt insertion hole forming one second insertion hole 20 provided on both sides of the reinforcing metal fitting body 12. It has come to be. The other second fixing tool 19 is a screw, and this screw is inserted into the base 5 through a screw insertion hole forming the other second insertion hole 21 provided on the center side of the reinforcing metal fitting body 12, It is supposed to be fixed.

  In the figure, reference numeral 22 denotes a bead formed in a convex shape on the reinforcing metal fitting, which is the opposite surface (front side in FIG. 1) of the first contact portion 13 and the opposite surface of the second contact portion 17. (A front side in FIG. 1), extending from the first abutting portion 13 to the vicinity of the center of the second abutting portion 17, and forming a pair of left and right via a flat intermediate portion 23 in which no bead 22 is formed Has been. Note that the bead 22 may be formed in a pair of left and right continuously without the intermediate portion 23.

  The upper end of the first insertion hole 15 is formed with a distance L of, for example, 30 mm or more, preferably 40 mm or more with respect to the extended line of the horizontally long lower edge 17L of the second abutting portion 17. Further, the lower ends of the second insertion holes 20 and 21 are formed such that the distances M and N are, for example, 10 mm or more with respect to the extension line of the horizontally long linear lower edge 17L of the second abutting portion 17.

  Next, the operation of the above configuration will be described. When reinforcing the passage 7, first, the reinforcing metal fitting body 12 is installed on the passage 7, and the first contact portion 13 is brought into contact with the side surface 6 of the foundation concrete 3, and the second contact portion 17 is attached to the base 5. It contacts the side surface 9. At this time, the reinforcing metal fitting 11 is arranged so that the lower edge 17L of the second contact portion 17 is substantially along the lower surface of the base 5, that is, the boundary between the base 5 and the foundation concrete 3. Then, the first fixture 14 is inserted into the foundation concrete 3 through the first insertion hole 15 to connect the reinforcing metal fitting 11 and the foundation concrete 3. Further, bolts and screws as the second one and other fixing tools 18 and 19 are inserted into the base 5 through the second one and the other insertion holes 20 and 21 to connect the reinforcing metal fitting 11 and the base 5. . As a result, the base 5 is integrally connected to the foundation concrete 3 through the reinforcing metal fitting 11.

  As described above, in the embodiment, the left and right portions of the passage 7 in the foundation concrete 3 are connected by the reinforcing metal fittings 11 during and after the underfloor construction, and the reinforcing metal fittings 11 connect the base 5. Thus, the left and right portions of the passage 7 in the foundation concrete 3 can be connected by the reinforcing metal fitting 11, and the base 5 can be connected by the reinforcing metal fitting 11 to prevent a decrease in strength at the passage 7 location.

  Furthermore, a first abutting portion 13 that abuts the side surface 6 of the foundation concrete 3 is provided on both sides of the reinforcing metal fitting body 12 that lays the passage 7 on the left and right, and the foundation concrete 3 is attached to the first abutting portion 13. A first insertion hole 15 of the first fixing tool 14 to be inserted is provided, a second abutting portion 17 abutting on the side surface 9 of the base 5 is provided in the reinforcing metal fitting body 12, and the second abutting portion 17 is provided. Provided with the second insertion holes 20 and 21 of the second fixtures 18 and 19 to be inserted into the base 5, the first fixture 14 is connected to the foundation concrete 3 through the first insertion hole 15. While inserting and fixing, the 2nd fixing tools 18 and 19 are inserted in the base 5 through the 2nd insertion holes 20 and 21, and the foundation concrete 3 and the base 5 are integrated by the reinforcing metal fitting 11, and the passage It is possible to prevent a decrease in strength at the point 7.

  Further, the first abutting portion 13 is provided on the outer side obliquely downward on both sides of the horizontally long reinforcing metal fitting body 12 provided with the second abutting portion 17 and the second insertion holes 20 and 21. The main body 12 is arranged so as to bypass the passage 7 so that the passage 7 is not significantly narrowed.

  Further, the first abutting portion 13 is provided below both sides of the reinforcing metal fitting body 12 and an inclined portion 16 is formed at the inner corner of the reinforcing metal fitting body 12 and the first abutting portion 13 so as to be narrowed upward. As a result, local stress is unlikely to occur at the inner corner, and workers passing through the passage 7 are not caught at the inner corner and can be used with confidence.

