JP2009150221A - Vibration control wall and vibration control structure - Google Patents

Vibration control wall and vibration control structure Download PDF

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JP2009150221A
JP2009150221A JP2009091362A JP2009091362A JP2009150221A JP 2009150221 A JP2009150221 A JP 2009150221A JP 2009091362 A JP2009091362 A JP 2009091362A JP 2009091362 A JP2009091362 A JP 2009091362A JP 2009150221 A JP2009150221 A JP 2009150221A
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corrugated steel
corrugated
steel plate
wall
frame
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Yoshihiro Ota
義弘 太田
Hirofumi Kaneko
洋文 金子
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Takenaka Komuten Co Ltd
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Takenaka Komuten Co Ltd
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a vibration control wall using a corrugated steel plate or a rigid corrugated steel plate made of low yield point steel as a wall material, and a vibration control structure equipped with the vibration control wall. <P>SOLUTION: The corrugated steel plate made of the low yield point steel is incorporated into the surface of a peripheral frame generating interlaminar deformation by horizontal force and arranged so that its corrugated stripes are directed in the horizontal direction. The peripheral frame and the corrugated steel plate are joined so that the horizontal force can be transmitted. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

本発明は、構造物の地震応答や風荷重応答を制御し又は抑制する制震壁の技術分野に属し、更に言えば、壁材に低降伏点鋼で製作された波形鋼板又は合成波形鋼板を使用した制震壁、及び前記の制震壁を具備する制震構造物に関する。   The present invention belongs to the technical field of damping walls that control or suppress the seismic response and wind load response of structures, and more specifically, corrugated steel sheets or synthetic corrugated steel sheets made of low-yield point steel as wall materials. The present invention relates to a damping wall used and a damping structure including the damping wall.

地震や風によって構造物に発生する振動エネルギを吸収させて構造物の応答を制御し又は抑制する制震壁、及び制震構造物としては、従来、
a)例えば下記特許文献1に開示されたように、水平力で層間変形を発生する周辺架構の面内に組み入れた壁板と周辺枠を連結する部分にエネルギ吸収機構を設けた構造形式。
b)下記特許文献2に開示されたように、塑性エネルギの吸収能力が大きい低降伏点鋼で製作した壁板を水平力で層間変形を発生する周辺架構の面内に組み入れた構造形式。
c)下記特許文献3に開示されたように、水平力で層間変形を発生する周辺架構の面内の上半部に上辺フレームに固定した上半壁を設け、下半部には下辺フレームに固定した下半壁壁を設け、上半壁と下半壁との境界部分に極低降伏点鋼等で製作した履歴減衰部材を組み入れた構造形式。
d)下記特許文献4及び5に開示されたように、水平力で層間変形を発生する周辺架構の面内の下辺フレームに粘性流体を収容した外容器壁を固定し、上辺フレームには前記外容器壁内に位置して粘性流体の粘性抵抗を受ける抵抗壁板を固定した粘性壁形式。
などが知られ、或いはこうした構造形式の制震壁を採用した制震構造物が知られている。
As a damping wall and a damping structure that absorbs vibration energy generated in the structure by an earthquake or wind and controls or suppresses the response of the structure,
a) For example, as disclosed in Patent Document 1 below, a structure type in which an energy absorption mechanism is provided at a portion connecting a wall plate and a peripheral frame incorporated in a plane of a peripheral frame that generates interlayer deformation by a horizontal force.
b) As disclosed in the following Patent Document 2, a structural form in which a wall plate made of low yield point steel having a large plastic energy absorption capability is incorporated in a plane of a peripheral frame that generates interlayer deformation by horizontal force.
c) As disclosed in the following Patent Document 3, an upper half wall fixed to the upper frame is provided in the upper half of the peripheral frame that generates interlayer deformation by horizontal force, and the lower half is fixed to the lower frame. The lower half wall is provided, and a hysteresis damping member made of ultra-low yield point steel is incorporated at the boundary between the upper and lower half walls.
d) As disclosed in Patent Documents 4 and 5 below, an outer container wall containing viscous fluid is fixed to the lower frame in the plane of the peripheral frame that generates interlayer deformation by horizontal force, and the outer frame is fixed to the upper frame. A viscous wall type in which a resistive wall plate that receives the viscous resistance of a viscous fluid is fixed in the container wall.
There is also known a seismic control structure that uses such a structural control wall.

特開2003−172041号公報JP 2003-172041 A 特開2001−317227号公報JP 2001-317227 A 特開平7−241525号公報JP-A-7-241525 特開平11−71935号公報JP-A-11-71935 特開2000−27485号公報JP 2000-27485 A

上述した従来の制震壁には、次のような欠点、問題点が認められる。
上記特許文献1の制震壁は、周辺架構と壁板との連結手段が特殊な構造のエネルギ吸収機構で構成されているから、高価なものである上に、メカニックな機構部分が長期の供用期間における品質保証が充分にできるか不安である。また、周辺架構と壁板との連結作業にはそれなりに熟練した専門技術を要する。
The conventional dampening walls described above have the following drawbacks and problems.
The damping wall of the above-mentioned Patent Document 1 is expensive because the connecting means between the peripheral frame and the wall plate is constructed with a special structure of energy absorption, and the mechanic mechanism is used for a long time. I am worried that quality assurance will be sufficient during the period. In addition, the connection work between the peripheral frame and the wall board requires some skill and expertise.

