JP2006328845A - Earthquake-resistant reinforcing frame for wooden building and earthquake-resistant reinforcing construction method by earthquake-resistant reinforcing frame - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To improve earthquake-resistant strength by fitting without openings even if sizes of the openings surrounded by columns, sills, girders or the like for a wooden building differ from one another while shortening a time required for the fitting and reducing labor. <P>SOLUTION: In an earthquake-resistant reinforcing frame, four inverted L-shaped and L-shaped frame members 1, 2, 3 and 4 are arranged symmetrically to upper, lower, right and left sections, and a frame extensible in the upper, lower, left and right directions is manufactured by connecting ends sections and ends of each frame member 1, 2, 3 and 4 by joining members 5, 5, 5 and 5, respectively. In the earthquake-resistant reinforcing frame, braces 6 and 6 capable of being stretched and adjusted from internal four corners of the frame are stretched orthogonally, blocks 7 forming inserting holes for hole-down anchor bolts are mounted in the lower section of the frame and plates 8, 8, 8 and 8 for fixing studs are fitted on the inside of each frame member 1, 2, 3 and 4. In such an earthquake-resistant reinforcing frame, the earthquake-resistant reinforcing frame is tightly stuck and fixed into the opening surrounded by the columns, the sills, the girders or the like for the wooden building without causing intervals. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a seismic reinforcement frame for seismic reinforcement by fitting between a pillar erected between a base of a wooden building, a beam, an eaves girder, and the like and a seismic reinforcement method using the seismic reinforcement frame.

  Conventionally, in wooden buildings, wooden bracing plates are diagonally fitted between pillars between wooden bases fixed on a concrete foundation and wooden beams laid above and eaves girder. It is generally known that each joint part is seismically reinforced by fastening a metal plate or the like with a nail or a bolt or the like.

In addition, a detachable seismic device (frame body) is disclosed in which an outer frame of a four-round outer frame and a brace (strut) are assembled and attached with a lightweight steel frame in an opening of an existing wooden building (see Patent Document 1), and a concrete foundation of an existing building There is disclosed a frame that is seismically reinforced by a steel receiving beam and a steel brace frame that are attached to the base, pillar, and second floor beam from the outside (see Patent Document 2). An intermediate frame is connected between the inner side surfaces of the upper and lower intermediate parts of a frame body in which a pair of vertical frames and a pair of upper and lower horizontal frames are connected at the ends, and a low yield point steel is provided at the center of the intermediate frame, and the yield point A steel bearing wall is disclosed in which four corners of steel and four corners of the frame are connected in an X-shaped brace (bar crossing) (see Patent Document 3).
JP 2002-227426 A JP 11-36611 A JP 2001-90376 A

  However, the method of seismic reinforcement by fitting the bracing plates diagonally and fastening them with nails, and fixing metal parts such as metal plates with nails or bolts at each joint repeatedly causes severe shaking such as earthquakes. In addition to problems that cannot be fully reinforced due to bending of the hardware, nails and bolts being removed, temporary attachment of the bracing plate and main attachment, and attachment of hardware to each joint Since there are many places and it takes a considerable amount of time and labor to install, there are problems such as being cut out.

  In addition, the techniques described in Patent Document 1, Patent Document 2, and Patent Document 3 are those in which the four sides of the frame are fixed, and Patent Document 1 and Patent Document 3, such as columns and columns of buildings, It is designed to fit inside the opening surrounded by the base and beams, but the dimensions inside the opening are not constant, and there are differences of several mm to several cm. However, if it is manufactured according to the dimensions each time, it takes time and effort, and if there is a gap between the frame and the pillar, base, beam, there is a problem that sufficient seismic reinforcement strength cannot be obtained. As in Patent Document 2, a seismic reinforcement frame with a steel frame is attached from the outside of a building to a concrete foundation under a pillar, foundation, beam, or foundation via wall material or tie-in concrete. Stretching pillars, foundations, beams, etc. directly with a steel frame Structural problems that can not support Te there is.

  Therefore, in view of the above problems, the present invention provides an inner side of an opening surrounded by a pillar, a base, a beam, etc., even if there is a slight dimensional difference in the dimension inside the opening surrounded by a column, a base, a beam, etc. It is an object of the present invention to provide a seismic reinforcement frame for a wooden building and a seismic reinforcement method using the seismic reinforcement frame, which can be fitted in a space without any gaps to improve the seismic reinforcement strength.

