JP2007162354A - Reinforcing method for existing building, and building reinforced by the method - Google Patents

Reinforcing method for existing building, and building reinforced by the method Download PDF

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JP2007162354A
JP2007162354A JP2005360710A JP2005360710A JP2007162354A JP 2007162354 A JP2007162354 A JP 2007162354A JP 2005360710 A JP2005360710 A JP 2005360710A JP 2005360710 A JP2005360710 A JP 2005360710A JP 2007162354 A JP2007162354 A JP 2007162354A
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reinforcing
existing building
building
columns
dwelling unit
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Norifumi Konakawa
憲史 粉川
Takehiko Yamada
武彦 山田
Tomita Osaki
富太 大崎
Masao Komori
正夫 小森
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Miracle Three Corporation
株式会社ミラクルスリーコーポレーション
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<P>PROBLEM TO BE SOLVED: To provide a reinforcing method for an existing building that can impart high resistance to horizontal force applied to the existing building in case of an earthquake while preventing outward design from being greatly impaired. <P>SOLUTION: A plurality of reinforcing columns 2 are erected along external wall surfaces 1a, 1b of the existing building and fixed to the external wall surfaces of the existing building, and truss members arranged within a horizontal plane are fixed to connect the plurality of reinforcing columns. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

本発明は、既設建築物の補強方法及びこの方法により補強された建築物に関し、より詳しくは、既設建築物に対して地震の際に加わる水平力に対する高い対抗力を付与することができる補強方法及びこの方法により補強された建築物に関する。   The present invention relates to a method for reinforcing an existing building and a building reinforced by this method, and more specifically, a reinforcing method capable of imparting a high resistance to a horizontal force applied to an existing building during an earthquake. And a building reinforced by this method.
我が国は世界でも有数の地震大国であり、比較的短い周期で、数多くの建物が倒壊するような大規模な地震が発生している。
地震による被害を教訓として建物の耐震基準の見直しが実施されており、1978年の宮城県沖地震後、耐震設計法が抜本的に見直されて、耐震設計基準が大幅に改正され、現在の新耐震設計基準が誕生した。この新耐震基準により建てられた建物は、阪神大震災においても被害は少なかったといわれている。
しかしながら、既設建築物の中には、旧耐震基準により建てられたものが数多く存在しており、これら旧耐震基準により建てられた既設建築物は、地震によって倒壊する危険性が指摘されている。
Japan is one of the world's leading earthquake powers, and large-scale earthquakes that cause many buildings to collapse occur in a relatively short cycle.
Based on the lessons learned from earthquake damage, the earthquake resistance standards for buildings have been revised.After the 1978 Miyagi-ken-Oki Earthquake, the earthquake resistance design method was drastically revised, and the earthquake resistance design standards were significantly revised, and the current new Seismic design standards were born. Buildings built according to this new earthquake resistance standard are said to have suffered little damage in the Great Hanshin Earthquake.
However, there are many existing buildings built according to the old earthquake resistance standards, and it is pointed out that existing buildings built according to these old earthquake resistance standards may be destroyed by an earthquake.
このような実情に鑑みて、旧耐震基準により建てられた既設建築物を耐震補強する技術が数多く提案されている。
既設建築物の耐震補強方法として代表的なものはブレースを用いた補強工法であり、例えば下記特許文献1の開示技術はその一例である。
特許文献1の開示技術は、RC柱とRC梁に鉄骨枠組を外側から当てがって一体化し、これにブレースを取りつけて、ブレースによる補強効果がRC造に及ぶようにしたものである。
しかしながら、特許文献1に開示されたようなブレース工法は、ブレースが窓の部分に位置するために、住人にとっては非常に目障りであって開放感が大きく阻害される上に、外部から見た意匠性も大きく損なわれるという問題があった。
In view of this situation, many techniques for seismic reinforcement of existing buildings built according to the old seismic standards have been proposed.
A typical method for seismic reinforcement of existing buildings is a reinforcement method using braces, for example, the technology disclosed in Patent Document 1 below is an example.
The disclosed technique of Patent Document 1 is a structure in which a steel frame is applied to an RC column and an RC beam from the outside, and a brace is attached thereto so that the reinforcing effect of the brace extends to RC construction.
However, the brace method as disclosed in Patent Document 1 is very disturbing for residents because the brace is located in the window portion, and the open feeling is greatly hindered. There was a problem that the property was greatly impaired.
このようなブレース工法の欠点を解消するために提案された技術として、下記特許文献2の開示技術が存在している。
特許文献2の開示技術は、窓等の開口部を備えた鉄筋コンクリート造の外面に鉄骨を取りつけて一体化し、これによってRC造を爾後的に強化する耐震補強工法において、既存RC柱に取りつけられるH形鋼柱に、既存RC柱と略同等の大きさの曲げ剛性を有するものを選定してブレースを設けないようにしたものである。
As a technique proposed in order to eliminate the drawbacks of the brace method, there is a technique disclosed in Patent Document 2 below.
The disclosed technique of Patent Document 2 is a method of attaching a steel frame to the outer surface of a reinforced concrete structure having an opening such as a window and integrating it, and in this way the seismic reinforcement method for strengthening the RC structure later is installed in an existing RC column. A shape steel column having a bending rigidity substantially equal to that of an existing RC column is selected so that a brace is not provided.
この特許文献2の開示技術は、ブレースを設けない構造であることにより、上記特許文献1の開示技術が有する問題点を解決することができるが、その反面、地震の際に加わる水平力に対する対抗力が充分に得られない可能性があった。   The disclosed technique of Patent Document 2 can solve the problems of the disclosed technique of Patent Document 1 by providing a structure without braces, but on the other hand, it counteracts the horizontal force applied in the event of an earthquake. There was a possibility that sufficient force could not be obtained.
特開平11−193639号公報Japanese Patent Application Laid-Open No. 11-193639 特開2004−169504号公報JP 2004-169504 A
本発明は、上記した従来技術の問題点を解決すべくなされたものであって、既設建築物に対して地震の際に加わる水平力に対する高い対抗力を付与することができるとともに、外部から見た意匠性が大きく損なわれることがない既設建築物の補強方法及びこの方法により補強された建築物を提供するものである。   The present invention has been made to solve the above-described problems of the prior art, and can impart high resistance to horizontal force applied to existing buildings during an earthquake, as well as from the outside. The present invention provides a method for reinforcing an existing building that does not significantly impair the design, and a building reinforced by this method.
請求項1に係る発明は、既設建築物の外壁面に沿う補強用柱を複数本立設し、該補強用柱を前記既設建築物の外壁面に固定するとともに、水平面内に配したトラス材を該複数本の補強用柱を繋ぐように固定することを特徴とする既設建築物の補強方法に関する。   The invention according to claim 1 is provided with a plurality of reinforcing pillars standing along an outer wall surface of an existing building, fixing the reinforcing pillar to the outer wall surface of the existing building, and a truss member arranged in a horizontal plane. The present invention relates to a method for reinforcing an existing building, wherein the plurality of reinforcing columns are fixed so as to be connected.
請求項2に係る発明は、既設建築物の外壁面に沿う複数本の内側補強用柱と、該内側補強用柱の夫々の外側近傍に位置する複数本の外側補強用柱とを立設し、前記内側補強用柱を前記既設建築物の外壁面に固定するとともに、水平面内に配したトラス材を、前記複数本の内側補強用柱を繋ぐように且つ該内側補強用柱と外側補強用柱との間に固定することを特徴とする既設建築物の補強方法に関する。   The invention according to claim 2 is provided with a plurality of inner reinforcing columns along the outer wall surface of the existing building, and a plurality of outer reinforcing columns positioned near the outside of each of the inner reinforcing columns. The inner reinforcing pillar is fixed to the outer wall surface of the existing building, and a truss member arranged in a horizontal plane is connected to the plurality of inner reinforcing pillars and the inner reinforcing pillar and the outer reinforcing pillar are connected to each other. It is related with the reinforcement method of the existing building characterized by fixing between pillars.
