JP2023016525A - Renovation method of beams and pillars of an outside corner - Google Patents

Renovation method of beams and pillars of an outside corner Download PDF

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JP2023016525A
JP2023016525A JP2021120894A JP2021120894A JP2023016525A JP 2023016525 A JP2023016525 A JP 2023016525A JP 2021120894 A JP2021120894 A JP 2021120894A JP 2021120894 A JP2021120894 A JP 2021120894A JP 2023016525 A JP2023016525 A JP 2023016525A
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shaft
wall
pillars
pillar
supported
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JP7416022B2 (en
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通明 坂上
Michiaki Sakagami
將揮 川元
Masaki Kawamoto
守 佐藤
Mamoru Sato
晴菜 澤山
Haruna Sawayama
浩幸 斉藤
Hiroyuki Saito
昌也 岩本
Masaya Iwamoto
俊之 渋谷
Toshiyuki Shibuya
健 神山
Takeshi Kamiyama
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Sekisui House Ltd
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Sekisui House Ltd
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Abstract

The renovation method of beams and pillars of an outside corner includes: in an existing building 1, which has a first wall 2 and a second wall 3 forming an outside corner, multiple first pillars 6 erected inside first wall 2, multiple second pillars 7 erected inside first wall 3, a first beam 11, one end of which is supported from below by each first pillar 6, and a second beam 13, one end of which is supported from below by each second pillar 7, the steps: removing one or more first pillars 6 located in the middle and one or more second pillars 7 located in the middle; and bridging a long receiving beam 16 so as to support one end of the first beam 11 supported from below by the removed first pillar 6 and one end of the second beam 13 supported from below by the removed second pillar 7 from below.SELECTED DRAWING: Figure 4

Description

本発明は、出隅を形成する二つの壁の夫々の内部に立設する柱を撤去し、当該柱の夫々によって一端が支持されていた梁を補強する出隅部の梁と柱に関するリフォーム方法に関する。 The present invention is a renovation method relating to beams and columns at an outside corner, in which the pillars erected inside each of the two walls forming the outside corner are removed, and the beam whose one end is supported by each of the pillars is reinforced. Regarding.

住宅等の既存建築物の出隅を形成するように交わる二枚の壁に、新たに開口部を設ける、又は既に設けられている掃き出し窓等の開口部の幅を広げるリフォームがある。リフォーム対象である既存建築物の二つの壁の夫々の内部に少なくとも3本以上の軸柱が並ぶように立設して、当該軸柱によって一端が下方から支持される梁が架設されている場合、リフォームによって壁に設けられる開口部は、従来においては軸柱が立設していない位置に設けられたり、あるいは、隣り合う軸柱の間に収まる幅のものである。従って、軸柱が立設している場所に開口部を設けたい、又は隣り合う軸柱の間の距離よりも幅の広い開口部を設けたい場合には、設ける予定の開口部の邪魔になる軸柱を撤去する必要がある。そして、軸柱を撤去すると、その軸柱が支持していた梁の強度が低下してしまうので、当該梁を補強する作業も必要となる。既存建築物に設けられている梁を補強するための技術が、例えば、特許文献1及び特許文献2に記載されている。 There is a renovation that newly provides an opening in two walls that meet to form a corner of an existing building such as a house, or widens the width of an opening such as a sweep window that has already been provided. When at least three or more pillars stand side by side inside each of the two walls of the existing building to be renovated, and a beam whose one end is supported from below by the pillars is erected. The openings provided in the wall by remodeling are conventionally provided at positions where the pillars are not erected, or have a width that fits between adjacent pillars. Therefore, if you want to provide an opening in a place where the shaft pillars stand, or if you want to provide an opening that is wider than the distance between adjacent shaft pillars, it will interfere with the intended opening. Axle must be removed. When the shaft pillar is removed, the strength of the beam supported by the shaft pillar is lowered, so it is necessary to reinforce the beam. Techniques for reinforcing beams provided in existing buildings are described in Patent Document 1 and Patent Document 2, for example.

特開2008-190169号公報JP 2008-190169 A 特開2015-55034号公報JP 2015-55034 A

しかしながら、特許文献1及び特許文献2に記載されているような従来の梁の補強は、補強の対象となる梁が架け渡されている一対の軸柱の間の距離と略等しい長さの補強梁を補強の対象となる梁と平行になる姿勢で、梁の下面に沿わせるように設けることで梁を補強するというものであり、当該補強梁は、補強の対象となる梁が架け渡されている一対の軸柱に架け渡されている必要があり、梁の一端を支持する軸柱を撤去する場合の梁の補強には適用することができない。 However, the conventional reinforcement of beams as described in Patent Documents 1 and 2 has a length approximately equal to the distance between a pair of shaft pillars over which the beam to be reinforced is bridged. The beam is reinforced by placing the beam parallel to the beam to be reinforced and along the lower surface of the beam. It must be bridged over a pair of shaft pillars that support one end of the beam.

また、補強梁を軸柱以外の構造躯体に支持させ架設させ梁の下面に沿わすことで梁を補強しようとしたとしても、補強梁を補強対象である梁の下面に沿わせために、補強対象の梁が架設している天井又は上階の床を開放する必要があり、大掛かりな工事となる。 In addition, even if you try to reinforce the beam by supporting and erecting the reinforcing beam on the structural framework other than the shaft column and running it along the bottom surface of the beam, it is necessary to reinforce the beam in order to make the reinforcing beam along the bottom surface of the beam to be reinforced. It is necessary to open the ceiling where the target beam is erected or the floor of the upper floor, which is a large-scale construction.

さらに、出隅を形成する2つの壁の夫々の内部に立設する軸柱を撤去する場合、出隅を形成する2つの壁の一方の壁に立設する撤去対象の軸柱によって一端が支持され補強対象となる梁と、出隅を形成する2つの壁の他方の壁に立設する撤去対象の軸柱によって一端が支持され補強対象となる梁と、は、互いに交わるように架設されていることになる。そして、補強梁は、補強対象である梁の下面に沿って架設させる必要があるため、補強対象である2本の梁を補強する2本の補強梁は、互いに交わるように固定することができる形状であることが必要であり、補強作業中に2本の補強梁を交わるように固定させる作業が必要になる。 Furthermore, when removing the shaft pillar erected inside each of the two walls forming the external corner, one end is supported by the shaft pillar to be removed erected on one of the two walls forming the external corner. A beam to be reinforced and a beam to be reinforced, one end of which is supported by a shaft pillar to be removed erected on the other wall of the two walls forming the outward corner, are erected so as to intersect with each other. There will be Since it is necessary to construct the reinforcing beam along the lower surface of the beam to be reinforced, the two reinforcing beams that reinforce the two beams to be reinforced can be fixed so as to intersect each other. It is necessary to have a shape, and it is necessary to fix the two reinforcing beams so that they intersect during the reinforcing work.

