JP2015098753A - Method and structure for reinforcing beam, and auxiliary beam support - Google Patents

Method and structure for reinforcing beam, and auxiliary beam support Download PDF

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JP2015098753A
JP2015098753A JP2013240392A JP2013240392A JP2015098753A JP 2015098753 A JP2015098753 A JP 2015098753A JP 2013240392 A JP2013240392 A JP 2013240392A JP 2013240392 A JP2013240392 A JP 2013240392A JP 2015098753 A JP2015098753 A JP 2015098753A
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support
existing
auxiliary beam
auxiliary
supported member
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JP5913265B2 (en
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俊彦 安江
Toshihiko Yasue
俊彦 安江
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Daiwa House Industry Co Ltd
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Abstract

PROBLEM TO BE SOLVED: To safely perform auxiliary beam fitting work by a small number of persons.SOLUTION: A support (4), which has a width equal to or larger than a width dimension of an auxiliary beam (21) and which provides a temporary placement position and a normal position to the auxiliary beam (21), is fitted to an existing skeleton part (13) coupled to an existing beam (15). A member (6) to be supported, which is attached to an end of the auxiliary beam (21), is temporarily placed in the temporary placement position of the support (4). The member (6) to be supported is slid from the temporary placement position of the support (4) to the normal position. Thus, the auxiliary beam (21) is moved to a position (directly below the existing beams) adjacent to the existing beam (15).

Description

本発明は、梁補強方法および構造、ならびに補助梁支持具に関し、特に、建物における既存梁の下方に補助梁を配置することによって既存梁を補強する方法および構造、ならびに、補助梁を支持するための補助梁支持具に関する。   The present invention relates to a beam reinforcing method and structure, and an auxiliary beam support, and in particular, a method and structure for reinforcing an existing beam by disposing the auxiliary beam below the existing beam in a building, and to support the auxiliary beam. It is related with the auxiliary beam support tool.

既存住宅の間取りを変更する際に、既存梁(中間柱)を撤去することがある。このような場合、その既存柱が支えていた既存梁の下方または側方に補助梁を設置することで、既存梁の剛性を高める補強工事が行われる。また、耐震性の向上を目的として、補助梁による既存梁の補強が行なわれることもある。   When changing the layout of existing houses, existing beams (intermediate pillars) may be removed. In such a case, the reinforcement work which raises the rigidity of the existing beam is performed by installing the auxiliary beam below or on the side of the existing beam supported by the existing column. In addition, for the purpose of improving earthquake resistance, the existing beams may be reinforced with auxiliary beams.

補助梁を既存梁に隣接する位置で固定するための方法や部材は、従来から提案されている。特開2011−26916号公報(特許文献1)には、既存梁の直下に補助梁を配置する場合に、一対の既存柱の対向側面に雌ネジ部材を有する接合具本体を固定し、補助梁の材端に形成されたスリットに連通する雌ネジ挿通孔に、上記雌ネジ部材が挿通されるように補助梁を持ち上げ、雌ネジ部材に雄ネジを螺合させて、補助梁と既存梁とを接着することが開示されている。   Conventionally, methods and members for fixing the auxiliary beam at a position adjacent to the existing beam have been proposed. In JP 2011-26916 A (Patent Document 1), when an auxiliary beam is disposed immediately below an existing beam, a connector main body having a female screw member is fixed to the opposite side surfaces of the pair of existing columns, and the auxiliary beam is fixed. The auxiliary beam is lifted so that the female screw member is inserted into the female screw insertion hole that communicates with the slit formed in the material end of the material, and the male screw is screwed into the female screw member, so that the auxiliary beam and the existing beam Is disclosed.

特開2011−26916号公報JP 2011-26916 A

一般的に、補助梁は重量物であるであるため、補助梁を既存梁の高さまで持ち上げるには多くの作業員が必要となる。特許文献1の部材を用いたとしても、作業員は梁の両端に分かれて補助梁を同時に持ち上げる必要がある。このような高所での作業は不安定であり、危険を伴っていた。   In general, since the auxiliary beam is heavy, many workers are required to lift the auxiliary beam to the height of the existing beam. Even if the member of Patent Document 1 is used, the worker needs to be divided at both ends of the beam and lift the auxiliary beam at the same time. Such work at high altitudes was unstable and dangerous.

本発明は、上記のような課題を解決するためになされたものであって、その目的は、補助梁の取り付け作業を少人数で安全に行うことのできる梁補強方法および構造、ならびに補助梁支持具を提供することである。   The present invention has been made to solve the above-described problems, and its object is to provide a beam reinforcing method and structure capable of safely performing a work of attaching an auxiliary beam with a small number of people, and an auxiliary beam support. Is to provide the ingredients.

この発明のある局面に従う梁補強方法は、建物における既存梁を補助梁によって補強する方法であって、既存梁に連結され、互いに離れて配置された一対の既存躯体部のうちの少なくともいずれか一方の既存躯体部に、補助梁の幅寸法以上の幅を有し、補助梁に対して仮置き位置と正規位置とを提供する支持具を取り付ける工程と、補助梁の端部に、支持具によって支持される被支持部材を取り付ける工程と、支持具の仮置き位置に、補助梁に取り付けられた被支持部材を仮置きする工程と、補助梁に取り付けられた被支持部材を、支持具の仮置き位置から正規位置にスライドさせることによって、補助梁を既存梁に隣接する位置に移動させる工程とを備える。   A beam reinforcement method according to an aspect of the present invention is a method of reinforcing an existing beam in a building with an auxiliary beam, and is connected to the existing beam and is at least one of a pair of existing frame portions arranged apart from each other Attaching a supporting tool having a width equal to or larger than the width of the auxiliary beam to the existing frame and providing a temporary placement position and a normal position with respect to the auxiliary beam; Attaching the supported member to be supported; temporarily placing the supported member attached to the auxiliary beam at the temporary placement position of the support; and And a step of moving the auxiliary beam to a position adjacent to the existing beam by sliding from the placement position to the normal position.

好ましくは、支持具の正規位置は、既存梁の下方に位置し、補助梁に取り付けられた被支持部材が正規位置に配置された状態で、既存躯体部と被支持部材とを固定具によって固定する工程をさらに備える。   Preferably, the normal position of the support is located below the existing beam, and the supported body attached to the auxiliary beam is positioned at the normal position, and the existing frame and the supported member are fixed by the fixture. The process of carrying out is further provided.

好ましくは、支持具は、被支持部材が正規位置に位置するときに、固定具を露出させる開口を有している。この場合、固定する工程では、支持具の開口を通して、固定具を被支持部材に打ち込む。   Preferably, the support tool has an opening for exposing the fixing tool when the supported member is positioned at the normal position. In this case, in the fixing step, the fixing tool is driven into the supported member through the opening of the supporting tool.

なお、既存躯体部と被支持部材とが固定された後に、既存躯体部から支持具を取り外す工程をさらに備えてもよい。   In addition, you may further provide the process of removing a support tool from the existing housing part, after the existing housing part and a to-be-supported member are fixed.

好ましくは、支持具は、既存躯体部に当接される部分を有するベース部と、ベース部に連結され、被支持部材を受入れる受入れ部とを含む。この場合、受入れ部のうち既存躯体部の内側面に対面する部分に、開口が設けられることが望ましい。   Preferably, the support includes a base portion having a portion that comes into contact with the existing housing portion, and a receiving portion that is connected to the base portion and receives the supported member. In this case, it is desirable that an opening be provided in a portion of the receiving portion that faces the inner surface of the existing housing portion.

被支持部材は、補助梁に固定される天板部と、天板部より下方に延びる立板部とを含んでいてもよい。この場合、支持部の受入れ部は、立板部の厚み分、既存躯体部から離れて配置され、かつ、立板部の上下寸法以上の長さを有する立壁を含むことが望ましい。   The supported member may include a top plate portion fixed to the auxiliary beam and a standing plate portion extending downward from the top plate portion. In this case, it is desirable that the receiving portion of the support portion includes a standing wall that is disposed apart from the existing casing portion by the thickness of the standing plate portion and has a length that is longer than the vertical dimension of the standing plate portion.

好ましくは、仮置きする工程は、補助梁の一方の端部を持ち上げて、一方側の支持具の仮置き位置に、補助梁の一方の端部に取り付けられた一方側の被支持部材を引掛ける工程と、一方側の支持具の仮置き位置に一方側の被支持部材を引掛けた状態で、補助梁の他方の端部を持ち上げる工程とを含む。   Preferably, in the step of temporarily placing, one end of the auxiliary beam is lifted, and the supported member on one side attached to the one end of the auxiliary beam is pulled to the temporary placement position of the support on one side. And a step of lifting the other end of the auxiliary beam in a state in which the supported member on one side is hooked on the temporary placement position of the support on the one side.

好ましくは、支持具を取り付ける工程では、一対の既存躯体部の双方に支持具を取り付ける。一方側の支持具の仮置き位置の幅は、補助梁の他方の端部に取り付けられた他方側の被支持部材が仮置きされる他方側の支持具の仮置き位置の幅よりも長くてもよい。この場合、仮置きする工程は、補助梁の他方の端部を持ち上げた後、他方側の支持具の側方から他方側の被支持部材を挿入して、他方側の被支持部材を他方側の支持具の仮置き位置に仮置きする工程をさらに含んでもよい。   Preferably, in the step of attaching the support tool, the support tool is attached to both of the pair of existing housing parts. The width of the temporary placement position of the support on one side is longer than the width of the temporary placement position of the support on the other side on which the other supported member attached to the other end of the auxiliary beam is temporarily placed. Also good. In this case, in the temporary placing step, after the other end of the auxiliary beam is lifted, the supported member on the other side is inserted from the side of the support on the other side, and the supported member on the other side is moved to the other side. A step of temporarily placing the support tool at a temporary placement position may be further included.

好ましくは、補助梁には、補助梁の上面に沿って延び、幅方向一方側に張り出す支持面を有する既存梁支持具が予め取り付けられており、補助梁を移動させる工程において、既存梁支持具の支持面が既存梁の下面に当接または対面した状態で、一対の既存躯体部の中間に位置し、既存梁を支持していた中間柱を既存梁から取り除くことが望ましい。   Preferably, the auxiliary beam is pre-attached with an existing beam support having a support surface extending along the upper surface of the auxiliary beam and projecting to one side in the width direction. In the step of moving the auxiliary beam, the existing beam support is supported. It is desirable to remove from the existing beam the intermediate column that is located in the middle of the pair of existing frame portions and supports the existing beam in a state where the support surface of the tool is in contact with or faces the lower surface of the existing beam.

この発明の他の局面に従う梁補強構造は、建物における既存梁を補助梁によって補強する構造であって、既存梁に連結され、互いに離れて配置された一対の既存躯体部と、一対の既存躯体部のうちの少なくともいずれか一方の既存躯体部に取り付けられ、補助梁の幅寸法以上の幅を有し、補助梁に対して仮置き位置と正規位置とを提供する支持具と、補助梁の端部に取り付けられ、支持具によって支持される被支持部材とを備える。被支持部材は、支持具の正規位置に配置された状態で、その位置が固定されている。   A beam reinforcement structure according to another aspect of the present invention is a structure in which an existing beam in a building is reinforced by an auxiliary beam, and is connected to the existing beam and arranged apart from each other, and a pair of existing frames A support that is attached to at least one of the existing housings and has a width equal to or greater than the width of the auxiliary beam, and provides a temporary placement position and a normal position with respect to the auxiliary beam; A supported member attached to the end and supported by a support. The position of the supported member is fixed in a state where the supported member is disposed at the normal position of the support tool.