請求項3に係る発明は、既設建築物が、隣接する住戸間に各住戸への出入口に接続する屋外階段を備えた階段室型共同住宅であって、既設建築物の屋外階段側において、前記外側補強用柱の夫々の外側近傍に位置する複数本の最外側補強用柱を立設し、該最外側補強用柱と外側補強用柱の間に既設建築物の各階の床高さと略同じ高さで新規廊下を設け、各住戸の出入口に接続する屋外階段のうち、上り側又は下り側のいずれか一方側の階段のみを撤去して、もう一方側の階段は撤去せずに維持し、前記撤去された側の階段部分の空間において、住戸の出入口と該住戸と同じ階に設けられた新規廊下とを通路にて連結し、前記維持された側の階段と住戸の出入口と該住戸の上階又は下階に設けられた新規廊下とを新たな階段にて連結し、前記新規廊下と既設建築物との間の空間に、各住戸内部と同じ高さで連通する増設フロアを住戸毎に個別に構築することを特徴とする請求項2記載の既設建築物の補強方法に関する。   The invention which concerns on Claim 3 is a staircase type apartment house provided with the outdoor staircase which an existing building connects between the entrances to each dwelling unit between adjacent dwelling units, In the outdoor staircase side of an existing building, A plurality of outermost reinforcing columns located near the outside of each of the outer reinforcing columns are erected, and the floor height of each floor of the existing building is approximately the same between the outermost reinforcing column and the outer reinforcing column. A new corridor will be provided at a height, and only one of the stairs on either the up or down side of the outdoor stairs connected to the entrance / exit of each dwelling unit will be removed, and the stairs on the other side will not be removed. In the space of the removed staircase portion, the entrance / exit of the dwelling unit and a new hallway provided on the same floor as the dwelling unit are connected by a passage, and the maintained staircase, the dwelling unit entrance / exit and the dwelling unit are connected Connect the new hallway on the upper or lower floor with a new staircase, The space between the corridor and the existing building, to reinforcing method according to claim 2 existing building according to the extension floor, characterized in that constructed individually for each dwelling unit communicating at the same height as each dwelling unit inside.
請求項4に係る発明は、前記補強用柱を既設建築物の上方に至るように立設し、該既設建築物の上方において前記補強用柱間に梁を架設して床及び屋根を構築することにより、既設建築物の上方に新たな居住空間を形成することを特徴とする請求項2記載の既設建築物の補強方法に関する。   According to a fourth aspect of the present invention, the reinforcing column is erected so as to reach the upper side of the existing building, and a floor and a roof are constructed by laying a beam between the reinforcing columns above the existing building. Thus, the present invention relates to a method for reinforcing an existing building according to claim 2, wherein a new living space is formed above the existing building.
請求項5に係る発明は、既設建築物の外壁面に沿って補強用柱が複数本立設され、該補強用柱は前記既設建築物の外壁面に固定されているとともに、水平面内に配したトラス材が該複数本の補強用柱を繋ぐように固定されていることを特徴とする建築物に関する。   In the invention according to claim 5, a plurality of reinforcing columns are erected along the outer wall surface of the existing building, and the reinforcing column is fixed to the outer wall surface of the existing building and arranged in a horizontal plane. The present invention relates to a building in which a truss member is fixed so as to connect the plurality of reinforcing columns.
請求項6に係る発明は、既設建築物の外壁面に沿う複数本の内側補強用柱と、該内側補強用柱の夫々の外側近傍に位置する複数本の外側補強用柱とが立設され、前記内側補強用柱が前記既設建築物の外壁面に固定されているとともに、水平面内に配したトラス材が、前記複数本の内側補強用柱を繋ぐように且つ該内側補強用柱と外側補強用柱との間に固定されていることを特徴とする建築物に関する。   In the invention according to claim 6, a plurality of inner reinforcing columns along the outer wall surface of the existing building and a plurality of outer reinforcing columns located near the outside of each of the inner reinforcing columns are erected. The inner reinforcing column is fixed to the outer wall surface of the existing building, and a truss member arranged in a horizontal plane connects the plurality of inner reinforcing columns and the outer reinforcing column and the outer side. The present invention relates to a building which is fixed between reinforcing columns.
請求項7に係る発明は、前記外壁面が、既設建築物の桁行方向に延びる表側外壁面と裏側外壁面の2つの外壁面であることを特徴とする請求項5又は6記載の建築物に関する。   The invention according to claim 7 relates to the building according to claim 5 or 6, wherein the outer wall surface is two outer wall surfaces of a front-side outer wall surface and a back-side outer wall surface that extend in a direction of the existing building. .
請求項8に係る発明は、前記外壁面が、既設建築物の全ての外壁面であることを特徴とする請求項5又は6記載の建築物に関する。   The invention according to claim 8 relates to the building according to claim 5 or 6, wherein the outer wall surface is all outer wall surfaces of an existing building.
請求項9に係る発明は、前記トラス材が、既設建築物の外部廊下及び/又はバルコニーの下部に配置されていることを特徴とする請求項5乃至8いずれかに記載の建築物に関する。   The invention according to claim 9 relates to the building according to any one of claims 5 to 8, characterized in that the truss member is arranged in an external corridor of the existing building and / or a lower part of the balcony.
請求項1及び5に係る発明によれば、既設建築物の外壁面に沿ってトラス材により連結された複数本の補強用柱が固定されることによって、既設建築物に対して地震の際に加わる水平力に対する高い対抗力を付与することができるとともに、トラス材が水平面内に配されていることにより、トラス材が窓を塞ぐなどして住人の開放感を阻害することがなく、外部から見た意匠性が大きく損なわれることもない。   According to the invention which concerns on Claims 1 and 5, a plurality of reinforcing columns connected by truss members are fixed along the outer wall surface of the existing building. High resistance against horizontal force applied can be given, and the truss material is arranged in the horizontal plane, so the truss material does not obstruct the resident's feeling of opening, such as blocking windows, from the outside. The look of the design is not significantly impaired.
請求項2及び6に係る発明によれば、水平面内に配したトラス材を、内側補強用柱と外側補強用柱との間に固定することによって、トラス材を容易に且つ安定した状態で固定することができ、固定後の建築物の耐震強度も優れたものとなる。   According to the inventions according to claims 2 and 6, the truss member arranged in the horizontal plane is fixed between the inner reinforcing column and the outer reinforcing column, so that the truss member can be fixed easily and stably. The seismic strength of the building after fixing is also excellent.
請求項3に係る発明によれば、階段室型共同住宅からなる既設建築物を、高い耐震性を有し且つ水平方向へと増築されたバリアフリーの片廊下型共同住宅に生まれ変わらせることができる。   According to the invention which concerns on Claim 3, the existing building which consists of a staircase type | mold apartment house can be reborn into the barrier-free one hallway type apartment house which has high earthquake resistance and was extended in the horizontal direction. .
請求項4に係る発明によれば、既設建築物を、高い耐震性を有し且つ上方向へと増築された建築物に生まれ変わらせることができる。   According to the invention which concerns on Claim 4, an existing building can be reborn into the building which has high earthquake resistance and was extended upwards.
