JPH0749724B2 - How to configure hinges on existing reinforced concrete columns - Google Patents
How to configure hinges on existing reinforced concrete columnsInfo
- Publication number
- JPH0749724B2 JPH0749724B2 JP4436289A JP4436289A JPH0749724B2 JP H0749724 B2 JPH0749724 B2 JP H0749724B2 JP 4436289 A JP4436289 A JP 4436289A JP 4436289 A JP4436289 A JP 4436289A JP H0749724 B2 JPH0749724 B2 JP H0749724B2
- Authority
- JP
- Japan
- Prior art keywords
- outer cylinder
- reinforced concrete
- existing
- circular hole
- cylinder
- 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.)
- Expired - Lifetime
Links
Landscapes
- Buildings Adapted To Withstand Abnormal External Influences (AREA)
- Working Measures On Existing Buildindgs (AREA)
Description
【発明の詳細な説明】 〔産業上の利用分野〕 本発明は、剛性の高い既存コンクリート造建築物を耐震
性構造に改修するため、鉄筋コンクリート造の既存柱に
ヒンジを構成する方法に関するものである。Description: TECHNICAL FIELD The present invention relates to a method of constructing a hinge on an existing reinforced concrete column in order to renovate a highly rigid existing concrete building into a seismic resistant structure. .
〔従来の技術および発明が解決しようとする課題〕 近年、既存の名建築の保存運動が活発になっているが、
既存の建築物は剛性の高い構造のものが多いため地震時
にはかえって被害を受け易く、このままでは保存が難し
いという問題がある。[Problems to be Solved by Conventional Techniques and Inventions] In recent years, preservation movements of existing famous buildings have become active.
Since many existing buildings have high rigidity, they are more likely to be damaged in the event of an earthquake, and it is difficult to preserve them as they are.
従来鉄筋コンクリート建築物を耐震構造にする技術とし
て鋼製か鋳鉄の沓でヒンジを作り、これを鉄筋コンクリ
ート部材に取付け、ヒンジ部の回転によって構造部材の
剛性を低下させ、あるいは架構形式を変更するものがあ
るが、この技法は新設工事以外には実施が困難であり、
既存建築には適用されていない。Conventionally, as a technology to make a reinforced concrete building a seismic resistant structure, one that makes a hinge with steel or cast iron troughs, attaches this to a reinforced concrete member, reduces the rigidity of the structural member by rotating the hinge part, or changes the frame type However, this technique is difficult to implement except for new construction,
Not applied to existing buildings.
本発明は上記問題に鑑み、既存建築物の保存に当り、剛
性の高い既存建築物を保存に最適な耐震性のある架構形
式に改修するための、鉄筋コンクリート造の既存柱にヒ
ンジを構成する方法を提供することを目的とする。In view of the above problems, the present invention is a method for constructing a hinge on an existing column of reinforced concrete for the purpose of renovating an existing building having high rigidity into a frame structure with optimum earthquake resistance when preserving an existing building. The purpose is to provide.
〔課題を解決するための手段〕 上記課題を解決するため本発明は、鉄筋コンクリート造
の既存柱の所定位置に水平方向の円孔を穿設し、上記円
孔に、軸方向に二分割した外筒と、該外筒に回動可能に
嵌合する内筒から成る二重円筒を外筒の分割面を水平に
して挿入し、上記外筒を円孔内面に固定した後、既存柱
を前記外筒の分割面を含む水平面で上下に切断してスリ
ットを設け、ヒンジを構成する鉄筋コンクリート造の既
存柱にヒンジを構成する方法を特徴としている。[Means for Solving the Problems] In order to solve the above problems, the present invention provides a circular hole in a horizontal direction at a predetermined position of an existing column made of reinforced concrete, and the circular hole is divided into two parts in the axial direction. A double cylinder composed of a cylinder and an inner cylinder that is rotatably fitted to the outer cylinder is inserted with the dividing surface of the outer cylinder horizontal, and the outer cylinder is fixed to the inner surface of the circular hole, and then the existing column is attached to The method is characterized in that the hinge is formed on an existing pillar made of reinforced concrete that constitutes a hinge by cutting the slit up and down along a horizontal plane including the dividing surface of the outer cylinder to form a slit.