この発明のさらに他の局面に従う補助梁支持具は、建物における既存梁に連結された既存躯体部に取り付けられ、既存梁を補強するために配置される補助梁を支持するための支持具である。補助梁支持具は、既存躯体部に当接される部分を有するベース部と、ベース部に連結され、補助梁の端部に固定された被支持部材を受入れるための受入れ部とを備える。受入れ部は、補助梁の幅寸法以上の幅を有し、補助梁に対して仮置き位置と正規位置とを提供するための載置面を含む。   An auxiliary beam support according to still another aspect of the present invention is a support for supporting an auxiliary beam that is attached to an existing frame portion connected to an existing beam in a building and arranged to reinforce the existing beam. . The auxiliary beam support includes a base portion having a portion that comes into contact with the existing housing portion, and a receiving portion that is connected to the base portion and receives a supported member that is fixed to an end portion of the auxiliary beam. The receiving portion has a width equal to or larger than the width dimension of the auxiliary beam and includes a mounting surface for providing a temporary placement position and a normal position with respect to the auxiliary beam.

本発明によれば、補助梁の取り付け作業を少人数で安全に行うことができる。   According to the present invention, the auxiliary beam can be attached safely by a small number of people.

本発明の実施の形態に係る梁補強構造を模式的に示す正面図である。It is a front view showing typically the beam reinforcement structure concerning an embodiment of the invention. 本発明の実施の形態において、一方の既存柱に取り付けられた補助梁支持具を示す側面図である。In embodiment of this invention, it is a side view which shows the auxiliary beam support tool attached to one existing pillar. 本発明の実施の形態において、一方の既存柱に取り付けられた補助梁支持具を示す斜視図である。In embodiment of this invention, it is a perspective view which shows the auxiliary beam support tool attached to one existing pillar. 本発明の実施の形態における補助梁支持具の構造例を示す斜視図である。It is a perspective view which shows the structural example of the auxiliary beam support tool in embodiment of this invention. 本発明の実施の形態において、補助梁の端部が補助梁支持具の仮置き位置に載置された状態を示す斜視図である。In embodiment of this invention, it is a perspective view which shows the state by which the edge part of the auxiliary beam was mounted in the temporary placement position of the auxiliary beam support. 本発明の実施の形態における補助梁支持具の他の構造例を示す斜視図である。It is a perspective view which shows the other structural example of the auxiliary beam support tool in embodiment of this invention. 本発明の実施の形態において、補助梁支持具が一対の既存柱に取り付けられた状態を模式的に示す上面図である。In embodiment of this invention, it is a top view which shows typically the state by which the auxiliary beam support was attached to a pair of existing pillar. 本発明の実施の形態において、補助梁の両端部が補助梁支持具に仮置きされた状態を示す図である。In embodiment of this invention, it is a figure which shows the state by which the both ends of the auxiliary beam were temporarily set | placed on the auxiliary beam support tool. 本発明の実施の形態において、既存梁支持具を装着した補助梁が、補助梁支持具に仮置きされた状態を示す斜視図である。In embodiment of this invention, it is a perspective view which shows the state by which the auxiliary beam equipped with the existing beam support was temporarily placed in the auxiliary beam support. 本発明の実施の形態における既存梁支持具の構造例を示す断面図である。It is sectional drawing which shows the structural example of the existing beam support tool in embodiment of this invention. 本発明の実施の形態における既存梁支持具の他の構造例を示す断面図である。It is sectional drawing which shows the other structural example of the existing beam support tool in embodiment of this invention. 本発明の実施の形態における梁補強方法の工程順序を示すフローチャートである。It is a flowchart which shows the process sequence of the beam reinforcement method in embodiment of this invention. 図12のフローチャートにおける工程P4の途中状態を示す図である。It is a figure which shows the middle state of the process P4 in the flowchart of FIG. 図12のフローチャートにおける工程P6の途中状態を模式的に示す上面図である。It is a top view which shows typically the middle state of the process P6 in the flowchart of FIG. 図12のフローチャートにおける工程P6の最終状態を示す斜視図である。It is a perspective view which shows the final state of process P6 in the flowchart of FIG. 本発明の実施の形態において、補助梁が補助梁支持具の正規位置に載置された状態を示す斜視図である。In embodiment of this invention, it is a perspective view which shows the state in which the auxiliary beam was mounted in the normal position of the auxiliary beam support tool. 本発明の実施の形態の変形例1に係る補助梁を模式的に示す図である。It is a figure which shows typically the auxiliary beam which concerns on the modification 1 of embodiment of this invention. 本発明の実施の形態の変形例2において、他方側の既存柱に固定される支持用部材の構造例を示す図である。In the modification 2 of embodiment of this invention, it is a figure which shows the structural example of the member for support fixed to the existing pillar of the other side.

本発明の実施の形態について図面を参照しながら詳細に説明する。なお、図中同一または相当部分には同一符号を付してその説明は繰返さない。   Embodiments of the present invention will be described in detail with reference to the drawings. In the drawings, the same or corresponding parts are denoted by the same reference numerals and description thereof will not be repeated.

本実施の形態では、建物における既存梁の下方に補助梁が配置されることによって、既存梁が補強される。建物は、典型的には木造住宅である。   In the present embodiment, the existing beam is reinforced by arranging the auxiliary beam below the existing beam in the building. The building is typically a wooden house.

(梁補強構造の概略について)
はじめに、本実施の形態に係る梁補強構造の概略について説明する。
(About the outline of the beam reinforcement structure)
First, an outline of the beam reinforcement structure according to the present embodiment will be described.

図1に示されるように、既存住宅には、既存の躯体部として、基礎(図示せず)上に設けられた土台11と、土台11上に設置された既存柱12,13,14と、これら既存柱12,13,14に支えられた既存梁15と、既存梁15に対して直交する既存梁16,17とが含まれているものとする。これらの構造躯体は、たとえば全て、四角柱形状である。   As shown in FIG. 1, in an existing house, as an existing frame part, a base 11 provided on a foundation (not shown), and existing pillars 12, 13, 14 installed on the base 11, It is assumed that the existing beam 15 supported by these existing columns 12, 13, and 14 and the existing beams 16 and 17 orthogonal to the existing beam 15 are included. All of these structural enclosures have, for example, a quadrangular prism shape.

一対の既存柱12,13は、既存梁15の両端部に連結され、既存梁15を支持している。本実施の形態では、既存梁15の両端部は、既存柱12,13によってそれぞれ間接的に支持されている。より具体的には、既存梁15の一端側は、既存梁17に連結されており、その既存梁17が既存柱13によって支持されている。同様に、既存梁15の他端側は、既存梁16に連結されており、その既存梁16が既存柱12によって支持されている。なお、既存梁15の少なくとも一方側端部は、既存柱12または13によって直接的に支持されていてもよい。   The pair of existing columns 12 and 13 are connected to both ends of the existing beam 15 and support the existing beam 15. In the present embodiment, both ends of the existing beam 15 are indirectly supported by the existing columns 12 and 13, respectively. More specifically, one end side of the existing beam 15 is connected to the existing beam 17, and the existing beam 17 is supported by the existing column 13. Similarly, the other end of the existing beam 15 is connected to the existing beam 16, and the existing beam 16 is supported by the existing column 12. Note that at least one side end of the existing beam 15 may be directly supported by the existing column 12 or 13.

本実施の形態に係る梁補強構造では、このような住宅において、一対の既存柱12,13間に位置する既存柱14(以下「中間柱14」という)が撤去されている。また、既存梁15の下方に、補助梁21が配置されている。補助梁21は、たとえば木材で形成されている。補助梁21の両端部は、たとえば公知のL字形状の支持金物6を介して一対の既存柱12,13に支持されている。なお、既存梁15と補助梁21とを確実に連結させるためには、既存梁15と補助梁21とをまたぐ位置に側板22がさらに設けられることが望ましい。   In the beam reinforcing structure according to the present embodiment, in such a house, an existing column 14 (hereinafter referred to as “intermediate column 14”) located between the pair of existing columns 12 and 13 is removed. An auxiliary beam 21 is disposed below the existing beam 15. The auxiliary beam 21 is made of, for example, wood. Both ends of the auxiliary beam 21 are supported by a pair of existing pillars 12 and 13 via, for example, a known L-shaped support metal 6. In order to securely connect the existing beam 15 and the auxiliary beam 21, it is desirable that a side plate 22 is further provided at a position across the existing beam 15 and the auxiliary beam 21.

本実施の形態では、補助梁21は、仮置き工程を経てから取り付け位置(すなわち、既存梁15の直下)に配置される。補助梁21の仮置き工程を実現するために、上記支持金物6を支持する支持具(以下「補助梁支持具」という)が既存柱12,13に取り付けられる。支持金物6は、補助梁21の固定時に補助梁21の端部を既存柱12,13に支持させるために用いられる支持部材であるとともに、補助梁支持具に支持される被支持部材でもある。   In the present embodiment, the auxiliary beam 21 is disposed at the attachment position (that is, directly below the existing beam 15) after the temporary placement process. In order to realize the temporary placing process of the auxiliary beam 21, a support tool (hereinafter referred to as “auxiliary beam support tool”) that supports the support hardware 6 is attached to the existing columns 12 and 13. The support metal 6 is a support member used for supporting the end of the auxiliary beam 21 to the existing columns 12 and 13 when the auxiliary beam 21 is fixed, and is also a supported member supported by the auxiliary beam support.

(補助梁支持具の構造例および配置例について)
図2および図3は、それぞれ、一方の既存柱13に取り付けられた補助梁支持具4を示す側面図および斜視図である。図4は、補助梁支持具4を示す斜視図である。なお、図3では、既存梁17の延びる方向(長手方向)が矢印A1で示されており、本実施の形態では当該方向を幅方向という。つまり、幅方向は、既存梁15および補助梁21の延びる方向(長手方向)に直交する方向を表わす。また、既存梁15および補助梁21の延びる方向を奥行方向ともいう。また、図4では、補助梁支持具4に支持される支持金物6が想像線にて示されている。
(Example of structure and arrangement of auxiliary beam support)
2 and 3 are a side view and a perspective view, respectively, showing the auxiliary beam support 4 attached to one of the existing pillars 13. FIG. 4 is a perspective view showing the auxiliary beam support 4. In FIG. 3, the direction (longitudinal direction) in which the existing beam 17 extends is indicated by an arrow A1, and this direction is referred to as the width direction in the present embodiment. That is, the width direction represents a direction orthogonal to the extending direction (longitudinal direction) of the existing beam 15 and the auxiliary beam 21. Further, the extending direction of the existing beam 15 and the auxiliary beam 21 is also referred to as a depth direction. Further, in FIG. 4, the support hardware 6 supported by the auxiliary beam support 4 is indicated by an imaginary line.

図2を参照して、補助梁支持具4は、上記支持金物6を支持する。支持金物6は、水平方向に延びる天板部61と、天板部61より下方に延びる立板部62とを含む。支持金物6の天板部61は、予め、補助梁21の端部の下面212に固定されている。図4において想像線で示されるように、天板部61および立板部62には、それぞれ、釘やボルトなどの固定具(図16の「92」)が挿入される複数の貫通穴63,64が設けられている。支持金物6の幅は、補助梁21の幅寸法(図9の「L1」)以下である。これに対し、補助梁支持具4の幅は、少なくとも補助梁21の幅寸法以上であり、ここでは、たとえば補助梁21の幅寸法の2倍以上である。補助梁支持具4は、後述するように、補助梁21に対して仮置き位置422と正規位置421とを提供する。補助梁支持具4は、剛性を有する材料、たとえば鋼材により形成されている。   Referring to FIG. 2, the auxiliary beam support 4 supports the support hardware 6. The support metal 6 includes a top plate portion 61 extending in the horizontal direction and a standing plate portion 62 extending downward from the top plate portion 61. The top plate portion 61 of the support hardware 6 is fixed to the lower surface 212 of the end portion of the auxiliary beam 21 in advance. As indicated by imaginary lines in FIG. 4, the top plate portion 61 and the upright plate portion 62 are each provided with a plurality of through holes 63 into which fixing tools (“92” in FIG. 16) such as nails and bolts are inserted. 64 is provided. The width of the support hardware 6 is equal to or less than the width dimension of the auxiliary beam 21 (“L1” in FIG. 9). On the other hand, the width of the auxiliary beam support 4 is at least equal to or larger than the width dimension of the auxiliary beam 21 and is, for example, twice or more the width dimension of the auxiliary beam 21 here. The auxiliary beam support 4 provides a temporary placement position 422 and a normal position 421 for the auxiliary beam 21 as described later. The auxiliary beam support 4 is made of a material having rigidity, for example, a steel material.