本発明は上記事情に鑑みてなされたものであって、出隅を形成する2つの壁の一方の壁に立設する軸柱と、出隅を形成する2つの壁の他方の壁に立設する軸柱と、を撤去し、天井又は上階の床を開放することなく、撤去した2本の軸柱の夫々によって下方から一端が支持される2本の梁を補強するリフォーム方法を提供することを目的とする。 The present invention has been made in view of the above circumstances, and includes a shaft pillar erected on one of the two walls forming the external corner, and a shaft pillar erected on the other wall of the two walls forming the external corner. To provide a reforming method for removing a shaft pillar and reinforcing two beams one end of which is supported from below by each of the two removed shaft pillars without opening a ceiling or an upper floor. for the purpose.

上記課題を解決するために本発明に掛かる出隅部の梁と柱に関するリフォーム方法は、第一壁と、前記第一壁とで出隅を形成する第二壁と、前記第一壁に沿って一列に並ぶように当該第一壁の内部に立設する少なくとも3本以上の長尺な第一軸柱と、前記第二壁に沿って一列に並ぶように当該第二壁の内部に立設する少なくとも3本以上の長尺な第二軸柱と、一端が第一軸柱の夫々によって下方から支持され、前記第一壁から出隅の内側に向かって水平方向に伸びるように架設される複数の長尺な第一梁と、一端が第二軸柱の夫々によって下方から支持され、前記第二壁から出隅の内側に向かって水平方向に伸びるように架設される複数の長尺な第二梁と、を有する既存建築物おいて、一列に並ぶ複数の前記第一軸柱のうち、列の端に位置しない少なくとも1本以上の前記第一軸柱と、一列に並ぶ複数の前記第二軸柱のうち、列の端に位置しない少なくとも1本以上の前記第二軸柱と、を撤去する工程と、1本の受け梁を、第一壁の内部に当該第一壁に平行な水平方向に架設し、撤去した前記第一軸柱が下方から支持していた前記第一梁の一端を当該受け梁によって下方から支持させ、また、他の1本の受け梁を、第二壁の内部に当該第二壁に平行な水平方向に架設し、撤去した前記第二軸柱が下方から支持していた前記第二梁の一端を当該受け梁によって下方から支持させる工程と、を含むことを特徴とする。 In order to solve the above-mentioned problems, the renovation method related to the beam and column of the outside corner according to the present invention includes a first wall, a second wall that forms an outside corner with the first wall, and along the first wall At least three or more elongated first shaft pillars erected inside the first wall so as to line up in a line along the second wall, and stand inside the second wall so as to line up in a line along the second wall One end is supported from below by at least three or more elongated second shaft pillars and the first shaft pillars, and is constructed so as to extend horizontally from the first wall toward the inner side of the external corner. a plurality of long first beams, one end of which is supported from below by each of the second shaft pillars, and a plurality of long beams erected so as to extend horizontally from the second wall toward the inner side of the external corner In an existing building having a second beam, at least one or more of the first pillars that are not located at the end of the row among the plurality of first pillars lined up in a row, and a plurality of pillars lined up in a row a step of removing at least one or more of the second pillars that are not positioned at the end of the row among the second pillars; One end of the first beam that was supported from below by the removed first shaft column that was erected in a parallel horizontal direction is supported from below by the receiving beam, and another one of the receiving beams is replaced with the first beam. A step of supporting one end of the second beam, which was supported from below by the removed second shaft column, by the receiving beam, by installing the second beam inside the two walls in a horizontal direction parallel to the second wall; characterized by comprising

さらに、架設された前記受け梁の両端を、鉛直方向に長尺な部材である受け梁支持部材の上端によって夫々下方から支持し固定する工程を含むことを特徴とする。 Further, the method further includes a step of supporting and fixing both ends of the erected receiving beam from below by upper ends of receiving beam supporting members, which are members elongated in the vertical direction.

さらに、水平方向の支持部を有する受け梁支持部材を、撤去した前記第一軸柱を挟んでいた2本の前記第一軸柱と、撤去した前記第二軸柱を挟んでいた2本の前記第二軸柱と、に取付け固定し、当該受け梁支持部材によって前記受け梁の両端を夫々下方から支持し固定する工程を含むことを特徴とする。 Furthermore, the receiving beam support members having horizontal support portions were replaced by the two first shaft columns that sandwiched the removed first shaft column and the two that sandwiched the removed second shaft column. It is characterized by including a step of attaching and fixing to the second shaft pillar, and supporting and fixing both ends of the receiving beam by the receiving beam supporting members from below.

本発明に係る出隅部の梁と柱に関するリフォーム方法によると、第一壁の内部に当該第一壁に平行で水平方向に架設される1本の受け梁によって、補強対象である第一梁の一端を下方から支持し、第二壁の内部に当該第二壁に平行で水平方向に架設され他の1本の受け梁によって、補強対象である第二梁の一端を下方から支持するため、補強対象である第一梁と第二梁とは、当該第一梁の一端と、当該第二梁の一端と、を夫々の受け梁によって補強されることが可能となる。そのため、補強対象である第一梁と第二梁とが架かる天井又は上階の床面を開放する必要がない。
また、受け梁は、第一壁と第二壁との夫々の内部で当該第一壁と当該第二壁とに平行に架設されるため、補強対象である第一梁の一端を支持する受け梁と、補強対象である第二梁の一端を支持する受け梁と、が直交することがなく、2本の受け梁は互いに直交するように固定できる形状である必要がなく、複雑な部材及び複雑な工事を必要としない。
According to the reforming method for the beam and column at the outside corner according to the present invention, the first beam to be reinforced by one supporting beam that is installed horizontally in parallel with the first wall inside the first wall. To support one end of the second beam to be reinforced from below by another receiving beam that is installed horizontally in parallel to the second wall inside the second wall. As for the first beam and the second beam to be reinforced, one end of the first beam and one end of the second beam can be reinforced by respective receiving beams. Therefore, it is not necessary to open the ceiling or the floor surface of the upper floor over which the first beam and the second beam to be reinforced are spanned.
In addition, since the receiving beam is installed parallel to the first wall and the second wall inside the first wall and the second wall, the receiving beam supports one end of the first beam to be reinforced. The beam and the receiving beam that supports one end of the second beam to be reinforced do not intersect perpendicularly, and the two supporting beams do not need to have a shape that can be fixed so as to be perpendicular to each other. No complicated work required.

さらに、受け梁支持部材によって受け梁の両端の夫々を下方から支持することで、受け梁の鉛直方向の強度を増すことができる。また、受け梁支持部材は鉛直方向に長尺な部材であり、各受け梁の両端の夫々を下方から支持するため、撤去対象である第一軸柱を挟んでいた2本の第一軸柱と、撤去対象である第二軸柱を挟んでいた2本の第二軸柱と、に対して各受け梁を梁勝ちで架設することができる。 Furthermore, by supporting both ends of the receiving beam from below with the receiving beam supporting members, the strength of the receiving beam in the vertical direction can be increased. In addition, the supporting beam support member is a vertically elongated member, and supports both ends of each supporting beam from below. , and two second pillars sandwiching the second pillar to be removed, each receiving beam can be erected with a beam joint.

