JP2006046020A - Construction method of ground sill and metal member for receiving ground sill - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a metal member for receiving a ground sill which enables the ground sill to be lifted from the foundation in a state that the metal member is directly fixed onto the foundation, excels in construction efficiency and load bearing strength, and lowers the cost by reducing the number of parts. <P>SOLUTION: The metal member 1 for receiving the ground sill comprises a bottom plate 3 having a long opening 2, and supporting plates 5 provided at an upper part of the bottom plate 3 to hold the ground sill in a state that the ground sill is lifted from the foundation. The metal member 1 is placed directly on the foundation, and fixed to the foundation by tightening up a fastening bolt threadably fitted to a nut of an anchor bolt embedded in the foundation. Then, the ground sill is fitted onto the supporting plates 5 of the metal member 1. The metal member 1 and the ground sill are connected by a fastener in a squeezed state that the top end of the ground sill and the lower part of the metal member 1 are compressed. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  TECHNICAL FIELD The present invention relates to a foundation construction method for fixing a foundation to a foundation at the time of construction of a wooden building, and a foundation bracket used in this construction method.

  The conventional general construction method for fixing the foundation to the foundation is to embed the anchor bolt in the foundation so that the upper end protrudes a predetermined length at a predetermined interval, and correspond to each anchor bolt of the foundation to be fixed on this foundation At the position where the anchor bolt is inserted, the anchor bolt insertion hole is vertically penetrated, and this base is placed on the foundation by inserting each insertion hole into the anchor bolt, and a nut is attached to the anchor bolt from the top end side of the base. The foundation is fixed to the foundation by screwing and fastening via a washer.

  The construction method as described above needs to be provided in the base so that the insertion hole of the anchor bolt penetrates up and down, so that wood chips are generated for the insertion of the insertion hole, and it takes time and labor for work and cleaning. There is a problem that processing is expensive.

  In addition, by providing the insertion hole in the base, there is a problem that the cross-sectional area of the base itself is lost, the structural strength of the base is lost, and if the base is directly stacked on the foundation, the base is corroded.

  In order to solve such problems, there has already been proposed a method for constructing a foundation that can float the foundation from the foundation and can be fixed to the foundation without providing an anchor bolt insertion hole in the foundation.

  This construction method consists of a foundation side metal fitting embedded in the upper end of the foundation and a support metal fitting having a substantially U-shaped vertical section that receives and supports the lower part and side part of the foundation. On the other hand, the bottom of the support bracket is provided with an engaged portion that is detachably engaged with the engagement portion, and a base is fitted into the support bracket fixed on the foundation, and the support bracket and the base are attached to the nail. It is fixed by driving in (see Patent Document 1).

As another construction method, the packing is placed on the foundation, the head of the anchor bolt is inserted into the hole, and the U-shaped metal fitting is placed on the packing so that both sides thereof are along the longitudinal direction of the foundation. Insert the hole into the head of the anchor bolt, fix it with the nut screwed to the anchor bolt, and store the base between both sides of the bracket, and drive the nail through each nail hole A base is fixed to the metal fitting (see Patent Document 2).
JP 11-217835 A Japanese Patent Laid-Open No. 11-10091

  By the way, in the former construction method, since the foundation side metal fitting and the support metal fitting are coupled with the engaging portion made of a screw shaft or nut and the engaged portion, the foundation can be lifted from the foundation, but it takes time and effort for the coupling work. As a result, not only the construction efficiency is poor, but also the weight of the foundation is supported by the screw shaft on the foundation, so there is anxiety in the load support strength.

  In addition, the latter construction method requires a separate packing, and not only the number of parts increases, but also it is necessary to provide a through hole in the top and bottom of the wooden packing, so wood chips are generated for drilling the hole, Moreover, since the wooden packing is in direct contact with the foundation, there is also a problem that the packing is corroded.

