JPH10299260A - Seismic retrofitting method for existing buildings using square frame structures - Google Patents
Seismic retrofitting method for existing buildings using square frame structuresInfo
- Publication number
- JPH10299260A JPH10299260A JP10604597A JP10604597A JPH10299260A JP H10299260 A JPH10299260 A JP H10299260A JP 10604597 A JP10604597 A JP 10604597A JP 10604597 A JP10604597 A JP 10604597A JP H10299260 A JPH10299260 A JP H10299260A
- Authority
- JP
- Japan
- Prior art keywords
- existing
- square frame
- frame
- seismic retrofitting
- existing buildings
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims abstract description 17
- 238000009420 retrofitting Methods 0.000 title claims abstract description 10
- 229910000831 Steel Inorganic materials 0.000 claims description 8
- 239000010959 steel Substances 0.000 claims description 8
- 239000011150 reinforced concrete Substances 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 11
- 238000010276 construction Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 238000009432 framing Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
Landscapes
- Working Measures On Existing Buildindgs (AREA)
- Buildings Adapted To Withstand Abnormal External Influences (AREA)
Abstract
(57)【要約】
【課題】 既存のＳ造またはＳＲＣ造の建築物に、既存
の梁の許容応力を超えないで、簡単に施工できる耐震改
修方法を提供する。
【解決手段】 既存の建築物の柱、梁架構に、ロ字型骨
組架構を付加設置しロ字型架構の横幅を加減して既存梁
への応力の伝達を調整する。
(57) [Problem] To provide a seismic retrofitting method that can be easily applied to an existing S or SRC building without exceeding the allowable stress of the existing beam. SOLUTION: An R-shaped frame is additionally installed on a pillar or a beam frame of an existing building, and the width of the R-shaped frame is adjusted to adjust the transmission of stress to the existing beam.
Description
【０００１】[0001]
【発明の属する技術分野】この発明は、既存の鉄骨造
（以下単にＳ造と言う）または鉄骨鉄筋コンクリート造
（以下単にＳＲＣ造と言う）建築物の耐震改修におい
て、予め工場で製作した補強のロ字型骨組架構を、既存
の柱、梁架構に付加設置して耐震改修する、既存建築物
の耐震改修方法に関する。BACKGROUND OF THE INVENTION The present invention relates to an earthquake-resistant repair of an existing steel frame (hereinafter simply referred to as "S") or steel frame reinforced concrete (hereinafter simply "SRC") building. The present invention relates to a method of retrofitting an existing building by adding a frame-shaped frame to an existing column or beam frame and retrofitting it.
【０００２】[0002]
【従来の技術及び発明が解決しようとする課題】従来、
既存のＳ造またはＳＲＣ造の建築物の耐震改修を行う場
合は、下記のような付加改修を行っていた。2. Description of the Related Art
When retrofitting an existing S or SRC building, the following additional modifications were made.
【０００３】補強をしようとする階の上下にある梁２
1 、２2 と梁の間を連結する間柱５を付加設置する方
法。[0003] Beams 2 above and below the floor to be reinforced
1, 2 2 and a method of adding installing studs 5 for connecting the beams.
【０００４】柱と梁で囲まれた空間に、ブレース材を
付加設置する方法。A method of additionally installing a brace material in a space surrounded by columns and beams.
【０００５】柱と梁で囲まれた空間に、耐震壁を付加
設置する方法。[0005] A method of additionally installing an earthquake-resistant wall in a space surrounded by columns and beams.
【０００６】既存の柱及び梁部材を補強する方法。A method for reinforcing existing column and beam members.
【０００７】図４は補強をしようとする階の上下にある
梁２1 、２2 と梁の間を連結する間柱５を付加設置する
方法を示す図である。[0007] FIG. 4 is a diagram illustrating a method for adding installing studs 5 for connecting the beam 2 1, 2 2 and the beam above and below the floor to be reinforced.
【０００８】図５は柱と梁で囲まれた空間に、ブレース
材を付加設置する方法を示す図である。FIG. 5 is a diagram showing a method of additionally installing a brace material in a space surrounded by columns and beams.
【０００９】図６（ａ）、（ｂ）はボックス柱を、
（ｃ）、（ｃ）はＨ形柱を補強する図である。FIGS. 6A and 6B show box columns,
(C), (c) is a figure which reinforces an H-shaped column.
【００１０】図７はＨ形柱をＨ形鋼またはカットティー
で補強した図である。FIG. 7 is a diagram in which an H-shaped column is reinforced with H-shaped steel or cut tee.
【００１１】しかしこのような従来の工法では、耐震要
素を付加設置する前に、既存のＳ造またはＳＣＲ造の柱
及び梁部材を事前に相当補強しておく必要があった。そ
のため耐震補強工事は大がかりなものとなっていた。However, in such a conventional construction method, it is necessary to considerably reinforce the existing S or SCR column and beam members before installing the seismic element. For this reason, the seismic retrofitting work was extensive.