さらに、受け梁支持部材によって各受け梁の両端の夫々を下方から支持することで、受け梁の鉛直方向の強度を増すことができる。また、受け梁支持部材は水平方向に広がる板状の支持部を有し、撤去対象である第一軸柱を挟んでいた2本の第一軸柱と、撤去対象である第二軸柱を挟んでいた2本の第二軸柱と、に固定され、支持部によって各受け梁の両端の夫々を下方から支持するため、当該受け梁支持部材は、撤去対象である第一軸柱を挟んでいた2本の第一軸柱と、撤去対象である第二軸柱を挟んでいた2本の第二軸柱と、に対して各受け梁を梁勝ちで架設し固定することができる。 Furthermore, by supporting both ends of each of the receiving beams from below with the receiving beam supporting members, the strength of the receiving beams in the vertical direction can be increased. In addition, the receiving beam support member has a plate-shaped support part that spreads horizontally, and the two first pillars that sandwiched the first pillar to be removed and the second pillar to be removed were separated. It is fixed to the two second pillars that were sandwiched between them, and both ends of each of the receiving beams are supported from below by the supporting parts. Each of the receiving beams can be erected and fixed to the two first pillars that were left behind and the two second pillars that sandwiched the second pillar to be removed.

本発明の一実施形態に係る既存建築物の平面図である。1 is a plan view of an existing building according to one embodiment of the present invention; FIG. 本発明の一実施形態に係る既存建築物の側面図である。1 is a side view of an existing building according to an embodiment of the invention; FIG. 本発明の一実施形態に係る撤去対象である第一軸柱及び第二軸柱を撤去した様子を示す側面図である。FIG. 4 is a side view showing a state in which the first and second shaft columns to be removed according to the embodiment of the present invention are removed; 本発明の一実施形態に係る受け梁を架設した様子を示す側面図である。It is a side view which shows a mode that the support beam which concerns on one Embodiment of this invention was constructed. 本発明の他の実施形態に係る受け梁支持部材を示す図である。It is a figure which shows the receiving beam support member which concerns on other embodiment of this invention.

本発明に係る既存建築物1のリフォーム方法について、以下、図面を参照しつつ説明する。ただし、以下はあくまで本発明の一実施形態を例示的に示すものであり、本発明の範囲は以下の実施形態に限定されるものではなく、本発明の思想を逸脱しない範囲で適宜変更可能である。 A method for reforming an existing building 1 according to the present invention will be described below with reference to the drawings. However, the following merely exemplifies one embodiment of the present invention, and the scope of the present invention is not limited to the following embodiments, and can be changed as appropriate without departing from the spirit of the present invention. be.

まず、図1を基にリフォーム前の既存建築物1について説明する。図1は、リフォーム前の既存建築物1の構造躯体及び外壁の一部を見下ろした平面図であり、図2の(a)は図1に示したリフォーム前の既存建築物1の正面図であり、図2の(b)は図1に示したリフォーム前の既存建築物1の左側面図である。図1及び図2に示すように、本発明の一実施形態に係るリフォーム前の既存建築物1は、外壁である第一壁2と、第一壁2とで出隅を形成するように第一壁2に交わる外壁の第二壁3と、互いに間隔をあけて一列に並ぶように第一壁2の内部に立設する3本の鉛直方向に長尺な既存建築物1の構造躯体の一部である第一軸柱6と、互いに間隔をあけて一列に並ぶように第二壁3の内部に立設する3本の鉛直方向に長尺な既存建築物1の構造躯体の一部である第二軸柱7と、水平方向に長尺で、一端12が各第一軸柱6の上端によって下方から支持され、第一壁2から出隅の内側4に向かって第一壁2の面に垂直に伸びるように架設される3本の既存建築物1の構造躯体の一部である第一梁11と、水平方向に長尺で、一端14が各第二軸柱7によって下方から支持され、第二壁3から出隅の内側4に向かって第二壁3の面に垂直に伸びるように架設される3本の既存建築物1の構造躯体の一部である第二梁13と、を有している。 First, an existing building 1 before renovation will be described with reference to FIG. FIG. 1 is a plan view looking down on the structural framework and part of the outer wall of an existing building 1 before renovation, and FIG. 2(a) is a front view of the existing building 1 before renovation shown in FIG. FIG. 2(b) is a left side view of the existing building 1 before renovation shown in FIG. As shown in FIGS. 1 and 2, an existing building 1 before renovation according to an embodiment of the present invention has a first wall 2, which is an outer wall, and a first wall 2 so as to form an outward corner. The second wall 3 of the outer wall that intersects with the first wall 2, and the structural skeleton of the existing building 1 that is elongated in the vertical direction and stands inside the first wall 2 so as to be arranged in a line with a space between each other. Part of the first shaft pillar 6 and part of the structural skeleton of the existing building 1 which is vertically elongated and which are erected in a row in the second wall 3 so as to be spaced apart from each other. and a horizontally long second shaft pillar 7, one end 12 of which is supported from below by the upper end of each first shaft pillar 6, and the first wall 2 extending from the first wall 2 toward the inner side 4 of the outward corner. The first beam 11, which is part of the structural framework of the three existing buildings 1 erected so as to extend perpendicularly to the surface of the building, and the horizontally long one end 14 downwardly supported by each second shaft pillar 7 The second beam which is a part of the structural framework of the existing building 1, which is supported from the second wall 3 and extends perpendicularly to the surface of the second wall 3 from the second wall 3 toward the inner side 4 of the external corner 13 and .

ここで、構造躯体とは、既存建築物1を構成する梁や柱などの骨組みのことであり、出隅の内側4とは、出隅の鉛直方向断面を上から見たときに、第一壁2と第二壁3とによって形成される角度の小さい側の空間のことである。また、図1に示すように、第一軸柱6のうちの1本は、第一壁2と第二壁3とが交わり出隅を形成している箇所に立設されている隅軸柱8であり、隅軸柱8は第二軸柱7でもある。 Here, the structural frame refers to the frame such as beams and columns that make up the existing building 1, and the inside 4 of the outside corner is the first It is the space on the small angle side formed by the wall 2 and the second wall 3 . Also, as shown in FIG. 1, one of the first pillars 6 is a corner pillar erected at a portion where the first wall 2 and the second wall 3 intersect to form an outward corner. 8 and the corner post 8 is also the second post 7 .

