JP2021147838A - Building body support structure - Google Patents

Building body support structure Download PDF

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JP2021147838A
JP2021147838A JP2020047560A JP2020047560A JP2021147838A JP 2021147838 A JP2021147838 A JP 2021147838A JP 2020047560 A JP2020047560 A JP 2020047560A JP 2020047560 A JP2020047560 A JP 2020047560A JP 2021147838 A JP2021147838 A JP 2021147838A
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column base
building body
diameter portion
foundation beam
support structure
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JP7382867B2 (en
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啓祥 田
qi xiang Tian
啓祥 田
徳民 馮
Demin Feng
徳民 馮
太郎 中川
Taro Nakagawa
太郎 中川
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Fujita Corp
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Fujita Corp
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Abstract

To prevent excessive uplift and damage of columns of a building during earthquake and reduce an impact occurring when the uplifted building body drops.SOLUTION: A building body support structure 10D supports a building body 16 through a column 14 having a column base part 26 that opens downward on a column base 2402. A resistance mechanism 20D to generate resistance to uplift of the building body 16 while allowing the uplift and generate resistance to drop when the building body 16 drops after uplifting while allowing the drop is provided across a footing beam 12 and the column base part 26. The resistance mechanism 20D comprises: a rod 42 that has a lower small diameter part 4204 and a large diameter part 4206 whose cross section is larger than the lower small diameter part 4204 and is inserted in the column base part 26; and an elastic member 44 in which the lower small diameter part 4204 is penetrated and which is located at a position of the column base part 26 under the large diameter part 4206 and whose outer periphery is attached to an inner peripheral surface 2404 of the column base part 26.SELECTED DRAWING: Figure 1

Description

本発明は、建物本体の支持構造に関する。 The present invention relates to a support structure of a building body.

建物は、地盤上に設けられた基礎梁と、基礎梁から立設された柱、梁などを含む建物本体とで構成され、従来、地盤に打設された杭によって建物を支持する構造として、上端に上方に開放された空間部を有する杭と、基礎梁の下面に取着されその下部が空間部にはめ込まれる截頭円錐形の杭頭キャップとを備え、杭頭キャップの下部に抜け止め部材を垂下させたものが提案されている（特許文献１参照）。
上記構造では、地震発生時に建物および杭頭キャップが杭に対して傾動することで杭頭に作用するモーメントが低減される。 A building is composed of a foundation beam provided on the ground and a building body including columns and beams erected from the foundation beam, and conventionally, as a structure in which the building is supported by piles cast on the ground. It is provided with a pile having a space portion open upward at the upper end and a pile head cap having a conical shape that is attached to the lower surface of the foundation beam and the lower part is fitted into the space portion. A hanging member has been proposed (see Patent Document 1).
In the above structure, the moment acting on the pile head is reduced by tilting the building and the pile head cap with respect to the pile when an earthquake occurs.

特許第４８６３９８２号公報Japanese Patent No. 48632982

しかしながら、上記従来技術では、地震により水平方向の力が建物本体に作用して建物本体が浮き上がるロッキングと呼ばれる現象が生じた場合、建物本体の浮き上がり量が過大となり建物本体が損傷することが懸念され、また、建物本体の浮き上がり後の降下により、杭頭キャップが杭の上部に勢いよくぶつかることで発生した衝撃力が建物本体に加わり建物本体が損傷することが懸念される。
本発明は、このような事情に鑑みてなされたものであり、地震時の建物の柱の過大な浮き上がりや損傷を抑制し、かつ、浮き上がった建物本体が降下する際の衝撃を緩和する上で有利な建物本体の支持構造を提供することを目的とする。 However, in the above-mentioned conventional technique, when a horizontal force acts on the building body due to an earthquake and a phenomenon called locking in which the building body is lifted occurs, there is a concern that the amount of lifting of the building body becomes excessive and the building body is damaged. In addition, there is a concern that the impact force generated by the pile head cap hitting the upper part of the pile vigorously due to the descent after the building body is lifted will be applied to the building body and the building body will be damaged.
The present invention has been made in view of such circumstances, and in order to suppress excessive lifting and damage of pillars of a building at the time of an earthquake and to alleviate the impact when the raised building body descends. The purpose is to provide an advantageous support structure for the building body.