上記特許文献2の制震壁は、低降伏点鋼による壁板を柱梁架構の面内に組み込み、上下の梁と接合する構成である点を注目できるが、具体的には同公報の図3に記載されているように、矩形のフレーム内に低降伏点鋼による剪断パネルを設置するが、縦リブ、及び横リブで補強した制震パネルとして構成すると共に、上辺と下辺には上下の梁と接合するための接合プレートを設けた構成で実施される。つまり、柱梁架構の構面を全て低降伏点鋼板で構成するときは、面外力や座屈に配慮した強度及び剛性の設計の結果として、降伏耐力が大きくなり、柱梁架構への影響が大きくなって、これらの強度を大きくしなければならない(同公報の段落番号[0007])。その解決策として、低降伏点鋼板を前記制震パネルとして製作するときは、大変高価な制震壁になってしまい、普遍性に乏しいという問題点がある。   It can be noted that the damping wall of the above-mentioned Patent Document 2 has a structure in which a wall plate made of low yield point steel is incorporated in the plane of the column beam frame and is joined to the upper and lower beams. As shown in Fig. 3, a shear panel made of low-yield point steel is installed in a rectangular frame, and it is constructed as a vibration control panel reinforced with vertical and horizontal ribs. This is implemented with a configuration in which a joining plate for joining the beam is provided. In other words, when all the structural surfaces of a column beam frame are made of low yield point steel plates, the yield strength increases as a result of strength and rigidity design considering out-of-plane force and buckling, and the impact on the column beam frame is affected. These strengths must be increased (paragraph number [0007] of the publication). As a solution, when manufacturing a low yield point steel plate as the above-mentioned vibration control panel, there is a problem that it becomes a very expensive vibration control wall and lacks universality.

上記特許文献3の制震壁は、周辺架構の上辺フレームに上半壁を固定し、下辺フレームに下半壁を固定し、上半壁と下半壁との境界部分に極低降伏点鋼等で製作した履歴減衰部材を組み入れるという手順が要求される上に、履歴減衰部材の上縁に剪断抵抗板を取り付け、この剪断抵抗板を挟む剪断力伝達部材を上半壁の下縁に固定して設ける等々、構造の複雑さ、取り付け設置作業の面倒さがある。   The damping wall of the above-mentioned Patent Document 3 is manufactured with an ultra-low yield point steel or the like at the boundary between the upper half wall and the lower half wall, with the upper half wall fixed to the upper frame of the peripheral frame, the lower half wall fixed to the lower frame. In addition to requiring a procedure of incorporating a hysteresis damping member, a shear resistance plate is attached to the upper edge of the hysteresis damping member, and a shear force transmission member sandwiching the shear resistance plate is fixed to the lower edge of the upper half wall, etc. The complexity of the structure and the installation and installation work are cumbersome.

上記特許文献4、5の制震壁は、粘性流体を収容した外容器壁と、前記外容器壁内に位置して粘性流体の粘性抵抗を受ける抵抗壁板を固定したいわゆる粘性壁構造であるから、先ず粘性流体の恒久的な品質保証を如何にして達成するかの問題、及び粘性流体を収容した外容器壁、及び前記外容器壁内に位置して粘性流体の粘性抵抗を受ける抵抗壁板の関係を保持しつつ、如何にして周辺架構の面内へ組み込むかの技術的な問題が大きい。   The vibration control walls of Patent Documents 4 and 5 have a so-called viscous wall structure in which an outer container wall that contains a viscous fluid and a resistance wall plate that is located in the outer container wall and receives the viscous resistance of the viscous fluid are fixed. First, the problem of how to achieve the permanent quality assurance of the viscous fluid, the outer container wall containing the viscous fluid, and the resistance wall located within the outer container wall and receiving the viscous resistance of the viscous fluid There is a great technical problem of how to incorporate it into the plane of the peripheral frame while maintaining the relationship of the plates.