そして、図2に示すように、隅軸柱8以外の第一軸柱6及び第二軸柱7は、鉛直方向に立設されるC形鋼と、当該C形鋼の上端部に設けられた第一梁11又は第二梁13とボルト接合するためのボルト孔を有する接続部と、を備える2本の軸柱部材9が、互いのC形鋼を背中合わせにしてウェブ同士をボルト接合することで構成されている。隅軸柱8は、鉛直方向に立設される等辺山形鋼と、当該等辺山形鋼の上端部に設けられた第一梁11とボルト接合するためのボルト孔を有する接続部と、を備える1本の隅用軸柱部材10に、2本の軸柱部材9の夫々のウェブを当接させるようにボルト接合することで構成されている。このとき、第一軸柱6及び第二軸柱7の夫々が有する軸柱部材9は、当該軸柱部材9のC型鋼の開放された面が隣り合う第一軸柱6又は第二軸柱7を向くようになされている。 Then, as shown in FIG. 2, the first shaft column 6 and the second shaft column 7 other than the corner shaft column 8 are the C-shaped steel erected in the vertical direction and the upper end portion of the C-shaped steel. and a connecting portion having a bolt hole for bolting to the first beam 11 or the second beam 13, and the webs are bolted to each other with the C-shaped steels of each other back to back. It consists of The corner post 8 is provided with an equilateral angle steel erected in the vertical direction, and a connecting portion having a bolt hole for bolting to the first beam 11 provided at the upper end of the equilateral angle steel. It is constructed by bolting so that the respective webs of the two shaft members 9 are brought into contact with the corner shaft member 10 of the book. At this time, the shaft pillar member 9 of each of the first shaft pillar 6 and the second shaft pillar 7 has the first shaft pillar 6 or the second shaft pillar where the open faces of the C-shaped steel of the shaft pillar member 9 are adjacent to each other. It is made to face 7.

また、図1及び図2に示すように、第一梁11及び第二梁13は、鉄骨造の梁として一般的に用いられているH形鋼で構成されており、第一梁11及び第二梁13の上フランジ、下フランジ及びウェブに、第一軸柱6若しくは第二軸柱7、他の梁およびブレースなどの構造躯体を接合するためのボルト孔を有している。そして、3本の第一梁11の夫々の一端12は、3本の第一軸柱6の夫々の上端によって下方から支持され且つ固定され、3本の第一梁11は、第一壁2の面に直角になるように出隅の内側4に向かって架設されている。さらに、2本の第二梁13の夫々の一端14は、隅軸柱8以外の2本の第二軸柱7の夫々の上端によって下方から支持され且つ固定され、異なる1本の第二梁13の一端14は、隅軸柱8によって支持され且つ固定されている第一梁11の一端12に固定されており、隅軸柱8によって支持される第一梁11の一端12に固定されることで、隅軸柱8によって支持され、3本の第二梁13は、第二壁3の面に直角になるように出隅の内側4に向かって架設されている。隅軸柱8以外の2本の第二軸柱7の夫々の上端によって下方から支持され且つ固定され、2本の当該第二梁13は、第一壁2の面に直角になるように出隅の内側4に向かって架設されている。このとき、第二梁13の他端15は、隅軸柱8の隣に立設する第一軸柱6によって一端12が支持されている第一梁11の側面に直交するように固定されている。 Moreover, as shown in FIGS. 1 and 2, the first beam 11 and the second beam 13 are made of H-shaped steel that is generally used as a steel-framed beam. The upper flanges, lower flanges and webs of the two beams 13 have bolt holes for joining structural frames such as the first or second shaft pillars 6, 7, other beams and braces. One end 12 of each of the three first beams 11 is supported and fixed from below by the upper ends of each of the three first shafts 6, and the three first beams 11 are attached to the first wall 2. It is erected toward the inner side 4 of the outside corner so as to be perpendicular to the surface of . Furthermore, one end 14 of each of the two second beams 13 is supported from below and fixed by the upper ends of each of the two second shaft posts 7 other than the corner shaft posts 8, so that one different second beam One end 14 of 13 is fixed to one end 12 of the first beam 11 supported and fixed by the corner post 8 and fixed to one end 12 of the first beam 11 supported by the corner post 8. Thus, the three second beams 13 are supported by the corner pillars 8 and extend toward the inside 4 of the outside corner so as to be perpendicular to the surface of the second wall 3 . The two second beams 13 are supported from below and fixed by the respective upper ends of the two second axles 7 other than the corner axles 8, and the two second beams 13 protrude perpendicularly to the plane of the first wall 2. It extends toward the inside 4 of the corner. At this time, the other end 15 of the second beam 13 is fixed so as to be perpendicular to the side surface of the first beam 11 whose one end 12 is supported by the first shaft pillar 6 erected next to the corner shaft 8. there is

本実施形態のリフォームは、第一壁2と第二壁3とに開口部を設けること、又は、第一壁2と第二壁3と撤去することで既存建築物1の間取りを変更すること、が目的であり、その目的のために邪魔になる、第一軸柱6と第二軸柱7とを撤去することと、第一軸柱6と第二軸柱7とを撤去することで、撤去した第一軸柱6によって支持されていた第一梁11の一端12と、撤去した第二軸柱7によって支持されていた第二梁13の一端14と、を補強することと、を行うものである。そして、一列に並ぶ3本の第一軸柱6のうち、列の端に位置しない1本の第一軸柱6すなわち3本の第一軸柱6のうち、真ん中に位置する第一軸柱6が撤去対象の第一軸柱6であり、一列に並ぶ3本の第二軸柱7のうち、列の端に位置しない1本の第二軸柱7すなわち3本の第二軸柱7のうち、真ん中に位置する第二軸柱7が撤去対象の第二軸柱7であり、撤去対象の第一軸柱6によって一端12が下方から支持される第一梁11が補強対象の第一梁11であり、撤去対象の第二軸柱7によって一端14が下方から支持される第二梁13が補強対象の第二梁13である。 The renovation of this embodiment is to change the layout of the existing building 1 by providing an opening in the first wall 2 and the second wall 3, or by removing the first wall 2 and the second wall 3. , is the purpose, and by removing the first shaft pillar 6 and the second shaft pillar 7, which are in the way for that purpose, and the first shaft pillar 6 and the second shaft pillar 7 , reinforcing one end 12 of the first beam 11 supported by the removed first axle 6 and one end 14 of the second beam 13 supported by the removed second axle 7; It is something to do. Among the three first shaft pillars 6 arranged in a row, one first shaft pillar 6 not positioned at the end of the row, that is, the first shaft pillar positioned in the middle among the three first shaft pillars 6 6 is the first shaft pillar 6 to be removed, and among the three second shaft pillars 7 arranged in a row, one second shaft pillar 7 that is not located at the end of the row, that is, the three second shaft pillars 7 Among them, the second shaft pillar 7 located in the middle is the second shaft pillar 7 to be removed, and the first beam 11 whose one end 12 is supported from below by the first shaft pillar 6 to be removed is the second shaft pillar to be reinforced. The second beam 13, which is one beam 11 and whose one end 14 is supported from below by the second shaft 7 to be removed, is the second beam 13 to be reinforced.