上述した目的を達成するため本発明は、基礎梁から立設された柱を含む建物本体の前記基礎梁上での支持構造であって、前記柱の柱脚に下方に開放された柱脚部が形成され、前記基礎梁と前記柱脚部とにわたり、前記建物本体の浮き上がりに対して浮き上がりを許容しつつ抵抗を生じ、かつ、前記建物本体の浮き上がり後の降下時に降下に対して降下を許容しつつ抵抗を生じる抵抗機構が設けられ、前記抵抗機構は、前記基礎梁の上面から上方に突設される下部小径部と、前記下部小径部の上部に設けられ前記下部小径部よりも断面積の大きい大径部とを有し前記柱脚部に挿入されるロッドと、前記下部小径部が貫通されて前記大径部よりも下方の前記柱脚部の箇所に位置し前記柱脚部の内周面にその外周部が取着された弾性部材とを含んで構成されていることを特徴とする。
また、本発明は、前記大径部は前記ロッドの長さ方向に沿った長さを有し、前記大径部の断面積は、前記大径部の前記長さ方向の中央が最も大きく形成されると共に前記長さ方向の中央から離れるにつれて次第に小さくなるように形成されていることを特徴とする。
また、本発明は、前記大径部の上端に、前記大径部よりも外径の小さい上部小径部が設けられていることを特徴とする。
また、本発明は、前記弾性部材は、その下部がその上部よりも弾性係数の大きな部材で形成されていることを特徴とする。
また、本発明は、前記基礎梁と前記柱脚との間に、前記基礎梁に対して前記柱脚の上方への変位を許容しつつ前記柱脚の水平方向の位置決めを行なう位置決め部が設けられ、前記抵抗機構は、前記位置決め部の内側に設けられていることを特徴とする。
また、本発明は、前記位置決め部は、前記基礎梁の上面に取着され、その上部が前記柱脚部にはめ込まれ前記基礎梁の上面から上方に離れるにつれて断面積が次第に小さくなる中空状の柱脚キャップを含んで構成され、前記抵抗機構は、前記柱脚キャップの内側を通って設けられていることを特徴とする。
また、本発明は、前記基礎梁と前記柱脚との間に、前記基礎梁に対して前記柱脚の上方への変位を許容しつつ前記柱脚の水平方向の位置決めを行なう位置決め部が設けられ、前記抵抗機構は、前記位置決め部と前記柱脚部とにわたって設けられていることを特徴とする。
また、本発明は、前記位置決め部は、前記基礎梁の上面に取着され、その上部が前記柱脚部にはめ込まれ前記基礎梁の上面から上方に離れるにつれて断面積が次第に小さくなる中実状の柱脚キャップを含んで構成され、前記抵抗機構は、前記柱脚キャップの上面と前記柱脚部とにわたって設けられていることを特徴とする。 In order to achieve the above-mentioned object, the present invention is a support structure on the foundation beam of a building body including a column erected from the foundation beam, and a column base portion opened downward to the column base of the column. Is formed, and resistance is generated while allowing the building body to rise over the foundation beam and the column base, and the building body is allowed to descend when descending after the building body is lifted. A resistance mechanism that generates resistance while being provided is provided, and the resistance mechanism is provided on a lower small-diameter portion that protrudes upward from the upper surface of the foundation beam and is provided on the upper portion of the lower small-diameter portion and has a cross-sectional area larger than that of the lower small-diameter portion. The rod having a large diameter portion and being inserted into the column base portion, and the lower small diameter portion being penetrated and located at the position of the column base portion below the large diameter portion of the column base portion. It is characterized in that it is configured to include an elastic member to which an outer peripheral portion thereof is attached to an inner peripheral surface.
Further, in the present invention, the large diameter portion has a length along the length direction of the rod, and the cross-sectional area of the large diameter portion is formed to be the largest at the center of the large diameter portion in the length direction. It is characterized in that it is formed so as to be gradually reduced as the distance from the center in the length direction increases.
Further, the present invention is characterized in that an upper small diameter portion having an outer diameter smaller than that of the large diameter portion is provided at the upper end of the large diameter portion.
Further, the present invention is characterized in that the lower portion of the elastic member is formed of a member having a larger elastic modulus than the upper portion thereof.
Further, in the present invention, a positioning portion is provided between the foundation beam and the column base for horizontally positioning the column base while allowing the foundation beam to be displaced upward. The resistance mechanism is provided inside the positioning portion.
Further, in the present invention, the positioning portion is attached to the upper surface of the foundation beam, the upper portion thereof is fitted into the column base portion, and the cross-sectional area gradually decreases as the distance from the upper surface of the foundation beam increases. It is configured to include a column base cap, and the resistance mechanism is provided through the inside of the column base cap.
Further, in the present invention, a positioning portion is provided between the foundation beam and the column base for horizontally positioning the column base while allowing the foundation beam to be displaced upward. The resistance mechanism is provided over the positioning portion and the column base portion.
Further, in the present invention, the positioning portion is attached to the upper surface of the foundation beam, the upper portion thereof is fitted into the column base portion, and the cross-sectional area gradually decreases as the distance from the upper surface of the foundation beam increases. It is configured to include a column base cap, and the resistance mechanism is provided over the upper surface of the column base cap and the column base portion.