ところで、波形鋼板の力学的特性について着目すると、次の特徴が認められる。なお、本発明で言う波形鋼板とは、JIS規格では「鋼板製波板」と記載され、現業では単に折り板とか波板とも称されているもので、断面形状としては図9A〜Dに例示した台形波形状(A)、矩形波形状(B)、三角波形状(C)、円弧波形状(D)などを包含する。
(剪断力に対して)
図6に例示したように、波形鋼板は、折り板になっている一枚一枚が剪断力に対して抵抗し、その集合としての全体が剪断力に抵抗する。折り板になっているので、剪断座屈長さが短く、その剪断強度を平板と比較した場合、剪断耐力ははるかに大きい。しかも、剪断耐力及び剛性は、鋼板の材質固有の強度のほか、板厚の大きさ、折り板のピッチ及び波高の大きさにより、かなり自由に制御可能である。
(軸力及び曲げに対して)
波形鋼板は折り板になっているので、波形の筋に直角な軸力に対しては、図7に例示したようにアコーディオンのごとく自由に伸び縮みして、平板に比較すると剛性、耐力ははるかに小さい。また、波形面内の曲げに対しても、図8に例示したようにアコーディオンのごとく自由に伸び縮みし、平板に比較すると剛性、耐力ははるかに小さい。
一方、波形の筋に直角な方向の面外力(曲げ及び剪断)に対する剛性、耐力は、折り板になっているので充分に大きい。しかし、波形の筋に平行な方向の面外曲げ及び剪断に対しては、折り板になっているが故に抵抗は小さいのである。
By the way, paying attention to the mechanical characteristics of the corrugated steel sheet, the following features are recognized. The corrugated steel sheet referred to in the present invention is described as “steel plate corrugated sheet” in the JIS standard, and is also simply referred to as a folded sheet or corrugated sheet in the current business, and the cross-sectional shapes are illustrated in FIGS. The trapezoidal waveform (A), the rectangular waveform (B), the triangular waveform (C), the circular waveform (D), and the like are included.
(For shear force)
As illustrated in FIG. 6, each of the corrugated steel plates that are folded plates resists the shearing force, and the whole as a set resists the shearing force. Since it is a folded plate, its shear buckling length is short, and its shear strength is much greater when its shear strength is compared with that of a flat plate. Moreover, the shear strength and rigidity can be controlled quite freely by the strength of the material of the steel plate, the thickness of the plate, the pitch of the folded plate, and the wave height.
(For axial force and bending)
Since the corrugated steel plate is a folded plate, the axial force perpendicular to the corrugated streak is freely expanded and contracted like an accordion as illustrated in FIG. Small. Also, with respect to the bending in the corrugated plane, as shown in FIG. 8, it expands and contracts freely like an accordion, and its rigidity and proof stress are much smaller than that of a flat plate.
On the other hand, the rigidity and proof strength against the out-of-plane force (bending and shearing) in the direction perpendicular to the corrugated streaks are sufficiently large because they are folded plates. However, the resistance to the out-of-plane bending and shearing in the direction parallel to the corrugated streaks is small because they are folded plates.

そこで、本発明の目的は、上記した力学特性を有する波形鋼板を低降伏点鋼で製作し、その波形の筋を水平方向に向けた配置で壁板に使用することにより、面内の曲げ及び剪断に対する剪断耐力及び剛性が大きく、しかもその設計自由度が高く、剪断変形時の塑性エネルギ吸収能力が大きい制震壁を提供することである。   Therefore, the object of the present invention is to produce a corrugated steel sheet having the above-mentioned mechanical properties from a low yield point steel, and to use the corrugated streaks in the horizontal direction in the wall plate, so that in-plane bending and An object of the present invention is to provide a damping wall having a large shearing resistance and rigidity against shearing, a high degree of design freedom, and a large plastic energy absorption capacity during shearing deformation.

本発明の次の目的は、波形鋼板を低降伏点鋼で製作し、その波形の筋を水平方向に向けた配置で壁板に使用することにより、面外の曲げ及び剪断に対する抵抗が小さく、また、周辺架構の柱が施工時荷重によって、又は鉄筋コンクリート造又は鉄骨鉄筋コンクリート造であるが故のコンクリートのクリープ、乾燥収縮により軸方向の縮みを起こしても、壁板が軸力を負担することがなく、力学性状に悪影響を及ぼすことがなく、地震時の剪断変形に対して良好な制震機能を発揮する制震壁を提供することである。   The next object of the present invention is to produce a corrugated steel sheet with a low yield point steel, and use the corrugated streak for the wall board in a horizontal orientation, thereby reducing out-of-plane bending and shearing resistance, Moreover, even if the columns of the surrounding frame are subjected to load during construction, or due to concrete creeping and drying shrinkage due to reinforced concrete structure or steel reinforced concrete structure, the wall plate may bear the axial force. It is also to provide a damping wall that exerts a good damping function against shear deformation during an earthquake without adversely affecting the mechanical properties.

本発明の更なる目的は、上記の如く波形鋼板を低降伏点鋼で製作し、その波形の筋を水平方向に向けた配置で壁板に使用した制震壁を具備する制震構造物を提供することである。   A further object of the present invention is to provide a vibration control structure having a vibration control wall made of a corrugated steel sheet made of low yield point steel as described above and used for the wall plate with the corrugated streak arranged in the horizontal direction. Is to provide.

