JP4195493B1 - Wooden house structure - Google Patents

Wooden house structure Download PDF

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JP4195493B1
JP4195493B1 JP2007237816A JP2007237816A JP4195493B1 JP 4195493 B1 JP4195493 B1 JP 4195493B1 JP 2007237816 A JP2007237816 A JP 2007237816A JP 2007237816 A JP2007237816 A JP 2007237816A JP 4195493 B1 JP4195493 B1 JP 4195493B1
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girder
column
wooden house
frame
foundation
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JP2009068256A (en
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和田章
玉木康裕
安藤純二
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Just Co., Ltd.
Tokyo Institute of Technology NUC
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Just Co., Ltd.
Tokyo Institute of Technology NUC
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Abstract

【課題】木造家屋の構成要素である土台桁と柱材間を緊結せずに地震時の倒壊を防ぐ、木造家屋の構造を提供する。
【解決手段】基礎の上面に水平に配置した土台桁と、前記土台桁上に垂直に立設した柱材と、前記柱材間に水平に架設した桁材と、により構成した木造家屋の構造であって、前記土台桁と前記柱材との結合部を緊結せず、前記柱材の下端が土台桁から浮き上がり可能であることを特徴とする、木造家屋の構造。
【選択図】図１The present invention provides a structure of a wooden house that prevents collapse during an earthquake without tightly connecting a base beam and a pillar material, which are constituent elements of a wooden house.
A structure of a wooden house comprising a base girder arranged horizontally on the upper surface of a foundation, a pillar material standing vertically on the foundation girder, and a girder laid horizontally between the pillar members. The structure of the wooden house is characterized in that the bottom part of the pillar material can be lifted from the foundation girder without connecting the connecting portion between the foundation girder and the pillar material.
[Selection] Figure 1

Description

本発明は、地震による倒壊を防ぐ、木造家屋の構造に関するものである。   The present invention relates to a structure of a wooden house that prevents collapse due to an earthquake.

一般に軸組工法の木造家屋は、基礎の上面に水平に設置する土台桁、土台桁の上面に垂直に立設する柱材、および柱材間に水平に架設する梁によって構成する。
このような木造家屋の耐震構造として、土台桁や柱材、梁等が結合する結合部を金具により緊結して固定する構成（例えば特許文献１）や、ワイヤーにより土台桁と梁とを緊結して固定する構成（例えば特許文献２）等が採用されている。
特開２００６−３０７４４０号公報 特開２００７−１５４４７９号公報 Generally, a wooden house with a frame construction method is constituted by a base girder that is installed horizontally on the upper surface of a foundation, a column member that stands vertically on the upper surface of the base girder, and a beam that is installed horizontally between the column members.
As a seismic structure of such a wooden house, a structure in which a base girder, a column member, a beam and the like are joined and fixed by a metal fitting (for example, Patent Document 1), or a base girder and a beam are tightly connected by a wire. The structure (for example, patent document 2) etc. which are fixed is used.
JP 2006-307440 A JP 2007-154479 A

しかしながら、前記した木造家屋の耐震構造は、金具やワイヤーによって構成部材を緊結するため、地震により作用する力が緊結した部位に集中して金具やワイヤーが破損してしまい、家屋が倒壊するおそれがある。   However, since the earthquake-resistant structure of the wooden house described above connects the structural members with metal fittings and wires, the force acting by the earthquake is concentrated on the site where the earthquake is tight, and the metal fittings and wires are damaged, and the house may collapse. is there.

本発明は、木造家屋の構成要素である土台桁と柱材間を緊結せずに地震時の倒壊を防ぐ、木造家屋の構造を提供することを目的とする。   An object of this invention is to provide the structure of a wooden house which prevents collapse at the time of an earthquake, without connecting between the base beam and pillar material which are the components of a wooden house.