まず、撤去対象である第一軸柱6と第二軸柱7とを撤去するために、第一壁2と第二壁3とを開放する。そして、撤去対象である第一軸柱6と当該第一軸柱6によって一端12が支持される第一梁11と接合を解き、図3に示すように、撤去対象である第一軸柱6を撤去する。同様に、撤去対象である第二軸柱7と当該第二軸柱7によって一端14が支持される第二梁13と接合を解き、図3に示すように、撤去対象である第二軸柱7を撤去する。撤去対象である第一軸柱6を撤去する工程と、撤去対象である第二軸柱7を撤去する工程と、は順不同である。 First, the first wall 2 and the second wall 3 are opened in order to remove the first shaft column 6 and the second shaft column 7 to be removed. Then, the first shaft column 6 to be removed and the first beam 11 whose one end 12 is supported by the first shaft column 6 are disconnected, and as shown in FIG. to remove. Similarly, the second axle 7 to be removed and the second beam 13 whose one end 14 is supported by the second axle 7 are disconnected, and as shown in FIG. Remove 7. The step of removing the first shaft pillar 6 to be removed and the step of removing the second shaft pillar 7 to be removed are in no particular order.

また、必要に応じて、撤去対象である第一軸柱6と第二軸柱7とを撤去する前に、撤去対象である第一軸柱6によって下方から一端12が支持される第一梁11の長尺方向の中間部を下方から支持する図示しない仮設柱を仮設し、撤去対象である第二軸柱7によって下方から一端14が支持される第二梁13の長尺方向の中間部を下方から支持する図示しない仮設柱を仮設する等の第一梁11と第二梁13の仮補強を行う。第一梁11と第二梁13との仮補強は、撤去対象である第一軸柱6と第二軸柱7とを撤去することで、一端12の支持を失った第一梁11と一端14の支持を失った第二梁13とが、リフォーム中に崩落することや変形することなどを防止するためであり、撤去対象である第一軸柱6と第二軸柱7とを撤去しても第一梁11と第二梁13とが崩落することや変形することなどがなく、リフォーム中の既存建築物1の強度に影響しないことが当業者によって明らかである場合は、第一梁11と第二梁13との仮補強は、必須ではない。図3の(a)は第一軸柱6を撤去した後の既存建築物1の正面図であり、図3の(b)は第二軸柱7を撤去した後の既存建築物1の左側面図である。 In addition, if necessary, before removing the first shaft pillar 6 and the second shaft 7 to be removed, the first beam whose one end 12 is supported from below by the first shaft pillar 6 to be removed A temporary column (not shown) is temporarily installed to support the intermediate portion in the longitudinal direction of 11 from below, and the intermediate portion in the longitudinal direction of the second beam 13 is supported at one end 14 from below by the second shaft column 7 to be removed. Temporary reinforcement of the first beam 11 and the second beam 13 is performed by temporarily installing a temporary column (not shown) for supporting from below. Temporary reinforcement of the first beam 11 and the second beam 13 is performed by removing the first shaft pillar 6 and the second shaft 7, which are to be removed. This is to prevent the second beam 13, which has lost the support of 14, from collapsing or deforming during the renovation. If it is clear by a person skilled in the art that the first beam 11 and the second beam 13 will not collapse or deform even if the first beam 11 and the second beam 13 do not affect the strength of the existing building 1 being renovated, Temporary reinforcement of 11 and second beam 13 is not essential. FIG. 3(a) is a front view of the existing building 1 after removing the first axle 6, and FIG. 3(b) is the left side of the existing building 1 after removing the second axle 7. It is a plan view.

また、図3に示すように、撤去対象である第一軸柱6を挟む2本の第一軸柱6の夫々が有する軸柱部材9のうち、撤去対象である第一軸柱6側に位置する軸柱部材9を撤去する。同様に、撤去対象である第二軸柱7を挟む2本の第二軸柱7の夫々が有する軸柱部材9のうち、撤去対象である第二軸柱7側に位置する軸柱部材9を撤去する。これにより、後述する受け梁16を架け渡すためのスペースが空く。この工程は、後述する受け梁16を架設するために行うものであり、夫々の軸柱部材9を撤去する工程と、撤去対象である第一軸柱6と第二軸柱7とを撤去する工程と、は順不同である。 Further, as shown in FIG. 3, among the shaft column members 9 possessed by each of the two first shaft columns 6 sandwiching the first shaft column 6 to be removed, the first shaft column 6 side to be removed has Remove the located axle member 9 . Similarly, among the shaft members 9 of each of the two second shafts 7 sandwiching the second shaft 7 to be removed, the shaft member 9 located on the side of the second shaft 7 to be removed to remove. As a result, a space is created for spanning the support beams 16, which will be described later. This step is performed to construct a receiving beam 16, which will be described later, and includes a step of removing the respective shaft members 9 and a step of removing the first shaft pillar 6 and the second shaft pillar 7 to be removed. The order of the steps is random.

次に、図4の(a)に示すように、長尺なH形鋼である受け梁16を用いて第一梁11及び第二梁13を補強する。受け梁16は、当該受け梁16の上フランジ、下フランジ及びウェブには、第一軸柱6又は第二軸柱7、及び第一梁11又は第二梁13に当該受け梁16を接合させるためのボルト孔を有している。そして、受け梁16を、当該受け梁16の長尺方向が水平となり、第一壁2の面に平行になる姿勢で、補強対象である第一梁11の一端12を当該受け梁16の長尺方向の中間部の上フランジが下方から支持するように、当該受け梁16の両端17の夫々を、撤去対象である第一軸柱6を挟むように立設していた2本の第一軸柱6の残された軸柱部材9のウェブ及び隅用軸柱部材10に夫々当接させ、撤去対象である第一軸柱6を挟むように立設していた2本の第一軸柱6によって支持されている2本の第一梁11の一端12の夫々の下フランジのボルト孔に、受け梁16の上面の両端17の夫々に設けられているボルト孔を下方から重ね、ボルト接合によって接合する。図4の(a)は受け梁16を架設した後の既存建築物1の正面図であり、図4の(b)は受け梁16を架設した後の既存建築物1の左側面図である。 Next, as shown in (a) of FIG. 4, the first beam 11 and the second beam 13 are reinforced using a receiving beam 16 that is a long H-shaped steel. The bearing beam 16 joins the bearing beam 16 to the first axle 6 or the second axle 7 and the first beam 11 or the second beam 13 to the upper flange, the lower flange and the web of the bearing beam 16. It has bolt holes for Then, one end 12 of the first beam 11 to be reinforced is placed on the receiving beam 16 so that the longitudinal direction of the receiving beam 16 is horizontal and parallel to the surface of the first wall 2 . Both ends 17 of the support beam 16 are supported from below by the upper flange in the middle part in the shaku direction. The two first shafts that were set up so as to sandwich the first shaft 6 to be removed by contacting the web of the remaining shaft pillar member 9 of the shaft 6 and the corner shaft pillar member 10 respectively. The bolt holes provided at both ends 17 of the upper surface of the support beam 16 are superimposed on the bolt holes of the lower flanges of the ends 12 of the two first beams 11 supported by the pillars 6 from below. Join by joining. FIG. 4(a) is a front view of the existing building 1 after the support beam 16 has been erected, and FIG. 4(b) is a left side view of the existing building 1 after the support beam 16 has been erected. .