請求項7に係る発明によれば、既設建築物の桁行方向に延びる表側外壁面と裏側外壁面の2つの外壁面を補強することで、一般に水平耐力が低い桁行方向のみを補強することにより、施工期間及びコストを低く抑えつつ既設建築物に高い耐震性を付与することが可能となる。   According to the invention according to claim 7, by reinforcing the two outer wall surfaces of the front side outer wall surface and the back side outer wall surface that extend in the direction of the existing building, generally by reinforcing only the direction of the beam having a low horizontal proof stress, It is possible to give high earthquake resistance to existing buildings while keeping the construction period and cost low.
請求項8に係る発明によれば、既設建築物の全ての外壁面が補強されることで、既設建築物に比べて耐震性が大きく高められた建築物となる。   According to the invention which concerns on Claim 8, it becomes a building where earthquake resistance was greatly improved compared with the existing building by reinforcing all the outer wall surfaces of the existing building.
請求項9に係る発明は、トラス材が既設建築物の外部廊下及び/又はバルコニーの下部に配置されていることにより、耐震性が高く且つトラス材が外観的に目立たず意匠性に優れた建築物となる。   In the invention according to claim 9, the truss material is arranged in the external corridor and / or the lower part of the balcony of the existing building, so that the building has high earthquake resistance, the truss material is not conspicuous in appearance, and has excellent design. It becomes a thing.
以下、本発明に係る既設建築物の補強方法及びこの方法により補強された建築物の好適な実施形態について、図面を参照しつつ説明する。
図1及び図2は、本発明に係る既設建築物の補強方法の第一実施形態を示す概略図である。尚、図示例においては、既設建築物の窓等の細部は省略されている。
第一実施形態に係る方法では、先ず、図1に示すように、既設建築物(1)の外壁面に沿うように補強用柱(2)を複数本立設する。このとき、補強用柱(2)は、既設建築物(1)の外壁の幅方向ほぼ全長に亘るように、既設建築物(1)の柱(以下、既設柱と称す)の位置に合わせて立設する。
DESCRIPTION OF EXEMPLARY EMBODIMENTS Hereinafter, a preferred embodiment of a method for reinforcing an existing building according to the present invention and a building reinforced by this method will be described with reference to the drawings.
FIG.1 and FIG.2 is schematic which shows 1st embodiment of the reinforcement method of the existing building which concerns on this invention. In the illustrated example, details such as windows of existing buildings are omitted.
In the method according to the first embodiment, first, as shown in FIG. 1, a plurality of reinforcing pillars (2) are erected along the outer wall surface of the existing building (1). At this time, the reinforcing column (2) is aligned with the position of the column of the existing building (1) (hereinafter referred to as the existing column) so as to cover the entire length in the width direction of the outer wall of the existing building (1). Stand up.
補強用柱(2)は、少なくとも既設建築物(1)の桁行方向(図1中矢印方向)に延びる表側外壁面(1a)と裏側外壁面(1b)の2つの外壁面に沿って立設すればよいが、妻側方向に延びる面(1c)を含む全ての外壁面に沿って立設してもよい。
補強用柱(2)としては、H形鋼柱や四角鋼管柱等が使用される。
The reinforcing pillar (2) is erected along at least two outer wall surfaces of the front outer wall surface (1a) and the rear outer wall surface (1b) extending in the direction of the existing building (1) in the direction of the arrow (the arrow direction in FIG. 1). However, it may be erected along all the outer wall surfaces including the surface (1c) extending in the wife side direction.
As the reinforcing column (2), an H-shaped steel column, a square steel pipe column, or the like is used.
次いで、立設された補強用柱(2)を既設建築物(1)の外壁面に固定する。
固定方法としては、特許文献2に記載されているように、補強用柱(2)と既設建築物(1)の外壁面内側にある既設柱とを、ケミカルアンカー、スタッドジベル、スパイラルフープ、高強度無収縮モルタルを用いて一体化する方法が例示できるが、特にこの方法に限定はされない。
Next, the erected reinforcing pillar (2) is fixed to the outer wall surface of the existing building (1).
As a fixing method, as described in Patent Document 2, a reinforcing column (2) and an existing column inside the outer wall surface of an existing building (1) are connected to a chemical anchor, a stud gibber, a spiral hoop, a high Although the method of integrating using a strong non-shrink mortar can be illustrated, it is not limited to this method in particular.
そして、図2に示すように、トラス材(3)を、全ての補強用柱(2)を連結するように固定することにより、既設建築物(1)の補強が完了する。固定方法としては、溶接やボルト止め等の公知の手段が用いられる。
トラス材(3)は、矩形状枠体の内部に斜め材が配置された公知の構造のものであって、鋼材等などの高強度材料から形成される。
And as shown in FIG. 2, the reinforcement of the existing building (1) is completed by fixing the truss member (3) so as to connect all the reinforcing columns (2). As a fixing method, known means such as welding and bolting are used.
The truss member (3) has a known structure in which an oblique member is arranged inside a rectangular frame, and is formed from a high-strength material such as steel.
トラス材(3)を補強用柱(2)に固定するときには、図2に示すように、トラス材(3)を水平面内に配して、すなわち矩形状枠体で構成される面が水平面内にあるように向けて固定する。
このように、既設建築物(1)の外壁面に固定された補強用柱(2)に対して、水平方向のトラス材(3)を固定することにより、既設建築物に対して高い水平耐力を付与することができるとともに、トラス材が窓を塞ぐことがなくなり、既設建築物の意匠性が大きく損なわれることもない。
When the truss member (3) is fixed to the reinforcing column (2), as shown in FIG. 2, the truss member (3) is arranged in the horizontal plane, that is, the surface constituted by the rectangular frame is in the horizontal plane. Fix it so that it is in the direction.
Thus, by fixing the horizontal truss member (3) to the reinforcing pillar (2) fixed to the outer wall surface of the existing building (1), the horizontal strength of the existing building is high. The truss material does not block the window, and the design of the existing building is not greatly impaired.
本発明において、トラス材(3)の長さは、既設建築物(1)の幅方向長さに合わせて設定すればよく、既設建築物(1)の幅方向長さと同じ長さをもつ1つのトラス材(3)を用いてもよいし、複数のトラス材(3)を繋げて既設建築物(1)の幅方向長さと同じ長さとしてもよい。トラス材(3)の幅は、個々の既設建築物(1)に関する構造計算によって設定されるが、概ね600〜1000mm程度とされる。この程度の幅であれば、バルコニーの下側や外部廊下の下側に目立たないように設置することができる上に、耐震強度の向上も充分に図れるためである。
また、既設建築物(1)の1つの外壁面に固定されるトラス材(3)の数(高さ方向に並ぶ数)は、既設建築物(1)の階数に合わせて設定するとよい。例えば、図2に示すように、既設建築物(1)が5階建ての場合には5つのトラス材(3)が固定される。また、トラス材(3)は既設建築物(1)の梁の位置に合わせて配置することが好ましい。
In the present invention, the length of the truss member (3) may be set according to the length in the width direction of the existing building (1), and has the same length as the length in the width direction of the existing building (1). Two truss members (3) may be used, or a plurality of truss members (3) may be connected to have the same length as the width of the existing building (1). The width of the truss member (3) is set by structural calculation for each existing building (1), and is approximately 600 to 1000 mm. This width is because it can be installed inconspicuously under the balcony or under the external corridor, and the seismic strength can be sufficiently improved.