In order to achieve the above object, the present invention provides a seismic reinforcing frame for a wooden building and a seismic reinforcing method using the seismic reinforcing frame by taking the measures described below.
That is,
(1) Upside down, left and right, four inverted L-shaped and L-shaped frame members are arranged symmetrically, and end portions and end portions of the respective frame members are joined together by joint members, and can be expanded vertically and horizontally. An anti-seismic reinforcement frame for a wooden building, characterized in that it is constructed by stretching bracing braces diagonally adjustable from the four inner corners of the frame.
(2) An anti-seismic reinforcement frame for a wooden building according to (1) above, wherein a block in which an insertion hole for a hole-down anchor bolt is formed is provided on either the left or right side of the lower frame member of the frame. .
(3) The seismic reinforcement frame for wooden buildings according to (1) or (2) above, wherein plates for fixing studs are provided on the upper and lower sides of the frame.
(4) In the preceding item, a large number of large and small mounting holes are formed alternately on the outer surface of each frame member and joint member of the frame, and a number of long holes for mounting work are formed on the inner surface. The earthquake-resistant reinforcement frame according to any one of (1) to (3).
(5) Four L-shaped and L-shaped frame members are arranged symmetrically on the top, bottom, left, and right, and the end portions and end portions of each frame member are joined together by joint members so that they can be expanded vertically and horizontally. Fit the rectangular frame into the opening surrounded by the pillars, foundations, beams, etc. of the wooden building, and fix each frame member so that it is in close contact with the inner surfaces of the pillars, foundations, beams, etc. A seismic reinforcement method using a seismic reinforcement frame for wooden buildings, which is constructed by attaching a hole-down anchor bolt to a concrete foundation under the foundation.
(6) The seismic reinforcement method using the seismic reinforcement frame for a wooden building according to (5) above, wherein plates are provided on the upper and lower sides of the frame, and are attached to and fixed to the studs.

  As described in the above means, according to the present invention, four inverted L-shaped and L-shaped frame members are arranged symmetrically on the top, bottom, left and right, and the end portions and the end portions of the respective frame members are joined by joint members. In addition, it is a rectangular frame that can be stretched vertically and horizontally, and is composed of bracing braces that can be adjusted diagonally diagonally from the inner four corners of the frame, surrounded by pillars, foundations, beams, etc. of wooden buildings Since each frame member is fixed so that it is in close contact with the pillar, base, beam, etc., there is no gap between the plate and the bracing plate in the conventional wooden building. Installation of hardware is unnecessary, shortening the time required for installation and reducing labor, and making it a steel frame that closely adheres to the inside of pillars, foundations, beams, etc. of wooden buildings and is stretched Firmly supported by the state From an effect that it is possible to greatly improve the earthquake-proof reinforcement strength.

  In addition, a block with holes for the hole-down anchor bolts is provided inside either the left or right side of the lower frame member of the frame, and the frame is made concrete by fixing the concrete foundation under the foundation and the frame with the anchor bolt. The effect is firmly supported by the foundation.

  In addition, by providing plates for fixing the studs on the inner and upper sides of the frame so as to be fastened to the studs, a favorable effect can be obtained in finishing the wall and improving the strength.

  In the best mode for carrying out the present invention, inverted L-shaped and L-shaped steel frame members are arranged symmetrically in the upper, lower, left and right directions, and the end portions and the end portions of the respective frame members are respectively made of steel. A rectangular frame that can be stretched vertically and horizontally by joining together with joint members, and is constructed by stretching steel bracing braces that can be diagonally adjusted from the inner four corners of the frame. Fit into the opening surrounded by the beam, etc., and fix each frame member so that it adheres to the pillar and base, beam etc. without gap, and at the bottom part of the frame, the hole down on either the left or right side of the frame member In this embodiment, a block in which an insertion hole for an anchor bolt is formed is provided, and a hole-down anchor bolt is fixed to a concrete foundation under a foundation, and a plate is provided on the upper and lower sides of the frame to be fixed to a stud. Hereinafter, embodiments will be described with reference to the drawings.