本発明によれば、基礎梁と柱脚部とにわたり、建物本体の浮き上がりに対して浮き上がりを許容しつつ抵抗を生じ、かつ、建物本体の浮き上がり後の降下時に降下に対して降下を許容しつつ抵抗を生じる抵抗機構が設けられているため、例えば地震などが発生し建物に水平方向の力が作用した場合、建物本体の過大な浮き上がりを抑制し、かつ、浮き上がった建物本体が降下する際の衝撃を緩和する上で有利となる。このため、建物本体の損傷を抑制し、建物本体に所在する人の不快感を軽減させる上で有利となる。
また、本発明によれば、抵抗機構は、基礎梁の上面から上方に突設される下部小径部と、下部小径部の上部に設けられ下部小径部よりも断面積の大きい大径部とを有するロッドと、下部小径部が貫通されて大径部よりも下方の柱脚部の箇所に位置し柱脚部の内周面にその外周部が取着された弾性部材とを含んで構成されている。
このため、建物本体の一側が大きく浮き上がる方向に変位しようとする場合、また、建物本体の浮き上がり後に降下する場合、ロッドの外周面と弾性部材の内周面との摩擦抵抗と、大径部が弾性部材を押圧する際の抵抗とにより、建物本体の上方への変位、または下方への変位に対しての抵抗を生じる。
したがって、建物本体の浮き上がりを許容しつつ抵抗を生じ、建物本体の過大な浮き上がりを抑制する上で有利となるとともに、建物本体の浮き上がり後の降下時に降下に対して降下を許容しつつ抵抗を生じ、建物本体の衝撃を緩和する上で有利となる。そのため、建物本体の損傷を抑制する上で有利となり、建物本体に所在する人の不快感を軽減させる上で有利となる。
また、本発明によれば、大径部はロッドの長さ方向に沿った長さを有し、大径部の断面積は、大径部の長さ方向の中央が最も大きく形成されると共に長さ方向の中央から離れるにつれて次第に小さくなるように形成されているので、簡単な構造により上部構造物の浮き上がり時および浮き上がり後の降下時の双方に確実に抵抗を生じさせる上で有利となる。
また、本発明によれば、大径部の上端に、大径部よりも外径の小さい上部小径部が設けられているので、大径部が弾性部材の下面の下方に変位した後、上部構造体が降下する際に大径部を弾性部材の内部に円滑に戻す上で有利となる。
また、本発明によれば、弾性部材はその下部がその上部よりも弾性係数の大きな部材で形成されているため、建物本体の上方への僅かな変位に対しては、ロッドの外周部と摩擦部材の内周面との摩擦抵抗と、大径部が弾性部材を押圧する際の抵抗とにより、建物本体の浮き上がりを許容しつつ第１の抵抗を生じ、建物本体の上方への大きな変位に対しては、ロッドの外周部と摩擦部材の内周面との摩擦抵抗と、大径部が弾性部材を押圧して侵入する際の抵抗とにより、建物本体の浮き上がりを許容しつつ第１の抵抗よりも大きな第２の抵抗を生じ、建物本体の過大な浮き上がりを抑制する。そのため、建物本体の損傷を抑制する上で有利となり、建物本体に所在する人の不快感を軽減させる上で有利となり、また、摩擦部材の柱脚からの抜落を阻止する上で有利となる。
また、本発明によれば、基礎梁と柱脚との間に、基礎梁に対して柱脚の上方への変位を許容しつつ柱脚の水平方向の位置決めを行なう位置決め部を設け、抵抗機構を位置決め部の内側に設けると、地震時、建物本体に過大な水平力が加わることで一時的に建物本体の浮き上がりや水平方向へのずれが生じても、位置決め部により建物本体の水平方向の位置が元の位置に戻るため、地震の収束後に建物本体を水平に支持する上で有利となる。
また、位置決め部を、基礎梁の上面に取着され、その上部が柱脚部にはめ込まれ基礎梁の上面から上方に離れるにつれて断面積が次第に小さくなる中空状の柱脚キャップを含んで構成し、抵抗機構を、柱脚キャップの内側を通って設けると、柱脚が柱脚キャップに対してあらゆる方向に傾動可能となるため、仮に基礎梁が傾斜していても建物本体を水平に支持する上で有利となる。
また、本発明によれば、基礎梁と柱脚との間に、基礎梁に対して柱脚の上方への変位を許容しつつ柱脚の水平方向の位置決めを行なう位置決め部を設け、抵抗機構を位置決め部と柱脚部とにわたって設けると、地震時、建物本体に過大な水平力が加わることで一時的に建物本体の浮き上がりや水平方向へのずれが生じても、位置決め部により建物本体の水平方向の位置が元の位置に戻るため、地震の収束後に建物本体を水平に支持する上で有利となる。
また、位置決め部を、基礎梁の上面に取着され、その上部が柱脚部にはめ込まれ基礎梁の上面から上方に離れるにつれて断面積が次第に小さくなる中実状の柱脚キャップを含んで構成し、抵抗機構を、柱脚キャップの上面と柱脚部とにわたって設けると、柱脚が柱脚キャップに対してあらゆる方向に傾動可能となるため、仮に基礎梁が傾斜していても建物本体を水平に支持する上で有利となる。 According to the present invention, the foundation beam and the column base portion generate resistance while allowing the building body to rise, and allow the building body to descend when descending after the building body has lifted. Since a resistance mechanism that generates resistance is provided, for example, when a horizontal force acts on the building due to an earthquake, etc., the excessive lifting of the building body is suppressed and the lifted building body descends. It is advantageous in cushioning the impact. Therefore, it is advantageous in suppressing damage to the building body and reducing discomfort of people located in the building body.
Further, according to the present invention, the resistance mechanism includes a lower small diameter portion projecting upward from the upper surface of the foundation beam and a large diameter portion provided above the lower small diameter portion and having a larger cross-sectional area than the lower small diameter portion. It is composed of a rod having a rod and an elastic member which is located at a position of a column base below the large diameter portion through which a lower small diameter portion is penetrated and whose outer peripheral portion is attached to an inner peripheral surface of the column base portion. ing.
For this reason, when one side of the building body is to be displaced in a direction in which it is greatly lifted, or when the building body is lowered after being lifted, the frictional resistance between the outer peripheral surface of the rod and the inner peripheral surface of the elastic member and the large diameter portion are increased. The resistance to pressing the elastic member causes resistance to upward or downward displacement of the building body.
Therefore, resistance is generated while allowing the building body to rise, which is advantageous in suppressing excessive lifting of the building body, and resistance is generated while allowing the descent when the building body is descended after the building body is lifted. , It is advantageous in alleviating the impact of the building body. Therefore, it is advantageous in suppressing damage to the building body, and is advantageous in reducing the discomfort of the person located in the building body.
Further, according to the present invention, the large-diameter portion has a length along the length direction of the rod, and the cross-sectional area of the large-diameter portion is formed to be the largest at the center of the large-diameter portion in the length direction. Since it is formed so as to gradually become smaller as the distance from the center in the length direction increases, the simple structure is advantageous in ensuring that resistance is generated both when the superstructure is lifted and when the superstructure is lowered after the lift.