請求項1に記載の制震壁では、水平力で層間変形を発生する周辺架構の面内に、低降伏点鋼で製作された波形鋼板が、その波形の筋を水平方向に向けた配置で組み入れられ、波形鋼板の横辺だけが周辺架構の梁と水平力の伝達が可能に接合されたことを特徴としている。In the damping wall according to claim 1, the corrugated steel plate made of the low yield point steel is disposed in the plane of the peripheral frame that generates the interlayer deformation by the horizontal force, with the corrugated streaks oriented in the horizontal direction. It is incorporated, and only the side of the corrugated steel plate is joined to the beam of the surrounding frame so that the horizontal force can be transmitted.
請求項2に記載の制震壁では、前記波形鋼板の縦辺とこれに相対峙する周辺架構の内面との間に剪断変形を許容する隙間を設け、又は前記隙間に剪断変形吸収部材が充填されていることを特徴としている。In the damping wall according to claim 2, a gap allowing shear deformation is provided between the vertical side of the corrugated steel sheet and the inner surface of the peripheral frame facing the corrugated steel sheet, or the gap is filled with a shear deformation absorbing member. It is characterized by being.
請求項3に記載の制震壁では、前記波形鋼板と周辺架構との接合は、周辺架構が鉄筋コンクリート造又は鉄骨鉄筋コンクリート造である場合、前記波形鋼板の周辺部にスタッドを設けてコンクリート部分の中へ埋め込み水平力の伝達が可能に接合されていることを特徴としている。In the vibration control wall according to claim 3, when the corrugated steel sheet and the peripheral frame are joined, when the peripheral frame is a reinforced concrete structure or a steel reinforced concrete structure, a stud is provided in the peripheral part of the corrugated steel sheet, It is characterized in that it is joined so that the horizontal force can be transmitted.
請求項4に記載の制震壁では、前記波形鋼板と周辺架構との接合は、周辺架構が現場打ち又はプレキャスト製の鉄筋コンクリート造若しくは鉄骨鉄筋コンクリート造、又は鉄骨造である場合、周辺架構から架構面内に向かって設けられたジョイント部材と前記波形鋼板の周辺部とがボルト止め又は溶接で水平力の伝達が可能に接合されていることを特徴としている。5. The vibration control wall according to claim 4, wherein the corrugated steel sheet and the peripheral frame are joined to the frame surface from the peripheral frame when the peripheral frame is a reinforced concrete structure, a steel reinforced concrete structure, or a steel structure made in the field or precast. A joint member provided inward and a peripheral portion of the corrugated steel plate are joined to each other so as to be able to transmit a horizontal force by bolting or welding.
請求項5に記載の制震構造物は、請求項1〜4の何れか1項に記載した制震壁を具備することを特徴としている。A damping structure according to a fifth aspect is characterized by including the damping wall according to any one of the first to fourth aspects.

本発明の制震壁は、面内の曲げ及び剪断力に対する剪断耐力と剪断剛性に優れる上に、剪断耐力および剪断剛性の制御の自由度が大きい波形鋼板を低降伏点鋼で製作しその波形の筋を水平方向に向けた配置で壁板に使用した構成であるから、剪断変形時の塑性エネルギ吸収能力が大きく、しかも軽量であり、現場での取り付け施工が簡単で容易である。 Damping wall of the present invention, on the excellent shear strength and shear stiffness against bending and shear forces in the plane, the degree of freedom is large corrugated steel control shear strength and shear stiffness manufactured at a low yield point steels, the Since the wavy lines are arranged on the wall plate in the horizontal direction, the plastic energy absorption capacity at the time of shear deformation is large and light, and the installation work on site is simple and easy.

本発明の制震壁は、波形鋼板を低降伏点鋼で製作しその波形の筋を水平方向に向けた配置で壁板に使用した構成であり、面外の曲げ及び剪断に対する抵抗が小さいから、この意味でも、制震壁の設計の自由度が大きいのである。 The damping wall of the present invention is a construction in which a corrugated steel plate is made of low yield point steel, and the corrugated streaks are used for the wall plate in a horizontal orientation, and has low resistance to out-of-plane bending and shearing. Therefore, in this sense as well, the degree of freedom in designing the damping wall is great.

更に、本発明の制震壁は、周辺架構の柱が施工時荷重によって、又は鉄筋コンクリート造又は鉄骨鉄筋コンクリート造であるが故のコンクリートのクリープ、乾燥収縮により軸方向の縮みを起こしても、壁板は軸力を負担せず、制震壁としての力学性状に悪影響を及ぼさず、地震時の剪断変形に対して良好な制震機能を発揮するのである。   Furthermore, the damping wall of the present invention is a wall plate even if the columns of the surrounding frame are shrunk in the axial direction due to load during construction, or due to concrete creep or dry shrinkage due to reinforced concrete or steel reinforced concrete. Does not bear the axial force, does not adversely affect the mechanical properties of the damping wall, and exhibits a good damping function against shear deformation during an earthquake.

本発明の制震構造物は、上記の如く波形鋼板を低降伏点鋼で製作しその波形の筋を水平方向に向けた配置で壁板に使用した制震壁を具備するから、制震壁の設計自由度が高く、構造物の躯体重量を大幅に軽減でき、また、現場における制震壁の取り付け施工を簡単、容易に行えるのである。 Seismic structure of the present invention, the corrugated steel as described above were manufactured at low yield steel, because comprising a seismic damping wall used for wallboard muscle of the waveform in an arrangement for the horizontal direction, Seismic The design freedom of the wall is high, the weight of the structural frame can be greatly reduced, and the installation and installation of the damping wall at the site can be done easily and easily.

AとBは本発明に係る制震壁の実施例1を示した立面図と断面図である。A and B are an elevation view and a sectional view showing Example 1 of the damping wall according to the present invention. 図1の制震壁の荷重−変形関係を示す性能図である。It is a performance figure which shows the load-deformation relationship of the damping wall of FIG. 本発明に係る制震壁の実施例2を示した立面図である。It is the elevation which showed Example 2 of the damping wall which concerns on this invention. AとBは本発明に係る制震壁の実施例3を示した立面図と断面図である。A and B are the elevation and sectional views showing Example 3 of the damping wall concerning the present invention. AとBは本発明に係る制震壁を適用した構造物の立面図と水平断面図である。A and B are an elevation view and a horizontal sectional view of a structure to which a damping wall according to the present invention is applied. 波形鋼板の剪断変形の状態を模式的に示した斜視図である。It is the perspective view which showed typically the state of the shear deformation of a corrugated steel plate. 波形鋼板の軸圧縮の状態を示した説明図である。It is explanatory drawing which showed the state of axial compression of a corrugated steel plate. 波形鋼板の曲げの状態を示した説明図である。It is explanatory drawing which showed the state of the bending of a corrugated steel plate. A〜Dは波形鋼板の異なる断面形状を示した説明図である。AD is explanatory drawing which showed the different cross-sectional shape of a corrugated steel plate.