上記目的を達成するためになされた本願の第１発明は、基礎の上面に水平に配置した土台桁と、前記土台桁上に垂直に立設した柱材と、前記柱材の上端間に水平に架設した上桁材と、前記柱材の下端間に水平に架設した下桁材と、により構成した木造家屋の構造であって、前記柱材と、前記上桁材と、前記下桁材と、によって矩形の枠組を構成し、枠組内には筋違又は合板を配置し、前記土台桁と前記柱材との結合部を緊結せず、前記柱材の下端が土台桁から浮き上がり可能であり、前記柱材と平行に立設した緊張材を有し、前記緊張材の下端は前記基礎に固定し、前記緊張材の上端は、圧縮した弾性部材を介して、前記上桁材に取り付け、前記枠組の一方の柱材が浮き上がった際に、前記枠組は矩形の状態を保持し、前記弾性部材によって、前記枠組が浮き上がる前の状態に復元可能に構成したことを特徴とする、木造家屋の構造を提供する。
本願の第２発明は、第１発明の木造家屋の構造であって、前記柱材又は前記上桁材の一部にダンパーを設け、前記ダンパーによって前記緊張材を保持したことを特徴とする、木造家屋の構造を提供する。
本願の第３発明は、第１発明又は第２発明の木造家屋の構造であって、前記枠組の柱材間に、中間桁材を水平に架設し、前記緊張材の上端は弾性部材を介して、前記中間桁材に取り付けることを特徴とする、木造家屋の構造を提供する。
The first invention of the present application made to achieve the above object is a horizontal girder arranged horizontally on the upper surface of a foundation, a column member standing vertically on the foundation girder, and a horizontal column between upper ends of the column members. It is a structure of the wooden house comprised by the upper girder material constructed | assembled by the lower girder material horizontally constructed between the lower ends of the said column material, Comprising : The said column material, the said upper girder material, and the said lower girder material And form a rectangular frame, arrange a strut or plywood in the frame, do not bind the connecting part of the base beam and the column material, the lower end of the column material can be lifted from the base beam There is a tendon standing upright in parallel with the pillar material, the lower end of the tendon is fixed to the foundation, and the upper end of the tendon is attached to the upper girder via a compressed elastic member , when one of the pillar of the framework is lifted, the framework holds a rectangular state by the elastic member Characterized in that the recoverable configured to the condition before the framework is lifted, to provide a structure of a wooden house.
2nd invention of this application is the structure of the wooden house of 1st invention, Comprising: A damper was provided in a part of the pillar material or the upper girder material, The tension material was held by the damper, Provide wooden house structure.
A third invention of the present application is the structure of the wooden house of the first invention or the second invention, wherein an intermediate girder material is horizontally installed between the column members of the frame, and the upper end of the tension member is interposed through an elastic member. Thus, a structure of a wooden house is provided, which is attached to the intermediate beam member.

本発明は、上記した課題を解決するための手段により、次のような効果の少なくとも一つを得ることができる。
＜１＞柱材が土台桁から浮き上がり、地震等によって作用する力を分散するため、家屋の倒壊を防ぐことができる。
＜２＞基礎に固定した緊張材を、弾性部材を介して、柱材に架設した桁材に取り付けるため、柱材及び桁材にかかる力を弾性部材で吸収して軽減することができる。
＜３＞弾性部材の復元力によって、柱材が土台桁から浮き上がっても、元の位置に戻るため、家屋の倒壊を防ぐことができる。
＜４＞柱材と緊張材との間に設置したダンパー部分に相対変形・相対速度が生じるため、ダンパーが地震エネルギーを吸収し、地震時の応答を低減することができる。
＜５＞緊張部材、弾性材、ダンパーのいずれも安価であるため、低価格で構築することができる。 The present invention can obtain at least one of the following effects by means for solving the above-described problems.
<1> Since the pillar material is lifted from the base girder and disperses the force acting by an earthquake or the like, the collapse of the house can be prevented.
<2> Since the tension material fixed to the foundation is attached to the girder erected on the column material via the elastic member, the force applied to the column material and the girder material can be absorbed and reduced by the elastic member.
<3> Due to the restoring force of the elastic member, even if the column material is lifted from the base girder, it returns to the original position, so that the house can be prevented from collapsing.
<4> Since a relative deformation and a relative speed are generated in the damper portion installed between the pillar material and the tension material, the damper absorbs the seismic energy and can reduce the response at the time of the earthquake.
<5> Since all of the tension member, the elastic material, and the damper are inexpensive, they can be constructed at a low price.

以下、図面を参照しながら本発明の実施の形態について説明する。   Hereinafter, embodiments of the present invention will be described with reference to the drawings.