既存柱は前記内筒を軸として回転可能なヒンジが構成さ
れるから、地震時柱の応力が緩和されると共に、柱軸力
と剪断力は安全に下部に伝達され、建物は地震の被害か
ら守られる。Since the existing column has a hinge that can rotate around the inner cylinder as an axis, the stress of the column during the earthquake is relieved, and the column axial force and shear force are safely transmitted to the lower part, and the building is protected from the earthquake damage. It is protected.
以下本発明を図示の一実施例に基いて詳細に説明する。 The present invention will be described in detail below with reference to an embodiment shown in the drawings.
図において、１は保存工事を行う建築物の鉄筋コンクリ
ート造の既存柱であって、保存工事は、まず既存柱１の
所定位置に水平方向の円孔1aを大径のダイヤモンドドリ
ル等で穿設する（第２図）。In the figure, reference numeral 1 denotes an existing reinforced concrete pillar of a building for which preserving work is to be performed. In preserving work, first, a horizontal circular hole 1a is bored at a predetermined position of the preexisting pillar 1 with a large diameter diamond drill or the like. (Fig. 2).
次に上記円孔1aより適宜小径で、分割部に必要な間隙を
配して軸方向に二分割した外筒２と、該外筒２に回動可
能に嵌合する内筒３から成る二重円筒を、外筒２の分割
面を水平にして前記円孔1aに挿入し、円孔1aと外筒２と
の間隙に無収縮モルタル４を充填し、外筒２を円孔１内
面に固定する（第３図）。なお外筒２の外周面に複数の
シヤキー５を固着して無収縮モルタルを充填することに
よって、円孔1aに外筒２が確実に固定され、また外筒２
と内筒３との接触面にテフロンコーティングを施すこと
によって、両者の摩擦抵抗を減ずることができる。Next, an outer cylinder 2 which is appropriately smaller in diameter than the circular hole 1a and is axially divided into two parts with a necessary gap in the dividing part, and an inner cylinder 3 which is rotatably fitted to the outer cylinder 2. The heavy cylinder is inserted into the circular hole 1a with the dividing surface of the outer cylinder 2 horizontal, and the non-shrinkable mortar 4 is filled in the gap between the circular hole 1a and the outer cylinder 2 so that the outer cylinder 2 becomes the inner surface of the circular hole 1. Fix it (Fig. 3). By fixing a plurality of shear keys 5 on the outer peripheral surface of the outer cylinder 2 and filling non-shrink mortar, the outer cylinder 2 is securely fixed in the circular hole 1a.
By applying Teflon coating to the contact surface between the inner cylinder 3 and the inner cylinder 3, the frictional resistance between them can be reduced.
次に既存柱１を前記外筒２の分割面を含む水平面で上下
に切断して切断面にスリット６を設け（第４図）、該ス
リット６部に軟質エポキシ樹脂等のシール材７を充填し
てヒンジを完成する（第１図）。Next, the existing pillar 1 is vertically cut along a horizontal plane including the dividing surface of the outer cylinder 2 to provide a slit 6 in the cut surface (FIG. 4), and the slit 6 is filled with a sealing material 7 such as a soft epoxy resin. To complete the hinge (Fig. 1).