【００１２】この発明はこの点に鑑み創案されたもの
で、その目的は施工作業の能率がよく、かつ、既存の建
物の梁部材には最小限の補強をするだけで済む施工方法
を提供することにある。The present invention has been made in view of this point, and has as its object to provide a construction method which is efficient in construction work and requires only minimal reinforcement for beam members of existing buildings. It is in.
【００１３】[0013]
【課題を解決するための手段】ロ字型骨組架構による鉄
骨造または鉄骨鉄筋コンクリート造の既存建築物の耐震
改修方法であり、予め製作されたロ字型骨組架構を、既
存の柱と梁が構成する空間に付加設置してなることを特
徴とするロ字型骨組架構による既存建築物の耐震改修方
法であることを主旨とする。[MEANS FOR SOLVING THE PROBLEMS] This is a seismic retrofitting method for an existing building of a steel frame or a steel reinforced concrete structure using a square-shaped frame structure. The main purpose is to provide an earthquake-resistant retrofitting method for existing buildings using a square frame structure that is additionally installed in a space that does.
【００１４】次にその作用について説明する。Next, the operation will be described.
【００１５】図１はロ字型骨組架構で既存の柱、梁架構
を耐震改修した図である。FIG. 1 is a view showing an existing U-shaped frame structure in which existing columns and beam frames are subjected to seismic retrofitting.
【００１６】図２は水平抵抗応力の概念図を示す図であ
る。左右の縦部材にＱ1 なる水平地震力が作用したとす
る。左右の縦部材が横部材と交わる位置に、左右にそれ
ぞれＭ1 の曲げモーメントを生ずる。従って横部材の長
さをｌとすれば横部材には２Ｍ1/ｌ＝Ｑ2 の剪断力を生
ずる。つまりロ字型の幅ｌが広ければ広いほどロ字型骨
組架構を介して、既存の梁に伝達される応力は小さくな
る。FIG. 2 is a diagram showing a conceptual diagram of horizontal resistance stress. Horizontal seismic forces Q becomes 1 in the longitudinal member of the left and right and acts. A position vertical member of the right and left crosses the horizontal member, resulting in the bending moment on the left and right M 1. Thus creation of a shear force of 2M 1 / l = Q 2 is the length of the horizontal member to l Tosureba transverse member. That is, the larger the width l of the square shape, the smaller the stress transmitted to the existing beam via the square shape frame structure.
【００１７】従って既存の梁が保有する強度を超えない
ように、ロ字型骨組架構の形状を調整することができ
る。かくして柱、梁架構は２Ｑ1 だけ耐震性が向上す
る。Therefore, the shape of the square frame can be adjusted so as not to exceed the strength of the existing beam. Thus pillar, Harika構is improved only earthquake resistance 2Q 1.
【００１８】また、付加設置する骨組架構の既存梁への
取付け方法は、既存建築物の梁の補強が殆ど無く、溶接
またはボルトを用いた接合で簡単に接合できる。In addition, a method of attaching a frame structure to be added to an existing beam can be easily joined by welding or joining using bolts, with almost no reinforcement of the beam of the existing building.
【００１９】[0019]
【発明の実施の形態】以下図面に基づいてこの発明の実
施の形態を説明する。Embodiments of the present invention will be described below with reference to the drawings.
【００２０】図１はこの発明のロ型骨組架構３を既存の
柱１、梁２架構に応用した例である。FIG. 1 shows an example in which a square frame 3 of the present invention is applied to an existing column 1 and beam 2 frame.
【００２１】図２は水平抵抗応力の概念図を示す図であ
る。FIG. 2 is a diagram showing a conceptual diagram of horizontal resistance stress.
【００２２】図３はロ字型骨組架構３を既存の梁２に接
合する詳細図である。FIG. 3 is a detailed view of joining the square frame structure 3 to the existing beam 2.
【００２３】[0023]
【発明の効果】この発明は以上のような構成からなり、
その効果は次の通りである。The present invention has the above-described configuration,
The effect is as follows.
【００２４】左右の縦部材にＱ1 なる水平地震力が作用
したとする。左右の縦部材が横部材と交わる位置に、左
右にそれぞれＭ1 の曲げモーメントを生ずる。従って横
部材の長さをｌとすれば横部材には２Ｍ1/ｌ＝Ｑ2 の剪
断力を生ずる。つまりロ字型の幅ｌが広ければ広いほど
ロ字型骨組架構を介して、既存の梁に伝達される応力は
小さくなる。It is assumed that a horizontal seismic force Q 1 acts on the left and right vertical members. A position vertical member of the right and left crosses the horizontal member, resulting in the bending moment on the left and right M 1. Thus creation of a shear force of 2M 1 / l = Q 2 is the length of the horizontal member to l Tosureba transverse member. That is, the larger the width l of the square shape, the smaller the stress transmitted to the existing beam via the square shape frame structure.