＜１＞本発明の全体の構成
本発明の木造家屋は、コンクリート基礎７０と、その上面に配置した土台桁１０、土台桁１０上に立設した柱材２０、柱材２０間に架設した上桁材３１、下桁材３２、コンクリート基礎７０に立設した緊張材４０、緊張材４０の上部に設けた弾性部材５０、及び柱材２０の一部に設けたダンパー６０からなる。（図１）
以下、各構成部材について詳述する。 <1> Overall Configuration of the Present Invention A wooden house according to the present invention includes a concrete foundation 70, a base girder 10 disposed on the top surface thereof, a column member 20 erected on the base girder 10, and a bridge constructed between the column members 20. It consists of a girder 31, a lower girder 32, a tension member 40 erected on the concrete foundation 70, an elastic member 50 provided on the upper part of the tension member 40, and a damper 60 provided on a part of the column member 20. (Figure 1)
Hereinafter, each component will be described in detail.

＜２＞コンクリート基礎
コンクリート基礎７０はコンクリート製である。
コンクリート基礎７０は地盤上に配置するベタ基礎や布基礎であり、木造家屋の壁方向に連続して延設する。 <2> Concrete foundation The concrete foundation 70 is made of concrete.
The concrete foundation 70 is a solid foundation or a cloth foundation arranged on the ground, and extends continuously in the direction of the wall of the wooden house.

＜３＞土台桁
土台桁１０は木製の角材である。
土台桁１０はコンクリート基礎７０の上面に水平に設置する。 <3> Base Girder The base girder 10 is a wooden square.
The base girder 10 is installed horizontally on the upper surface of the concrete foundation 70.

＜４＞柱材
柱材２０は木製の角材である。
柱材２０は土台桁１０上に所定の間隔を設けて垂直に立設する。 <4> Column Material The column material 20 is a wooden square.
The column member 20 is erected vertically on the base beam 10 with a predetermined interval.

＜５＞柱材と土台桁との結合
土台桁１０の柱材２０を立設する位置には凹部１１を設ける。
一方、柱材２０の下端には凹部１１と対向するように凸部２３を設ける。凹部１１と凸部２３とを嵌合して、土台１０と柱材２０とを結合し、柱材２０を立設する。この際に、土台桁１０と柱材２０との結合部は金具等を用いた緊結構造としない。
また、凹部１１の断面を矩形とする。一方、凸部２３は、凹部１１と対向するように矩形にし、先端を上側が長辺となる逆台形とする。
このように凹部１１と凸部２３とを嵌合し、柱材２０が台形の斜辺方向に離脱しやすく、現状に復元しやすい構成とする。 <5> Coupling of Column Material and Base Girder A recess 11 is provided at a position where the column material 20 of the base beam 10 is erected.
On the other hand, a convex portion 23 is provided at the lower end of the column member 20 so as to face the concave portion 11. The concave portion 11 and the convex portion 23 are fitted, the base 10 and the pillar material 20 are coupled, and the pillar material 20 is erected. At this time, the connecting portion between the base beam 10 and the column member 20 is not a tight structure using metal fittings or the like.
Further, the recess 11 has a rectangular cross section. On the other hand, the convex portion 23 has a rectangular shape so as to face the concave portion 11 and has a tip that is an inverted trapezoid whose upper side is a long side.
Thus, the concave portion 11 and the convex portion 23 are fitted to each other, and the column member 20 is easily detached in the direction of the hypotenuse of the trapezoid and is easily restored to the current state.

＜６＞桁材
上桁材３１、下桁材３２は木製の角材である。
上桁材３１は柱材２０の上端間に水平に架設する。また、下桁材３２は柱材２０の下端間に水平に架設する。このように配置し、柱材２０と上桁材３１、及び下桁材３２とで矩形の枠組を構成する。
上桁材３１は屋根下の梁となる。
木造家屋が２階建の場合は、柱材２０の中央付近を１階部分の胴差しとなる中間桁材３３を架設して連結する。この際、柱材２０は中間桁材３３を間に挟む形で、下柱材２１と上柱材２２とに分けることもできる。
柱材２０間や上桁材３１、下桁材３２間は筋違８０や、合板（図示せず）によって補強する。 <6> Girder Material The upper girder material 31 and the lower girder material 32 are wooden squares.
The upper girder 31 is installed horizontally between the upper ends of the column members 20. Further, the lower girder 32 is installed horizontally between the lower ends of the column members 20. Arranged in this way, the column member 20, the upper beam member 31, and the lower beam member 32 constitute a rectangular frame.
The upper girder 31 is a beam under the roof.
When the wooden house is a two-story building, an intermediate girder member 33 is installed around the center of the column member 20 to serve as a trunk for the first floor part. At this time, the column member 20 can be divided into the lower column member 21 and the upper column member 22 with the intermediate beam member 33 interposed therebetween.
The space between the column members 20 and between the upper beam members 31 and the lower beam members 32 are reinforced by struts 80 or plywood (not shown).