補助梁支持具4は、ベース部41と、ベース部41に連結され、支持金物6を受入れる受入れ部42とを含む。本実施の形態では、既存柱13の内側面130の幅は、補助梁21の幅寸法と略同一であるため、ベース部41は、既存柱13に当接される部分と既存柱13から側方に突出する部分とを有している。図3および図4に示されるように、ベース部41は、既存柱13との当接部分に、固定具91が挿通される複数の貫通穴43が設けられている。   The auxiliary beam support 4 includes a base portion 41 and a receiving portion 42 that is connected to the base portion 41 and receives the support hardware 6. In the present embodiment, since the width of the inner side surface 130 of the existing column 13 is substantially the same as the width dimension of the auxiliary beam 21, the base portion 41 is located on the side that is in contact with the existing column 13 and the side from the existing column 13. And a portion protruding in the direction. As shown in FIG. 3 and FIG. 4, the base portion 41 is provided with a plurality of through-holes 43 through which the fixture 91 is inserted in the contact portion with the existing pillar 13.

受入れ部42は、ベース部41の上端部から、既存柱13の内側面130に沿って上方に立ち上がる立壁45と、底壁44とで構成されている。底壁44は、ベース部41の上端に形成されている。立壁45は、支持金物6の立板部62の厚み分、既存柱13から離れて配置されている。立壁45の表面は、ベース部41の表面と面一状に形成されている。そのため、立壁45の厚みは、ベース部41の厚みよりも、支持金物6の立板部62の厚み寸法以上小さい。受入れ部42の上端面420(つまり、立壁45の上端面)は、幅方向に段差なく延びている。支持状態において、支持金物6の天板部61は、受入れ部42の上端面420に当接(載置)され、支持金物6の立板部62は、受入れ部42の裏面側に受け入れられる。   The receiving portion 42 includes a standing wall 45 that rises upward from the upper end portion of the base portion 41 along the inner side surface 130 of the existing column 13, and a bottom wall 44. The bottom wall 44 is formed at the upper end of the base portion 41. The standing wall 45 is arranged away from the existing pillar 13 by the thickness of the standing plate portion 62 of the support hardware 6. The surface of the standing wall 45 is flush with the surface of the base portion 41. Therefore, the thickness of the standing wall 45 is smaller than the thickness of the base portion 41 by the thickness dimension of the standing plate portion 62 of the support hardware 6. The upper end surface 420 of the receiving portion 42 (that is, the upper end surface of the standing wall 45) extends without a step in the width direction. In the support state, the top plate portion 61 of the support metal 6 is brought into contact (placed) with the upper end surface 420 of the receiving portion 42, and the upright plate portion 62 of the support metal 6 is received on the back side of the receiving portion 42.

受入れ部42の上端面420は、補助梁21の端部が本置きされる正規位置421と、補助梁21の端部が仮置きされる仮置き位置422とを有している。つまり、この上端面420が、補助梁21に対して仮置き位置422と正規位置421とを提供するための載置面である。正規位置421は、既存梁15の下面に対向するように配置され、仮置き位置422は、既存梁15よりも側方に突出するように配置されている。たとえば、正規位置421の幅は、補助梁21の幅寸法と略同一であり、仮置き位置422の幅は、補助梁21の幅寸法以上である。図5には、補助梁21の端部が補助梁支持具4の仮置き位置422に載置された状態が示されている。   The upper end surface 420 of the receiving portion 42 has a normal position 421 where the end of the auxiliary beam 21 is placed in a main position and a temporary placement position 422 where the end of the auxiliary beam 21 is temporarily placed. That is, the upper end surface 420 is a mounting surface for providing the temporary placement position 422 and the normal position 421 with respect to the auxiliary beam 21. The regular position 421 is disposed so as to face the lower surface of the existing beam 15, and the temporary placement position 422 is disposed so as to protrude laterally from the existing beam 15. For example, the width of the normal position 421 is substantially the same as the width dimension of the auxiliary beam 21, and the width of the temporary placement position 422 is greater than or equal to the width dimension of the auxiliary beam 21. FIG. 5 shows a state in which the end of the auxiliary beam 21 is placed at the temporary placement position 422 of the auxiliary beam support 4.

なお、本実施の形態では、支持金物6が補助梁支持具4の受入れ部42に完全に受け入れられた状態(支持状態)においても、図2に示されるように支持金物6の下端部は、受入れ部42の底壁44から浮いた状態となっている。しかしながら、支持状態において、支持金物6の下端部は、受入れ部42の底壁44に接してもよい。ただし、この場合でも、支持金物6が受入れ部42の上端面420に接することが望ましい。つまり、受入れ部42の立壁45の上下方向長さは、支持金物6の立板部62の上下寸法以上であることが望ましい。   In the present embodiment, even when the support hardware 6 is completely received by the receiving portion 42 of the auxiliary beam support 4 (supported state), as shown in FIG. It is in a state of floating from the bottom wall 44 of the receiving portion 42. However, in the support state, the lower end portion of the support hardware 6 may be in contact with the bottom wall 44 of the receiving portion 42. However, even in this case, it is desirable that the support metal 6 is in contact with the upper end surface 420 of the receiving portion 42. That is, it is desirable that the vertical length of the standing wall 45 of the receiving portion 42 is equal to or greater than the vertical dimension of the standing plate portion 62 of the support hardware 6.

受入れ部42の上端面420における、仮置き位置422側の幅方向端縁には、仮置き位置422からの補助梁21の脱落を防止するために、上端面420からさらに立ち上がる立上片(図示せず)などが設けられていてもよい。また、補助梁支持具4には、求められる強度に応じて、支持金物6に干渉しない範囲で補強部材(図示せず)が設けられてもよい。   In the upper end surface 420 of the receiving portion 42, a rising piece (see FIG. 5) further rises from the upper end surface 420 to prevent the auxiliary beam 21 from dropping off from the temporary placement position 422 at the edge in the width direction on the temporary placement position 422 side. (Not shown) may be provided. Further, the auxiliary beam support 4 may be provided with a reinforcing member (not shown) within a range not interfering with the support metal 6 according to the required strength.

図3および図4に示すように、受入れ部42のうち既存柱13の内側面130に対面する部分、すなわち立壁45(図2)の一部には、開口40が設けられている。開口40は、支持金物6が正規位置421に位置するときに、支持金物6の立板部62の貫通穴64を露出させる。つまり、開口40は、貫通穴64を貫通する固定具(の頭部)を露出させる。なお、本実施の形態では、開口40によって全ての貫通穴64が露出される例を示しているが、少なくとも一部の貫通穴64が露出されればよい。また、受入れ部42に、複数の貫通穴64を露出する1つの開口40が設けられることとするが、図6に示されるように、貫通穴64ごとに開口40Aが設けられてもよい。また、支持金物6の立板部62に貫通穴64が設けられていなくても、受入れ部42の立壁45は、固定具を打ち込むべき箇所に開口を有していればよい。   As shown in FIGS. 3 and 4, an opening 40 is provided in a portion of the receiving portion 42 that faces the inner side surface 130 of the existing pillar 13, that is, a part of the standing wall 45 (FIG. 2). The opening 40 exposes the through hole 64 of the standing plate portion 62 of the support metal 6 when the support metal 6 is positioned at the normal position 421. That is, the opening 40 exposes the fixing tool (the head thereof) that penetrates the through hole 64. In the present embodiment, an example in which all the through holes 64 are exposed by the openings 40 is shown, but at least a part of the through holes 64 may be exposed. Moreover, although the one opening 40 which exposes the some through-hole 64 is provided in the receiving part 42, 40 A of openings may be provided for every through-hole 64 as FIG. 6 shows. Even if the through hole 64 is not provided in the standing plate portion 62 of the support metal 6, the standing wall 45 of the receiving portion 42 only needs to have an opening at a place where the fixture is to be driven.

本実施の形態では、補助梁21を片方ずつ持ち上げて、既存柱12,13に取り付けられた補助梁支持具4の仮置き位置に422に、補助梁21に固定された支持金物6を載置する。この場合、先に載置される方(一方側)の補助梁支持具4の受入れ部42の上端面420(仮置き位置422)は、受入れ部42の立壁45に引掛けられた支持金物6の回転運動の支点となるため、上端面420の少なくとも一部は断面R形状を有していることが望ましい。   In the present embodiment, the auxiliary beam 21 is lifted one by one, and the support hardware 6 fixed to the auxiliary beam 21 is placed at the temporary placement position of the auxiliary beam support 4 attached to the existing columns 12 and 13. To do. In this case, the upper end surface 420 (temporary placement position 422) of the receiving portion 42 of the auxiliary beam support 4 on the one (one side) to be placed first is the supporting metal 6 hooked on the standing wall 45 of the receiving portion 42. Therefore, it is desirable that at least a part of the upper end surface 420 has a cross-sectional R shape.

また、後に載置される方の補助梁支持具4の仮置き位置422に補助梁21を載置し易くするために、図7に示されるように、補助梁支持具4における仮置き位置422の幅を、一方側と他方側とで異ならせてもよい。図7には、補助梁支持具4が既存柱12,13に取り付けられた状態(上方から見た状態)が模式的に示されている。図7では、一方の既存柱13側の補助梁支持具4の幅寸法L11の方が、他方の既存柱12側の補助梁支持具4の幅寸法L12よりも長い。この場合、補助梁支持具4の仮置き位置422の幅は、補助梁21の幅寸法よりも大きく、補助梁支持具4Aの仮置き位置422の幅は、補助梁21の幅寸法よりも小さい。つまり、補助梁支持具4Aにおける仮置き位置422と正規位置421とは、部分的に重なっている。なお、この場合でも、補助梁支持具4Aの受入れ部42の上端面420の幅は、補助梁21の端部を仮置きした状態で安定的に補助梁21を支持できる長さであることが望ましい。   Further, in order to make it easier to place the auxiliary beam 21 at the temporary placement position 422 of the auxiliary beam support 4 to be placed later, as shown in FIG. 7, the temporary placement position 422 in the auxiliary beam support 4. The width may be different on one side and the other side. FIG. 7 schematically shows a state in which the auxiliary beam support 4 is attached to the existing columns 12 and 13 (as viewed from above). In FIG. 7, the width dimension L11 of the auxiliary beam support 4 on the one existing column 13 side is longer than the width dimension L12 of the auxiliary beam support 4 on the other existing column 12 side. In this case, the width of the temporary placement position 422 of the auxiliary beam support 4 is larger than the width dimension of the auxiliary beam 21, and the width of the temporary placement position 422 of the auxiliary beam support 4 A is smaller than the width dimension of the auxiliary beam 21. . That is, the temporary placement position 422 and the normal position 421 in the auxiliary beam support 4A partially overlap. Even in this case, the width of the upper end surface 420 of the receiving portion 42 of the auxiliary beam support 4A is a length that can stably support the auxiliary beam 21 in a state where the end portion of the auxiliary beam 21 is temporarily placed. desirable.