以上説明したように本発明は、鉄筋コンクリート造の既
存柱の所定位置に水平方向の円孔を穿設し、上記円孔
に、軸方向に二分割した外筒と、該外筒に回動可能に嵌
合する内筒から成る二重円筒を外筒の分割面を水平にし
て挿入し、上記外筒を円孔内面に固定した後、既存柱を
前記外筒の分割面を含む水平面で上下に切断してスリッ
トを設け、ヒンジを構成するものであるから、地震時、
鉄筋コンクリート柱の応力が緩和されると共に、柱軸力
と剪断力は安全に下部に伝達され、建物は地震による被
害から守られ、剛性の高い既存建築の保存に有効な手段
となるものである。INDUSTRIAL APPLICABILITY As described above, according to the present invention, a horizontal circular hole is formed at a predetermined position of an existing column made of reinforced concrete, and the circular hole is axially divided into two outer cylinders and the outer cylinder is rotatable. After inserting the double cylinder composed of the inner cylinder that fits into the outer cylinder with the dividing surface of the outer cylinder horizontal, and fixing the outer cylinder to the inner surface of the circular hole, the existing column is moved up and down in the horizontal plane including the dividing surface of the outer cylinder. Since it is cut into a slit and a hinge is formed, during an earthquake,
The stress of the reinforced concrete columns is relieved, and the column axial force and shear force are safely transmitted to the lower part, which protects the building from earthquake damage and is an effective means for preserving the existing rigid building.
図面は本発明の一実施例を示し、第１図は本発明に係る
ヒンジの完成時の斜視透視図、第２図乃至第４図は施工
順序を示す側面図および各側面図のＡ−Ａ線矢視断面図
である。 １……既存柱、1a……円孔、２……外筒、３……内筒、
４……無収縮モルタル、５……シヤキー、６……スリッ
ト、７……シール材。The drawings show one embodiment of the present invention. FIG. 1 is a perspective perspective view of a hinge according to the present invention when it is completed, and FIGS. 2 to 4 are side views showing a construction sequence and AA of each side view. FIG. 1 ... Existing pillar, 1a ... Circular hole, 2 ... Outer cylinder, 3 ... Inner cylinder,
4 ... Non-shrink mortar, 5 ... Shear key, 6 ... Slit, 7 ... Sealing material.
Claims (1)
水平方向の円孔を穿設し、上記円孔に、軸方向に二分割
した外筒と、該外筒に回動可能に嵌合する内筒から成る
二重円筒を外筒の分割面を水平にして挿入し、上記外筒
を円孔内面に固定した後、既存柱を前記外筒の分割面を
含む水平面で上下に切断してスリットを設け、ヒンジを
構成することを特徴とする鉄筋コンクリート造の既存柱
にヒンジを構成する方法。1. An existing column made of reinforced concrete is provided with a horizontal circular hole at a predetermined position, and an axially divided outer cylinder is fitted into the circular hole, and the outer cylinder is rotatably fitted to the outer cylinder. After inserting the double cylinder consisting of the inner cylinder with the dividing surface of the outer cylinder horizontal, and fixing the outer cylinder to the inner surface of the circular hole, the existing column is cut up and down along a horizontal plane including the dividing surface of the outer cylinder. A method of forming a hinge on an existing reinforced concrete column, which comprises forming a slit to form a hinge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4436289A JPH0749724B2 (en) | 1989-02-23 | 1989-02-23 | How to configure hinges on existing reinforced concrete columns |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4436289A JPH0749724B2 (en) | 1989-02-23 | 1989-02-23 | How to configure hinges on existing reinforced concrete columns |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02225772A JPH02225772A (en) | 1990-09-07 |
| JPH0749724B2 true JPH0749724B2 (en) | 1995-05-31 |
Family
ID=12689399
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4436289A Expired - Lifetime JPH0749724B2 (en) | 1989-02-23 | 1989-02-23 | How to configure hinges on existing reinforced concrete columns |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0749724B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8353134B2 (en) | 2009-04-07 | 2013-01-15 | Tongji University | Grouted tubular energy-dissipation unit |
-
1989
- 1989-02-23 JP JP4436289A patent/JPH0749724B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH02225772A (en) | 1990-09-07 |
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