  FIG. 1 is a perspective view showing an embodiment of a seismic reinforcement frame for a wooden building according to the present invention. As shown in the figure, four L-shaped and L-shaped frame members 1, 2, 3, and 4 are arranged symmetrically on the top, bottom, left, and right, and the ends and ends of the frame members 1, 2, 3, and 4 are symmetrically arranged. The joints 5, 5, 5, and 5 are joined together to form a rectangular frame F that can be expanded vertically and horizontally (in the direction of the arrow), and the brace braces 6 and 6 that can be tension-adjusted from the inner four corners of the frame are diagonal. A block 7 having a hole through which a hole-down anchor bolt is inserted is provided inside the lower part of the frame F (in this embodiment, the frame member 2), and each frame member 1, 2, 3 is provided. , 4 are provided with plates (stays) 8, 8, 8, 8 for fixing studs.

  As shown in FIG. 2, the frame member 1 is formed in a reverse L-shape using a commonly used steel lip groove steel, and the outer surface is strong with lag screw bolts, nut tightening through bolts, etc. ... a large number of mounting holes 1a for screwing and mounting, and a large number of small mounting holes 1b for mounting with nails or ordinary wood screws, etc. Slots 1c,... For performing operations by inserting tightening through bolts, nails, wood screws, etc. from the inside are drilled, and slots 1d for attaching the joints in a stretchable manner by joint members at the ends. 1d, 1e, and 1e are drilled.

  Further, a plate (stay) 8 for fixing the stud is provided from the upper side to the inner lower side according to the position of the stud, and a mounting hole 8a for attaching and fastening to the stud with a lag screw bolt or the like is formed. A reinforcing plate 9 is provided at the corner, and a catching hole 9a for catching the end of the bracing brace is formed.

  As shown in FIG. 3, the frame member 2 is formed into an L-shape using a commonly used steel lip groove steel, and is opposite (symmetrical) to that shown in FIG. On the outer surface, there are alternating large mounting holes 1a for mounting with lag screw bolts or nut tightening through bolts, and small mounting holes 1b for mounting with nails or ordinary wood screws. Are drilled on the inner surface, and slotted bolts 1c,... For inserting and operating lug screw bolts, nut tightening through bolts, nails, wood screws, etc. are drilled from the inside. Are elongated holes 1d, 1d, 1e, and 1e that are attached in a stretchable manner.

  In addition, a plate (stay) 8 for fastening the stud is provided from the bottom to the inside upward according to the position of the stud, and a mounting hole 8a for fastening to the stud with a lag screw bolt or the like is drilled. Reinforcing plates 9 are provided at the corners, hook holes 9a for hooking the ends of bracing braces are drilled, and blocks 7 are provided to insert through holes 7a for inserting hole-down anchor bolts. Is drilled.

The frame member 3 is manufactured in the opposite (symmetrical) manner with respect to FIG. 2, and the frame member 4 is not shown because it may be manufactured in the same manner as in FIG.
The four inverted L-shaped and L-shaped frame members 1, 2, 3, 4 are arranged symmetrically on the upper, lower, left, and right sides, and the end portions and the end portions of the respective frame members are connected to the joint members 5, 5, respectively. 5 and 5, a rectangular frame is formed, and the hooks of the reinforcing plates 9, 9, 9, 9 having the ends of the bracing braces 6, 6 provided at the corners of the frame members 1, 2, 3, 4 When it is hooked and stretched on 9a, 9a, 9a, 9a, it becomes as shown in FIG.

  As shown in FIG. 4, the joint member 5 is a straight joint member using a lip groove steel made of steel having a smaller outer diameter than the frame members 1, 2, 3, 4. A member having a size that fits smoothly into the inner diameter of each end of 3 and 4 is selected, and a large mounting hole 5a for attaching with a lag screw bolt, a nut tightening through bolt or the like on the outer surface, Small mounting holes 5b for mounting with ordinary wood screws, etc. are drilled, and long holes for installation work by inserting lug screw bolts, nut tightening through bolts, nails, wood screws, etc. from the inside 5c and 5c are drilled. It is desirable that the joint member 5 is inserted long into the ends of the frame members 1, 2, 3, and 4 in order to obtain stable support.

  The frame members 1, 2, 3, 4 and the joint member 5 are manufactured using steel lip groove steel generally used in this embodiment, but the present invention is limited to this. is not. It may be made of a square steel tube, or may be made of other metals that are not steel but rigid or non-metallic.