水平力で層間変形を発生する周辺架構の面内に、低降伏点鋼で製作された波形鋼板、又は普通鋼板で製作された波形鋼板における波形の一部分を低降伏点鋼板と置換して成る合成波形鋼板を、その波形の筋を水平方向に向けた配置で組み入れ、周辺架構と波形鋼板とを水平力の伝達が可能に接合して実施する。   Synthetic structure in which the corrugated steel plate made of low yield point steel or the corrugated steel plate made of ordinary steel plate is replaced with the low yield point steel plate in the plane of the peripheral frame that generates interlaminar deformation by horizontal force. The corrugated steel sheet is incorporated by arranging the corrugated streaks in a horizontal direction, and the peripheral frame and the corrugated steel sheet are joined to each other so that a horizontal force can be transmitted.

図1A、Bは、請求項1記載の発明に係る制震壁の実施例を示す。
水平力で層間変形を発生する周辺架構の代表例として示した、柱1と梁2とから成る柱梁架構の架構面内に、低降伏点鋼で製作された波形鋼板3を、その波形の筋を水平方向に向けた配置で組み入れ、柱梁架構1、2と波形鋼板3とを水平力の伝達が可能に接合した構成である。
1A and 1B show an embodiment of a damping wall according to the first aspect of the present invention.
A corrugated steel plate 3 made of low-yield-point steel is provided in the frame surface of a column beam frame composed of columns 1 and 2 as shown as a typical example of a peripheral frame that generates interlayer deformation due to horizontal force. In this configuration, the bars are incorporated in a horizontal orientation, and the column beam frames 1 and 2 and the corrugated steel plate 3 are joined so that a horizontal force can be transmitted.

上記の特許文献2でも説明したが、低降伏点鋼板を大きな壁板として使用する場合は、通常、剪断座屈を防止するために多くの補強リブを組み入れる必要があるが、本発明で採用した波形鋼板3は基本的に折り板形状であるが故に剪断座屈長さが短く、その剪断強度を平板と比較した場合、剪断耐力ははるかに大きいので基本的に補強リブを組み入れる必要はないが、仮に必要になったとしても補強リブは少なくて済む。   As described in Patent Document 2 above, when a low yield point steel plate is used as a large wall plate, it is usually necessary to incorporate many reinforcing ribs in order to prevent shear buckling. Since the corrugated steel plate 3 is basically a folded plate shape, the shear buckling length is short. When the shear strength is compared with that of a flat plate, the shear strength is much larger, so it is not necessary to basically incorporate a reinforcing rib. Even if it is necessary, there are few reinforcing ribs.

それでいて、水平力に対しては、上述したように、波形鋼板3の折り板になっている一枚一枚が剪断力に対して抵抗し(図6)、その集合としての全体が剪断力に抵抗し、低降伏点鋼板に特有の剪断降伏を生じて、入力した地震エネルギを吸収し、外力の制御を可能にすると共に、波形鋼板3の履歴ダンパー効果によって構造物の変形を制御可能である。その荷重−変形関係を例示すると、図2に示したように、高耐力で変形を吸収する能力に余裕があり、靱性に優れた性状を発揮する。   Nevertheless, with respect to the horizontal force, each of the folded plates of the corrugated steel plate 3 resists the shearing force as described above (FIG. 6), and the whole as a set is not subjected to the shearing force. It resists and generates a shear yield peculiar to the low yield point steel plate, absorbs the input seismic energy, enables control of external force, and can control deformation of the structure by the hysteresis damper effect of the corrugated steel plate 3. . As an example of the load-deformation relationship, as shown in FIG. 2, there is a margin in the ability to absorb deformation with high proof stress, and the properties excellent in toughness are exhibited.

しかも波形鋼板3は折り板になっているので、剪断耐力及び剛性は、鋼材の材質固有の強度のほか、板厚の大きさ(通例9mm〜22mm程度)、波形のピッチ(通例500mm〜700mm程度)及び波高の大きさ(通例80mm〜150mm程度)、波形鋼板3の重ね合わせ枚数などの設計如何により、かなり自由に制御可能である。   Moreover, since the corrugated steel plate 3 is a folded plate, the shear strength and rigidity are not only the strength inherent to the material of the steel material, but also the size of the plate thickness (typically about 9 mm to 22 mm) and the corrugated pitch (typically about 500 mm to 700 mm). ) And the wave height (usually about 80 mm to 150 mm) and the number of overlapping of the corrugated steel plates 3 can be controlled considerably freely.