  In addition, the center position of the first insertion hole 15 is formed such that the horizontally long lower edge 17L of the second abutting portion 17, that is, the lower side distance L of the upper surface 4 is 30 mm or more, preferably 40 mm or more. The strength reduction of the concrete 3 can be prevented. In addition, the lower ends of the second insertion holes 20 and 21 are formed such that the distances M and N are, for example, 10 mm or more with respect to the extended line of the horizontally long lower edge 17L of the second abutting portion 17. The connection strength between the reinforcing metal body 12 and the reinforcing metal body 12 can be ensured.

  3 and 4 show the second embodiment, and the same parts as those in the first embodiment are denoted by the same reference numerals, and detailed description thereof is omitted. In the second embodiment, a first abutting portion 13 ′ is provided below both sides of the horizontally long reinforcing metal fitting 12. The inclined portion 16 is formed so that the inner angle between the reinforcing metal fitting body 12 and the second abutting portion 17 is gradually narrowed upward.

  Therefore, when reinforcing the passage 7, the reinforcing metal fitting body 12 is first installed on the passage 7, and the first abutting portion 13 ′ is brought into contact with the side surface 6 of the foundation concrete 3, and the second abutting portion 17 is provided. It contacts the side surface 9 of the base 5. Further, the bolts and screws as the second one and the other fixing tools 18 and 19 are inserted and fixed to the base 5 through the second one and the other insertion holes 20 and 21 to fix the reinforcing bracket 11 and the base 5. Link.

  As mentioned above, in the said embodiment, while connecting the right and left location of the said channel | path 7 in the foundation concrete 3 with the reinforcement metal fitting 11, and connecting the said base 5 with this reinforcement metal fitting 11, the strength in the location of the channel | path 7 is obtained. In addition to preventing the lowering, etc., the first abutting portion 13 'is provided below both sides of the horizontally long reinforcing metal body 12 provided with the second abutting portion 17 and the second insertion holes 20, 21. The reinforcing metal fitting body 12 is disposed so as to bypass the passage 7 so that the passage 7 is not significantly narrowed.

  FIG. 5 shows a third embodiment, and the same parts as those in the first embodiment are denoted by the same reference numerals, and detailed description thereof is omitted. As shown in FIG. 5, in the third embodiment, an extension abutment 24 is provided narrower than the first abutment 13 inside the first abutment 13, that is, below the inner corner, and the extension abutment 24 is passed through the passage. 7 can be arranged further along.

  Thus, the connection strength may be improved by providing the first abutting portion 13 with the extension abutting portion 24 arranged along the passage 7.

  6 and 7 show a fourth embodiment, and the same parts as those in the first embodiment are denoted by the same reference numerals, and detailed description thereof is omitted. The reinforcing bracket 11A for reinforcing the passage 7 after the work is completed or in the middle of the work is formed by a flat plate material such as a rolled steel plate, and includes a horizontally long reinforcing metal fitting body 12A for extending the passage 7 to the left and right. The first abutting portions 13A that are in contact with the side surfaces 6 of the foundation concrete 3 in a plane shape are provided separately on the outer sides of the both sides. The first abutting portion 13A is provided with a first insertion hole 15 into which a first fixing tool 14 such as a bolt to be inserted into the foundation concrete 3 is inserted perpendicularly to the first abutting portion 13A. Further, the inner corner portion of the reinforcing bracket main body 12A and the first abutting portion 13A provided obliquely outwardly from the reinforcing bracket main body 12A is not a right angle but a tapered portion or the like that is narrowed upward. Is formed. Further, a second abutting portion 17A that comes into contact with the side surface 9 of the base 5 is provided on both the left and right sides of the reinforcing metal fitting body 12A, and a second abutting portion 17A is inserted into the base 5 into the second abutting portion 17A. A second insertion hole 20 of the fixture 18 is provided. The second fixture 18 is formed by a shaft-like body such as a bolt. The second abutting portion 17A is formed by the entire side surface of the reinforcing metal fitting body 12A. The one second fixing tool 18 is inserted and fixed to the base 5 through one second insertion hole 20 provided on both sides of the reinforcing metal fitting body 12A.