  Therefore, the problem of the present invention is that the foundation can be lifted from the foundation in a state where the foundation bracket is directly fixed on the foundation, and it is excellent in construction efficiency and load supporting strength, and has a low number of parts and is inexpensive in terms of cost. It is to provide the construction method and the mounting bracket.

  In order to solve the above problems, the invention of claim 1 is provided with an anchor bolt embedded in the foundation, and a fitting portion for holding the base in a state of floating from the foundation on the upper portion of the bottom plate provided with the long hole. The base bracket is placed directly on the foundation so that the long hole corresponds to the anchor bolt, and the base bracket is fixed to the foundation by tightening the bolt screwed to the nut of the anchor bolt. A structure is adopted in which the base is fitted into the fitting portion, and the base bracket and the base are coupled by a fastener in a narrowed state where the top end of the base and the lower portion of the base bracket are compressed.

  According to a second aspect of the present invention, in the first aspect of the present invention, a bolt with a curing cap is screwed onto a long nut provided at the upper end of the anchor bolt, and the curing cap is covered with the anchor bolt in a foundation. The length of the bolt that embeds the bolt so that it protrudes from the upper surface, removes the bolt and the curing cap from the long nut after curing the foundation concrete, forms a cavity in the foundation concrete from the upper surface to the long nut, and fixes the base bracket to the foundation A configuration that enables screwing to the nut is adopted.

  According to the invention of claim 3, a horizontal support plate that holds the base in a state of being floated from the foundation is coupled to both ends of the bottom plate provided with the long holes, and the base is fitted to the outer end portions of both support plates. The structure which provided the standing plate which opposes at intervals, and provided the penetration hole of the fastener which fixes a base to both standing plates is employ | adopted.

  In the invention of claim 4, the horizontal support plate that holds the base in a state of floating from the foundation is coupled to both ends of the bottom plate provided with the long holes, while the standing plate is provided on the outer end of the support plate, A configuration is adopted in which an upper plate that overlaps the top end of the base is provided at the upper end of the upright plate, and a fastener insertion hole for fixing the base is provided between the upright plate and the top plate.

  According to the invention of claim 5, the upright plates facing each other at intervals at which the base is fitted are provided at both ends of the bottom plate provided with the long holes, and the base is floated from the foundation at a position closer to the lower part on the facing surfaces of the two upright plates. The support plate held in a raised state is cut and raised to provide a structure in which insertion holes for fasteners for fixing the base are provided on both standing plates.

  The invention of claim 6 is provided with a fixing plate having a long hole at the lower edge of the side portion of the support base that holds the base in a state of floating from the foundation, and is opposed to the both ends on the support base at an interval at which the base is fitted. The structure which provided the standing board and provided the insertion hole of the fastener which fixes a base to both standing boards is employ | adopted.

  According to the seventh aspect of the present invention, the support base for holding the base in a state of floating from the foundation is formed in a rectangular tube shape having a fissure on the upper surface, a long hole is provided in the bottom plate of the support base, and both ends on the support base are provided. The structure which provided the standing plate which opposes at the space | interval which a base fits in a part, and provided the penetration hole of the fastener which fixes a base to both standing plates is employ | adopted.

  Here, the base bracket is formed by press working using a metal plate having sufficient strength, and the base is compressed by sandwiching the top of the base and the bottom of the base bracket with a tool such as a vise. In this state, the base bracket and the base are joined by screwing a screw as a fastener into the base from the insertion hole.

  The base bracket is placed directly on the foundation, fixed by screwing the bolt inserted through the long hole into the long nut of the anchor bolt, and supported with the foundation bracket floating from the foundation. Therefore, after the base bracket and the base are fixed, the bolt can be completely tightened using the lower space of the base.

According to the present invention, the base is fitted into the base bracket fixed to the foundation, and the base bracket and the base are coupled by the fastener in a compressed state in which the top end of the base and the lower portion of the base bracket are compressed. , The foundation can be placed on the foundation without the occurrence of lifting,
The level of the foundation can be accurately determined.