また、波形鋼板3は折り板になっているので、波形の筋に直角な軸力、即ち鉛直力に対してはアコーディオンのごとく自由に伸び縮みし(図7)、平板に比較すると剛性、耐力ははるかに小さい。波形面内の曲げに対しても、アコーディオンのごとく自由に伸び縮みするので(図8)、平板に比較すると剛性、耐力ははるかに小さい。したがって、柱梁架構1、2の柱1が施工時荷重によって、又は鉄筋コンクリート造又は鉄骨鉄筋コンクリート造であるが故のコンクリートのクリープ、乾燥収縮により軸方向の縮みを生じても、波形鋼板3は軸力を負担せず、制震壁としての力学性状に悪影響を受けることはないから、施工時及び供用時において附加軸力が導入されることはなく、波形鋼板3の剪断座屈強度及び靱性は高く維持され、地震時の剪断変形に対しては経年変化を生ずることなく良好な制震機能を発揮する。   Further, since the corrugated steel plate 3 is a folded plate, the axial force perpendicular to the corrugated streak, that is, the vertical force, freely expands and contracts like an accordion (FIG. 7), and has rigidity and proof strength compared to a flat plate. Is much smaller. Even when bending in the corrugated plane, it expands and contracts freely like an accordion (FIG. 8), so its rigidity and yield strength are much smaller than those of flat plates. Therefore, even if the columns 1 of the column beam frames 1 and 2 are contracted in the axial direction due to load during construction, or due to concrete creeping and drying shrinkage due to reinforced concrete or steel reinforced concrete, the corrugated steel plate 3 is Since the load is not burdened and the mechanical properties of the damping wall are not adversely affected, no additional axial force is introduced during construction and operation, and the shear buckling strength and toughness of the corrugated steel sheet 3 are It is maintained at a high level and exhibits good seismic control function without causing secular change against shear deformation during an earthquake.

一方、波形の筋に直角な方向の面外力(曲げ及び剪断)に対する剛性、耐力は、折り板になっているので充分に大きいが、波形の筋に平行な方向の面外力(曲げ及び剪断)に対しては、折り板になっているが故に抵抗は小さい。よって、上記構成の制震壁を直交する2方向に配置する場合の設計の自由度は極めて高いのである。   On the other hand, the rigidity and strength against out-of-plane forces (bending and shearing) in the direction perpendicular to the corrugated streaks are sufficiently large because they are folded plates, but out-of-plane forces (bending and shearing) in directions parallel to the corrugated streaks. However, the resistance is small because it is a folded plate. Therefore, the degree of freedom in design when the damping wall having the above-described configuration is arranged in two orthogonal directions is extremely high.

次に、上述した柱梁架構1、2と波形鋼板3との水平力の伝達が可能な接合は、基本的には上下の梁2と波形鋼板3の上下辺との接合が行われる。波形鋼板3と左右の柱1との接合は、行うとしても補助的な接合である。   Next, the above-described joint capable of transmitting a horizontal force between the column beam frames 1 and 2 and the corrugated steel sheet 3 is basically performed by joining the upper and lower beams 2 to the upper and lower sides of the corrugated steel sheet 3. The corrugated steel plate 3 and the left and right columns 1 are joined to each other, if any.

波形鋼板3と周辺架構とを接合する手段としては、周辺架構が鉄筋コンクリート造又は鉄骨鉄筋コンクリート造である場合は、既往技術として知られているので図示を省略したが、波形鋼板3の周辺部に例えばスタッド等の剪断力伝達要素を設けて鉄筋コンクリート造部分の中へ埋め込み水平力の伝達が可能に接合する構成が好適に実施される(請求項3に記載した発明)
周辺架構が現場打ち又はプレキャスト製の鉄筋コンクリート造又は鉄骨鉄筋コンクリート造、若しくは鉄骨造である場合は、やはり既往技術として知られているので図示することは省略したが、周辺架構から架構面内に向かって突き出るジョイント部材を設け、このジョイント部材と波形鋼板3の周辺部とをボルト止め又は溶接等の手段で水平力の伝達が可能に接合する(請求項4に記載した発明)。
As a means for joining the corrugated steel plate 3 and the peripheral frame, when the peripheral frame is reinforced concrete or steel reinforced concrete, it is known as a prior art and is not shown. A structure in which a shearing force transmitting element such as a stud is provided to join in a reinforced concrete structure so that a horizontal force can be transmitted is suitably implemented (the invention according to claim 3).
If the surrounding frame is cast-in-place or precast reinforced concrete, or steel-framed reinforced concrete, or steel-framed, it is also known as a conventional technology, so illustration is omitted. A protruding joint member is provided, and the joint member and the peripheral portion of the corrugated steel plate 3 are joined together by means such as bolting or welding so that a horizontal force can be transmitted (invention described in claim 4).