  The bracing brace 6 has a tension adjusting member 6a such as a turn buckle and hooks 6b and 6b at both ends connected by round bars 6c and 6c, and the connecting portion is screwed by left and right screws, and the tension adjusting member 6a is connected. It can be expanded and contracted by turning to adjust the tension, and a commercially available product can also be used.

  FIG. 5 is a longitudinal sectional view showing a construction example in which the seismic reinforcement frame constructed as described above is fitted into the opening surrounded by the pillars 10 and 10 of the wooden building, the base 11 and the beam 12 and fixed. The end members of the frame members 1, 2, 3, and 4 are fitted with joint members 5, 5, 5, and 5, and the outer surfaces of the frame members 1, 2, 3, and 4 are the columns 10, 10 and the base 11, the beam 12 is attached and fastened with lag screw bolts 13a, nut-tightening through bolts 13a, nails 14,... And the like, and the joint members 5, 5, 5, 5 are also lag screw bolts and nuts. It is in a state of being fastened with fastening bolts or the like.

  Further, a hole down anchor bolt 15 is inserted into the insertion hole 7a of the block 7 provided in the lower frame member 2, the lower part is fixed to the concrete foundation 16 under the base 11, and the upper end part is tightened with a nut 15a. The hooks 6b, 6b, 6b, 6b at both ends of the bracing braces 6, 6 are hooked on the hooking holes 9a, 9a, 9a, 9a of the reinforcing plates 9, 9, 9, 9 at the four corners, and the tension adjusting member 6a. , 6a, and plates (stays) 8,8,8,8 provided on the upper and lower sides of the frame are fastened to the intermediate columns 17,17 with lag screw bolts or the like.

  The present invention is not only used to improve seismic strength by attaching to openings surrounded by pillars, foundations, beams, etc. of wooden buildings, but also attached to openings enclosed by foundations, underlays, etc. It is also possible to improve the seismic strength under the floor of a wooden building.

It is a perspective view which shows the Example of the earthquake-proof reinforcement frame of the wooden building which concerns on this invention. It is a perspective view of a frame member. It is a perspective view of a frame member. It is a perspective view of a joint member. It is a longitudinal cross-sectional view which shows the construction example of this invention.

Explanation of symbols

F Frame 1, 2, 3, 4 Frame member 1a, 5a Large mounting hole 1b, 5b Small mounting hole 1c, 1d, 1e, 5c Long hole 5 Joint member 6 Bracing brace 6a Tension adjusting member 6b Hook 6c Round bar 7 Block 7a Insertion hole 8 Plate (stay)
8a Mounting hole 9 Reinforcing plate 9a Hooking hole 10 Column 11 Base 12 Beam 13 Lug screw bolt 13a Nut tightening through bolt 14 Nail 15 Hole down anchor bolt 15a Nut 16 Concrete foundation 17

Claims (6)

  Four vertically L-shaped and L-shaped frame members are arranged symmetrically on the top, bottom, left, and right, and the ends of the frame members are joined together by joint members to form a rectangular frame that can be expanded vertically and horizontally. And a seismic reinforcement frame for a wooden building, characterized in that it is constructed by stretching bracing braces diagonally adjustable from the inner four corners of the frame.   2. A seismic reinforcement frame for a wooden building according to claim 1, wherein a block having a hole for inserting a hole-down anchor bolt is provided on either the left or right side of the lower frame member of the frame.   The seismic reinforcement frame for a wooden building according to claim 1 or 2, wherein plates for fixing a stud are provided on the upper and lower sides of the frame.   2. A large number of large and small two mounting holes are formed alternately on the outer surface of each frame member and joint member of the frame, and a plurality of long holes for mounting work are formed on the inner surface. The earthquake-proof reinforcement frame of any one of Claim 3.   A rectangular frame in which four inverted L-shaped and L-shaped frame members are arranged symmetrically on the top, bottom, left, and right, and the ends of each frame member are joined to each other by joint members so that they can be expanded vertically and horizontally. Is fitted into the opening surrounded by the pillars, foundations, and beams of the wooden building, and each frame member is firmly attached to the inner surface of the pillars, foundations, beams, etc., and the lower part of the frame is below the foundation. Seismic reinforcement method using seismic reinforcement frame for wooden buildings, which is constructed by attaching hole down anchor bolts to concrete foundations.   6. A seismic reinforcement method using a seismic reinforcement frame for a wooden building according to claim 5, wherein plates are provided on the upper and lower sides of the frame, and are attached and fixed to the studs.

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