図8には、補助梁21の両端部が補助梁支持具4,4Aに仮置きされた状態が示されている。補助梁21が仮置きされた状態では、図7に示されるように、補助梁21は既存梁15よりも側方に位置している。この状態において、既存梁15を下方から支持する既存梁支持具5が補助梁21の中央部(長手方向両端部以外の部分)に取り付けられていることが望ましい。次に、既存梁支持具5について説明する。   FIG. 8 shows a state in which both end portions of the auxiliary beam 21 are temporarily placed on the auxiliary beam supports 4 and 4A. In the state where the auxiliary beam 21 is temporarily placed, the auxiliary beam 21 is located on the side of the existing beam 15 as shown in FIG. In this state, it is desirable that the existing beam support 5 that supports the existing beam 15 from below is attached to the center portion (portions other than both ends in the longitudinal direction) of the auxiliary beam 21. Next, the existing beam support 5 will be described.

(既存梁支持具5の構造例および配置例について)
図9は、既存梁支持具5を装着した補助梁21が、補助梁支持具4,4Aに仮置きされた状態を示す斜視図である。図10は、既存梁支持具5の構造例を示す断面図である。なお、図9では、理解を容易にするために、既存梁15が部分的に切断された状態が示されている。
(About the structural example and arrangement example of the existing beam support 5)
FIG. 9 is a perspective view showing a state where the auxiliary beam 21 on which the existing beam support 5 is mounted is temporarily placed on the auxiliary beam support 4, 4 </ b> A. FIG. 10 is a cross-sectional view showing a structural example of the existing beam support 5. In FIG. 9, a state in which the existing beam 15 is partially cut is shown for easy understanding.

図9に示されるように、本実施の形態における既存梁支持具5は、補助梁21の両端部が補助梁支持具4,4Aに仮置きされた状態において、既存梁15を下方から支持する支持面50を有している。支持面50は、補助梁21の上面210に沿って延び、幅方向一方側に張り出している。支持面50が補助梁21より張り出す方向は、補助梁支持具4が既存柱12,13より張り出す方向とは反対の方向である。つまり、補助梁支持具4は、既存柱12,13より幅方向他方側に張り出している。   As shown in FIG. 9, the existing beam support 5 in the present embodiment supports the existing beam 15 from below in a state where both ends of the auxiliary beam 21 are temporarily placed on the auxiliary beam supports 4 and 4A. A support surface 50 is provided. The support surface 50 extends along the upper surface 210 of the auxiliary beam 21 and projects to one side in the width direction. The direction in which the support surface 50 projects from the auxiliary beam 21 is opposite to the direction in which the auxiliary beam support 4 projects from the existing columns 12 and 13. That is, the auxiliary beam support 4 projects from the existing columns 12 and 13 to the other side in the width direction.

既存梁支持具5は、図10に示されるように、たとえば、各々が略L字形状を有する2つの支持部材51,52を含む。これらの支持部材51,52もまた、剛性を有する材料、たとえば鋼材により形成されている。第1の支持部材51は、支持面50が形成された水平部511と、水平部511に連結された垂直部512とを有する。水平部511の一部が、補助梁21の上面210に載置(当接)される。ここでは、水平部511のうち、補助梁21の上面210に載置される部分をベース部511a、水平部511のうち、補助梁21より幅方向一方側へ張り出した部分を張出部511bという。支持面50は、水平部511の上面であり、略水平方向に延在している。垂直部512は、補助梁21の幅方向他方側の側面211に沿って配置される。なお、図9および図10では、張出部511bの幅寸法L4は、既存梁15の幅寸法L3と略同一としているが、既存梁15の幅寸法より小さくてもよい。つまり、補助梁21が仮置きされた状態で、支持面50と既存梁15の下面150とが、少なくとも一部、当接(または対面)していればよい。   As shown in FIG. 10, the existing beam support 5 includes, for example, two support members 51 and 52 each having a substantially L shape. These support members 51 and 52 are also formed of a material having rigidity, for example, a steel material. The first support member 51 includes a horizontal portion 511 on which the support surface 50 is formed, and a vertical portion 512 connected to the horizontal portion 511. A part of the horizontal portion 511 is placed (contacted) on the upper surface 210 of the auxiliary beam 21. Here, the portion of the horizontal portion 511 that is placed on the upper surface 210 of the auxiliary beam 21 is referred to as a base portion 511a, and the portion of the horizontal portion 511 that protrudes from the auxiliary beam 21 to one side in the width direction is referred to as an extended portion 511b. . The support surface 50 is an upper surface of the horizontal portion 511 and extends in a substantially horizontal direction. The vertical portion 512 is disposed along the side surface 211 on the other side in the width direction of the auxiliary beam 21. 9 and 10, the width dimension L4 of the overhang portion 511b is substantially the same as the width dimension L3 of the existing beam 15, but may be smaller than the width dimension of the existing beam 15. That is, it is only necessary that at least a part of the support surface 50 and the lower surface 150 of the existing beam 15 abut (or face each other) in a state where the auxiliary beam 21 is temporarily placed.

第2の支持部材52も同様に、水平部522と、水平部522に連結された垂直部521とを有する。水平部522は、補助梁21の下面212に当接される。垂直部521は、補助梁21の幅方向他方側の側面211に沿って配置される。垂直部521は、少なくとも部分的に、第1の支持部材51の垂直部512と重なっており、これらの垂直部512,521のうちのいずれか一方(図10では垂直部512)が、補助梁21の側面211に当接する。   Similarly, the second support member 52 includes a horizontal portion 522 and a vertical portion 521 connected to the horizontal portion 522. The horizontal portion 522 is in contact with the lower surface 212 of the auxiliary beam 21. The vertical portion 521 is disposed along the side surface 211 on the other side in the width direction of the auxiliary beam 21. The vertical portion 521 at least partially overlaps the vertical portion 512 of the first support member 51, and one of these vertical portions 512 and 521 (the vertical portion 512 in FIG. 10) is an auxiliary beam. 21 abuts on the side surface 211 of the 21.

第1の支持部材51の垂直部512と第2の支持部材52の垂直部521とが重なった部分には、それぞれ複数の貫通穴514,524が形成されている。これらの貫通穴514,524に連結具71が貫通されることによって、第1の支持部材51と第2の支持部材52とが連結される。これにより、既存梁支持具5は、補助梁21の三方を取り囲んだ状態で、補助梁21に固定される。連結具71は補助梁21を突き刺しておらず、容易に取り外し可能である。具体的には、たとえば、貫通穴514,524は、内周面に螺旋状の溝が形成されたネジ穴であり、連結具71は、雄ネジである。   A plurality of through holes 514 and 524 are formed in portions where the vertical portion 512 of the first support member 51 and the vertical portion 521 of the second support member 52 overlap each other. The first support member 51 and the second support member 52 are connected by the connection tool 71 being passed through the through holes 514 and 524. Accordingly, the existing beam support 5 is fixed to the auxiliary beam 21 in a state of surrounding the three sides of the auxiliary beam 21. The connector 71 does not pierce the auxiliary beam 21 and can be easily removed. Specifically, for example, the through holes 514 and 524 are screw holes in which a spiral groove is formed on the inner peripheral surface, and the connector 71 is a male screw.

垂直部512の貫通穴514、および、垂直部521の貫通穴524は、ともに、上下方向に所定間隔(たとえば30mm間隔)で設けられている。これにより、様々な規格の補助梁21に対応することができる。なお、補助梁21の下面212と第2の支持部材52の水平部522との間に多少の隙間が生じる場合には、その隙間にパッキン等を挿入して、補助梁21が2つの支持部材51,52によって上下方向に挟持されるようにしてもよい。   Both the through holes 514 of the vertical portion 512 and the through holes 524 of the vertical portion 521 are provided at predetermined intervals (for example, 30 mm intervals) in the vertical direction. Thereby, it can respond to the auxiliary beam 21 of various standards. When a slight gap is generated between the lower surface 212 of the auxiliary beam 21 and the horizontal portion 522 of the second support member 52, packing or the like is inserted into the gap so that the auxiliary beam 21 has two support members. It may be sandwiched between 51 and 52 in the vertical direction.

なお、既存梁支持具5によって補助梁21の三方を取り囲むだけでは、既存梁支持具5は、張出部511b上の支持面50に既存梁15の荷重が加えられたときに、図10において時計方向に回転してしまう可能性がある。したがって、既存梁支持具5は、回転防止手段をさらに有していることが望ましい。本実施の形態では、たとえば、第2の支持部材52に、水平部522の幅方向他方側の端部より立ち上がる立上部523をさらに設けることで、既存梁支持具5の回転を防止することとしている。立上部523は、補助梁21の幅方向一方側の側面213に当接することが望ましい。   Note that the existing beam support 5 only has to surround the auxiliary beam 21 with the existing beam support 5 when the load of the existing beam 15 is applied to the support surface 50 on the overhanging portion 511b in FIG. There is a possibility of rotating clockwise. Therefore, it is desirable that the existing beam support 5 further includes rotation preventing means. In the present embodiment, for example, the second support member 52 is further provided with an upright portion 523 that rises from an end on the other side in the width direction of the horizontal portion 522, thereby preventing the existing beam support 5 from rotating. Yes. It is desirable that the upright portion 523 is in contact with the side surface 213 on one side in the width direction of the auxiliary beam 21.

既存梁支持具5は、第1の支持部材51の水平部511のうち張出部511bのみで既存梁15の荷重を支持する。そのため、張出部511bの下方には、図11に示すような補強部材53が設けられることが望ましい。補強部材53は、たとえば、第1の支持部材51の水平部511の張出部511bの下面に当接される当接部531と、補助梁21の幅方向一方側の側面213に当接される当接部532と、これらの当接部531,532に直交する直交部533とを含む。第1の支持部材51の水平部511における張出部511bと当接部531とに、連結具72が貫通されることによって、第1の支持部材51と補強部材53とが連結固定される。なお、張出部511bおよび当接部531にも、連結具72が貫通される貫通穴が予め形成されており、連結具72も、連結具71と同様に簡単に取り外し可能であるものとする。   The existing beam support 5 supports the load of the existing beam 15 only by the overhanging portion 511 b of the horizontal portion 511 of the first support member 51. Therefore, it is desirable to provide a reinforcing member 53 as shown in FIG. 11 below the overhang portion 511b. The reinforcing member 53 is in contact with, for example, the contact portion 531 that is in contact with the lower surface of the overhang portion 511b of the horizontal portion 511 of the first support member 51 and the side surface 213 on one side in the width direction of the auxiliary beam 21. The contact part 532 and the orthogonal part 533 orthogonal to these contact parts 531 and 532 are included. The first support member 51 and the reinforcing member 53 are connected and fixed by allowing the connecting tool 72 to pass through the protruding portion 511b and the contact portion 531 in the horizontal portion 511 of the first support member 51. It should be noted that the overhanging portion 511b and the abutting portion 531 are also formed with a through-hole through which the connecting tool 72 passes, and the connecting tool 72 can be easily removed similarly to the connecting tool 71. .

また、図11に示されるように、第1の支持部材51の張出部511bの先端部(幅方向一方側端部)には、既存梁15の下方への差し込みを容易にするために、斜め下方に延びる傾斜部513が設けられていてもよい。なお、図11に示す張出部511bの幅は、図10に示す幅よりも短く形成されている。   Further, as shown in FIG. 11, in order to facilitate the downward insertion of the existing beam 15 at the distal end portion (one end portion in the width direction) of the overhang portion 511 b of the first support member 51, An inclined portion 513 that extends obliquely downward may be provided. In addition, the width | variety of the overhang | projection part 511b shown in FIG. 11 is formed shorter than the width | variety shown in FIG.