＜７＞緊張材
緊張材４０は丸鋼や鉄筋からなる棒状部材である。
緊張材４０は下端をコンクリート基礎７０に埋設するなどして固定する。
緊張材４０は、柱材２０の下端間に架設する下桁材３２及び柱材２０の上端間に架設する上桁材３１を貫通する。
緊張材４０の上部はナット４１等の公知の手段により、上桁材３１の上面に位置させる。
ナット４１と上桁材３１との間には、弾性部材５０を緊張材４０に嵌装して配置する。（図２）
このように構成し、緊張材４０を柱材２０と平行に立設する。 <7> Tension material Tension material 40 is a rod-shaped member made of round steel or reinforcing steel.
The tendon 40 is fixed by embedding the lower end in the concrete foundation 70 or the like.
The tension material 40 penetrates the lower girder material 32 constructed between the lower ends of the column members 20 and the upper girder material 31 constructed between the upper ends of the column materials 20.
The upper part of the tension member 40 is positioned on the upper surface of the upper beam member 31 by a known means such as a nut 41.
Between the nut 41 and the upper girder 31, the elastic member 50 is fitted and disposed on the tendon 40. (Figure 2)
Constituting in this way, the tendon 40 is erected in parallel with the pillar 20.

＜８＞弾性部材
弾性部材５０はコイル状のスプリングや硬質ゴム、皿バネ、板バネ等からなる。
弾性部材５０は緊張材４０に嵌装する。
弾性部材５０は、緊張材４０に設けたナット４１等と上桁材３１とにより圧縮して挟持する。その結果、緊張材４０の上端は、上桁材３１の上部に取り付けることができる。
弾性部材５０を複数個用いる場合には、弾性部材５０を緊張材４０に嵌挿せずに周囲に配置し、プレート等によって圧縮して挟持する。（図３） <8> Elastic Member The elastic member 50 includes a coiled spring, hard rubber, a disc spring, a leaf spring, and the like.
The elastic member 50 is fitted to the tendon 40.
The elastic member 50 is compressed and sandwiched between the nut 41 and the like of the tension member 40 and the upper girder material 31. As a result, the upper end of the tension member 40 can be attached to the upper part of the upper beam member 31.
In the case where a plurality of elastic members 50 are used, the elastic members 50 are disposed around the elastic members 50 without being inserted into the tension members 40, and are compressed and sandwiched by a plate or the like. (Figure 3)

＜９＞ダンパー
ダンパー６０は筒体６１と、筒体６１内部の粘弾性体６２とにより構成する。（図４）
筒体６１は両端を開放した鋼製の筒状体である。
筒体６１の内径は緊張材４０よりも大きく構成する。
筒体６１には緊張材４０を挿通し、緊張材４０と筒体６１との間に粘弾性体６２を充填する。
筒体６１の長さは、内部に充填した粘弾性体６２の弾性力と粘性力とによって地震等によって作用する力を減衰することができる長さとする。
筒体６１の内部に充填する粘弾性体６２には、アクリル系粘弾性体半固定シート状のものや、高減衰ゴム系材料を溶かし込んだものなどを利用できる。
ダンパー６０は柱材２０の側面に取り付ける。（図５）
このように構成し、ダンパー６０に挿通した緊張材４０を、ダンパー６０内の粘弾性体６２によって保持した状態で柱材２０と平行に立設する。 <9> Damper The damper 60 is composed of a cylindrical body 61 and a viscoelastic body 62 inside the cylindrical body 61. (Fig. 4)
The cylinder 61 is a steel cylinder having both ends open.
The inner diameter of the cylinder 61 is configured to be larger than that of the tendon 40.
The tension member 40 is inserted into the cylindrical body 61, and a viscoelastic body 62 is filled between the tension material 40 and the cylindrical body 61.
The length of the cylinder 61 is set to a length that can attenuate the force acting by an earthquake or the like by the elastic force and the viscous force of the viscoelastic body 62 filled therein.
As the viscoelastic body 62 filled in the cylindrical body 61, an acrylic viscoelastic body semi-fixed sheet-like material, a material in which a high damping rubber material is melted, or the like can be used.
The damper 60 is attached to the side surface of the column member 20. (Fig. 5)
The tension member 40 configured as described above and inserted through the damper 60 is erected in parallel with the column member 20 while being held by the viscoelastic body 62 in the damper 60.