Further, according to the present invention, since the upper small diameter portion having an outer diameter smaller than that of the large diameter portion is provided at the upper end of the large diameter portion, the large diameter portion is displaced below the lower surface of the elastic member and then the upper portion. This is advantageous in smoothly returning the large diameter portion to the inside of the elastic member when the structure descends.
Further, according to the present invention, since the lower portion of the elastic member is formed of a member having a larger elastic coefficient than the upper portion thereof, friction with the outer peripheral portion of the rod is applied to a slight upward displacement of the building body. Due to the frictional resistance with the inner peripheral surface of the member and the resistance when the large diameter part presses the elastic member, the first resistance is generated while allowing the building body to rise, resulting in a large upward displacement of the building body. On the other hand, due to the frictional resistance between the outer peripheral portion of the rod and the inner peripheral surface of the friction member and the resistance when the large-diameter portion presses the elastic member to invade, the first is allowed to lift the building body. A second resistance larger than the resistance is generated, and the excessive lifting of the building body is suppressed. Therefore, it is advantageous in suppressing damage to the building body, advantageous in reducing discomfort of people located in the building body, and advantageous in preventing the friction member from falling out from the column base. ..
Further, according to the present invention, a positioning portion for horizontally positioning the column base while allowing the foundation beam to be displaced upward with respect to the foundation beam is provided between the foundation beam and the column base, and a resistance mechanism is provided. If is provided inside the positioning part, even if an excessive horizontal force is applied to the building body in the event of an earthquake and the building body is temporarily lifted or displaced in the horizontal direction, the positioning part will make the building body horizontal. Since the position returns to the original position, it is advantageous for supporting the building body horizontally after the earthquake has converged.
Further, the positioning portion is configured to include a hollow column base cap which is attached to the upper surface of the foundation beam, the upper portion of which is fitted into the column base portion, and the cross-sectional area gradually decreases as the distance from the upper surface of the foundation beam increases. If the resistance mechanism is provided through the inside of the column base cap, the column base can be tilted in all directions with respect to the column base cap, so even if the foundation beam is tilted, the building body is supported horizontally. It will be advantageous on.
Further, according to the present invention, a positioning portion for horizontally positioning the column base while allowing the foundation beam to be displaced upward with respect to the foundation beam is provided between the foundation beam and the column base, and a resistance mechanism is provided. If is provided over the positioning part and the column base part, even if an excessive horizontal force is applied to the building body during an earthquake and the building body is temporarily lifted or displaced in the horizontal direction, the positioning part will be used to move the building body. Since the horizontal position returns to the original position, it is advantageous for horizontally supporting the building body after the earthquake has converged.
Further, the positioning portion is configured to include a solid column base cap which is attached to the upper surface of the foundation beam, the upper portion of which is fitted into the column base portion, and the cross-sectional area gradually decreases as the distance from the upper surface of the foundation beam increases. If the resistance mechanism is provided over the upper surface of the column base cap and the column base, the column base can be tilted in all directions with respect to the column base cap, so even if the foundation beam is tilted, the building body is horizontal. It will be advantageous to support.