また、図4の(b)に示すように、異なる1本の受け梁16を、当該受け梁16の長尺方向が水平となり、第二壁3の面に平行になる姿勢で、補強対象である第二梁13の一端14を当該受け梁16の長尺方向の中間部の上フランジが下方から支持するように、当該受け梁16の両端17の夫々を、撤去対象である第二軸柱7を挟むように立設していた2本の第二軸柱7の残された軸柱部材9のウェブ及び隅用軸柱部材10に夫々当接させ、撤去対象である第二軸柱7を挟むように立設していた2本の第二軸柱7によって支持されている第一梁11の一端12と、第二梁13の一端14と、の下フランジのボルト孔に、受け梁16の上面の両端17の夫々に設けられているボルト孔を下方から重ね、ボルト接合によって接合する。受け梁16によって補強対象である第一梁11を支持し補強する工程と、受け梁16によって補強対象である第二梁13を支持し補強する工程と、は順不同である。 Further, as shown in FIG. 4(b), a different receiving beam 16 is placed as a reinforcement object in a posture in which the longitudinal direction of the receiving beam 16 is horizontal and parallel to the surface of the second wall 3. Both ends 17 of a certain second beam 13 are supported from below by the upper flange of the intermediate portion in the longitudinal direction of the receiving beam 16, and the second shaft pillar to be removed is The webs of the remaining shaft members 9 and the corner shaft members 10 of the two second shaft members 7 erected so as to sandwich the shaft 7 are brought into contact with each other, and the second shaft members 7 to be removed are brought into contact with each other. One end 12 of the first beam 11 and one end 14 of the second beam 13, which are supported by the two second shaft pillars 7 erected to sandwich the receiving beam, The bolt holes provided at both ends 17 of the upper surface of the member 16 are overlapped from below and joined by bolting. The step of supporting and reinforcing the first beam 11 to be reinforced by the receiving beam 16 and the step of supporting and reinforcing the second beam 13 to be reinforced by the receiving beam 16 are in random order.

2本の受け梁16によって補強対象である第一梁11の一端12と、第二梁13の一端14と、の夫々を下方から支持し補強した状態のとき、補強対象である第一梁11の一端12を支持する受け梁16の上フランジに設けられているボルト孔の一部は、撤去対象である第一軸柱6を撤去することで空いている補強対象である第一梁11の下フランジのボルト孔に、下方から重なるように設けられており、補強対象である第二梁13の一端14を支持する受け梁16の上フランジに設けられているボルト孔の一部は、撤去対象である第二軸柱7を撤去することで空いている補強対象である第二梁13の下フランジのボルト孔に、下方から重なるように設けられており、補強対象である第一梁11の一端12を支持する受け梁16の上フランジと、補強対象である第一梁11の下フランジと、をボルト接合によって接合し、補強対象である第二梁13の一端14を支持する受け梁16の上フランジと、補強対象である第二梁13の下フランジと、をボルト接合によって接合する。これにより、撤去対象である第一軸柱6と第二軸柱7とを撤去することで支持を失った補強対象である第一梁11と第二梁13が補強されたことになる。 When the one end 12 of the first beam 11 to be reinforced and the one end 14 of the second beam 13 to be reinforced by the two receiving beams 16 are respectively supported and reinforced from below, the first beam 11 to be reinforced. Part of the bolt holes provided in the upper flange of the receiving beam 16 that supports the one end 12 of the first beam 11 that is to be reinforced by removing the first shaft pillar 6 that is to be removed. Part of the bolt hole provided in the upper flange of the support beam 16 that supports the end 14 of the second beam 13 to be reinforced, which is provided so as to overlap the bolt hole of the lower flange from below, is removed. The first beam 11 to be reinforced is provided so as to overlap from below the bolt hole of the lower flange of the second beam 13 to be reinforced that has been made available by removing the second shaft column 7 to be reinforced. The upper flange of the receiving beam 16 supporting one end 12 and the lower flange of the first beam 11 to be reinforced are joined by bolting, and the receiving beam supporting one end 14 of the second beam 13 to be reinforced. The upper flange 16 and the lower flange of the second beam 13 to be reinforced are joined by bolting. As a result, the first beam 11 and the second beam 13, which are objects to be reinforced and have lost their support, are reinforced by removing the first pillar 6 and the second pillar 7, which are objects to be removed.

また、補強対象である第一梁11を支持する受け梁16は、撤去対象である第一軸柱6を挟むように立設する2本の第一軸柱6、又は、撤去対象である第一軸柱6を挟むように立設する2本の第一軸柱6が支持する2本の第一梁11の夫々の一端12、に架設されるため、隅軸柱8に支持される第二梁13の下面に沿うように架設されることになる。そのため、補強対象である第一梁11を支持する受け梁16は、補強対象である第一梁11だけでなく、隅軸柱8に支持される第二梁13についても下方から支持することになる。同様に、補強対象である第二梁13を支持する受け梁16は、撤去対象である第二軸柱7を挟むように立設する2本の第二軸柱7、又は、撤去対象である第二軸柱7を挟むように立設する2本の第二軸柱7が支持する第二梁13の一端14及び第一梁11の一端12、に架設されるため、隅軸柱8に支持される第一梁11の下面に沿うように架設されることになる。そのため、補強対象である第二梁13を支持する受け梁16は、補強対象である第二梁13だけでなく、隅軸柱8に支持される第一梁11についても下方から支持することになる。 Further, the receiving beams 16 that support the first beam 11 to be reinforced are two first shaft pillars 6 erected so as to sandwich the first shaft pillar 6 to be removed, or the first shaft pillar 6 to be removed. Since it is installed on one end 12 of each of the two first beams 11 supported by the two first shafts 6 erected so as to sandwich the single shaft 6, the second beam supported by the corner shaft 8 It is constructed along the lower surface of the two beams 13 . Therefore, the receiving beam 16 supporting the first beam 11 to be reinforced supports not only the first beam 11 to be reinforced but also the second beam 13 supported by the corner post 8 from below. Become. Similarly, the receiving beams 16 that support the second beam 13 to be reinforced are two second pillars 7 erected so as to sandwich the second pillar 7 to be removed, or the second pillars 7 to be removed. Since it is installed on one end 14 of the second beam 13 and one end 12 of the first beam 11 supported by the two second shafts 7 standing so as to sandwich the second shaft 7, the corner shaft 8 It is constructed along the lower surface of the supported first beam 11 . Therefore, the receiving beam 16 supporting the second beam 13 to be reinforced supports not only the second beam 13 to be reinforced but also the first beam 11 supported by the corner post 8 from below. Become.