また、ダンパー６０は、取付治具６３と、粘弾性体６２を介して取付治具６３に取り付けた２枚のプレート６４と、により構成することもできる。（図６）
取付治具６３は板体６３１を柱材２０の長さ方向に平行に立設する。
プレート６４は鋼製の板状体である。
プレート６４は、板体６３１の両面に粘弾性体６２を介して取り付ける。
緊張材４０は２枚のプレート６４に溶接して固定する。
板体６３１とプレート６４の長さは、板体６３１とプレート６４との間の粘弾性体６２の弾性力と粘性力とによって地震等によって作用する力を減衰することができる長さとする。 The damper 60 can also be configured by an attachment jig 63 and two plates 64 attached to the attachment jig 63 via a viscoelastic body 62. (Fig. 6)
The mounting jig 63 stands the plate 631 parallel to the length direction of the column member 20.
The plate 64 is a steel plate.
The plate 64 is attached to both surfaces of the plate 631 via the viscoelastic body 62.
The tendon 40 is fixed by welding to the two plates 64.
The lengths of the plate 631 and the plate 64 are set such that the force acting by an earthquake or the like can be attenuated by the elastic force and the viscous force of the viscoelastic body 62 between the plate 631 and the plate 64.

［作用］
次に、上記した本発明の構造の作用を説明する。
＜１＞通常時
土台桁１０に立設した柱材２０と、柱材２０間に架設した上桁材３１、下桁材３２とで構成した矩形の枠組の上辺にあたる上枠材３１の上部には、弾性部材５０を介して緊張材４０を取り付ける。
弾性部材５０を圧縮した状態で取り付けるため、緊張材４０は引張した状態となる。
この構成によって、枠組となる柱材２０と上桁材３１、下桁材３２とよりなる枠組を、自重だけでなく弾性部材５０の復元力を加えた力で土台桁１０上に保持する。
このように柱材２０、上桁材３１、下桁材３２、土台桁１０を一体となって保持する。そのため、柱材２０と土台桁１０との結合部を緊結せずとも、構築する枠組が変形することがない。 [Action]
Next, the operation of the structure of the present invention described above will be described.
<1> Normal time At the upper part of the upper frame material 31 corresponding to the upper side of the rectangular frame structure composed of the column material 20 erected on the base girder 10 and the upper girder material 31 and the lower girder material 32 laid between the column materials 20 Attach the tendon 40 via the elastic member 50.
Since the elastic member 50 is attached in a compressed state, the tendon 40 is in a tensioned state.
With this configuration, the frame composed of the column member 20, the upper beam member 31, and the lower beam member 32, which is a frame, is held on the base beam 10 not only by its own weight but also by the force applied with the restoring force of the elastic member 50.
Thus, the column member 20, the upper beam member 31, the lower beam member 32, and the base beam 10 are held together. Therefore, the frame to be constructed will not be deformed without connecting the connecting portion between the column member 20 and the base beam 10.