  In addition, a bolt with a curing cap is screwed onto a long nut provided at the upper end of the anchor bolt, and this anchor bolt is embedded in the foundation so that the bolt with the curing cap protrudes from the upper surface. After curing, the bolt and the curing cap were removed from the long nut, and a cavity reaching the long nut from the top surface was formed in the foundation concrete, so the base bracket could be fixed directly to the foundation by bolting, and the foundation Since the base can lift the base from the foundation, it is possible to tighten the bolts for fixing the base base after the base is placed, and the base placement accuracy can be improved.

  In addition, since the base bracket is fixed directly to the foundation by bolting, the base can be fixed only by the base bracket, which provides excellent construction efficiency and load support strength, and reduces the number of parts and is inexpensive. The foundation can be constructed.

  Hereinafter, embodiments of the present invention will be described based on illustrated examples.

  In the first embodiment of the base metal fitting 1 shown in FIGS. 1 to 5, rising plates 4 are provided at both ends in the front-rear direction of a rectangular bottom plate 3 having a long hole 2 in the front-rear direction at the center. A horizontal support plate 5 that holds the base A in a state of floating from the foundation B is coupled to the upper end of the plate 4 so as to protrude outwardly opposite each other, and the base A is formed at the outer end portions of both support plates 5. The upright plates 6 that face each other at intervals of fitting are provided, and the insertion holes 7 of the fasteners that fix the base A to the upright plates 6 are provided.

  The base metal fitting 1 is bent by press molding from a single metal plate having sufficient strength, placed directly on the upper surface of the foundation B, and fixed in a state where the foundation A is floated from the foundation B. ing.

  In order to fix the base receiving metal fitting 1 to the foundation B, the anchor bolt 8 embedded in the foundation B is covered with a curing cap 10 that is peelable from concrete on a long nut 9 screwed to the upper end portion thereof. Bolts 11 are screwed together, and the anchor bolts 9 are embedded in the foundation B so that the bolts 11 covered with the curing caps 10 protrude from the upper surface, and after the foundation concrete is cured, the bolts 11 and the curing caps 10 are connected from the long nuts 9. A cavity 12 reaching the long nut 9 from the upper surface is formed in the foundation concrete, and the fastening bolt 13 for fixing the base bracket 1 to the foundation B can be screwed to the long nut 9.

  The base receiving metal fitting 1 according to the first embodiment has the above-described configuration, and in order to perform the base A construction, first, a foundation B in which anchor bolts 8 are embedded at a predetermined interval is constructed.

  As shown in FIG. 5, the anchor bolt 8 is screwed with a bolt 11 covered with a curing cap 10 to a long nut 9 screwed to the upper end portion, and the anchor bolt 8 is put into the foundation B in the curing state. The bolt 11 covered with the cap 10 is buried so as to protrude from the upper surface, and after curing the basic concrete, the bolt 11 and the curing cap 10 are removed from the long nut 9 to form a cavity 12 reaching the long nut 9 from the upper surface in the basic concrete.

  Next, the base support 1 is placed directly on the portion of the cavity 12 on the foundation B, the fastening bolt 13 inserted into the cavity 12 from the long hole 2 of the bottom plate 3 is screwed into the long nut, and the washer is interposed. After fixing the base bracket 1 to the base B, the base A facing the base B is fitted between the upright plates 6 of the base bracket 1, and the base A is supported by the horizontal support plate 5, and this base A The lower step formed by the top of the base plate and the lower surface of the support plate 5 of the base bracket 1 is compressed and compressed with a tool such as a vise, and in this compressed state, from the insertion hole 7 provided in the upright plate 6 A fastener 14 using screws is screwed into the base A, and the base A is fixed on the foundation B via the base bracket 1.