第１の実施の形態の建物本体の支持構造の構成を示す説明図である。It is explanatory drawing which shows the structure of the support structure of the building body of 1st Embodiment. 第１の実施の形態の建物本体の支持構造において建物本体の浮き上がりが発生した場合を示す説明図である。It is explanatory drawing which shows the case where the building body is lifted in the support structure of the building body of 1st Embodiment. 第２の実施の形態の建物本体の支持構造の構成を示す説明図である。It is explanatory drawing which shows the structure of the support structure of the building body of the 2nd Embodiment. 第２の実施の形態の建物本体の支持構造において建物本体の浮き上がりが発生した場合を示す説明図である。It is explanatory drawing which shows the case where the building body is lifted in the support structure of the building body of the 2nd Embodiment.

（第１の実施の形態）
以下、本発明の実施の形態を図面に基づいて詳細に説明する。
図１に示すように、本実施の形態の建物本体の支持構造１０Ｄは、水平方向に延在する基礎梁１２から立設された複数の柱１４を含む建物本体１６を基礎梁１２上で支持するものであり、抵抗機構２０Ｄを含んでいる。
すなわち、建物１８は、建物本体１６と基礎梁１２とを含んで構成され、建物１８は、体育館、倉庫、鉄塔などの構造物であり、建物本体１６は、基礎梁１２から立設された複数の柱１４、それら柱１４間に架け渡された複数の梁などを含んで構成されている。
基礎梁１２として、鉄筋コンクリート造（ＲＣ造）、鉄骨造（Ｓ造）のもの、あるいは、木製の基礎梁など従来公知の様々なものが使用可能である。
なお、図中符号２２は基礎梁１２上に設けられた床スラブを示し、符号２２０２は、後述する柱脚キャップ３０を基礎梁１２の上面１２０２に取着するための開口を示す。 (First Embodiment)
Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
As shown in FIG. 1, the support structure 10D of the building body of the present embodiment supports the building body 16 including a plurality of columns 14 erected from the foundation beam 12 extending in the horizontal direction on the foundation beam 12. It includes a resistance mechanism 20D.
That is, the building 18 is composed of the building body 16 and the foundation beam 12, the building 18 is a structure such as a gymnasium, a warehouse, and a steel tower, and the building body 16 is a plurality of structures erected from the foundation beam 12. The pillar 14 and a plurality of beams bridged between the pillars 14 are included.
As the foundation beam 12, various conventionally known ones such as a reinforced concrete structure (RC structure), a steel frame structure (S structure), and a wooden foundation beam can be used.
Reference numeral 22 in the drawing indicates a floor slab provided on the foundation beam 12, and reference numeral 2202 indicates an opening for attaching the column base cap 30 described later to the upper surface 1202 of the foundation beam 12.

柱１４は、柱本体２４と、柱本体２４の下部を構成する柱脚２４０２と、柱脚部２６とを含んで構成されている。
なお、柱１４として、鋼管柱、ＲＣ柱（鉄筋コンクリート柱）、ＳＲＣ柱（鉄骨鉄筋コンクリート柱）、ＳＣ柱（鉄骨コンクリート柱）、あるいは木造柱など従来公知の様々なものが使用可能であり、本実施の形態では、鋼管柱である。
柱本体２４は、基礎梁１２の上面１２０２から立設され、柱脚２４０２の下面は基礎梁１２の上面１２０２に対向している。
柱脚部２６は、柱脚２４０２に下方に開放状に形成されている。
本実施の形態では、柱本体２４は鋼管柱であるため、円柱状の空間部が柱本体２４の内部で柱本体２４の全長にわたって形成されている。
なお、柱本体２４がＲＣ柱などの鋼管柱以外の柱を用いた場合には、柱脚部２６を柱脚２４０２に予め形成しておく。
また、図中符号２５は、柱脚部２６の下部の外周面の全周に沿って設けられた補強用のリングであり、リング２５は溶接によって柱脚部２６に接合されている。 The column 14 includes a column body 24, a column base 2402 forming a lower portion of the column body 24, and a column base portion 26.
As the columns 14, various conventionally known columns such as steel tube columns, RC columns (reinforced concrete columns), SRC columns (steel-framed reinforced concrete columns), SC columns (steel-framed concrete columns), and wooden columns can be used. In the form of, it is a steel pipe column.
The column body 24 is erected from the upper surface 1202 of the foundation beam 12, and the lower surface of the column base 2402 faces the upper surface 1202 of the foundation beam 12.
The column base portion 26 is formed on the column base 2402 in an open shape downward.
In the present embodiment, since the column body 24 is a steel pipe column, a columnar space is formed inside the column body 24 over the entire length of the column body 24.
When the column body 24 uses columns other than steel pipe columns such as RC columns, the column base 26 is formed in advance on the column base 2402.
Further, reference numeral 25 in the drawing is a reinforcing ring provided along the entire circumference of the outer peripheral surface of the lower portion of the column base portion 26, and the ring 25 is joined to the column base portion 26 by welding.