【００２５】従って既存の梁が保有する強度を超えない
ように、ロ字型骨組架構の形状を調整することができ
る。かくして柱、梁架構は２Ｑ1 だけ耐震性が向上す
る。Therefore, the shape of the square frame can be adjusted so as not to exceed the strength of the existing beam. Thus pillar, Harika構is improved only earthquake resistance 2Q 1.
【００２６】また、付加設置する骨組架構の既存梁への
取付け方法は、既存建築物の梁の補強が殆ど無く、溶接
またはボルトを用いた接合で簡単に接合できる。In addition, the method of attaching the framing frame to be added to an existing beam does not substantially reinforce the beam of the existing building, and can be easily joined by welding or joining using bolts.
【図１】この発明のロ型骨組架構３を既存の柱１、梁２
架構に応用した図である。FIG. 1 shows a conventional frame 1 and a beam 2
It is the figure applied to the frame.
【図２】水平抵抗応力の概念図を示す図である。FIG. 2 is a diagram showing a conceptual diagram of horizontal resistance stress.
【図３】（ａ）はロ字型骨組架構３を既存の梁２に接合
する詳細図である。（ｂ）は（ａ）のａ−ａ視図であ
る。FIG. 3 (a) is a detailed view of joining a square frame structure 3 to an existing beam 2; (B) is an aa view of (a).
【図４】補強をしようとする階の上下にある梁２1 、２
2 と梁の間を連結する間柱５を付加設置する方法を示す
図である。FIG. 4 Beams 2 1 , 2 above and below the floor to be reinforced
It is a figure which shows the method of adding and installing the stud 5 which connects between 2 and a beam.
【図５】柱と梁で囲まれた空間に、ブレース材を付加設
置する方法を示す図である。FIG. 5 is a diagram showing a method of additionally installing a brace material in a space surrounded by columns and beams.
【図６】（ａ）、（ｂ）はボックス柱を、（ｃ）、
（d）はＨ形柱を補強する図である。6 (a) and 6 (b) show box pillars, and FIGS.
(D) is a figure which reinforces an H-shaped column.
【図７】Ｈ形柱をＨ形鋼またはカットティーで補強した
図である。FIG. 7 is a diagram in which an H-shaped column is reinforced with H-shaped steel or cut tee.
１……既存の建築物の柱 ２……既存の建築物の梁 ２1 ……上階の梁 ２2 ……下階の梁 ３……ロ字型骨組架構 ５……間柱1 ... pillars of existing buildings 2 ... beams of existing buildings 2 1 ... beams of upper floors 2 2 ... beams of lower floors 3 ... B-shaped frame 5 ... studs
Claims (1)
鉄筋コンクリート造の既存建築物の耐震改修方法であ
り、予め製作されたロ字型骨組架構を、既存の柱と梁が
構成する空間に付加設置してなることを特徴とするロ字
型骨組架構による既存建築物の耐震改修方法。1. An earthquake-resistant repair method for an existing building made of a steel frame or a steel reinforced concrete structure using a square frame structure, wherein a previously manufactured square frame structure is added to a space defined by existing columns and beams. A seismic retrofitting method for existing buildings using a square frame structure that is characterized by being installed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10604597A JP3804174B2 (en) | 1997-04-23 | 1997-04-23 | Seismic retrofitting method for existing buildings with square frame structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10604597A JP3804174B2 (en) | 1997-04-23 | 1997-04-23 | Seismic retrofitting method for existing buildings with square frame structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH10299260A true JPH10299260A (en) | 1998-11-10 |
| JP3804174B2 JP3804174B2 (en) | 2006-08-02 |
Family
ID=14423672
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10604597A Expired - Fee Related JP3804174B2 (en) | 1997-04-23 | 1997-04-23 | Seismic retrofitting method for existing buildings with square frame structure |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3804174B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100919683B1 (en) | 2008-11-20 | 2009-10-06 | 유암이엔씨(주) | Multi-point friction damper and seismic reinforcement device using the same |
| JP2016108911A (en) * | 2014-12-10 | 2016-06-20 | 株式会社竹中工務店 | Earthquake resistant wall structure |
| JP2017053178A (en) * | 2015-09-11 | 2017-03-16 | 株式会社竹中工務店 | Seismic strengthening frame and seismic strengthening structure |
-
1997
- 1997-04-23 JP JP10604597A patent/JP3804174B2/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100919683B1 (en) | 2008-11-20 | 2009-10-06 | 유암이엔씨(주) | Multi-point friction damper and seismic reinforcement device using the same |
| JP2016108911A (en) * | 2014-12-10 | 2016-06-20 | 株式会社竹中工務店 | Earthquake resistant wall structure |
| JP2017053178A (en) * | 2015-09-11 | 2017-03-16 | 株式会社竹中工務店 | Seismic strengthening frame and seismic strengthening structure |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3804174B2 (en) | 2006-08-02 |
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