Further, the number of truss members (3) fixed to one outer wall surface of the existing building (1) (the number arranged in the height direction) may be set according to the number of floors of the existing building (1). For example, as shown in FIG. 2, when the existing building (1) is five stories, five truss members (3) are fixed. Moreover, it is preferable to arrange | position truss material (3) according to the position of the beam of the existing building (1).
更に、本発明において、補強用柱(2)を、既設建築物(1)の妻側方向に延びる面(1c)を含む全ての外壁面に沿って立設した場合には、当然、トラス材(3)も妻側方向に延びる面(1c)に配置されて固定される。
固定方法は、表側外壁面(1a)及び裏側外壁面(1b)における方法と同様であって、トラス材(3)を水平面内に配して補強用柱(2)に対して固定する。
補強用柱(2)を既設建築物(1)の全ての外壁面に沿って立設してトラス材(3)を固定した場合には、既設建築物の耐震性を一層高めることが可能となる。
Furthermore, in the present invention, when the reinforcing pillar (2) is erected along all the outer wall surfaces including the surface (1c) extending in the direction of the wife of the existing building (1), naturally, the truss material (3) is also arranged and fixed on the surface (1c) extending in the wife side direction.
The fixing method is the same as the method for the front side outer wall surface (1a) and the back side outer wall surface (1b), and the truss member (3) is arranged in a horizontal plane and fixed to the reinforcing column (2).
When the reinforcing pillar (2) is erected along all the outer wall surfaces of the existing building (1) and the truss member (3) is fixed, it is possible to further improve the earthquake resistance of the existing building. Become.
また、本発明においては、補強用柱だけでなくトラス材についても既設建築物の外壁面に固定することが好ましい。固定方法については、補強用柱についての固定方法と同様の方法を採用することができる。
尚、本明細書において、「本発明」とのみ記して実施形態を特定していない文章による説明は、原則的に全ての実施形態に共通する構成について当てはまる説明である。
In the present invention, it is preferable to fix not only the reinforcing pillar but also the truss material to the outer wall surface of the existing building. As for the fixing method, the same method as the fixing method for the reinforcing column can be employed.
In the present specification, the description in the text that describes only the “present invention” and does not specify the embodiment is a description that applies in principle to configurations common to all the embodiments.
図3及び図4は、本発明に係る既設建築物の補強方法の第二実施形態を示す概略図であり、以下、第一実施形態の方法と異なる点について説明する。尚、第一実施形態と同じ構成については同じ符号を付している。
第二実施形態に係る方法では、先ず、図3に示すように、既設建築物(1)の外壁面に沿う複数本の内側補強用柱(21)を立設し、更にこれら複数本の内側補強用柱(21)の夫々の外側近傍位置に複数本の外側補強用柱(22)を立設する。
内側補強用柱(21)と外側補強用柱(22)の間の距離は、トラス材(3)の幅と略同じに設定される。
3 and 4 are schematic views showing a second embodiment of the method for reinforcing an existing building according to the present invention, and hereinafter, differences from the method of the first embodiment will be described. In addition, the same code | symbol is attached | subjected about the same structure as 1st embodiment.
In the method according to the second embodiment, first, as shown in FIG. 3, a plurality of inner reinforcing pillars (21) are erected along the outer wall surface of the existing building (1), and further, the inner side of these plurality A plurality of outer reinforcing columns (22) are erected in the vicinity of the outer side of each of the reinforcing columns (21).
The distance between the inner reinforcing column (21) and the outer reinforcing column (22) is set to be substantially the same as the width of the truss member (3).
内側補強用柱(21)は、少なくとも既設建築物(1)の桁行方向に延びる表側外壁面(1a)と裏側外壁面(1b)の2つの外壁面に沿って立設すればよいが、妻側方向に延びる面(1c)を含む全ての外壁面に沿って立設してもよい。尚、この構成は後述する他の実施形態にも共通するものである。   The inner reinforcing column (21) may be erected along at least two outer wall surfaces of the front outer wall surface (1a) and the rear outer wall surface (1b) extending in the direction of the existing building (1). You may stand along all the outer wall surfaces including the surface (1c) extended in a side direction. This configuration is common to other embodiments described later.
次いで、立設された内側補強用柱(21)を、第一実施形態と同様の方法により、既設建築物(1)の外壁面に固定する。
そして、図4に示すように、水平面内に配したトラス材(3)を、全ての内側補強用柱(21)を連結するように且つ内側補強用柱(21)と外側補強用柱(22)との間を連結するように固定する。
Next, the upright inner reinforcing column (21) is fixed to the outer wall surface of the existing building (1) by the same method as in the first embodiment.
Then, as shown in FIG. 4, the truss member (3) arranged in the horizontal plane is connected to all the inner reinforcing columns (21) and the inner reinforcing columns (21) and the outer reinforcing columns (22). ) Are fixed so that they are connected to each other.
このように、第二実施形態によれば、トラス材(3)を内側補強用柱(21)と外側補強用柱(22)との間において両持ち状態で支持することができるため、トラス材(3)を容易に且つ安定した状態で固定することが可能であり、補強後の建築物の耐震強度も第一実施形態のものと比べて優れたものとなる。   As described above, according to the second embodiment, the truss member (3) can be supported in a supported state between the inner reinforcing column (21) and the outer reinforcing column (22). (3) can be easily and stably fixed, and the seismic strength of the building after reinforcement is superior to that of the first embodiment.
本発明において、既設建築物(1)に外部廊下やバルコニーが設けられている場合、トラス材(3)をこれら外部廊下やバルコニーの下部に配置すると、トラス材が外観的に目立たず意匠性に優れた建築物となるため好ましい。但し、外部廊下やバルコニーが無い既設建築物に対しても本発明を適用できることは勿論である。
また、既設建築物(1)の基礎と補強用柱(2)(21)(22)を立設するための基礎は一体化することが好ましい。
In the present invention, when the existing building (1) is provided with external corridors and balconies, the truss members are not conspicuous in appearance and have a design property when the truss members (3) are arranged in the lower portions of the external corridors and balconies. It is preferable because it is an excellent building. However, it goes without saying that the present invention can also be applied to an existing building having no external corridor or balcony.
Moreover, it is preferable that the foundation of the existing building (1) and the foundation for erecting the reinforcing columns (2), (21), and (22) are integrated.
図5乃至図12は、本発明に係る既設建築物の補強方法の第三実施形態を示す概略図であり、以下、第一及び第二実施形態の方法と異なる点について説明する。尚、前述の実施形態と同じ構成については同じ符号を付している。
第三実施形態に係る方法は、既設建築物(1)が、隣接する住戸(4)間に各住戸への出入口(5)に接続する屋外階段(6)を備えた階段室型共同住宅である。また、屋外階段(6)と反対側にはバルコニー(17)が備えられている。
図5(a)は既設建築物(1)の平面図であり、図5(b)はその概略縦断面図である。尚、第三実施形態及び後述する第四実施形態において、図6以降の平面図は最上部に配置されたトラス材(3)の下方を示している。
FIG. 5 thru | or FIG. 12 is schematic which shows 3rd embodiment of the reinforcement method of the existing building which concerns on this invention, and demonstrates a different point from the method of 1st and 2nd embodiment hereafter. In addition, the same code | symbol is attached | subjected about the same structure as the above-mentioned embodiment.
The method according to the third embodiment is a staircase type apartment house in which an existing building (1) is provided with an outdoor staircase (6) connected to an entrance (5) to each dwelling unit between adjacent dwelling units (4). is there. In addition, a balcony (17) is provided on the side opposite to the outdoor staircase (6).