更に本実施の形態では、位置決め部２８が設けられている。
位置決め部２８は、基礎梁１２と柱脚２４０２との間に設けられ、基礎梁１２に対して柱脚２４０２の上方への変位を許容しつつ柱脚２４０２の水平方向の位置決めを行なうものである。
本実施の形態では、位置決め部２８は柱脚キャップ３０と柱脚２４０２を含んで構成されている。
柱脚キャップ３０は、鋼製であり、キャップ本体３００２と、蓋板部３００４とを備えている。
キャップ本体３００２は、基礎梁１２の上面１２０２から上方に離れるにつれて断面積が次第に小さくなる中空状を呈し、本実施の形態では、截頭円錐形の中空の枠状を呈し、キャップ本体３００２の上部は柱脚部２６にはめ込まれ、言い換えると柱脚２４０２の下端にはめ込まれている。
蓋板部３００４は、キャップ本体３００２の下縁よりも大きな輪郭を有する正方形の鋼板で構成され、蓋板部３００４の中心には、後述するロッド３２のフランジ３２０２を収容する孔部３００５が形成されている。
蓋板部３００４は、キャップ本体３００２の軸心と蓋板部３００４の中心とを合致させた状態でキャップ本体３００２の下縁と蓋板部３００４の上面とが溶接で接合されている。
蓋板部３００４は、基礎梁１２の上面１２０２にボルトＢ１とナットＮ１を介して締結されている。
キャップ本体３００２の上部が柱脚部２６にはめ込まれた状態でキャップ本体３００２の上部は柱脚２４０２（柱脚部２６）の内周面２４０４の下縁２４０６に摩擦接触している。
なお、本明細書において、截頭円錐形は部分球形状、球面形状などの形状を広く含む。
本発明において柱脚キャップ３０は省略可能であるが、柱脚キャップ３０を用いることにより以下の効果が奏される。
１）柱脚２４０２の柱脚部２６にキャップ本体３００２をはめ込むことで、柱脚２４０２がキャップ本体３００２に対してあらゆる方向に傾動可能となるため、柱脚部２６の損傷が避けられる。
２）地震時、建物本体１６に過大な水平力が加わることで一時的に建物本体１６の浮き上がりや水平方向へのずれが生じても、キャップ本体３００２が柱脚２４０２の柱脚部２６にはめ込まれることで建物本体１６の水平方向の位置が元の位置に戻るため、地震の収束後に建物本体１６を水平に支持する上で有利となる。
なお、基礎梁１２に対して柱脚２４０２の上方への変位を許容しつつ柱脚２４０２の水平方向の位置決めを行う位置決め部２８は柱脚キャップ３０に限定されず、従来公知の様々な構造が適用可能であるが、柱脚キャップ３０を用いると上述の効果を奏する点で有利となる。
また、本実施の形態では、柱２４が断面形状が円形の鋼管柱で構成されている場合について説明したが、柱は角柱であってもよく、その場合、柱脚キャップは、基礎梁１２の上面１２０２から上方に離れるにつれて断面積が次第に小さくなる中空状、あるいは、中実状を呈していればよく、具体的には截頭角錐形となる。 Further, in the present embodiment, the positioning unit 28 is provided.
The positioning portion 28 is provided between the foundation beam 12 and the column base 2402, and positions the column base 2402 in the horizontal direction while allowing the column base 2402 to be displaced upward with respect to the foundation beam 12. ..
In the present embodiment, the positioning portion 28 includes a column base cap 30 and a column base 2402.
The column base cap 30 is made of steel and includes a cap main body 3002 and a lid plate portion 3004.
The cap body 3002 has a hollow shape in which the cross-sectional area gradually decreases as the distance from the upper surface 1202 of the foundation beam 12 increases. Is fitted into the column base 26, in other words, is fitted into the lower end of the column base 2402.
The lid plate portion 3004 is made of a square steel plate having a contour larger than that of the lower edge of the cap body 3002, and a hole portion 3005 for accommodating the flange 3202 of the rod 32 described later is formed in the center of the lid plate portion 3004. ing.
In the lid plate portion 3004, the lower edge of the cap main body 3002 and the upper surface of the lid plate portion 3004 are joined by welding in a state where the axial center of the cap main body 3002 and the center of the lid plate portion 3004 are aligned.
The lid plate portion 3004 is fastened to the upper surface 1202 of the foundation beam 12 via bolts B1 and nuts N1.
With the upper part of the cap body 3002 fitted in the column base 26, the upper part of the cap body 3002 is in frictional contact with the lower edge 2406 of the inner peripheral surface 2404 of the column base 2402 (column base 26).
In the present specification, the head cone shape broadly includes shapes such as a partial spherical shape and a spherical shape.
Although the column base cap 30 can be omitted in the present invention, the following effects can be obtained by using the column base cap 30.
1) By fitting the cap body 3002 into the column base 26 of the column base 2402, the column base 2402 can be tilted in all directions with respect to the cap body 3002, so that damage to the column base 26 can be avoided.
2) In the event of an earthquake, even if an excessive horizontal force is applied to the building body 16 and the building body 16 is temporarily lifted or displaced in the horizontal direction, the cap body 3002 is fitted into the column base 26 of the column base 2402. As a result, the horizontal position of the building body 16 returns to the original position, which is advantageous in supporting the building body 16 horizontally after the earthquake has converged.
The positioning portion 28 that positions the column base 2402 in the horizontal direction while allowing the column base 2402 to be displaced upward with respect to the foundation beam 12 is not limited to the column base cap 30, and various conventionally known structures can be used. Although it is applicable, the use of the column base cap 30 is advantageous in that the above-mentioned effects are obtained.
Further, in the present embodiment, the case where the column 24 is composed of a steel pipe column having a circular cross-sectional shape has been described, but the column may be a prism, and in that case, the column base cap is the foundation beam 12. It suffices to have a hollow shape or a solid shape in which the cross-sectional area gradually decreases as the distance from the upper surface 1202 increases, and more specifically, the cross-sectional area becomes a prismatic shape.