上記したように、波形鋼板3と柱1との接合は、行うとしても補助的な接合でしかないと説明したが、図3に示した実施例のように、波形鋼板3の縦辺とこれに相対峙する柱1の内面との間に剪断変形を許容する隙間4を積極的に設けて、大変形時におけるコンクリート造柱のコンクリート部分が波形鋼板3によって局部破壊されことを防止する構成で実施することも好ましい。但し、前記のような構成にすると、波形鋼板3は隙間4の分だけ制震壁としての剪断剛性及び耐力は低下する。その対策として、前記隙間4の部位に発泡スチロール成形品等の剪断変形伝達部材を充填して、いわゆる柔接合構造で実施することも好ましい(請求項5に記載した発明)。   As described above, it has been described that the corrugated steel plate 3 and the column 1 are joined only if they are auxiliary, but as in the embodiment shown in FIG. With a configuration in which a gap 4 that allows shear deformation is positively provided between the inner surface of the column 1 facing the wall and the concrete portion of the concrete column during large deformation is prevented from being locally destroyed by the corrugated steel plate 3. It is also preferable to carry out. However, with the configuration as described above, the corrugated steel sheet 3 is reduced in shear rigidity and proof stress as a damping wall by the gap 4. As a countermeasure, it is also preferable to carry out a so-called flexible joint structure by filling a portion of the gap 4 with a shear deformation transmission member such as a polystyrene foam molded product (the invention according to claim 5).

次に、図4A、Bは、請求項2記載の発明に係る制震壁の実施例を示す。   Next, FIG. 4A, B shows the Example of the damping wall based on invention of Claim 2. As shown in FIG.

水平力で層間変形を発生する周辺架構として例示した柱梁架構1、2の架構面内に、普通鋼板で製作された波形鋼板5における波形の一部分を低降伏点鋼板6と置換して成る合成波形鋼板とし、この合成波形鋼板を、その波形の筋を水平方向に向けた配置で組み入れ、柱梁架構1、2と合成波形鋼板5、6とを水平力の伝達が可能に接合した構成である。   A composite formed by substituting a portion of the corrugated steel plate 5 made of ordinary steel plate with a low yield point steel plate 6 in the frame surfaces of the column beam frames 1 and 2 exemplified as the peripheral frames that generate interlayer deformation by horizontal force. Corrugated steel sheet, this composite corrugated steel sheet is incorporated in such a manner that the corrugated streaks are oriented in the horizontal direction, and the column beam frames 1 and 2 and the composite corrugated steel sheets 5 and 6 are joined so as to be able to transmit horizontal force. is there.

普通鋼板で製作された波形鋼板5における波形の一部分を低降伏点鋼板6と置換して成る合成波形鋼板の一例として図3Bに示したものは、波形の山の部分(又は逆に谷の部分。)を切除して、そこに低降伏点鋼板6を溶接等の手段で接合して置き換え一体化した構成である。この場合にも、低降伏点鋼板6は波形形状をなす波形鋼板5における波形の一部分、即ち、波形の山の部分(又は逆に谷の部分。)を形成するにすぎないので、補剛リブ又は補強リブを組み入れて剪断座屈を防止する配慮は必要ない。   As an example of the synthetic corrugated steel plate obtained by replacing a part of the corrugated steel plate 5 made of ordinary steel plate with the low yield point steel plate 6, FIG. 3B shows a corrugated peak portion (or conversely a trough portion). .) Is excised, and the low yield point steel plate 6 is joined and replaced therewith by means such as welding. In this case as well, the low yield point steel plate 6 forms only a part of the corrugated steel sheet 5 having a corrugated shape, that is, a corrugated peak portion (or conversely a valley portion). Alternatively, it is not necessary to take into account the incorporation of reinforcing ribs to prevent shear buckling.

この合成波形鋼板5、6による制震壁は、当然のことながら、普通鋼板で製作された波形鋼板5に特有の剛性と耐力、及び低降伏点鋼板6に特有の剪断降伏により、高耐力でしかもエネルギ吸収能力が大きく、靱性に優れた制震機能を発揮する。   Naturally, the damping wall made of the synthetic corrugated steel plates 5 and 6 has a high strength because of the rigidity and strength inherent to the corrugated steel plate 5 made of ordinary steel plates and the shear yield inherent to the low yield point steel plate 6. Moreover, it has a large energy absorption capacity and exhibits a vibration control function with excellent toughness.

なお、上記実施例3の場合にも、上記実施例1と同様に、合成波形鋼板を構成する普通鋼板で製作された波形鋼板5及びその一部をなす低降伏点鋼板6それぞれの板厚、重ね合わせ枚数、波形のピッチと波高、鋼板強度の適切な設計により剛性と耐力の大きさが適切に制御される(請求項5に記載した発明)。   In the case of Example 3 as well, as in Example 1 above, the corrugated steel plate 5 made of a plain steel plate constituting the composite corrugated steel plate and the plate thickness of each of the low yield point steel plates 6 forming a part thereof, Rigidity and proof strength are appropriately controlled by appropriate design of the number of overlapping sheets, the pitch and wave height of the corrugations, and the strength of the steel sheet (the invention according to claim 5).

また、合成波形鋼板と周辺架構の接合方法、及び剪断変形を許容する隙間の形成と、前記隙間を剪断変形吸収部材で充填すること等々は、全く同様な条件で実施される。   Further, the joining method of the synthetic corrugated steel sheet and the peripheral frame, the formation of the gap allowing the shear deformation, the filling of the gap with the shear deformation absorbing member, and the like are performed under exactly the same conditions.

最後に、図5A、Bは、上述の請求項1〜6に記載した発明に係る制震壁を適用した構造物の一例を示す。   Finally, FIGS. 5A and 5B show an example of a structure to which the damping wall according to the invention described in claims 1 to 6 is applied.