(梁補強方法について)
ここで、本実施の形態における既存梁15の補強方法について説明する。図12は、本実施の形態における梁補強方法の工程順序を示すフローチャートである。なお、梁補強方法の説明において、特に補助梁支持具4,4Aを区別する必要がない場合には、単に補助梁支持具4と記す。
(About beam reinforcement method)
Here, the reinforcement method of the existing beam 15 in this Embodiment is demonstrated. FIG. 12 is a flowchart showing a process sequence of the beam reinforcing method in the present embodiment. In the description of the beam reinforcing method, the auxiliary beam support 4 is simply referred to as the auxiliary beam support 4 when it is not necessary to distinguish between the auxiliary beam supports 4 and 4A.

図12を参照して、はじめに、補助梁支持具4が、一対の既存柱12,13に対しそれぞれ固定される(工程P1)。本実施の形態では、典型的には、補助梁支持具4の受入れ部42の上端面420が、補助梁21の高さ寸法(図9の「L2」)と、既存梁支持具5の水平部511の厚み分と、支持金物6の天板部61の厚み分とを足し合わせた寸法以上、既存梁15の下面150より下方に配置される。補助梁支持具4は、たとえば、複数の固定具91(図2)が、ベース部41の表面側から貫通穴43を貫通するように既存柱12,13に打ち込まれることによって固定される。この場合、上記図3および図7に示したように、補助梁支持具4の受入れ部42のうち仮置き位置422の部分のみが、既存梁15の側方側へ張出される。   Referring to FIG. 12, first, the auxiliary beam support 4 is fixed to the pair of existing columns 12 and 13 (step P1). In the present embodiment, typically, the upper end surface 420 of the receiving portion 42 of the auxiliary beam support 4 has the height dimension of the auxiliary beam 21 (“L2” in FIG. 9) and the horizontal level of the existing beam support 5. It is arranged below the lower surface 150 of the existing beam 15 by at least the dimension obtained by adding the thickness of the portion 511 and the thickness of the top plate 61 of the support metal 6. The auxiliary beam support 4 is fixed by, for example, driving a plurality of fixtures 91 (FIG. 2) into the existing columns 12 and 13 so as to penetrate the through holes 43 from the surface side of the base portion 41. In this case, as shown in FIGS. 3 and 7, only the part of the temporary placement position 422 of the receiving part 42 of the auxiliary beam support 4 is projected to the side of the existing beam 15.

また、補助梁21の両端部に被支持部材としての支持金物6を固定する(工程P2)。支持金物6は、立板部62が奥行方向外側に位置するように、補助梁21の両端部に固定される。具体的には、たとえば、天板部61の貫通穴63を挿通する固定具によって、支持金物6が補助梁21の下面に固定される。   Further, the support hardware 6 as a supported member is fixed to both ends of the auxiliary beam 21 (process P2). The support hardware 6 is fixed to both ends of the auxiliary beam 21 so that the upright plate portion 62 is positioned on the outer side in the depth direction. Specifically, for example, the support hardware 6 is fixed to the lower surface of the auxiliary beam 21 by a fixture that is inserted through the through hole 63 of the top plate portion 61.

次に、補助梁21に、既存梁支持具5を取り付ける(工程P3)。既存梁支持具5は、たとえば、補助梁21の中央部(長手方向両端部以外の部分)であって、補助梁支持具4に補助梁21を仮置きした場合に中間柱14と接触しない部分に取り付けられる。既存梁支持具5を取り付ける具体的な手順は、たとえば次の通りである。図9および図10を参照して、まず、補助梁21の上方側より第1の支持部材51を被せ、補助梁21の下方側より第2の支持部材52を嵌め込む。第1の支持部材51と第2の支持部材52との嵌め込み順序は逆でもよい。その後、第2の支持部材52の水平部522が補助梁21の下面212に当接し、かつ、第2の支持部材52の垂直部521が第1の支持部材51の垂直部512に当接した状態で、連結具71を貫通穴514,524に嵌入する。これにより、支持部材51,52は、互いに連結され、補助梁21に固定される。なお、図11に示すように、第1の支持部材51に補強部材53が設けられる場合には、補強部材53は、支持部材51,52を連結した後に取り付けられてもよいし、第1の支持部材51を補助梁21の上方から被せる前に取り付けられてもよい。   Next, the existing beam support 5 is attached to the auxiliary beam 21 (process P3). The existing beam support 5 is, for example, a central portion of the auxiliary beam 21 (a portion other than both ends in the longitudinal direction) and a portion that does not contact the intermediate column 14 when the auxiliary beam 21 is temporarily placed on the auxiliary beam support 4. Attached to. A specific procedure for attaching the existing beam support 5 is, for example, as follows. 9 and 10, first, the first support member 51 is covered from the upper side of the auxiliary beam 21, and the second support member 52 is fitted from the lower side of the auxiliary beam 21. The fitting order of the first support member 51 and the second support member 52 may be reversed. Thereafter, the horizontal portion 522 of the second support member 52 contacts the lower surface 212 of the auxiliary beam 21, and the vertical portion 521 of the second support member 52 contacts the vertical portion 512 of the first support member 51. In the state, the connector 71 is inserted into the through holes 514 and 524. Thereby, the support members 51 and 52 are connected to each other and fixed to the auxiliary beam 21. In addition, as shown in FIG. 11, when the reinforcement member 53 is provided in the 1st support member 51, the reinforcement member 53 may be attached after connecting the support members 51 and 52, or 1st It may be attached before the support member 51 is covered from above the auxiliary beam 21.

次に、各補助梁支持具4の上端面420における仮置き位置422上に、補助梁21の端部が仮置きされる(工程P4)。具体的には、図13に示すように、まず、補助梁21の一方側端部が持ち上げられ、既存柱13に固定された補助梁支持具4の仮置き位置422に、補助梁21の一方側端部に固定された支持金物6が引掛けられる。このとき、支持金物6が、補助梁支持具4の上方から受入れ部42内に挿入されて引掛けられる。また、補助梁21の一方側端部は、仮置き位置422の端に寄せて仮置きされる。   Next, the end of the auxiliary beam 21 is temporarily placed on the temporary placement position 422 on the upper end surface 420 of each auxiliary beam support 4 (process P4). Specifically, as shown in FIG. 13, first, one end of the auxiliary beam 21 is lifted, and one of the auxiliary beams 21 is placed at the temporary placement position 422 of the auxiliary beam support 4 fixed to the existing column 13. A support metal 6 fixed to the side end is hooked. At this time, the support metal 6 is inserted into the receiving portion 42 from above the auxiliary beam support 4 and hooked. Further, the one end portion of the auxiliary beam 21 is temporarily placed close to the end of the temporary placement position 422.

その後、補助梁21の他方側端部が持ち上げられ、既存柱12に固定された補助梁支持具4Aの仮置き位置422に、補助梁21の他方側端部に固定された支持金物6が引掛けられる。このとき、支持金物6が、補助梁支持具4Aの側方から受入れ部42内に挿入されて引掛けられる。   Thereafter, the other end of the auxiliary beam 21 is lifted, and the support metal 6 fixed to the other end of the auxiliary beam 21 is pulled to the temporary placement position 422 of the auxiliary beam support 4A fixed to the existing column 12. It is hung. At this time, the support hardware 6 is inserted and hooked into the receiving portion 42 from the side of the auxiliary beam support 4A.

補助梁21が補助梁支持具4上に仮置きされた状態では、補助梁21は、既存梁15よりも側方側(幅方向他方側)に位置しており、既存梁支持具5の張出部511b上の支持面50は、既存梁15の下面150に当接している。このときの状態が、図14に示されている。なお、補助梁支持具4の設置高さ等によっては、既存梁支持具5の支持面50が既存梁15の下面150に当接しないことも考えられるが、補助梁21を仮置きした段階では、支持面50が、少なくとも近接した位置にて既存梁15の下面150に対面しているだけでもよい。つまり、既存梁支持具5の支持面50は、中間柱14の撤去に伴い既存梁15が撓んだ場合にはじめて、既存梁15の下面150と当接するように配置されていてもよい。   In a state in which the auxiliary beam 21 is temporarily placed on the auxiliary beam support 4, the auxiliary beam 21 is located on the side side (the other side in the width direction) from the existing beam 15, and the tension of the existing beam support 5 is increased. The support surface 50 on the protruding portion 511b is in contact with the lower surface 150 of the existing beam 15. The state at this time is shown in FIG. Depending on the installation height of the auxiliary beam support 4 or the like, the support surface 50 of the existing beam support 5 may not come into contact with the lower surface 150 of the existing beam 15, but at the stage where the auxiliary beam 21 is temporarily placed. The support surface 50 may only face the lower surface 150 of the existing beam 15 at least at a close position. That is, the support surface 50 of the existing beam support 5 may be disposed so as to contact the lower surface 150 of the existing beam 15 only when the existing beam 15 is bent as the intermediate column 14 is removed.

本実施の形態では、この段階で、既存梁15および土台11に係合されていた中間柱14の上下端のホゾ(突起部)140を切り、中間柱14本体を既存梁15および土台11から切り離す(工程P5)。これにより、中間柱14と構造躯体との縁が切られる。なお、中間柱14のホゾ140が切られただけでは中間柱14は倒れないため、既存梁15の荷重は中間柱14によって支持されたままである。   In the present embodiment, at this stage, the hoses (projections) 140 at the upper and lower ends of the intermediate column 14 engaged with the existing beam 15 and the base 11 are cut, and the intermediate column 14 main body is removed from the existing beam 15 and the base 11. Separate (process P5). Thereby, the edge of the intermediate column 14 and the structural housing is cut. In addition, since the intermediate column 14 does not fall down only by cutting the boss 140 of the intermediate column 14, the load of the existing beam 15 remains supported by the intermediate column 14.

その後、仮置きされた補助梁21を、補助梁支持具4の正規位置421側に向けてスライド移動させながら、中間柱14を取り除く(工程P6)。当該工程については、図15を参照して具体的に説明する。図15(A)には、補助梁21が補助梁支持具4に仮置きされ、上記工程P5において中間柱14の上下端のホゾが切られた状態が、模式的に示されている。この状態で、作業者は、補助梁21の側面211を叩くなどして、補助梁21を既存梁15に隣接する位置(すなわち、既存梁15の真下)に移動させる。このとき、図15(B)に示されるように、既に構造躯体との縁が切られた中間柱14は、補助梁21によって、補助梁21の移動方向に徐々に押し出される。そのため、本実施の形態では、補助梁21が正規位置421へ近づくにつれて、既存梁15の荷重が、補助梁21に取り付けられた既存梁支持具5の支持面50に徐々に加えられることになる。本工程において補助梁21が正規位置421に移動された状態が、図16に示されている。この状態では、既存梁支持具5のベース部511a上の支持面50が既存梁15の下面150に当接している。   Thereafter, the intermediate pillar 14 is removed while the temporarily placed auxiliary beam 21 is slid and moved toward the normal position 421 side of the auxiliary beam support 4 (step P6). This process will be specifically described with reference to FIG. FIG. 15 (A) schematically shows a state in which the auxiliary beam 21 is temporarily placed on the auxiliary beam support 4 and the upper and lower ends of the intermediate column 14 are cut off in the step P5. In this state, the worker moves the auxiliary beam 21 to a position adjacent to the existing beam 15 (that is, directly below the existing beam 15) by hitting the side surface 211 of the auxiliary beam 21. At this time, as shown in FIG. 15B, the intermediate column 14 whose edge with the structural frame has already been cut is gradually pushed out by the auxiliary beam 21 in the moving direction of the auxiliary beam 21. Therefore, in this embodiment, as the auxiliary beam 21 approaches the normal position 421, the load of the existing beam 15 is gradually applied to the support surface 50 of the existing beam support 5 attached to the auxiliary beam 21. . FIG. 16 shows a state where the auxiliary beam 21 is moved to the normal position 421 in this step. In this state, the support surface 50 on the base portion 511 a of the existing beam support 5 is in contact with the lower surface 150 of the existing beam 15.