抵抗機構２０Ｄは、基礎梁１２と柱脚２４０２の柱脚部２６とにわたって設けられている。
抵抗機構２０Ｄは、建物本体１６の浮き上がりに対して浮き上がりを許容しつつ抵抗を生じ、かつ、建物本体１６の浮き上がり後の降下時に降下に対して降下を許容しつつ抵抗を生じるものである。
本実施の形態の抵抗機構２０Ｄは、ロッド４２と、弾性部材４４とを含んで構成されている。 The resistance mechanism 20D is provided over the foundation beam 12 and the column base portion 26 of the column base 2402.
The resistance mechanism 20D generates resistance while allowing the building body 16 to rise, and also causes resistance to the descent when the building body 16 descends after the building body 16 is lifted.
The resistance mechanism 20D of the present embodiment includes a rod 42 and an elastic member 44.

ロッド４２は、建物本体１６の基礎梁１２の上面１２０２から柱脚キャップ３０の内側を通り柱脚キャップ３０の上方に突設され、柱脚部２６に挿入されている。
したがって、抵抗機構２０Ｄは、柱脚キャップ３０の内側を通って設けられ、言い換えると、抵抗機構２０Ｄは、位置決め部２８の内側に設けられている。
なお、柱脚キャップ３０が中実の截頭円錐形を呈している場合には、柱脚キャップ３０の上面は、基礎梁１２の上面１２０２を構成するため、ロッド３２は柱脚キャップ３８の上面から突設されることになる。
その場合、抵抗機構２０Ｄは、柱脚キャップ３０の上面と柱脚部２６とにわたって設けられ、言い換えると、抵抗機構２０Ｄは、位置決め部２８と柱脚部２６とにわたって設けられることになる。
ロッド４２は、その下端フランジ３２０２が基礎梁１２の上面１２０２にボルトＢ２、ナットＮ２を介して締結されることで配設されている。
なお、柱脚キャップ３０が中実状の截頭円錐形を呈している場合には、第１の実施の形態と同様に、ロッド４２は柱脚キャップ３０の上面から突設され柱脚キャップ３０の上面と柱脚部２６とにわたって設けられることになる。
ロッド４２は、下部小径部４２０４と、大径部４２０６と、上部小径部４２０８とを含んで構成されている。 The rod 42 is projected from the upper surface 1202 of the foundation beam 12 of the building body 16 through the inside of the column base cap 30 and above the column base cap 30, and is inserted into the column base portion 26.
Therefore, the resistance mechanism 20D is provided through the inside of the column base cap 30, in other words, the resistance mechanism 20D is provided inside the positioning portion 28.
When the column base cap 30 has a solid head cone shape, the upper surface of the column base cap 30 constitutes the upper surface 1202 of the foundation beam 12, so that the rod 32 is the upper surface of the column base cap 38. It will be thrust from.
In that case, the resistance mechanism 20D is provided over the upper surface of the column base cap 30 and the column base portion 26, in other words, the resistance mechanism 20D is provided over the positioning portion 28 and the column base portion 26.
The rod 42 is arranged by fastening the lower end flange 3202 to the upper surface 1202 of the foundation beam 12 via bolts B2 and nuts N2.
When the column base cap 30 has a solid conical shape, the rod 42 is projected from the upper surface of the column base cap 30 and is projected from the upper surface of the column base cap 30, as in the first embodiment. It will be provided over the upper surface and the column base 26.
The rod 42 includes a lower small diameter portion 4204, a large diameter portion 4206, and an upper small diameter portion 4208.