図中の符号10が上記波形鋼板3又は合成波形鋼板による制震壁を指し、同制震壁10が構造物のフレーム架構の中にいわば市松模様状の配置に組み込まれた実施例を示す。勿論、制震壁10の適用例は図示の限りではなく、コア部その他へ組み込んで実施することができる。   Reference numeral 10 in the figure denotes a vibration control wall made of the corrugated steel plate 3 or the synthetic corrugated steel plate, and the vibration control wall 10 is incorporated in a so-called checkered pattern arrangement in the frame frame of the structure. Of course, the application example of the damping wall 10 is not limited to the illustration, and can be implemented by being incorporated in the core portion or the like.

1 柱
2 梁
3 波形鋼板
4 隙間
5 普通鋼で製作した波形鋼板
6 低降伏点鋼板
10 制震壁
1 Column 2 Beam 3 Corrugated Steel Plate 4 Clearance 5 Corrugated Steel Plate 6 Made of Normal Steel 6 Low Yield Point Steel Plate 10 Damping Wall

Claims (5)

水平力で層間変形を発生する周辺架構の面内に、低降伏点鋼で製作された波形鋼板が、その波形の筋を水平方向に向けた配置で組み入れられ、波形鋼板の横辺だけが周辺架構の梁と水平力の伝達が可能に接合されたことを特徴とする制震壁。   Corrugated steel plates made of low-yield point steel are incorporated in the plane of the peripheral frame that generates interlaminar deformation due to horizontal force, with the corrugated streaks oriented in the horizontal direction, and only the sides of the corrugated steel plates are in the periphery. Damping wall characterized by being joined to the beam of the frame so that horizontal force can be transmitted. 前記波形鋼板の縦辺とこれに相対峙する周辺架構の内面との間に剪断変形を許容する隙間を設け、又は前記隙間に剪断変形吸収部材が充填されていることを特徴とする、請求項1に記載した制震壁。   A gap that allows shear deformation is provided between a vertical side of the corrugated steel sheet and an inner surface of a peripheral frame that faces the corrugated steel sheet, or a shear deformation absorbing member is filled in the gap. Damping wall described in 1. 前記波形鋼板と周辺架構との接合は、周辺架構が鉄筋コンクリート造又は鉄骨鉄筋コンクリート造である場合、前記波形鋼板の周辺部にスタッドを設けてコンクリート部分の中へ埋め込み水平力の伝達が可能に接合されていることを特徴とする請求項1又は2に記載の制震壁。   When the corrugated steel plate and the surrounding frame are reinforced concrete or steel-framed reinforced concrete, the corrugated steel plate is connected to the peripheral part of the corrugated steel plate so that the horizontal force can be transmitted into the concrete part by providing studs. The damping wall according to claim 1, wherein the damping wall is provided. 前記波形鋼板と周辺架構との接合は、周辺架構が現場打ち又はプレキャスト製の鉄筋コンクリート造若しくは鉄骨鉄筋コンクリート造、又は鉄骨造である場合、周辺架構から架構面内に向かって設けられたジョイント部材と前記波形鋼板の周辺部とがボルト止め又は溶接で水平力の伝達が可能に接合されていることを特徴とする請求項1又は2に記載の制震壁。   When the corrugated steel sheet and the peripheral frame are made of cast-in-place or precast reinforced concrete, steel reinforced concrete, or steel, the joint member provided from the peripheral frame toward the frame surface The damping wall according to claim 1 or 2, wherein a peripheral portion of the corrugated steel plate is joined by bolting or welding so that a horizontal force can be transmitted. 請求項1〜4の何れか1項に記載した制震壁を具備することを特徴とする、制震構造物。   A vibration control structure comprising the vibration control wall according to any one of claims 1 to 4.
JP2009091362A 2009-04-03 2009-04-03 Vibration control wall and vibration control structure Pending JP2009150221A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110805201A (en) * 2019-11-21 2020-02-18 大连交通大学 Replaceable coupling beam with dual energy consumption capability

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JPH09242345A (en) * 1996-03-09 1997-09-16 Ronbitsuku Japan:Kk Seismic reinforcing method and device thereof
JPH11181920A (en) * 1997-12-25 1999-07-06 Nkk Corp Steel-made earthquake-resistant wall
JP2001123567A (en) * 1999-10-26 2001-05-08 Soken Sekkei:Kk Vibration damping wall for wooden building
JP2003176582A (en) * 2001-12-10 2003-06-24 Nippon Kokan Light Steel Kk Disaster resistant wall made of corrugated plate

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JPH09242345A (en) * 1996-03-09 1997-09-16 Ronbitsuku Japan:Kk Seismic reinforcing method and device thereof
JPH11181920A (en) * 1997-12-25 1999-07-06 Nkk Corp Steel-made earthquake-resistant wall
JP2001123567A (en) * 1999-10-26 2001-05-08 Soken Sekkei:Kk Vibration damping wall for wooden building
JP2003176582A (en) * 2001-12-10 2003-06-24 Nippon Kokan Light Steel Kk Disaster resistant wall made of corrugated plate

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110805201A (en) * 2019-11-21 2020-02-18 大连交通大学 Replaceable coupling beam with dual energy consumption capability

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