また、図4に示すように、受け梁支持部材18によって2本の受け梁16の両端17の夫々を下方から支持する。本発明の一実施形態に使用される受け梁支持部材18は、鉛直方向に長尺なC形鋼であり、受け梁支持部材18の長尺方向の長さは、軸柱部材9の長尺方向の長さから、受け梁16の上面から受け梁16の下面までの長さを引いた長さであり、受け梁支持部材18は、当該受け梁支持部材18の上端に、受け梁16と接合するためのボルト孔を有する接続部を有し、当該受け梁支持部材18のウェブに、軸柱部材9又は隅用軸柱部材10と接合するためのボルト孔を有する。 Further, as shown in FIG. 4, each of the two ends 17 of the two receiving beams 16 is supported by the receiving beam support member 18 from below. The receiving beam supporting member 18 used in one embodiment of the present invention is a vertically elongated C-shaped steel, and the length of the receiving beam supporting member 18 in the longitudinal direction is equal to the length of the shaft column member 9 . It is the length obtained by subtracting the length from the upper surface of the receiving beam 16 to the lower surface of the receiving beam 16 from the length of the direction. The web of the beam support member 18 has bolt holes for joining with the post member 9 or the corner post member 10 .

そして、1本の受け梁支持部材18を、当該受け梁支持部材18の上端で、補強対象である第一梁11を支持する受け梁16を下方から支持するように、撤去対象である第一軸柱6を挟むように立設されていた2本の第一軸柱6のうちの隅軸柱8ではない第一軸柱6の軸柱部材9のウェブに、当該受け梁支持部材18のウェブを当接させ、当該受け梁支持部材18と、第一軸柱6の軸柱部材9と、をボルト接合させ、当該受け梁支持部材18と、補強対象である第一梁を支持する受け梁16と、をボルト接合させる。そして、他の1本の受け梁支持部材18を、当該受け梁支持部材18の上端で、補強対象である第一梁を支持する受け梁16を下方から支持するように、撤去対象である第一軸柱6を挟むように立設されていた2本の第一軸柱6のうちの隅軸柱8の隅用軸柱部材10に、当該受け梁支持部材18のウェブを当接させ、当該受け梁支持部材18と、隅軸柱8の隅用軸柱部材10と、をボルト接合させ、当該受け梁支持部材18と、補強対象である第一梁11を支持する受け梁16と、をボルト接合させる。これにより、補強対象である第一梁11を支持する受け梁16の両端が、長尺な受け梁支持部材18の上端で下方から支持されることになり、受け梁16の鉛直方向の強度を増すことができる。また、受け梁支持部材18の上端が受け梁16の両端の夫々を下方から支持するため、受け梁16を梁勝ちで架設することになる。そして、補強対象である第二梁13を支持する受け梁16についても同様に、2本の受け梁支持部材18の上端によって、当該受け梁16の両端17の夫々を下方から支持させ、受け梁16の鉛直方向の強度を増す。 Then, one receiving beam supporting member 18 is attached to the first beam to be removed so that the receiving beam 16 supporting the first beam 11 to be reinforced is supported from below by the upper end of the receiving beam supporting member 18 . Of the two first shafts 6 erected so as to sandwich the shaft 6, the receiving beam support member 18 is attached to the web of the shaft pillar member 9 of the first shaft pillar 6 that is not the corner shaft 8. The web is brought into contact with the receiving beam supporting member 18 and the shaft column member 9 of the first shaft column 6, and bolted to support the receiving beam supporting member 18 and the first beam to be reinforced. and the beam 16 are bolted. Then, another one of the receiving beam support members 18 is placed on the upper end of the receiving beam support member 18 so as to support the receiving beam 16 supporting the first beam to be reinforced from below. The web of the receiving beam support member 18 is brought into contact with the corner pillar member 10 of the corner pillar 8 of the two first pillars 6 erected so as to sandwich the uniaxial pillar 6, The receiving beam support member 18 and the corner shaft member 10 of the corner shaft 8 are joined with bolts, and the receiving beam support member 18 and the receiving beam 16 that supports the first beam 11 to be reinforced, are bolted. As a result, both ends of the receiving beam 16 that supports the first beam 11 to be reinforced are supported from below by the upper ends of the long receiving beam support members 18, thereby increasing the strength of the receiving beam 16 in the vertical direction. can be increased. In addition, since the upper ends of the receiving beam support members 18 support both ends of the receiving beam 16 from below, the receiving beam 16 is erected with beam beams. Similarly, for the support beam 16 that supports the second beam 13 to be reinforced, the upper ends of the two support beam support members 18 are used to support both ends 17 of the support beam 16 from below. Increases 16 vertical strength.

最後に、第一壁2と第二壁3とに開口部を設け、第一壁2と第二壁3を復旧させる。または、第一壁2と第二壁3とを普及せずに既存建築物1の間取りを変更し、リフォームが完了する。以上のように、本発明では天井又は上階の床面を開放することなく補強対象である第一梁11と第二梁13とを補強することができ、また、直交するように固定されている補強対象である第一梁11と第二梁13とを補強するための2本の受け柱16は、互いに直交することがない。そのため、受け柱は複雑な形状である必要がなく、また、取付け固定する際に複雑な作業を必要としない。 Finally, openings are provided in the first wall 2 and the second wall 3, and the first wall 2 and the second wall 3 are restored. Alternatively, the floor plan of the existing building 1 is changed without spreading the first wall 2 and the second wall 3, and the renovation is completed. As described above, in the present invention, the first beam 11 and the second beam 13, which are to be reinforced, can be reinforced without opening the ceiling or the floor surface of the upper floor. The two supporting pillars 16 for reinforcing the first beam 11 and the second beam 13, which are objects to be reinforced, are not perpendicular to each other. Therefore, the support post does not need to have a complicated shape, and no complicated work is required for mounting and fixing.