  In addition, what is necessary is just to be supported by the foundation packing 15 in the middle between the foundation receiving metal 1 of the foundation A, and sufficient support strength of the foundation A can be ensured by the combined use of the foundation packing 15, and the foundation packing 15 Since the normal height dimension is 2 cm, the base metal fitting 1 is set so that the height dimension from the bottom surface of the bottom plate 3 to the top surface of the support plate 5 matches the basic packing 15.

  As described above, the base bracket 1 can be adjusted in the front-rear position with respect to the anchor bolt 8 by the long hole 2 provided in the bottom plate 3, can absorb errors in the embedded position of the anchor bolt 8, and Since the base A is fixed to the upright plate 6 with the fasteners 14 in a compressed state in which the top of A and the lower step of the base bracket 1 are narrowed down, the base A is lifted and the level of the base A is raised. Can be done accurately.

  The second embodiment of the base bracket 1 shown in FIGS. 6 and 7 is a modification of the base bracket of the first embodiment described above. In addition, in 2nd Embodiment and the base metal fitting 1 after it, the same part as 1st Embodiment is demonstrated using the same code | symbol.

  The base metal fitting 1 of this second embodiment is provided with rising plates 4 at both ends in the front-rear direction of a rectangular bottom plate 3 provided with a long hole 2, and a base A as a foundation B at the upper ends of both rising plates 4. A horizontal support plate 5 that is held in a floating state is coupled so as to protrude outwardly opposite to each other, and an upright plate 6 is provided at an outer end portion of the support plate 5, and a base is provided at an upper end portion of the upright plate 6. An upper plate 16 that overlaps the top end of A is provided, and an insertion hole 7 for a fastener 14 that fixes the base A is provided on the upright plate 6 and the upper plate 16.

  In the base bracket 1 of the second embodiment, the base A is placed on the support plate 5 with the base A fitted between the support plate 5 and the upper plate 16 as shown in FIG. Except for fixing 16 and the base A with the fastener 14, the base A can be fixed on the base B in a state of floating from the base B by the same method as in the first embodiment.

  The base metal fitting 1 of the third embodiment shown in FIG. 8 to FIG. 10 is an interval in which the base A is fitted to both ends in the front-rear direction of a rectangular bottom plate 3 provided with a long hole 2 in the front-rear direction at the center. The upright plate 6 facing each other is provided, an upward U-shaped cut is made at a position near the lower part on the opposed surfaces of the upright plates 6, the portion surrounded by the cut is bent inwardly and protruded horizontally, and the base A Is formed by cutting and raising the support plate 3 that is held up from the base B, and the lower portions of both support plates 3 are formed as square holes 17, and the fastener 14 that fixes the base A to both standing plates 3. The insertion holes 7 are provided.

  The base bracket 1 of the third embodiment is also fixed in a state where the base A is lifted from the base B on the base B in the same manner as the base bracket 1 of the first embodiment described above. However, since the square holes 17 are provided on the front and rear surfaces, the wrench can be inserted into the square holes 17 to fasten the fastening bolts 13. For this reason, the base bracket 1 is fixed to the base A in advance. A fixing method in which the base A is arranged on the foundation B and the fastening bolt 13 inserted in advance in the long hole 2 is screwed into the anchor bolt 8 can be adopted.

  In addition, when the base bracket 1 is fixed to the base A in advance, the base A can be pulled down by screwing the fastening bolts 13, and the warp generated in the base A can be corrected as shown in FIG. Can do.

  In the base metal fitting 1 of the third embodiment, as shown in FIGS. 9 and 10, horizontal ridges 18 are provided in multiple stages on the inner surface of the upright plate 6, and the ridges 18 are fixed to the base A. In this example, the base A and the upright plate 6 can be joined more firmly by causing the base A to penetrate into the base A.

  Such a chevron ridge 18 can also be applied to the first and second embodiments described above and the following embodiments.