＜２＞水平力作用時
＜２−１＞浮き上がり
柱材２０と土台桁１０との結合部は緊結しない。そのため、地震や台風によって家屋に力が作用し、その力が一定値以上に達したときには、柱材２０が土台桁１０から浮き上がり、家屋に作用する力が一点に集中することなく、枠組を構成する柱材２０、上桁材３１、下桁材３２に分散する。（図７）
柱材２０の下端間に架設した下桁材３２は、柱材２０が浮き上がっても枠組を矩形の状態に保持し続ける。
柱材２０と土台桁１０との結合部は、柱材２０の凸部１１の先端が逆台形状であるため、家屋に作用する力が一定値以上に達して柱材２０が浮き上がったときには凹部２３の上端部を、凸部１１の台形の斜面に沿って摺動する。そのため、浮き上がりやすく、戻る際にも台形の斜辺に沿って元の位置に復元しやすい。
また、枠組の重心が上方に移動することにより、浮き上がった柱材２０とは反対側の柱材２０を軸として重心を元の位置に戻そうとする下方への自然復元力も利用できる。 <2> At the time of horizontal force action <2-1> Lifting up The coupling | bond part of the column material 20 and the base girder 10 does not bind. Therefore, when a force is applied to the house due to an earthquake or a typhoon, and the force reaches a certain value or more, the pillar material 20 is lifted from the base girder 10 and the force acting on the house is not concentrated on one point, and the frame is configured. The column material 20, the upper girder material 31, and the lower girder material 32 are dispersed. (Fig. 7)
The lower girder member 32 installed between the lower ends of the column members 20 keeps the frame in a rectangular state even when the column members 20 are lifted.
The connecting portion between the column member 20 and the base girder 10 has a concave trapezoidal shape at the tip of the projection 11 of the column member 20, so that when the force acting on the house reaches a certain value or more and the column member 20 is lifted, a recess is formed. The upper end portion of 23 is slid along the trapezoidal slope of the convex portion 11. For this reason, it is easy to float up and to return to the original position along the hypotenuse of the trapezoid when returning.
Further, when the center of gravity of the frame moves upward, a downward natural restoring force that attempts to return the center of gravity to the original position about the column member 20 on the opposite side of the floating column member 20 can be used.

＜２−２＞緊張材、弾性部材の作用
木造家屋に作用する力が一定値以上に達すると、枠組を構成する柱材２０、上桁材３１、下桁材３２は上下方向及び水平方向に変位する。
一方、緊張材４０は下端をコンクリート基礎７０に固定しているため水平方向にしか変位しない。
そのため、上桁材３１と緊張材４０との間で相対変位が発生する。
上桁材３１と緊張材４０との相対変位によって弾性部材５０は、通常時の長さＡと圧縮時の長さＢの差（Ａ−Ｂ）長さだけ圧縮される。（図８）
柱材２０、上桁材３１及び下桁材３２によって構成した枠組には弾性部材５０の復元力が作用する。
よって弾性部材５０の復元力によって上桁材３１の変位を低減すると共に、柱材２０及び桁材３２を通常時の位置に復元する力が作用する。 <2-2> Action of tension material and elastic member When the force acting on the wooden house reaches a certain value or more, the column material 20, the upper girder material 31 and the lower girder material 32 constituting the frame are vertically and horizontally oriented. Displace.
On the other hand, the tension member 40 is displaced only in the horizontal direction because the lower end is fixed to the concrete foundation 70.
Therefore, a relative displacement occurs between the upper beam member 31 and the tension member 40.
The elastic member 50 is compressed by the difference (A−B) between the normal length A and the compressed length B by the relative displacement between the upper girder 31 and the tension member 40. (Fig. 8)
The restoring force of the elastic member 50 acts on the frame constituted by the column member 20, the upper beam member 31 and the lower beam member 32.
Accordingly, the displacement of the upper beam member 31 is reduced by the restoring force of the elastic member 50, and the force for restoring the column member 20 and the beam member 32 to their normal positions is applied.