また、一実施形態では、鉛直方向に長尺な部材である受け梁支持部材18を使用して、受け梁16の両端17の夫々を下方から支持したことにより、受け梁16は、梁勝ちで当該受け梁16の両端17が固定されることになる。ここで、他の実施形態として、異なる形状の受け梁支持部材18について説明する。他の実施形態は、図5に示すように、撤去対象である第一軸柱6を挟む2本の第一軸柱6の軸柱部材9を撤去することなく受け柱16を架設させるものである。受け梁支持部材18は、水平方向に広がる板状の支持部19を有する部材であり、撤去対象である第一軸柱6を挟む2本の第一軸柱6の夫々が有する2本の軸柱部材9のうち、撤去対象である第一軸柱6側に位置する夫々の軸柱部材9に、支持部19が撤去対象である第一軸柱6側に突出するように固定され、受け梁16の両端17を支持部19の夫々に載置するように架設させ、受け梁支持部材18と受け梁16とをボルト接合することで、受け梁支持部材18を介して受け梁16を第一軸柱6に固定する。これにより、補強対象である第一梁11を支持する受け梁16の両端が残された2本の第一軸柱6から水平方向に突出した板状の支持部によって下方から支持されることになり、受け梁16の鉛直方向の強度を増すことができる。また、受け梁支持部材18は残された2本の第一軸柱6から水平方向に突出した板状の支持部によって受け梁16の両端17の夫々を下方から支持するため、受け梁16を柱勝ちで架設することになる。そして、図示しないが補強対象である第二梁13を支持する受け梁16についても同様に、2個の受け梁支持部材18によって、当該受け梁16の両端17の夫々を下方から支持させることで、受け梁16の鉛直方向の強度を増すことができる。 In one embodiment, the supporting beam support member 18, which is a member elongated in the vertical direction, is used to support both ends 17 of the supporting beam 16 from below. Both ends 17 of the receiving beam 16 are fixed. Here, as another embodiment, the receiving beam support member 18 having a different shape will be described. In another embodiment, as shown in FIG. 5, the receiving pillar 16 is erected without removing the pillar members 9 of the two first pillars 6 sandwiching the first pillar 6 to be removed. be. The receiving beam support member 18 is a member having a plate-shaped support portion 19 that extends in the horizontal direction. Of the column members 9, each of the column members 9 positioned on the side of the first column 6 to be removed is fixed so that the support portion 19 protrudes toward the side of the first column 6 to be removed. Both ends 17 of the beam 16 are placed on the respective support portions 19, and the receiving beam support member 18 and the receiving beam 16 are connected by bolts, so that the receiving beam 16 is placed on the second side through the receiving beam support member 18. It is fixed to the uniaxial column 6. As a result, both ends of the receiving beam 16 that supports the first beam 11 to be reinforced are supported from below by the plate-shaped support portions horizontally protruding from the remaining two first shaft pillars 6. As a result, the strength of the support beam 16 in the vertical direction can be increased. In addition, since the supporting beam support member 18 supports each of the opposite ends 17 of the supporting beam 16 from below by means of plate-like support portions projecting horizontally from the remaining two first shaft pillars 6, the supporting beam 16 is It will be erected by pillar winning. Similarly, for the receiving beam 16 that supports the second beam 13 to be reinforced (not shown), two supporting beam support members 18 support both ends 17 of the receiving beam 16 from below. , the vertical strength of the support beam 16 can be increased.

本発明に係る出隅部の梁と柱に関するリフォーム方法は、特に住宅リフォーム産業において好意的に採用されるものと見込まれ、住宅リフォーム産業の発展に貢献できる。 The remodeling method relating to beams and columns at external corners according to the present invention is expected to be favorably adopted particularly in the housing remodeling industry, and can contribute to the development of the housing remodeling industry.

1 既存建築物
2 第一壁
3 第二壁
4 内側
5 外側
6 第一軸柱
7 第二軸柱
16 受け梁
18 受け梁支持部材
19 支持部
1 Existing Building 2 First Wall 3 Second Wall 4 Inside 5 Outside 6 First Axle 7 Second Axle 16 Receiving Beam 18 Receiving Beam Support Member 19 Support Part

Claims (3)

第一壁と、
前記第一壁とで出隅を形成する第二壁と、
前記第一壁に沿って一列に並ぶように当該第一壁の内部に立設する少なくとも3本以上の長尺な第一軸柱と、
前記第二壁に沿って一列に並ぶように当該第二壁の内部に立設する少なくとも3本以上の長尺な第二軸柱と、
一端が第一軸柱の夫々によって下方から支持され、前記第一壁から出隅の内側に向かって水平方向に伸びるように架設される複数の長尺な第一梁と、
一端が第二軸柱の夫々によって下方から支持され、前記第二壁から出隅の内側に向かって水平方向に伸びるように架設される複数の長尺な第二梁と、
を有する既存建築物おいて、
一列に並ぶ複数の前記第一軸柱のうち、列の端に位置しない少なくとも1本以上の前記第一軸柱と、一列に並ぶ複数の前記第二軸柱のうち、列の端に位置しない少なくとも1本以上の前記第二軸柱と、を撤去する工程と、
1本の受け梁を、第一壁の内部に当該第一壁に平行な水平方向に架設し、撤去した前記第一軸柱が下方から支持していた前記第一梁の一端を当該受け梁によって下方から支持させ、また、他の1本の受け梁を、第二壁の内部に当該第二壁に平行な水平方向に架設し、撤去した前記第二軸柱が下方から支持していた前記第二梁の一端を当該受け梁によって下方から支持させる工程と、
を含むことを特徴とする出隅部の梁と柱に関するリフォーム方法。
first wall and
a second wall forming an outward corner with the first wall;
At least three or more long first shaft pillars erected inside the first wall so as to line up along the first wall;
At least three or more elongated second shaft pillars erected inside the second wall so as to be aligned in a row along the second wall;
a plurality of elongated first beams, each of which has one end supported from below by each of the first shafts, extending horizontally from the first wall toward the inner side of the protruded corner;
a plurality of elongated second beams each of which has one end supported from below by each of the second pillars and extends horizontally from the second wall toward the inner side of the protruded corner;
In an existing building with
At least one first shaft pillar that is not located at the end of the row among the plurality of first shaft pillars aligned in a row, and at least one of the plurality of second shaft pillars that is aligned in the row and is not located at the end of the row removing at least one or more of the second axles;
A single support beam was installed inside the first wall in a horizontal direction parallel to the first wall, and one end of the first beam supported from below by the removed first shaft column was attached to the support beam. and another support beam was installed inside the second wall in a horizontal direction parallel to the second wall, and the removed second shaft column was supported from below. a step of supporting one end of the second beam by the receiving beam from below;
A renovation method for beams and columns at outside corners, comprising:
架設された前記受け梁の両端を、鉛直方向に長尺な部材である受け梁支持部材の上端によって夫々下方から支持し固定する工程を含むことを特徴とする請求項1に記載の出隅部の梁と柱に関するリフォーム方法。 2. The protruding corner according to claim 1, further comprising a step of supporting and fixing both ends of the suspended support beam from below by upper ends of support beam support members, which are members elongated in the vertical direction. Renovation method for beams and columns. 水平方向の支持部を有する受け梁支持部材を、撤去した前記第一軸柱を挟んでいた2本の前記第一軸柱と、撤去した前記第二軸柱を挟んでいた2本の前記第二軸柱と、に取付け固定し、当該受け梁支持部材によって前記受け梁の両端を夫々下方から支持し固定する工程を含むことを特徴とする請求項1に記載の出隅部の梁と柱に関するリフォーム方法。 Receiving beam support members having horizontal support portions are arranged between the two first shaft pillars sandwiching the removed first shaft pillar and the two second shaft pillars sandwiching the removed second shaft pillar. 2. The beam and column at the protruding corner according to claim 1, further comprising a step of attaching and fixing to a biaxial pillar, and supporting and fixing both ends of the receiving beam by the supporting beam support members from below. Reform method about.
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