  The base bracket 1 of the fourth embodiment shown in FIG. 11 is provided with a fixing plate 20 having a long hole 2 at the lower edge of the side of a support base 19 that holds the base A in a state where it floats from the foundation B. The upright plates 6 facing each other at the interval at which the base A is fitted are provided at both front and rear ends on the base 19, and the insertion holes 7 of the fasteners 14 for fixing the base A are provided in both the upright plates 6.

  The support base 19 includes a rectangular support plate 3, vertical side plates 21 provided on both sides of the support plate 3, an installation plate 22 provided on the lower edge of the one side plate, and a lower edge of the other side plate 21. The fixed plate 20 provided and the upright plate 6 provided at both ends of the support plate 3 are formed by bending from a single metal plate, and in the same manner as the base bracket 1 of the first embodiment described above, The base A can be fixed on the foundation B in a state of being lifted from the foundation B.

  The base bracket 1 of the fifth embodiment shown in FIG. 12 is formed by forming a support base 23 that holds the base A in a state of floating from the foundation B into a rectangular tube shape having a fissure 24 on the upper surface. The long plate 2 is provided in the bottom plate 3 of the base plate 23, the upright plates 6 that are opposed to each other at the interval at which the base A is fitted are provided at both end portions of the support plate 23 on the support plate 23, and the base A is fixed to both the upright plates 6 The insertion hole 7 of the fastener 14 to be provided is provided, and is formed by bending from a single metal plate in the same manner as the base bracket 1 of the fourth embodiment, and the first embodiment described above. The base A can be fixed on the base B in a state where it is floated from the base B in the same manner as the base bracket 1.

  The base metal fitting 1 of the sixth embodiment shown in FIG. 13 has a rising plate 26 facing the both sides of the bottom plate 3 provided with the long holes 2, with the support base 25 holding the base A in a state of floating from the foundation B. And a horizontal support plate 5 that is bent outward from the rising plate 26, a rising plate 6 is provided at both ends of both horizontal support plates 5, and the fastener 14 that fixes the base A to both the rising plates 6 is provided. Similar to the base bracket 1 of the fourth embodiment, the insertion hole 7 is provided. The base bracket 1 is bent from a single metal plate, and the base bracket of the first embodiment described above. 1, the base A can be fixed on the foundation B in a state of floating from the foundation B.

  The base bracket 1 of the seventh embodiment shown in FIG. 14 is a modification of the fifth embodiment, and is a stand that is provided to face both ends of the support plate 5 at intervals where the base A is fitted. The plate 6 has an integrated structure on both sides, and an upward extension plate 27 is provided at the upper end of the upright plate 6, and an insertion hole 7 for the fastener 14 is provided in the extension plate 27, as shown in FIG. In addition, the base A is fixed on the base B in a state where it is floated from the base B, and at the same time, the pillar C and the extension plate 27 on the base A can be fixed by the fastener 14.

  In the base bracket 1 of the seventh embodiment, the boss of the column C is inserted into the basal hole provided in the base A, and the fastener screwed into the base A from the insertion hole 7 of the upright plate 6 reaches the basin. If it does so, the joint strength of the base A and the pillar C can be improved.

  As described above, the base bracket 1 of each embodiment can be fixed directly on the foundation B and fixed in a state where the base A is floated from the foundation B, and each foundation bracket 1 is in the middle of the foundation. It can also be used in the assembling part and pillar part, and by bending the base bracket 1 from a single metal plate, it has excellent construction efficiency and load support strength, and has a small number of parts and is cost-effective In addition to being able to construct an inexpensive base, the top of the base A and the lower part of the base bracket 1 are joined in a compressed and narrowed state so that the base A is not lifted on the foundation B The level of the base A can be accurately obtained.