＜２−３＞ダンパーの作用
緊張材４０は、柱材２０に設けたダンパー６０によって保持し、ダンパー６０内の粘弾性体６２やプレート６４に接している。（図５、図６）
木造家屋に作用する力が一定値以上に達すると、柱材２０は上下方向及び水平方向に変位する。一方、緊張材４０はコンクリート基礎７０に埋設しているため水平方向にしか変位しない。
そのため、柱材２０に設けたダンパー６０と緊張材４０との間で相対変位が発生する。ダンパー６０と緊張材４０との相対変位によって、ダンパー６０内の粘弾性体６２がせん断変形する。これによって、粘弾性体６２の弾性力と粘性力とにより、柱材２０の変位と、柱材２０に作用する力とを減衰する。
柱材２０と緊張材４０との間の相対変位の量は柱材２０の上部の方が大きくなる。よって、ダンパー６０は緊張材４０の上端付近を保持することが望ましい。 <2-3> Action of Damper The tension member 40 is held by a damper 60 provided on the column member 20 and is in contact with the viscoelastic body 62 and the plate 64 in the damper 60. (FIGS. 5 and 6)
When the force acting on the wooden house reaches a certain value or more, the column member 20 is displaced vertically and horizontally. On the other hand, since the tendon 40 is embedded in the concrete foundation 70, it is displaced only in the horizontal direction.
Therefore, a relative displacement occurs between the damper 60 provided on the column member 20 and the tension member 40. Due to the relative displacement between the damper 60 and the tendon 40, the viscoelastic body 62 in the damper 60 undergoes shear deformation. As a result, the displacement of the column member 20 and the force acting on the column member 20 are attenuated by the elastic force and the viscous force of the viscoelastic body 62.
The amount of relative displacement between the column member 20 and the tension member 40 is larger in the upper part of the column member 20. Therefore, it is desirable that the damper 60 holds the vicinity of the upper end of the tendon 40.

［その他の実施例］
上記実施例では、上桁材３１の上部に弾性材５０を設けたが、屋根９０等の配置により上桁材３１の上部に弾性材５０を設置するスペースがない場合には、隣接する柱材２０間の中央付近に緊張材４０を立設し、上桁材３１の緊張材４０の貫通部にダンパー６０を設けてもよい。（図９）
このように構成することで、弾性材５０を配置するスペースを確保すると共に、一本の緊張材４０と弾性材５０とで柱材２０と、上桁材３１、下桁材３２とからなる枠組を保持することができる。 [Other Examples]
In the above embodiment, the elastic material 50 is provided on the upper part of the upper girder 31. However, when there is no space for installing the elastic material 50 on the upper part of the upper girder 31 due to the arrangement of the roof 90 or the like, the adjacent column material is provided. The tension member 40 may be erected in the vicinity of the center between the 20 and the damper 60 may be provided in the penetrating portion of the tension member 40 of the upper girder 31. (Fig. 9)
With such a configuration, a space for arranging the elastic member 50 is secured, and a framework including the column member 20, the upper girder member 31, and the lower girder member 32 with one tension member 40 and the elastic member 50. Can be held.

また、緊張材４０を取り付けるための中間桁材３３ａを、上桁材３１の下方の所定の位置に架設しても良い。（図１０）
その他に、緊張材４０を１階部分の胴差しとなる中間桁材３３に取り付け、ダンパー６０を柱材２０の一階部分に設けても良い。（図１１）
このように構成することで、弾性材５０を配置するスペースを確保すると共に、緊張材４０を短くすることで、低価格、短工期で構築することができる。 Further, the intermediate beam member 33 a for attaching the tension member 40 may be installed at a predetermined position below the upper beam member 31. (Fig. 10)
In addition, the tension member 40 may be attached to the intermediate girder member 33 serving as the body of the first floor portion, and the damper 60 may be provided on the first floor portion of the column member 20. (Fig. 11)
By comprising in this way, while securing the space which arrange | positions the elastic material 50, by shortening the tension | tensile_strength material 40, it can construct | assemble by a low price and a short construction period.

本発明にかかる木造家屋の構造を示す正面図The front view which shows the structure of the wooden house concerning this invention 弾性部材部分の断面図Cross section of elastic member 弾性部材部分の断面図Cross section of elastic member ダンパーの斜視図Perspective view of damper ダンパーの断面図Cross section of damper ダンパーの斜視図Perspective view of damper 木造家屋の構造に力が作用した状態を示す正面図Front view showing the state of force acting on the structure of a wooden house 力が作用した状態の弾性部材部分の断面図Sectional view of the elastic member in a state where force is applied その他実施例にかかる木造家屋の構造を示す正面図Front view showing the structure of a wooden house according to another embodiment その他実施例にかかる木造家屋の構造を示す正面図Front view showing the structure of a wooden house according to another embodiment その他実施例にかかる木造家屋の構造を示す正面図Front view showing the structure of a wooden house according to another embodiment