既存梁15の真下に補助梁21が配置されると、補助梁21から既存梁支持具5を取り外す(工程P7)。具体的には、既存梁支持具5を固定していた連結具71を抜き取り、第1の支持部材51と第2の支持部材52とを分解することによって、既存梁支持具5を補助梁21から取り外す。   When the auxiliary beam 21 is disposed directly below the existing beam 15, the existing beam support 5 is removed from the auxiliary beam 21 (process P7). Specifically, the connecting tool 71 that has fixed the existing beam support 5 is removed, and the first support member 51 and the second support member 52 are disassembled, whereby the existing beam support 5 is attached to the auxiliary beam 21. Remove from.

その後、補助梁21に固定された支持金物6と既存柱12,13とが固定される(工程P8)。具体的には、図16に示すように、補助梁支持具4,4Aの開口40を通して、支持金物6の貫通穴64に固定具92が打ち込まれる。支持金物6が固定されると、補助梁支持具4,4Aを既存柱12,13から取り外す(工程P9)。   Thereafter, the support hardware 6 fixed to the auxiliary beam 21 and the existing columns 12 and 13 are fixed (process P8). Specifically, as shown in FIG. 16, the fixture 92 is driven into the through hole 64 of the support metal 6 through the opening 40 of the auxiliary beam support 4, 4 </ b> A. When the support hardware 6 is fixed, the auxiliary beam supports 4 and 4A are removed from the existing columns 12 and 13 (process P9).

また、既存梁15および補助梁21の両側面に、側板22を取り付ける(工程P10)。つまり、側板22は、既存梁15と補助梁21とを一体的に連結するために、既存梁15と補助梁21とをまたぐように貼り付けられる。側板22の梁15,21への取り付けは、公知の手法により行われてよい。本実施の形態では、少なくとも既存梁支持具5を取り付けていた箇所に、既存梁支持具5の水平部511の厚み分、補助梁21の上面210と既存梁15の下面150との間に隙間が生じ得るが、側板22が取り付けられることによって、既存梁15と補助梁21とを確実に一体化することができる。   Further, the side plates 22 are attached to both side surfaces of the existing beam 15 and the auxiliary beam 21 (process P10). That is, the side plate 22 is pasted so as to straddle the existing beam 15 and the auxiliary beam 21 in order to integrally connect the existing beam 15 and the auxiliary beam 21. The side plate 22 may be attached to the beams 15 and 21 by a known method. In the present embodiment, there is a gap between the upper surface 210 of the auxiliary beam 21 and the lower surface 150 of the existing beam 15 at a position where the existing beam support 5 is attached at least in the thickness of the horizontal portion 511 of the existing beam support 5. However, when the side plate 22 is attached, the existing beam 15 and the auxiliary beam 21 can be reliably integrated.

なお、本実施の形態では、既存梁15および補助梁21の両側面に側板22を取り付けることとしたが、一方の側面にのみ側板22が取り付けられてもよい。あるいは、側板22を用いなくても、既存梁15と補助梁21との隙間をパッキン等によって埋めることによって両者を一体的に連結してもよい。あるいは、既存梁15と補助梁21とは、単純に、ボルトや公知の金物で連結されてもよい。   In the present embodiment, the side plate 22 is attached to both side surfaces of the existing beam 15 and the auxiliary beam 21, but the side plate 22 may be attached only to one side surface. Alternatively, without using the side plate 22, the gap between the existing beam 15 and the auxiliary beam 21 may be integrally connected by filling the gap with packing or the like. Alternatively, the existing beam 15 and the auxiliary beam 21 may be simply connected with a bolt or a known hardware.

また、補助梁21から既存梁支持具5を取り外すタイミングは、補助梁21を正規位置311に移動させた直後としたが、限定的ではない。たとえば、既存梁支持具5は、補助梁21と既存梁15とを一体的に連結する工程(P10)の後に取り外されてもよい。この場合、側板22によって両者を連結する場合には、既存梁支持具5に干渉しない位置に側板22を取り付ければよい。このように、既存梁支持具5以外の箇所においても既存梁15の荷重を支持できる状態としてから既存梁支持具5を取り外す場合、より安全に既存梁支持具5を取り外すこともできる。   Moreover, although the timing which removes the existing beam support tool 5 from the auxiliary beam 21 was immediately after moving the auxiliary beam 21 to the regular position 311, it is not limited. For example, the existing beam support 5 may be removed after the step (P10) of integrally connecting the auxiliary beam 21 and the existing beam 15. In this case, when both are connected by the side plate 22, the side plate 22 may be attached at a position that does not interfere with the existing beam support 5. As described above, when the existing beam support 5 is removed after the load of the existing beam 15 can be supported even at a place other than the existing beam support 5, the existing beam support 5 can be removed more safely.

上述のように、本実施の形態によれば、重量物である補助梁21を片方ずつ持ち上げて、補助梁21を仮置き位置に配置することができる。補助梁21が重量物であればあるほど補助梁21の両端部に分かれて同時に高所まで持ち上げて固定作業を行うことは不安定であり危険を伴っていたが、本実施の形態の補助梁支持具4を用いることで、少人数の作業員で安全に補助梁21の取り付けを行うことができる。   As described above, according to the present embodiment, the auxiliary beam 21 that is a heavy object can be lifted one by one, and the auxiliary beam 21 can be disposed at the temporary placement position. As the auxiliary beam 21 is heavier, it is unstable and dangerous to carry out the fixing work by dividing the auxiliary beam 21 into both ends and simultaneously lifting it up to a high place. By using the support 4, the auxiliary beam 21 can be safely attached by a small number of workers.

また、補助梁21の固定には、一般的なL字形状の支持金物6を用いることができ、補助梁支持具4は取り外して使い回すことができる。したがって、本実施の形態によれば、コスト面でも有利である。   The auxiliary beam 21 can be fixed by using a general L-shaped support metal 6 and the auxiliary beam support 4 can be removed and used. Therefore, according to the present embodiment, it is advantageous in terms of cost.

また、上述の梁補強方法によれば、補助梁21の両端部が仮置き位置422にて一対の既存柱12,13に支持された状態で、補助梁21に装着された既存梁支持具5の支持面50が既存梁15の下面150に当接または対面される。したがって、補助梁21の正規位置への移動途中に中間柱14が既存梁15を支持できなくなったとしても、既存梁支持具5を備えた補助梁21によって既存梁15を補強することができる。その結果、構造的に不安定な瞬間を作ることなく補強作業を行うことができる。なお、既存梁支持具5を備えた補助梁21を補助梁ユニットとして提供してもよい。これにより、既存梁15の補強をより容易に行うことができる。   Further, according to the beam reinforcing method described above, the existing beam support 5 attached to the auxiliary beam 21 in a state where both ends of the auxiliary beam 21 are supported by the pair of existing columns 12 and 13 at the temporary placement position 422. The support surface 50 is abutted against or opposed to the lower surface 150 of the existing beam 15. Therefore, even if the intermediate column 14 cannot support the existing beam 15 during the movement of the auxiliary beam 21 to the normal position, the existing beam 15 can be reinforced by the auxiliary beam 21 including the existing beam support 5. As a result, the reinforcement work can be performed without creating a structurally unstable moment. The auxiliary beam 21 provided with the existing beam support 5 may be provided as an auxiliary beam unit. Thereby, reinforcement of the existing beam 15 can be performed more easily.

本実施の形態における既存梁支持具5は、主に、簡易な構成の2つの支持部材51,52によって構成されており、補助梁21への脱着も簡単である。したがって、作業者の手間を軽減し、補強作業を効率良く行うことができる。   The existing beam support 5 in the present embodiment is mainly composed of two support members 51 and 52 having a simple configuration, and can be easily attached to and detached from the auxiliary beam 21. Therefore, the labor of the operator can be reduced and the reinforcement work can be performed efficiently.

また、既存梁支持具5も取り外して他の補強工事に転用できるため、補強工事のコストを抑えることもできる。   Moreover, since the existing beam support 5 can also be removed and used for other reinforcement work, the cost of the reinforcement work can be reduced.

(変形例1)
本実施の形態では、既存梁支持具5の水平部511の厚み分、既存梁15と補助梁21との間に隙間が空くため、側板22の貼り付けや、隙間を埋める作業が必要であった。しかし、図12の工程P3において補助梁21に既存梁支持具5を取り付ける前に、補助梁21に、既存梁支持具5の水平部511の厚み分、切欠きを設ける工程をさらに追加してもよい。この場合の補助梁21の例が図17に示されている。図17は、本発明の実施の形態の変形例1に係る補助梁21を模式的に示す図である。
(Modification 1)
In the present embodiment, a gap is created between the existing beam 15 and the auxiliary beam 21 by the thickness of the horizontal portion 511 of the existing beam support 5, so that it is necessary to attach the side plate 22 or fill the gap. It was. However, before attaching the existing beam support 5 to the auxiliary beam 21 in the process P3 of FIG. 12, a step of providing notches in the auxiliary beam 21 by the thickness of the horizontal portion 511 of the existing beam support 5 is further added. Also good. An example of the auxiliary beam 21 in this case is shown in FIG. FIG. 17 is a diagram schematically showing the auxiliary beam 21 according to the first modification of the embodiment of the present invention.

図17(A)に示されるように、補助梁21の上面210側には、既存梁支持具5の厚み分の深さを有する切欠き部210aが設けられている。この場合、図12の工程P2において、図17(B)に示されるように、切欠き部210a内に、既存梁支持具5を取り付ける。そうすると、既存梁支持具5の支持面50と補助梁21の上面210とはフラットな状態となる。既存梁支持具5がこのように装着されると、補助梁21が正規位置311に移動された場合に、既存梁支持具5の支持面50のみが既存梁15の下面150に当接しているのではなく、補助梁21の上面210も既存梁15の下面150に当接した状態となる。したがって、補助梁21を正規位置311に移動した後の既存梁15の荷重は、補助梁21の上面210においても受けているため、既存梁支持具5の取り外しを容易にすることができる。また、この場合、既存梁15と補助梁21とを一体的に連結するための連結部材(たとえば側板22)を設けなくてもよい。   As shown in FIG. 17A, a notch 210 a having a depth corresponding to the thickness of the existing beam support 5 is provided on the upper surface 210 side of the auxiliary beam 21. In this case, in the process P2 of FIG. 12, as shown in FIG. 17B, the existing beam support 5 is attached in the notch 210a. Then, the support surface 50 of the existing beam support 5 and the upper surface 210 of the auxiliary beam 21 are in a flat state. When the existing beam support 5 is mounted in this way, only the support surface 50 of the existing beam support 5 is in contact with the lower surface 150 of the existing beam 15 when the auxiliary beam 21 is moved to the normal position 311. Instead, the upper surface 210 of the auxiliary beam 21 is also in contact with the lower surface 150 of the existing beam 15. Therefore, since the load of the existing beam 15 after the auxiliary beam 21 is moved to the normal position 311 is received also on the upper surface 210 of the auxiliary beam 21, the existing beam support 5 can be easily removed. In this case, a connecting member (for example, the side plate 22) for integrally connecting the existing beam 15 and the auxiliary beam 21 may not be provided.