Fig.5 (a) is a top view of the existing building (1), FIG.5 (b) is the schematic longitudinal cross-sectional view. In the third embodiment and the fourth embodiment to be described later, the plan views after FIG. 6 show the lower side of the truss member (3) arranged at the top.
第三実施形態に係る方法では、先ず、図6に示すように、既設建築物(1)の外壁面に沿う複数本の内側補強用柱(21)と、これら複数本の内側補強用柱(21)の夫々の外側近傍に位置する複数本の外側補強用柱(22)を立設する。このとき、屋外階段側における内側補強用柱(21)と外側補強用柱(22)との距離を、反対側よりも広く設定する。
そして、既設建築物(1)の屋外階段側においては、複数本の外側補強用柱(22)の夫々の外側近傍位置に複数本の最外側補強用柱(23)を立設する。
尚、第三実施形態及び後述する第四実施形態において、既設建築物(1)の基礎(18)と、補強用柱(21)(22)(23)を立設するための基礎(19)は、一体化することが好ましい。
In the method according to the third embodiment, first, as shown in FIG. 6, a plurality of inner reinforcing columns (21) along the outer wall surface of the existing building (1), and the plurality of inner reinforcing columns ( 21) A plurality of outer reinforcing columns (22) are provided upright in the vicinity of the outer side of each of 21). At this time, the distance between the inner reinforcing column (21) and the outer reinforcing column (22) on the outdoor staircase side is set wider than that on the opposite side.
Then, on the outdoor staircase side of the existing building (1), a plurality of outermost reinforcing columns (23) are erected at positions near the outer sides of the plurality of outer reinforcing columns (22).
In the third embodiment and the fourth embodiment to be described later, the foundation (18) of the existing building (1) and the foundation (19) for standing the reinforcing columns (21), (22), and (23). Are preferably integrated.
次いで、立設された内側補強用柱(21)を、第一実施形態と同様の方法により、既設建築物(1)の外壁面に固定する。
そして、図7に示すように、水平面内に配したトラス材(3)を、全ての内側補強用柱(21)を連結するように且つ内側補強用柱(21)と外側補強用柱(22)との間に固定する。このとき、屋外階段と反対側においては、トラス材(3)はバルコニー(17)の下方近傍に設置される。
また、内側補強用柱(21)同士、外側補強用柱(22)同士、最外側補強用柱(23)同士、更に内側補強用柱(21)と外側補強用柱(22)と最外側補強用柱(23)は、鉄骨等からなる梁(7)により互いに連結される。
Next, the upright inner reinforcing column (21) is fixed to the outer wall surface of the existing building (1) by the same method as in the first embodiment.
Then, as shown in FIG. 7, the truss member (3) arranged in the horizontal plane is connected to all the inner reinforcing columns (21) and the inner reinforcing columns (21) and the outer reinforcing columns (22). ). At this time, the truss member (3) is installed near the lower side of the balcony (17) on the side opposite to the outdoor staircase.
Also, the inner reinforcing columns (21), the outer reinforcing columns (22), the outermost reinforcing columns (23), the inner reinforcing columns (21) and the outer reinforcing columns (22), and the outermost reinforcing members are also provided. The columns (23) are connected to each other by a beam (7) made of a steel frame or the like.
さらに、図8に示すように、最外側補強用柱(23)と外側補強用柱(22)の間に、既設建築物(1)の各階の床高さと略同じ高さとなるように新規廊下(8)を設け、新規廊下(8)の両端部にはエレベータ(20a)及び避難階段(20b)を設ける。
このとき、新規廊下(8)と既設建築物(1)との間に吹き抜けの空間(9)が形成され、この空間は後述する新規階段及び増設フロアを設けるためのスペースとなる。
Furthermore, as shown in FIG. 8, a new hallway is formed between the outermost reinforcing column (23) and the outer reinforcing column (22) so as to be substantially the same as the floor height of each floor of the existing building (1). (8) is provided, and an elevator (20a) and an escape stairs (20b) are provided at both ends of the new hallway (8).
At this time, a hollow space (9) is formed between the new hallway (8) and the existing building (1), and this space becomes a space for providing a new staircase and an additional floor, which will be described later.
既設建築物の屋外階段(6)側に各階の床高さと略同じ高さで新規廊下(8)を設けた後、各住戸(4)の出入口(5)に接続する屋外階段(6)のうち、上り側又は下り側のいずれか一方側の階段のみを撤去する。このとき、もう一方側の階段は撤去せずに維持する。
そして、これを各階において同様に繰り返し、撤去された側の階段部分の空間において、住戸の出入口と該住戸と同じ階に設けられた新規廊下(8)とを水平な通路にて連結し、維持された側の階段と住戸の出入口と該住戸の上階又は下階に設けられた新規廊下とを新たな階段にて連結する。
After installing a new corridor (8) on the outdoor staircase (6) side of the existing building at the same height as the floor of each floor, the outdoor staircase (6) connected to the entrance (5) of each dwelling unit (4) Of these, only the stairs on either the up or down side are removed. At this time, the stairs on the other side are maintained without being removed.
Then, this is repeated in the same manner on each floor, and in the space of the removed staircase, the entrance / exit of the dwelling unit and the new corridor (8) provided on the same floor as the dwelling unit are connected by a horizontal passage and maintained. The new staircase is connected to the side staircase, the entrance / exit of the dwelling unit, and a new corridor provided on the upper or lower floor of the dwelling unit.
図9及び図10はこの施工工程をより詳細に示す説明図である。
図9は上り側の屋外階段を撤去し、下り側を撤去せずに維持した場合であり、(a)は施工前の状態、(b)は施工後の状態をそれぞれ示している。
図9の場合、撤去された上り側の階段部分の空間においては、住戸の出入口(5)と該住戸と同じ階に設けられた新規廊下(8a)とを水平な通路(10)にて連結している。一方、維持された下り側の階段(6)と住戸の出入口(5)と該住戸の下階に設けられた新規廊下(8b)とを新たな階段(11)にて連結している。
尚、新たな階段(11)と下階の新規廊下(8b)とは既設の踊り場(12)を介して連結される。
9 and 10 are explanatory views showing this construction process in more detail.
FIG. 9 shows a case where the outdoor step on the up side is removed and the down side is maintained without being removed, (a) shows the state before construction, and (b) shows the state after construction.
In the case of FIG. 9, in the space of the removed staircase on the upside, the entrance / exit (5) of the dwelling unit and the new hallway (8a) provided on the same floor as the dwelling unit are connected by a horizontal passageway (10). is doing. On the other hand, the maintained downstairs (6), the entrance / exit (5) of the dwelling unit, and the new corridor (8b) provided on the lower floor of the dwelling unit are connected by a new staircase (11).
In addition, a new staircase (11) and a new hallway (8b) on the lower floor are connected via an existing landing (12).
図10は下り側の屋外階段を撤去し、上り側を撤去せずに維持した場合であり、(a)は施工前の状態、(b)は施工途中の状態、(c)は施工後の状態をそれぞれ示している。
図10の場合、撤去された下り側の階段部分の空間においては、住戸の出入口(5)と該住戸と同じ階に設けられた新規廊下(8a)とを水平な通路(10)にて連結している。一方、維持された上り側の階段(6)と住戸の出入口(5)と該住戸の上階に設けられた新規廊下(8c)とを新たな階段(11)にて連結している。
尚、新たな階段(11)と上階の新規廊下(8c)とは既設の踊り場(12)を介して連結される。また、破線は階段が撤去されたことを示している。
FIG. 10 shows the case where the outdoor step on the down side is removed and the up side is maintained without being removed. (A) is a state before construction, (b) is a state during construction, and (c) is a state after construction. Each state is shown.