  A connection hole 31 is formed in the upper part of the second abutting portion 17A so as to face the second insertion hole 20. And the connection hole 31 is provided in the extension part 32 formed toward the reinforcement metal fittings main body 12A side in the upper part of the 1st contact part 13A. Further, the upper portion of the first abutting portion 13A and the reinforcing metal fitting body 12A are brought into contact with the side surface 9 of the base 5 so that the second insertion hole 20 and the coupling hole 31 are coaxial. The end portion of the reinforcing metal fitting body 12A overlaps, the extension portion 32 of the first abutting portion 13A overlaps with the end portion side of the reinforcing metal fitting body 12A, and an overlapping portion is formed from the outside of the overlapping portion. A second fixing tool 18 is screwed and fixed to the side surface 9 through the connecting hole 31 and the second insertion hole 20 from the outside. As a result, the base 5 is integrally connected to the foundation concrete 3 via the reinforcing metal fitting 11A.

  As described above, in the above-described embodiment, the reinforcing metal fitting 11A is formed by connecting and integrating three parts such as the reinforcing metal fitting body 12A and the pair of first abutting portions 13A. Work and installation work can be easily performed. In addition, the left and right portions of the passage 7 in the foundation concrete 3 are connected by reinforcing metal fittings 11A during and after the underfloor construction, and the reinforcing metal fittings 11A are connected to the base 5 and thereby the basic concrete is formed by the reinforcing metal fittings 11A. 3 can be connected to the left and right locations of the passage 7, and the base 5 can be connected by the reinforcing metal fittings 11 </ b> A to prevent a decrease in strength at the location of the passage 7.

  Further, the reinforcing metal fitting 11A can be carried in by reducing the parts to be carried under the floor by forming the reinforcing metal fitting body 12A and the first contact part 13A separately and connecting them together. The connecting work can be easily performed. Further, the connecting means between the reinforcing metal fitting body 12A and the first abutting portion 13A is the second fixing of the shaft-like body such as a bolt inserted into the overlapping portion of the reinforcing metal fitting body 12A and the first abutting portion 13A. Since it is the tool 18, the reinforcing metal fitting body 12A and the first abutting portion 13A can be easily fixed. In addition, the number of parts can be reduced by fixing to the base 5 with the second fixture 18 made of the shaft-like body, and further connecting and fixing the reinforcing metal fitting body 12A and the first abutting portion 13A.

  8 and 9 show a fifth embodiment, and the same parts as those in the first and fourth embodiments are denoted by the same reference numerals, and detailed description thereof is omitted. In the fifth embodiment, a connection hole 31 is formed so as to face the second insertion hole 20 almost directly above the first abutting portion 13B. Further, the upper portion of the first abutting portion 13B and the reinforcing metal fitting body 12B are brought into contact with the side surface 9 of the base 5 so that the second insertion hole 20 and the coupling hole 31 are coaxial. The end of the reinforcing bracket body 12B overlaps, the upper end of the first abutting portion 13B overlaps the end of the reinforcing bracket body 12B, and the second fixture 18 is connected to the connection hole 31 and the second insertion hole. The base 5 is integrally connected to the foundation concrete 3 via the reinforcing metal fittings 11B.

  As described above, in the above-described embodiment, the reinforcing bracket 11B is formed by connecting and integrating three parts like the reinforcing bracket body 12B and the pair of first abutting portions 13B. Work and installation work can be easily performed. Moreover, while connecting the right and left location of the said channel | path 7 in the foundation concrete 3 with the reinforcement metal fitting 11B, the said base 5 can be connected with this reinforcement metal fitting 11B, and the fall of the intensity | strength in the location of the channel | path 7 can be prevented, Reinforcing bracket 11B is formed by forming the reinforcing bracket body 12B and the first abutting portion 13B separately, and by connecting them together, it is possible to reduce the parts to be carried under the floor and bring them in Can be easily performed.

  10 and 11 show a sixth embodiment. The same parts as those in the first and fourth embodiments are denoted by the same reference numerals, and detailed description thereof is omitted. In the sixth embodiment, a connection hole 31 is formed so as to face the second insertion hole 20 almost directly above the first abutting portion 13C, and the first insertion holes 15 are formed on the left and right sides of the lower part. Are provided. Further, the upper portion of the first abutting portion 13C and the reinforcing metal fitting body 12C are brought into contact with the side surface 9 of the base 5 so that the second insertion hole 20 and the coupling hole 31 are coaxial, and the side surface 9 The end portion side of the reinforcing metal fitting body 12C overlaps, the upper end of the first abutting portion 13C overlaps the end portion side of the reinforcing metal fitting body 12C, and the second fixture 18 is connected to the connection hole 31 and the second insertion hole. The base 5 is integrally connected to the foundation concrete 3 through the reinforcing metal fittings 11C.