(変形例2)
本実施の形態では、既存柱12,13の両方に、補助梁支持具4が用いられることとしたが、少なくとも一方に補助梁支持具4が用いられればよい。その場合でも、他方の既存柱には、補助梁21に対し正規位置と仮置き位置とを提供する他の部材が用いられることが望ましい。図18は、本発明の実施の形態の変形例2において、他方側の既存柱12に固定される支持用部材3の構造例を示す図である。図18には、特願2013−1869989号として出願済の支持具が示されている。
(Modification 2)
In the present embodiment, the auxiliary beam support 4 is used for both of the existing columns 12 and 13, but the auxiliary beam support 4 may be used for at least one of them. Even in such a case, it is desirable to use another member that provides a normal position and a temporary placement position for the auxiliary beam 21 for the other existing pillar. FIG. 18 is a diagram illustrating a structure example of the support member 3 fixed to the existing pillar 12 on the other side in the second modification of the embodiment of the present invention. FIG. 18 shows a support that has been filed as Japanese Patent Application No. 2013-1869989.

支持用部材3は、たとえば略L字形状を有しており、略水平に配置される板状部(以下「水平板部」という)31と、水平板部31に直交し、既存柱12に固定される板状部(以下「垂直板部」という)32とを含む。取り付け状態において、水平板部31の奥行方向端部が、垂直板部32の上端部に連結されている。支持用部材3は、剛性を有する材料、たとえば鋼材により形成されている。   The supporting member 3 has, for example, a substantially L-shape, and is arranged in a substantially horizontal plate-like portion (hereinafter referred to as “horizontal plate portion”) 31, and orthogonal to the horizontal plate portion 31. And a plate-like portion (hereinafter referred to as “vertical plate portion”) 32 to be fixed. In the attached state, the end in the depth direction of the horizontal plate portion 31 is connected to the upper end portion of the vertical plate portion 32. The supporting member 3 is made of a material having rigidity, for example, a steel material.

水平板部31が、補助梁21の高さ寸法と既存梁支持具5の水平部511の厚み分とを足し合わせた寸法以上、既存梁15の下面より下方に配置される。支持用部材3における水平板部31の上面(すなわち水平面)310は、補助梁21の他方側端部が本置きされる正規位置311と、補助梁21の他方側端部が仮置きされる仮置き位置312とを有している。水平板部31の正規位置311が、既存梁15の下面に対向するように配置され、仮置き位置312が、既存梁15よりも側方(前方側)に突出するように配置されている。水平板部31の正規位置311、および、垂直板部32の既存柱12への当接部分には、固定具93が挿通される複数の貫通穴34が設けられている。水平板部31における、仮置き位置312側の幅方向端縁には、仮置き位置312からの補助梁21の転倒を防止するために、上面310から立ち上がる立上片35が設けられている。   The horizontal flat plate portion 31 is disposed below the lower surface of the existing beam 15 by at least the dimension obtained by adding the height of the auxiliary beam 21 and the thickness of the horizontal portion 511 of the existing beam support 5. The upper surface (that is, the horizontal plane) 310 of the horizontal plate portion 31 in the supporting member 3 is a normal position 311 where the other side end of the auxiliary beam 21 is placed in a main position and a temporary position where the other side end of the auxiliary beam 21 is temporarily placed. And a placement position 312. The normal position 311 of the horizontal plate portion 31 is disposed so as to face the lower surface of the existing beam 15, and the temporary placement position 312 is disposed so as to protrude to the side (front side) from the existing beam 15. A plurality of through holes 34 through which the fixtures 93 are inserted are provided at the normal position 311 of the horizontal plate portion 31 and the contact portion of the vertical plate portion 32 with the existing column 12. In the horizontal flat plate portion 31, a rising edge 35 rising from the upper surface 310 is provided at an edge in the width direction on the temporary placement position 312 side in order to prevent the auxiliary beam 21 from falling from the temporary placement position 312.

このような支持用部材3が用いられる場合、補助梁21の他方側端部が、仮置き位置312から正規位置311にスライドされた後に、補助梁21の他方側端部と支持用部材3とが直接固定される。たとえば、固定具が、水平板部31の下面側から正規位置311の貫通穴34を貫通するように補助梁21の下面に打ち込まれることによって、両者が固定されればよい。   When such a supporting member 3 is used, after the other end portion of the auxiliary beam 21 is slid from the temporary placement position 312 to the normal position 311, the other end portion of the auxiliary beam 21 and the supporting member 3 Is fixed directly. For example, both may be fixed by driving the fixing tool into the lower surface of the auxiliary beam 21 so as to penetrate the through hole 34 at the normal position 311 from the lower surface side of the horizontal plate portion 31.

(他の変形例)
本実施の形態では、補助梁21の移動に伴って中間柱14が取り除かれる。そのため、図12の工程P4において補助梁21が仮置きされた段階では、既存梁支持具5の支持面50は、既存梁15の下面150に当接または対面していなくてもよい。具体的には、たとえば、補助梁支持具4の仮置き位置422の幅が、補助梁21の幅寸法よりも大きく、補助梁21が、仮置き位置422の端に位置しているような場合には、既存梁支持具5の支持面50は、既存梁15の下面150に当接または対面していなくてもよい。すなわち、既存梁支持具5の支持面50は、補助梁21が既存梁15の真下(正規位置421)から幅方向他方側にずれた位置(上下方向に重ならない位置)にある場合に、既存梁15の下面150と当接または対面するように、補助梁21よりも幅方向一方側に少しでも張り出していればよい。
(Other variations)
In the present embodiment, the intermediate column 14 is removed as the auxiliary beam 21 moves. Therefore, at the stage where the auxiliary beam 21 is temporarily placed in the process P4 of FIG. 12, the support surface 50 of the existing beam support 5 may not contact or face the lower surface 150 of the existing beam 15. Specifically, for example, when the width of the temporary placement position 422 of the auxiliary beam support 4 is larger than the width dimension of the auxiliary beam 21 and the auxiliary beam 21 is located at the end of the temporary placement position 422. In other words, the support surface 50 of the existing beam support 5 may not contact or face the lower surface 150 of the existing beam 15. In other words, the support surface 50 of the existing beam support 5 is existing when the auxiliary beam 21 is located at a position shifted from the position just below the existing beam 15 (regular position 421) to the other side in the width direction (position not overlapping in the vertical direction). It suffices that the beam 15 protrudes slightly to one side in the width direction from the auxiliary beam 21 so as to contact or face the lower surface 150 of the beam 15.

また、本実施の形態では、補助梁21を正規位置421に移動した後、既存梁支持具5を取り外すこととした。しかし、補強工事後に、補助梁21が天井によって隠される場合などにおいては、既存梁支持具5を補助梁21に取り付けたままとしてもよい。また、補助梁支持具4も、既存柱12,13に取り付けたままとしてもよい。   In the present embodiment, the existing beam support 5 is removed after the auxiliary beam 21 is moved to the normal position 421. However, when the auxiliary beam 21 is hidden by the ceiling after the reinforcement work, the existing beam support 5 may be left attached to the auxiliary beam 21. Further, the auxiliary beam support 4 may be left attached to the existing columns 12 and 13.

また、本実施の形態では、既存梁支持具5は、取り外しを容易にするために2つの支持部材51,52を含むこととしたが、上記のように特に取り外しを意図しない場合には、第2の支持部材52を含まなくてもよい。その場合、図10に示した簡単に取り外し可能な連結具71に代えて、固定具や接着剤など簡単に取り外しができない接合部材が用いられてもよい。たとえば固定具を用いる場合には、固定具が、第1の支持部材51の垂直部512の貫通穴524を貫通して補助梁21の側面211に打ち込まれることによって、既存梁支持具5が補助梁21に固定されてもよい。または、第1の支持部材51の水平部511におけるベース部511aと補助梁21の上面210とが固定具等によって固定されてもよい。後者の場合、第1の支持部材51は、垂直部512を含まず、水平部511のみによって構成されてもよい。なお、いずれの場合においても、水平部511における張出部511bを補強するための補強部材53が設けられることが望ましい。   In the present embodiment, the existing beam support 5 includes the two support members 51 and 52 in order to facilitate the removal. However, as described above, when the removal is not particularly intended, The two support members 52 may not be included. In that case, instead of the easily detachable connector 71 shown in FIG. 10, a joining member that cannot be easily removed, such as a fixture or an adhesive, may be used. For example, when using a fixing tool, the fixing tool penetrates the through hole 524 of the vertical portion 512 of the first support member 51 and is driven into the side surface 211 of the auxiliary beam 21, thereby assisting the existing beam support tool 5. It may be fixed to the beam 21. Alternatively, the base portion 511a in the horizontal portion 511 of the first support member 51 and the upper surface 210 of the auxiliary beam 21 may be fixed by a fixture or the like. In the latter case, the first support member 51 may include only the horizontal portion 511 without including the vertical portion 512. In any case, it is desirable to provide a reinforcing member 53 for reinforcing the overhanging portion 511b in the horizontal portion 511.

また、本実施の形態では、補助梁21が既存梁15の真下に、両者が上下方向に完全に重なった状態で固定されることとしたが、上下方向において少なくとも一部が重なっていれば、これらは完全に重なっていなくてもよい。つまり、補助梁支持具4の正規位置421が、既存梁15の下方に、幅方向において既存梁15の下面150と少なくとも一部対面するように、位置していればよい。したがって、補助梁21は、既存梁15の幅方向一方側または他方側に、はみ出した状態で固定されてもよい。   Further, in the present embodiment, the auxiliary beam 21 is fixed immediately below the existing beam 15 in a state where both are completely overlapped in the vertical direction. However, if at least a part of the auxiliary beam 21 overlaps in the vertical direction, These do not have to overlap completely. That is, the normal position 421 of the auxiliary beam support 4 only needs to be positioned below the existing beam 15 so as to at least partially face the lower surface 150 of the existing beam 15 in the width direction. Therefore, the auxiliary beam 21 may be fixed in a protruding state on one side or the other side of the existing beam 15 in the width direction.

また、本実施の形態では、補助梁21の移動に伴って中間柱14が取り除かれることとしたが、補助梁21を移動させる前に(すなわち図12の工程P5において)、中間柱14を完全に取り除いておいてもよい。中間柱14が取り除かれると、それまで中間柱14が支持していた既存梁15の荷重が、既存梁支持具5の支持面50に加えられる。この場合、補助梁21は、既存梁支持具5の支持面50により既存梁15の支持状態が保たれたまま、移動させられる。   In the present embodiment, the intermediate column 14 is removed along with the movement of the auxiliary beam 21. However, before the auxiliary beam 21 is moved (that is, in step P5 in FIG. 12), the intermediate column 14 is completely removed. It may be removed. When the intermediate column 14 is removed, the load of the existing beam 15 that has been supported by the intermediate column 14 is applied to the support surface 50 of the existing beam support 5. In this case, the auxiliary beam 21 is moved while the support state of the existing beam 15 is maintained by the support surface 50 of the existing beam support 5.

また、本実施の形態では、補助梁21の端部を片方ずつ持ち上げて、支持金物6を補助梁支持具4の仮置き位置422に載置することとしたが、補助梁21の重量等によっては、補助梁21の両端部を同時に持ち上げて補助梁支持具4の仮置き位置422に載置してもよい。   In the present embodiment, the end of the auxiliary beam 21 is lifted one by one, and the support hardware 6 is placed at the temporary placement position 422 of the auxiliary beam support 4. The both ends of the auxiliary beam 21 may be lifted simultaneously and placed at the temporary placement position 422 of the auxiliary beam support 4.