The perspective view which shows the base metal fitting of 1st Embodiment Longitudinal front view of the usage state showing the base bracket of the first embodiment The expanded vertical side view of the use condition which shows the base metal fitting of 1st Embodiment The top view which shows the base metal fitting of 1st Embodiment An enlarged vertical side view showing the structure of anchor bolts embedded in the foundation The perspective view which shows the base bracket of 2nd Embodiment Longitudinal side view of the usage state showing the base bracket of the second embodiment The perspective view which shows the base bracket of 3rd Embodiment The expanded vertical side view of the use condition which shows the base metal fitting of 3rd Embodiment An enlarged vertical side view of the main part The perspective view which shows the base bracket of 4th Embodiment The perspective view which shows the base bracket of 5th Embodiment The perspective view which shows the base metal fitting of 6th Embodiment The perspective view which shows the base bracket of 7th Embodiment Longitudinal front view of the usage state showing the base brackets of the fifth and seventh embodiments The front view which shows the method of correcting the curvature of a foundation using the foundation bracket of 3rd Embodiment

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Base mounting bracket 2 Long hole 3 Bottom plate 4 Standing plate 5 Support plate 6 Standing plate 7 Insertion hole 8 Anchor bolt 9 Long nut 10 Curing cap 11 Bolt 12 Cavity 13 Fastening bolt 14 Fastener 15 Base packing 16 Top plate 17 Square hole 18 Yamagata ridge 19 Support base 20 Fixing plate 21 Side plate 22 Installation plate 23 Support base 24 Fissure 25 Support base 26 Rising plate 27 Extension plate

Claims (7)

  An anchor bolt is embedded in the foundation, and a base receiving metal fitting with a fitting part that holds the base in a state of floating from the foundation is mounted on the top of the bottom plate provided with a long hole, so that the long hole corresponds to the anchor bolt. The base bracket is fixed to the foundation by tightening the bolts that are screwed into the nuts of the anchor bolts. Then, the base is fitted into the fitting portion of the base bracket, and the top end of the base and the base bracket are fixed. A foundation construction method in which the base bracket and the base are joined by a fastener in a narrowed state in which the lower part of the bracket is compressed. Screw a bolt with a curing cap on the long nut provided at the upper end of the anchor bolt,
This anchor bolt is embedded in the foundation so that the bolt with the curing cap protrudes from the top surface, and after curing the foundation concrete, the bolt and the curing cap are removed from the long nut to form a cavity in the foundation concrete that reaches the long nut from the top surface. The base construction method according to claim 1, wherein the base fixing metal fitting can be screwed onto the long nut of the bolt.   A horizontal support plate that holds the base in a state of being floated from the foundation is coupled to both ends of the bottom plate provided with the long holes, and upright plates that are opposed to each other at intervals at which the base is fitted to the outer ends of both support plates. A base bracket that is provided and provided with insertion holes for fasteners that fix the base to both upright plates.   A horizontal support plate that holds the base in a state of floating from the foundation is coupled to both ends of the bottom plate provided with a long hole, while an upright plate is provided at the outer end of the support plate, and at the upper end of the upright plate A base receiving bracket provided with an upper plate that overlaps the top end of the base, and provided with an insertion hole for a fastener for fixing the base to the upright plate and the top plate.   A support plate is provided at both ends of the bottom plate provided with a long hole so as to face each other at intervals where the base is fitted, and the base is held in a state of being floated from the foundation at a position closer to the lower part on the opposing surface of the both stand plates. A base receiving metal fitting that is provided with a through hole for a fastener that projects by cutting up and fixes the base to both upright plates.   A fixed plate having a long hole is provided at the lower edge of the side of the support base that holds the base in a state of floating from the foundation, and upright plates facing each other at intervals where the base fits are provided at both ends on the support base. A base bracket with a fastener insertion hole for fixing the base to the plate. A support base that holds the base in a state of floating from the foundation is formed in a rectangular tube shape having a fissure on the upper surface, a long hole is provided in the bottom plate of the support base, and the base is fitted to both ends of the support base. A base bracket provided with upright plates facing each other at intervals, and provided with insertion holes for fasteners for fixing the bases to both the upright plates.

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