In the case of FIG. 10, in the space of the removed stairs, the entrance / exit (5) of the dwelling unit and the new hallway (8a) provided on the same floor as the dwelling unit are connected by a horizontal passage (10). is doing. On the other hand, the maintained upstairs (6), the entrance / exit (5) of the dwelling unit, and the new corridor (8c) provided on the upper floor of the dwelling unit are connected by a new staircase (11).
The new staircase (11) and the new upper corridor (8c) are connected via an existing landing (12). The broken line indicates that the stairs have been removed.
図11は、新たな階段(11)が設けられた状態を示す平面図である。
この状態では、新規廊下(8)と既設建築物(1)との間に吹き抜けの空間(9)が形成されている。
第三実施形態においては、この吹き抜け空間(9)に各住戸内部と同じ高さで連通する増設フロアを構築する。
FIG. 11 is a plan view showing a state in which a new staircase (11) is provided.
In this state, a hollow space (9) is formed between the new hallway (8) and the existing building (1).
In the third embodiment, an additional floor that communicates with the atrium space (9) at the same height as the interior of each dwelling unit is constructed.
図12は増設フロア(13)を構築した状態を示す図であり、(a)は平面図、(b)は概略縦断面図である。
増設フロア(13)は、図示のように、全ての住戸(4)に一律に構築されるのではなく住戸毎に個別に構築される。そのため、各居住者の希望に合わせて住戸毎に個別に増床することが可能であり、部屋の拡張を望む居住者の住戸には増設フロア(13)を構築し、望まない居住者の住戸には構築しないようにすることができる。また、経済的に余裕がないときには増設フロアを設けずに、経済的に余裕ができた時点で増設フロアを設けることもできる。
FIG. 12 is a diagram showing a state where the additional floor (13) has been constructed, in which (a) is a plan view and (b) is a schematic longitudinal sectional view.
As shown in the figure, the additional floor (13) is not constructed uniformly in all the dwelling units (4), but is constructed individually for each dwelling unit. Therefore, it is possible to individually increase the floor for each resident according to the wishes of each resident, and an extension floor (13) is constructed in the resident's unit that wants to expand the room. You can avoid building. In addition, when there is no economic margin, an additional floor can be provided at a point in time when there is an economic margin without providing an additional floor.
増設フロア(13)は、箱状に形成された居住のための閉鎖空間であって、予め組み立てられた箱状のプレハブユニットを設置することにより構築することもできるし、その他の方法、例えば鉄骨(軽量鉄骨等)を現場で組んで構築することもできる。
プレハブユニットを利用した場合、住戸毎の増床作業を効率良くすすめることができるという利点がある。
The additional floor (13) is a closed space for housing formed in a box shape, and can be constructed by installing a prefabricated box-shaped prefabricated unit, or other methods such as a steel frame. (Light steel frames etc.) can also be built on site.
When a prefabricated unit is used, there is an advantage that the floor expansion work for each dwelling unit can be promoted efficiently.
既設建築物(1)の住戸と、その表側(屋外階段が存在していた側)に新たに構築される増設フロア(13)は、その内部において連通状態とされる。これにより、増設フロア(13)が設けられた住戸の居住者は、部屋の内部空間を水平方向に大きく広げることができる。
また、増設フロア(13)は新規廊下(8)と面しているので、既存の玄関を閉鎖して、増設フロア(13)の新規廊下(8)に面する部分に新たな玄関を設けることも可能である。
The dwelling unit of the existing building (1) and the additional floor (13) newly constructed on the front side (side where the outdoor staircase existed) are in communication with each other. Thereby, the resident of the dwelling unit provided with the additional floor (13) can greatly expand the internal space of the room in the horizontal direction.
In addition, since the expansion floor (13) faces the new corridor (8), the existing entrance is closed and a new entrance is provided in the part of the expansion floor (13) facing the new corridor (8). Is also possible.
以上説明した第三実施形態の方法によって得られた建築物は、高い耐震性を有し且つ水平方向へと増築されたバリアフリーの片廊下型共同住宅となる。   The building obtained by the method of the third embodiment described above is a barrier-free one-way apartment house that has high earthquake resistance and is extended in the horizontal direction.
図13乃至図15は、本発明に係る既設建築物の補強方法の第四実施形態を示す図であり、以下、第三実施形態の方法と異なる点について説明する。尚、前述の実施形態と同じ構成については同じ符号を付している。
第四実施形態に係る方法も、既設建築物(1)が、図5に示したような、隣接する住戸(4)間に各住戸への出入口(5)に接続する屋外階段(6)を備えた階段室型共同住宅である。
FIGS. 13 to 15 are views showing a fourth embodiment of the method for reinforcing an existing building according to the present invention. Hereinafter, differences from the method of the third embodiment will be described. In addition, the same code | symbol is attached | subjected about the same structure as the above-mentioned embodiment.
In the method according to the fourth embodiment, the existing building (1) has an outdoor staircase (6) connected to the entrance (5) to each dwelling unit between adjacent dwelling units (4) as shown in FIG. This is a staircase type apartment house.
第四実施形態に係る方法では、先ず、第二実施形態と同様に、既設建築物(1)の外壁面に沿う複数本の内側補強用柱(21)と、これら複数本の内側補強用柱(21)の夫々の外側近傍に位置する複数本の外側補強用柱(22)とを立設する。
第二実施形態においては、これらの補強用柱(21)(22)は既設建築物(1)の高さと略同じ高さとされるが、第四実施形態ではこれらの補強用柱(21)(22)は既設建築物(1)よりも上方まで至る高さとされる。
また、屋外階段側における内側補強用柱(21)と外側補強用柱(22)との距離を、反対側よりも広く設定する。
In the method according to the fourth embodiment, first, similarly to the second embodiment, a plurality of inner reinforcing columns (21) along the outer wall surface of the existing building (1), and the plurality of inner reinforcing columns. A plurality of outer reinforcing columns (22) located in the vicinity of the outer side of each of (21) are erected.
In the second embodiment, these reinforcing columns (21) and (22) are substantially the same height as the existing building (1), but in the fourth embodiment, these reinforcing columns (21) ( 22) is the height that extends to the upper side of the existing building (1).
Further, the distance between the inner reinforcing column (21) and the outer reinforcing column (22) on the outdoor staircase side is set wider than that on the opposite side.
次いで、立設された内側補強用柱(21)を、第一乃至第三実施形態と同様の方法により、既設建築物(1)の外壁面に固定する。
そして、これらの補強用柱(21)(22)の頂部に既設建築物(1)の屋根の上方に位置する増築用屋根(14)を設けるとともに、既設建築物(1)の屋根の上方に補強用柱の中途部に架設された梁で支持される床部材(15)を設けてこの床部材(15)と増築用屋根(14)との間に新たな住戸となる居住空間(16)を形成し、そして補強用柱の外側に壁部材を装着することによって既設建築物の周囲及び上部を囲う(図14(b)参照)。
尚、図示例では、床部材(15)を上部に二層設けることによって、新たに2階分の居住空間(16)を形成した様子を示しているが、1階分若しくは3階分以上の居住空間(16)を形成するようにしてもよい。
Next, the upright inner reinforcing column (21) is fixed to the outer wall surface of the existing building (1) by the same method as in the first to third embodiments.
Then, an extension roof (14) located above the roof of the existing building (1) is provided on the top of these reinforcing columns (21) and (22), and above the roof of the existing building (1). A living space (16) which is provided with a floor member (15) supported by a beam installed in the middle of the reinforcing column and becomes a new dwelling unit between the floor member (15) and the extension roof (14). And surrounding the upper part and the upper part of the existing building by attaching a wall member to the outside of the reinforcing column (see FIG. 14B).