符号の説明Explanation of symbols

１０・・・土台桁
１１・・・凹部
２０・・・柱材
２１・・・下柱材
２２・・・上柱材
２３・・・凸部
３１・・・上桁材
３２・・・下桁材
３３・・・中間桁材
４０・・・緊張材
４１・・・ナット
４２・・・ブラケット
５０・・・弾性部材
６０・・・ダンパー
６１・・・筒体
６２・・・粘弾性体
６３・・・取付治具
６３１・・取付板部
６４・・・プレート
７０・・・コンクリート基礎
８０・・・筋違
９０・・・屋根 DESCRIPTION OF SYMBOLS 10 ... Base girder 11 ... Recess 20 ... Column material 21 ... Lower column material 22 ... Upper column material 23 ... Convex part 31 ... Upper girder material 32 ... Lower girder Material 33 ... Intermediate girder material 40 ... Tension material 41 ... Nut 42 ... Bracket 50 ... Elastic member 60 ... Damper 61 ... Cylindrical body 62 ... Viscoelastic body 63・ ・ Mounting jig 631 ・ ・ Mounting plate portion 64... Plate 70... Concrete foundation 80.

Claims (3)

基礎の上面に水平に配置した土台桁と、前記土台桁上に垂直に立設した柱材と、前記柱材の上端間に水平に架設した上桁材と、前記柱材の下端間に水平に架設した下桁材と、により構成した木造家屋の構造であって、
前記柱材と、前記上桁材と、前記下桁材と、によって矩形の枠組を構成し、枠組内には筋違又は合板を配置し、
前記土台桁と前記柱材との結合部を緊結せず、前記柱材の下端が土台桁から浮き上がり可能であり、
前記柱材と平行に立設した緊張材を有し、
前記緊張材の下端は前記基礎に固定し、
前記緊張材の上端は、圧縮した弾性部材を介して、前記上桁材に取り付け、
前記枠組の一方の柱材が浮き上がった際に、前記枠組は矩形の状態を保持し、前記弾性部材によって、前記枠組が浮き上がる前の状態に復元可能に構成したことを特徴とする、
木造家屋の構造。 A horizontal girder arranged horizontally on the upper surface of the foundation, a column material vertically erected on the foundation girder, an upper girder material horizontally installed between the upper ends of the column materials, and a horizontal between the lower ends of the column materials The structure of a wooden house constructed with lower girder erected on
The column material, the upper girder material, and the lower girder material constitute a rectangular frame, and a strut or plywood is arranged in the frame,
Without binding the connecting portion of the base beam and the pillar material, the lower end of the pillar material can be lifted from the base beam,
It has a tension material erected in parallel with the pillar material,
The lower end of the tendon is fixed to the foundation,
The upper end of the tendon is attached to the upper girder via a compressed elastic member,
When one column member of the frame is lifted, the frame is held in a rectangular state, and the elastic member is configured to be able to restore the state before the frame is lifted ,
Wooden house structure. 請求項１に記載の木造家屋の構造であって、
前記柱材又は前記上桁材の一部にダンパーを設け、
前記ダンパーによって前記緊張材を保持したことを特徴とする、
木造家屋の構造。 The structure of the wooden house according to claim 1,
A damper is provided on a part of the column member or the upper beam member,
The tendon is held by the damper,
Wooden house structure. 請求項１又は請求項２に記載の木造家屋の構造であって、The structure of the wooden house according to claim 1 or 2,
前記枠組の柱材間に、中間桁材を水平に架設し、Intermediate girders are installed horizontally between the column members of the frame,
前記緊張材の上端は弾性部材を介して、前記中間桁材に取り付けることを特徴とする、The upper end of the tendon is attached to the intermediate beam member via an elastic member,
木造家屋の構造。Wooden house structure.
JP2007237816A 2007-09-13 2007-09-13 Wooden house structure Expired - Fee Related JP4195493B1 (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104631644A (en) * 2015-01-09 2015-05-20 上海大学 Novel connection node structure

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JP6329580B2 (en) * 2016-03-14 2018-05-23 郁也 石井 Seismic structure
JP6282709B1 (en) * 2016-10-18 2018-02-21 株式会社シェルター Restraint hardware and structural housing restraint method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104631644A (en) * 2015-01-09 2015-05-20 上海大学 Novel connection node structure

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