なお、上記実施の形態では、補助梁21の両端部は、一対の既存柱12,13間に配置されることとしたが、既存梁15の両端部に連結された一対の既存躯体部間に配置されていれば、既存柱12,13間でなくてもよい。この場合、各実施の形態において既存柱12,13に固定された部材は、一対の既存躯体部の対向面(内側面)に固定されていればよい。一対の既存躯体部は、互いに対向する対向面(内側面)を有しており、既存柱に加え、たとえば既存梁を含む。具体的には、たとえば上述の既存梁16,17が下方側に長い場合には、補助梁支持具4は、既存梁16,17に固定されてもよい。   In the above embodiment, both ends of the auxiliary beam 21 are arranged between the pair of existing columns 12 and 13, but between the pair of existing frame parts connected to both ends of the existing beam 15. If it is arranged, it may not be between the existing pillars 12 and 13. In this case, the member fixed to the existing pillars 12 and 13 in each embodiment should just be fixed to the opposing surface (inner surface) of a pair of existing housing part. The pair of existing frame portions have opposing surfaces (inner side surfaces) that face each other, and include, for example, existing beams in addition to the existing columns. Specifically, for example, when the above-described existing beams 16 and 17 are long downward, the auxiliary beam support 4 may be fixed to the existing beams 16 and 17.

今回開示された実施の形態はすべての点で例示であって制限的なものではないと考えられるべきである。本発明の範囲は上記した説明ではなくて特許請求の範囲によって示され、特許請求の範囲と均等の意味および範囲内でのすべての変更が含まれることが意図される。   The embodiment disclosed this time should be considered as illustrative in all points and not restrictive. The scope of the present invention is defined by the terms of the claims, rather than the description above, and is intended to include any modifications within the scope and meaning equivalent to the terms of the claims.

3 支持用部材、4,4A 補助梁支持具(支持具)、5 既存梁支持具、6 支持金物(被支持部材)、11 土台、12,13 既存柱、14 中間柱(既存柱)、15,16,17 既存梁、21 補助梁、22 側板、31 水平板部、32 垂直板部、40,40A 開口、41 ベース部、42 受入れ部、44 底壁、45 立壁、50 支持面、51 第1の支持部材、52 第2の支持部材、53 補強部材、61 天板部、62 立板部、71,72 連結具、91,92,93 固定具、210a 切欠き部、311,421 正規位置、312,422 仮置き位置、511,522 水平部、512,521 垂直部、513 傾斜部、523 立上部、531,532 当接部、533 直交部。   3 Support members, 4, 4A Auxiliary beam support (support), 5 Existing beam support, 6 Support hardware (supported member), 11 Base, 12, 13 Existing column, 14 Intermediate column (existing column), 15 , 16, 17 Existing beam, 21 Auxiliary beam, 22 Side plate, 31 Horizontal plate portion, 32 Vertical plate portion, 40, 40A Opening, 41 Base portion, 42 Receiving portion, 44 Bottom wall, 45 Standing wall, 50 Support surface, 51 First 1 support member, 52 second support member, 53 reinforcing member, 61 top plate portion, 62 upright plate portion, 71, 72 connecting tool, 91, 92, 93 fixing tool, 210a notch, 311, 421 normal position , 312, 422 Temporary placement position, 511, 522 horizontal part, 512, 521 vertical part, 513 inclined part, 523 upright part, 531, 532 contact part, 533 orthogonal part.

Claims (10)

建物における既存梁を補助梁によって補強する方法であって、
前記既存梁に連結され、互いに離れて配置された一対の既存躯体部のうちの少なくともいずれか一方の既存躯体部に、前記補助梁の幅寸法以上の幅を有し、前記補助梁に対して仮置き位置と正規位置とを提供する支持具を取り付ける工程と、
前記補助梁の端部に、前記支持具によって支持される被支持部材を取り付ける工程と、
前記支持具の前記仮置き位置に、前記補助梁に取り付けられた前記被支持部材を仮置きする工程と、
前記補助梁に取り付けられた前記被支持部材を、前記支持具の前記仮置き位置から前記正規位置にスライドさせることによって、前記補助梁を前記既存梁に隣接する位置に移動させる工程とを備える、梁補強方法。
A method of reinforcing an existing beam in a building with an auxiliary beam,
At least one of the pair of existing frame parts connected to the existing beam and arranged apart from each other has a width equal to or greater than the width dimension of the auxiliary beam, with respect to the auxiliary beam. Attaching a support that provides a temporary position and a normal position;
Attaching a supported member supported by the support to the end of the auxiliary beam;
Temporarily placing the supported member attached to the auxiliary beam at the temporary placement position of the support;
Moving the auxiliary beam to a position adjacent to the existing beam by sliding the supported member attached to the auxiliary beam from the temporary placement position of the support to the regular position; Beam reinforcement method.
前記支持具の前記正規位置は、前記既存梁の下方に位置し、
前記補助梁に取り付けられた前記被支持部材が前記正規位置に配置された状態で、前記既存躯体部と前記被支持部材とを固定具によって固定する工程をさらに備える、請求項1に記載の梁補強方法。
The regular position of the support is located below the existing beam,
The beam according to claim 1, further comprising a step of fixing the existing housing part and the supported member with a fixture in a state where the supported member attached to the auxiliary beam is disposed at the regular position. Reinforcement method.
前記支持具は、前記被支持部材が前記正規位置に位置するときに、前記固定具を露出させる開口を有しており、
前記固定する工程では、前記支持具の前記開口を通して、前記固定具を前記被支持部材に打ち込む、請求項2に記載の梁補強方法。
The support has an opening that exposes the fixture when the supported member is located at the regular position;
The beam reinforcing method according to claim 2, wherein in the fixing step, the fixing tool is driven into the supported member through the opening of the support tool.
前記支持具は、前記既存躯体部に当接される部分を有するベース部と、前記ベース部に連結され、前記被支持部材を受入れる受入れ部とを含み、
前記受入れ部のうち前記既存躯体部の内側面に対面する部分に、前記開口が設けられている、請求項3に記載の梁補強方法。
The support includes a base portion having a portion that comes into contact with the existing housing portion, and a receiving portion that is connected to the base portion and receives the supported member,
The beam reinforcement method according to claim 3, wherein the opening is provided in a portion of the receiving portion that faces an inner surface of the existing housing portion.
前記被支持部材は、前記補助梁に固定される天板部と、前記天板部より下方に延びる立板部とを含み、
前記支持部の前記受入れ部は、前記立板部の厚み分、前記既存躯体部から離れて配置され、かつ、前記立板部の上下寸法以上の長さを有する立壁を含む、請求項4に記載の梁補強方法。
The supported member includes a top plate portion fixed to the auxiliary beam, and a standing plate portion extending downward from the top plate portion,
The receiving portion of the support portion includes a standing wall that is disposed apart from the existing housing portion by the thickness of the standing plate portion and has a length that is equal to or greater than the vertical dimension of the standing plate portion. The beam reinforcement method as described.
前記仮置きする工程は、
前記補助梁の一方の端部を持ち上げて、一方側の前記支持具の仮置き位置に、前記補助梁の一方の端部に取り付けられた一方側の前記被支持部材を引掛ける工程と、
前記一方側の支持具の前記仮置き位置に前記一方側の被支持部材を引掛けた状態で、前記補助梁の他方の端部を持ち上げる工程とを含む、請求項1〜5のいずれかに記載の梁補強方法。
The temporary placing step includes
Lifting one end of the auxiliary beam and hooking the supported member on one side attached to the one end of the auxiliary beam to the temporary placement position of the support on one side; and
A step of lifting the other end of the auxiliary beam in a state in which the supported member on the one side is hooked on the temporary placement position of the support on the one side. The beam reinforcement method as described.
前記支持具を取り付ける工程では、前記一対の既存躯体部の双方に前記支持具を取り付け、
前記一方側の支持具の仮置き位置の幅は、前記補助梁の他方の端部に取り付けられた他方側の前記被支持部材が仮置きされる他方側の前記支持具の仮置き位置の幅よりも長く、
前記仮置きする工程は、前記補助梁の他方の端部を持ち上げた後、前記他方側の支持具の側方から前記他方側の被支持部材を挿入して、前記他方側の被支持部材を前記他方側の支持具の仮置き位置に仮置きする工程をさらに含む、請求項6に記載の梁補強方法。
In the step of attaching the support tool, the support tool is attached to both of the pair of existing housing parts,
The width of the temporary placement position of the support on the one side is the width of the temporary placement position of the support on the other side where the supported member on the other side attached to the other end of the auxiliary beam is temporarily placed. Longer than
In the temporary placing step, after the other end of the auxiliary beam is lifted, the supported member on the other side is inserted from the side of the support member on the other side, and the supported member on the other side is inserted. The beam reinforcing method according to claim 6, further comprising a step of temporarily placing the temporary support at the temporary support position on the other side.
前記補助梁には、前記補助梁の上面に沿って延び、幅方向一方側に張り出す支持面を有する既存梁支持具が予め取り付けられており、
前記補助梁を移動させる工程において、前記既存梁支持具の支持面が前記既存梁の下面に当接または対面した状態で、前記一対の既存躯体部の中間に位置し、前記既存梁を支持していた中間柱を前記既存梁から取り除く、請求項1〜7のいずれかに記載の梁補強方法。
The auxiliary beam is attached in advance with an existing beam support having a support surface that extends along the upper surface of the auxiliary beam and projects to one side in the width direction.
In the step of moving the auxiliary beam, the support surface of the existing beam support member is positioned in the middle of the pair of existing frame portions with the support surface of the existing beam being in contact with or facing the lower surface of the existing beam, and supports the existing beam. The beam reinforcing method according to claim 1, wherein an intermediate pillar that has been removed is removed from the existing beam.
建物における既存梁を補助梁によって補強する構造であって、
前記既存梁に連結され、互いに離れて配置された一対の既存躯体部と、
前記一対の既存躯体部のうちの少なくともいずれか一方の既存躯体部に取り付けられ、前記補助梁の幅寸法以上の幅を有し、前記補助梁に対して仮置き位置と正規位置とを提供する支持具と、
前記補助梁の端部に取り付けられ、前記支持具によって支持される被支持部材とを備え、
前記被支持部材は、前記支持具の前記正規位置に配置された状態で、その位置が固定されている、梁補強構造。
A structure in which existing beams in a building are reinforced by auxiliary beams,
A pair of existing housing parts connected to the existing beams and arranged apart from each other;
Attached to at least one of the pair of existing frame portions, has a width equal to or greater than the width of the auxiliary beam, and provides a temporary placement position and a normal position with respect to the auxiliary beam. A support,
A supported member attached to an end of the auxiliary beam and supported by the support;
The supported member is a beam reinforcing structure in which a position of the supported member is fixed in a state where the supported member is disposed at the regular position of the support tool.
建物における既存梁に連結された既存躯体部に取り付けられ、前記既存梁を補強するために配置される補助梁を支持するための支持具であって、
前記既存躯体部に当接される部分を有するベース部と、
前記ベース部に連結され、前記補助梁の端部に固定された被支持部材を受入れるための受入れ部とを備え、
前記受入れ部は、前記補助梁の幅寸法以上の幅を有し、前記補助梁に対して仮置き位置と正規位置とを提供するための載置面を含む、補助梁支持具。
A support tool for supporting an auxiliary beam, which is attached to an existing frame part connected to an existing beam in a building and arranged to reinforce the existing beam,
A base portion having a portion in contact with the existing housing portion;
A receiving portion connected to the base portion and receiving a supported member fixed to an end portion of the auxiliary beam;
The receiving part has a width equal to or larger than a width dimension of the auxiliary beam, and includes a mounting surface for providing a temporary placement position and a normal position with respect to the auxiliary beam.
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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011052485A (en) * 2009-09-03 2011-03-17 Sumitomo Fudosan Kk Reinforcing beam receiving metal fittings
JP2015055034A (en) * 2013-09-10 2015-03-23 大和ハウス工業株式会社 Beam reinforcement structure and method, and support for auxiliary beam

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011052485A (en) * 2009-09-03 2011-03-17 Sumitomo Fudosan Kk Reinforcing beam receiving metal fittings
JP2015055034A (en) * 2013-09-10 2015-03-23 大和ハウス工業株式会社 Beam reinforcement structure and method, and support for auxiliary beam

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