In the illustrated example, two floors of the floor member (15) are provided on the upper part to newly form a living space (16) for two floors. A residential space (16) may be formed.
更に、水平面内に配したトラス材(3)を、全ての内側補強用柱(21)を連結するように且つ内側補強用柱(21)と外側補強用柱(22)との間に固定する。このとき、屋外階段と反対側においては、トラス材(3)はバルコニー(17)の下方近傍に設置される。
また、内側補強用柱(21)同士、外側補強用柱(22)同士、更に内側補強用柱(21)と外側補強用柱(22)は、鉄骨等からなる梁(7)により互いに連結される。
Further, the truss member (3) arranged in the horizontal plane is fixed between the inner reinforcing column (21) and the outer reinforcing column (22) so as to connect all the inner reinforcing columns (21). . At this time, the truss member (3) is installed near the lower side of the balcony (17) on the side opposite to the outdoor staircase.
The inner reinforcing columns (21), the outer reinforcing columns (22), and the inner reinforcing column (21) and the outer reinforcing column (22) are connected to each other by a beam (7) made of steel or the like. The
既設建築物(1)の上方に新たな居住空間(16)を形成した後もしくは形成する前に、内側補強用柱(21)と外側補強用柱(22)の間を繋ぐように、各階の住戸の屋外階段(6)側に、同一階にある全ての住戸前を横切る新規廊下(8)を設ける(図15参照)。
第三実施形態では新規廊下(8)と既設建築物(1)との間に吹き抜けの空間(9)が形成されたが、第四実施形態では新規廊下(8)は既設建築物(1)と接するように設けられる。これにより、トラス材(3)の上方が新規廊下(8)により覆われることとなる。
また、既設建築物(1)の屋外階段(6)は解体撤去し、各住戸(4)から新規廊下(4)に面する側に新たな出入口(24)を設ける。
After or before forming a new living space (16) above the existing building (1), connect the inner reinforcing column (21) and the outer reinforcing column (22) to each floor. A new hallway (8) is provided on the outdoor staircase (6) side of the dwelling unit across all the dwelling units on the same floor (see FIG. 15).
In the third embodiment, a hollow space (9) is formed between the new hallway (8) and the existing building (1). In the fourth embodiment, the new hallway (8) is an existing building (1). It is provided so that it may touch. Thereby, the upper part of truss material (3) will be covered with a new corridor (8).
Moreover, the outdoor staircase (6) of the existing building (1) is dismantled and a new doorway (24) is provided on the side facing the new hallway (4) from each dwelling unit (4).
以上説明した第四実施形態の方法によって得られた建築物は、高い耐震性を有し且つ上方向へと増築されたバリアフリーの片廊下型共同住宅となる。   The building obtained by the method of the fourth embodiment described above is a barrier-free one-way apartment house that has high earthquake resistance and is extended upward.
本発明は、既設建築物の意匠性を損なうことなく耐震性を高めることができるため、旧耐震基準で建てられた建築物を補強するための方法として好適に利用することができる。   Since this invention can improve earthquake resistance, without impairing the designability of the existing building, it can be utilized suitably as a method for reinforcing the building built by the old earthquake resistance standard.
本発明に係る既設建築物の補強方法の第一実施形態を示す概略図である。It is the schematic which shows 1st embodiment of the reinforcement method of the existing building which concerns on this invention. 本発明に係る既設建築物の補強方法の第一実施形態を示す概略図である。It is the schematic which shows 1st embodiment of the reinforcement method of the existing building which concerns on this invention. 本発明に係る既設建築物の補強方法の第二実施形態を示す概略図である。It is the schematic which shows 2nd embodiment of the reinforcement method of the existing building which concerns on this invention. 本発明に係る既設建築物の補強方法の第二実施形態を示す概略図である。It is the schematic which shows 2nd embodiment of the reinforcement method of the existing building which concerns on this invention. 本発明に係る既設建築物の補強方法の第三実施形態を示す概略図である。It is the schematic which shows 3rd embodiment of the reinforcement method of the existing building which concerns on this invention. 本発明に係る既設建築物の補強方法の第三実施形態を示す概略図である。It is the schematic which shows 3rd embodiment of the reinforcement method of the existing building which concerns on this invention. 本発明に係る既設建築物の補強方法の第三実施形態を示す概略図である。It is the schematic which shows 3rd embodiment of the reinforcement method of the existing building which concerns on this invention. 本発明に係る既設建築物の補強方法の第三実施形態を示す概略図である。It is the schematic which shows 3rd embodiment of the reinforcement method of the existing building which concerns on this invention. 本発明に係る既設建築物の補強方法の第三実施形態を示す概略図である。It is the schematic which shows 3rd embodiment of the reinforcement method of the existing building which concerns on this invention. 本発明に係る既設建築物の補強方法の第三実施形態を示す概略図である。It is the schematic which shows 3rd embodiment of the reinforcement method of the existing building which concerns on this invention. 本発明に係る既設建築物の補強方法の第三実施形態を示す概略図である。It is the schematic which shows 3rd embodiment of the reinforcement method of the existing building which concerns on this invention. 本発明に係る既設建築物の補強方法の第三実施形態を示す概略図である。It is the schematic which shows 3rd embodiment of the reinforcement method of the existing building which concerns on this invention. 本発明に係る既設建築物の補強方法の第四実施形態を示す概略図である。It is the schematic which shows 4th embodiment of the reinforcement method of the existing building which concerns on this invention. 本発明に係る既設建築物の補強方法の第四実施形態を示す概略図である。It is the schematic which shows 4th embodiment of the reinforcement method of the existing building which concerns on this invention. 本発明に係る既設建築物の補強方法の第四実施形態を示す概略図である。It is the schematic which shows 4th embodiment of the reinforcement method of the existing building which concerns on this invention.
符号の説明Explanation of symbols
1 既設建築物
1a 表側外壁面
1b 裏側外壁面
2 補強用柱
21 内側補強用柱
22 外側補強用柱
23 最外側補強用柱
3 トラス材
4 住戸
5 各住戸への出入口
6 屋外階段
8 新規廊下
9 空間
10 通路
11 新たな階段
13 増設フロア
14 増築用屋根
15 床部材
16 居住空間
17 バルコニー
DESCRIPTION OF SYMBOLS 1 Existing building 1a Front side outer wall surface 1b Back side outer wall surface 2 Reinforcement pillar 21 Inner reinforcement pillar 22 Outer reinforcement pillar 23 Outermost reinforcement pillar 3 Truss material 4 Dwelling unit 5 Entrance to each dwelling unit 6 Outdoor stairway 8 New corridor 9 Space 10 Aisle 11 New staircase 13 Extension floor 14 Extension roof 15 Floor member 16 Living space 17 Balcony

Claims (9)

  1. 既設建築物の外壁面に沿う補強用柱を複数本立設し、該補強用柱を前記既設建築物の外壁面に固定するとともに、水平面内に配したトラス材を該複数本の補強用柱を繋ぐように固定することを特徴とする既設建築物の補強方法。   A plurality of reinforcing pillars are erected along the outer wall surface of the existing building, the reinforcing pillars are fixed to the outer wall surface of the existing building, and the truss members arranged in a horizontal plane are provided with the plurality of reinforcing pillars. A method for reinforcing an existing building, wherein the method is fixed so as to be connected.