  As described above, in the embodiment, the left and right portions of the passage 7 in the foundation concrete 3 are connected by the reinforcing metal fitting 11C, and the foundation 5 is connected by the reinforcing metal fitting 11C, so that the strength at the passage 7 is increased. It is possible to prevent the lowering, and the reinforcing bracket 11C is a component to be carried under the floor by forming the reinforcing bracket body 12C and the first abutting portion 13C separately and connecting them together. Can be brought in with a small size, and it is possible to easily perform the connecting work.

  As described above, the foundation concrete reinforcing bracket in the underfloor construction according to the present invention can be applied to various uses in addition to wooden buildings such as houses.

It is a front view which shows Example 1 of this invention. It is a top view which shows Example 1 of this invention. It is a front view which shows Example 2 of this invention. It is a top view which shows Example 2 of this invention. It is a front view which shows Example 3 of this invention. It is a disassembled front view which shows Example 4 of this invention. It is a front view which shows Example 4 of this invention. It is a disassembled front view which shows Example 5 of this invention. It is a front view which shows Example 5 of this invention. It is a disassembled front view which shows Example 6 of this invention. It is a front view which shows Example 6 of this invention.

Explanation of symbols

3 foundation concrete 5 foundation 7 passage
11 Reinforcing bracket
12 Reinforcing bracket body
13 First pad
14 First fixture
15 First insertion hole
16 Inclined part
17 Second pad
18, 19 Second fixture
20, 21 Second insertion hole
22 Bead

Claims (5)

  A reinforcing bracket that reinforces the passage in the underfloor work performed by forming a passage by damaging a part of the foundation concrete on which the foundation is placed, and the reinforcing bracket is a plate-like second abutment that contacts the foundation. A plate-like first abutting portion that abuts the left and right foundation concrete portions of the passage is provided below the outside of the portion, and the second abutting portion abuts on the base, and the first abutting portion Is configured to be arranged so as to bypass the passage to avoid the passage, and the second abutment portion is inserted into the base. A second insertion hole of the fixture is provided, and the second fixture is configured so that the second contact portion can be fixed in contact with the base, and the foundation concrete is attached to the first contact portion. 1st insertion hole of the 1st fixing tool to insert Provided, foundation concrete reinforcing brackets in underfloor construction, characterized by being configured so as to fix in contact with the left and right portions of the passageway in the foundation concrete the first contacting portion by the first fastener.   Reinforcing metal fittings for reinforcing the passage in underfloor construction performed by forming a passage of a size that allows people to enter and exit, piping and wiring by damaging a part of the foundation concrete on which the foundation is placed, The reinforcing metal fitting has a plate-like first abutting portion that abuts against the left and right foundation concrete portions of the passage, obliquely below the outer side of the plate-like second abutting portion that abuts on the base, When the second abutting part is brought into contact with the base and the first abutting part is brought into contact with the left and right portions of the passage in the basic concrete, the reinforcing metal fitting avoids the passage and bypasses the passage. The foundation concrete reinforcing bracket for underfloor construction according to claim 1, wherein the foundation concrete reinforcing bracket is configured to be arranged.   A reinforcing bracket that reinforces the passage in the underfloor work performed by forming a passage by damaging a part of the foundation concrete on which the foundation is placed, and the reinforcing bracket is provided on both sides of the reinforcing bracket body that lays the passage left and right. A first abutting portion that contacts and fixes the foundation concrete is provided, and a second abutting portion that abuts and fixes the base is provided on the reinforcing metal fitting body. As the configuration in which the first abutting portion is provided below both outer sides of the reinforcing metal fitting body, the first abutting portion is in contact with and connected to the left and right portions of the passage in the foundation concrete, and the second A foundation concrete reinforcing bracket for underfloor construction, wherein the reinforcing bracket main body is arranged so as to be detoured while avoiding a passage when the abutting portion is fixed in contact with the base.   The inner corner portion of the reinforcing metal fitting main body and the first abutting portion provided below both outer sides of the reinforcing metal fitting main body is formed as an inclined portion that becomes narrower upward. 3. Foundation concrete reinforcement bracket for underfloor construction described in 3.   The bead is formed on the reinforcing metal fitting, and the bead is configured to extend from the first contact portion to the second contact portion. Foundation concrete reinforcement brackets for underfloor construction in Japan.

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