  2. 既設建築物の外壁面に沿う複数本の内側補強用柱と、該内側補強用柱の夫々の外側近傍に位置する複数本の外側補強用柱とを立設し、前記内側補強用柱を前記既設建築物の外壁面に固定するとともに、水平面内に配したトラス材を、前記複数本の内側補強用柱を繋ぐように且つ該内側補強用柱と外側補強用柱との間に固定することを特徴とする既設建築物の補強方法。   A plurality of inner reinforcing columns along the outer wall surface of the existing building and a plurality of outer reinforcing columns positioned near the outside of each of the inner reinforcing columns are erected, and the inner reinforcing columns are Fixing to the outer wall surface of an existing building, and fixing the truss member arranged in a horizontal plane so as to connect the plurality of inner reinforcing columns and between the inner reinforcing column and the outer reinforcing column. A method of reinforcing an existing building characterized by the above.
  3. 既設建築物が、隣接する住戸間に各住戸への出入口に接続する屋外階段を備えた階段室型共同住宅であって、既設建築物の屋外階段側において、前記外側補強用柱の夫々の外側近傍に位置する複数本の最外側補強用柱を立設し、該最外側補強用柱と外側補強用柱の間に既設建築物の各階の床高さと略同じ高さで新規廊下を設け、各住戸の出入口に接続する屋外階段のうち、上り側又は下り側のいずれか一方側の階段のみを撤去して、もう一方側の階段は撤去せずに維持し、前記撤去された側の階段部分の空間において、住戸の出入口と該住戸と同じ階に設けられた新規廊下とを通路にて連結し、前記維持された側の階段と住戸の出入口と該住戸の上階又は下階に設けられた新規廊下とを新たな階段にて連結し、前記新規廊下と既設建築物との間の空間に、各住戸内部と同じ高さで連通する増設フロアを住戸毎に個別に構築することを特徴とする請求項2記載の既設建築物の補強方法。   The existing building is a staircase type apartment house with an outdoor staircase connected to the entrance to each dwelling unit between adjacent dwelling units, on the outdoor staircase side of the existing building, outside each of the outer reinforcing pillars A plurality of outermost reinforcing columns located in the vicinity are erected, and a new hallway is provided between the outermost reinforcing column and the outer reinforcing column at a height substantially equal to the floor height of each floor of the existing building, Of the outdoor stairs connected to the entrance / exit of each dwelling unit, remove only the stairs on either the upside or downside, and maintain the other side without removing the stairs on the removed side. In the space of the part, connect the entrance / exit of the dwelling unit and the new hallway provided on the same floor as the dwelling unit with a passage, and provide the staircase on the maintained side, the entrance / exit of the dwelling unit, and the upper or lower floor of the dwelling unit The new hallway is connected with a new staircase, and the new hallway is connected to the existing building. Reinforcing method of the space, the existing building according to claim 2, characterized in that the extension floor which communicates at the same height as each dwelling unit internal build separately for each dwelling unit.
  4. 前記補強用柱を前記既設建築物の上方に至るように立設し、該既設建築物の上方において前記補強用柱間に梁を架設して床及び屋根を構築することにより、既設建築物の上方に新たな居住空間を形成することを特徴とする請求項2記載の既設建築物の補強方法。   By standing the reinforcing column so as to reach above the existing building and constructing a floor and a roof by building a beam between the reinforcing columns above the existing building, 3. A method for reinforcing an existing building according to claim 2, wherein a new living space is formed above.
  5. 既設建築物の外壁面に沿って補強用柱が複数本立設され、該補強用柱は前記既設建築物の外壁面に固定されているとともに、水平面内に配したトラス材が該複数本の補強用柱を繋ぐように固定されていることを特徴とする建築物。   A plurality of reinforcing columns are erected along the outer wall surface of the existing building, the reinforcing column is fixed to the outer wall surface of the existing building, and a truss material arranged in a horizontal plane is used to reinforce the plurality of reinforcing columns. A building characterized by being fixed so as to connect pillars.
  6. 既設建築物の外壁面に沿う複数本の内側補強用柱と、該内側補強用柱の夫々の外側近傍に位置する複数本の外側補強用柱とが立設され、前記内側補強用柱が前記既設建築物の外壁面に固定されているとともに、水平面内に配したトラス材が、前記複数本の内側補強用柱を繋ぐように且つ該内側補強用柱と外側補強用柱との間に固定されていることを特徴とする建築物。   A plurality of inner reinforcing columns along the outer wall surface of the existing building and a plurality of outer reinforcing columns located near the outside of each of the inner reinforcing columns are erected, and the inner reinforcing columns are The truss member fixed to the outer wall surface of the existing building and connected in the horizontal plane connects the plurality of inner reinforcing columns and is fixed between the inner reinforcing column and the outer reinforcing column. A building characterized by being.
  7. 前記外壁面が、既設建築物の桁行方向に延びる表側外壁面と裏側外壁面の2つの外壁面であることを特徴とする請求項5又は6記載の建築物。   The building according to claim 5 or 6, wherein the outer wall surfaces are two outer wall surfaces, a front-side outer wall surface and a back-side outer wall surface that extend in the direction of the existing building.
  8. 前記外壁面が、既設建築物の全ての外壁面であることを特徴とする請求項5又は6記載の建築物。   The building according to claim 5 or 6, wherein the outer wall surface is all outer wall surfaces of an existing building.
  9. 前記トラス材が、既設建築物の外部廊下及び/又はバルコニーの下部に配置されていることを特徴とする請求項5乃至8いずれかに記載の建築物。   The building according to any one of claims 5 to 8, wherein the truss member is disposed in an external corridor and / or a lower part of a balcony of an existing building.
JP2005360710A 2005-12-14 2005-12-14 Reinforcing method for existing building, and building reinforced by the method Pending JP2007162354A (en)

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JP2009013641A (en) * 2007-07-04 2009-01-22 Taisei Corp Aseismatic reinforcing structure
JP2011084982A (en) * 2009-10-19 2011-04-28 Penta Ocean Construction Co Ltd Method for expanding housing complex with stairway room
JP2011241559A (en) * 2010-05-17 2011-12-01 Shimizu Corp Aseismatic reinforcement structure of existing reinforced concrete apartment house
JP2012097564A (en) * 2012-02-23 2012-05-24 Taisei Corp Seismic strengthening structure
JP2012097565A (en) * 2012-02-23 2012-05-24 Taisei Corp Seismic strengthening structure
JP2013227775A (en) * 2012-04-25 2013-11-07 Ohbayashi Corp Seismic strengthening structure and method for existing building
JP2014125746A (en) * 2012-12-25 2014-07-07 Takenaka Komuten Co Ltd Seismic strengthening structure

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Publication number Priority date Publication date Assignee Title
JP2009013641A (en) * 2007-07-04 2009-01-22 Taisei Corp Aseismatic reinforcing structure
JP2011084982A (en) * 2009-10-19 2011-04-28 Penta Ocean Construction Co Ltd Method for expanding housing complex with stairway room
JP2011241559A (en) * 2010-05-17 2011-12-01 Shimizu Corp Aseismatic reinforcement structure of existing reinforced concrete apartment house
JP2012097564A (en) * 2012-02-23 2012-05-24 Taisei Corp Seismic strengthening structure
JP2012097565A (en) * 2012-02-23 2012-05-24 Taisei Corp Seismic strengthening structure
JP2013227775A (en) * 2012-04-25 2013-11-07 Ohbayashi Corp Seismic strengthening structure and method for existing building
JP2014125746A (en) * 2012-12-25 2014-07-07 Takenaka Komuten Co Ltd Seismic strengthening structure

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