下部小径部４２０４は、建物本体１６の基礎梁１２の上面１２０２から上方に突設され、下部に下端フランジ３２０２が接続された棒状の部材である。
大径部４２０６は、下部小径部４２０４の上部に設けられ下部小径部４２０４よりも断面積が大きく、ロッド４２の下部小径部４２０４の長さ方向に沿った長さを有している。
大径部４２０６の長さ方向に直交する断面積は、大径部４２０４の長さ方向の中央４２０６Ａが最も大きく形成され、長さ方向の中央４２０６Ａから離れるにつれて次第に小さくなるように形成されている。
なお、本実施の形態の大径部４２０６は、断面が円形となる球体に形成されているが、断面が楕円形となる長球や扁球などの楕円体でもよい。
上部小径部４２０８は、大径部４２０６の上端から上方に突設され、大径部４２０６よりも外径が小さく形成されている。
本実施の形態では、上部小径部４２０８は、下部小径部４２０４と同じ外径を有する棒状の部材である。
上部小径部４２０８の上端は、上方に向かって次第に半径が小さくなる円錐面４２０８Ａで形成されている。これにより、弾性部材４４の貫通孔４４０８にロッド４２が円滑に貫通されるように図られている。 The lower small diameter portion 4204 is a rod-shaped member that protrudes upward from the upper surface 1202 of the foundation beam 12 of the building body 16 and has a lower end flange 3202 connected to the lower portion.
The large diameter portion 4206 is provided above the lower small diameter portion 4204, has a larger cross-sectional area than the lower small diameter portion 4204, and has a length along the length direction of the lower small diameter portion 4204 of the rod 42.
The cross-sectional area of the large diameter portion 4206 orthogonal to the length direction is formed so that the center 4206A in the length direction of the large diameter portion 4204 is formed to be the largest and gradually becomes smaller as the distance from the center 4206A in the length direction increases. ..
The large diameter portion 4206 of the present embodiment is formed in a sphere having a circular cross section, but may be an ellipsoid such as a prolate spheroid or an oblate spheroid having an elliptical cross section.
The upper small diameter portion 4208 projects upward from the upper end of the large diameter portion 4206, and is formed to have a smaller outer diameter than the large diameter portion 4206.
In the present embodiment, the upper small diameter portion 4208 is a rod-shaped member having the same outer diameter as the lower small diameter portion 4204.
The upper end of the upper small diameter portion 4208 is formed by a conical surface 4208A whose radius gradually decreases upward. As a result, the rod 42 is smoothly penetrated through the through hole 4408 of the elastic member 44.

弾性部材４４は、下部小径部４２０４が貫通されて大径部４２０６よりも下方の柱脚部２６の箇所に位置し、柱脚２４０２（柱脚部２６）の内周面２４０４にその外周部が取着されている。
本実施の形態では、弾性部材４４は、弾性変形可能なゴム材料で円板状に形成され、円形の上面４４０２と下面４４０４と、それら上面４４０２と下面４４０４を接続する外周面４４０６とを備えている。 The elastic member 44 is located at a position of the column base 26 below the large diameter 4206 through which the lower small diameter portion 4204 is penetrated, and the outer peripheral portion thereof is on the inner peripheral surface 2404 of the column base 2402 (column base 26). It is attached.
In the present embodiment, the elastic member 44 is formed of an elastically deformable rubber material in a disk shape, and includes a circular upper surface 4402 and a lower surface 4404, and an outer peripheral surface 4406 connecting the upper surface 4402 and the lower surface 4404. There is.

弾性部材４４を柱脚２４０２（柱脚部２６）の内周面２４０４に取着する方法としては、例えば、弾性部材４４の外周面４４０６と柱脚２４０２（柱脚部２６）の内周面２４０４の全周にわたって接着剤により固定させたり、弾性部材４４を配置した箇所の柱脚２４０２の外周面からボルトを挿入して固定させたり、またその両方を用いて固定させてもよい。さらに、柱脚２４０２の内部において、直角に屈曲したブラケットを、弾性部材４４の上面４４０２と柱脚２４０２（柱脚部２６）の内周面２４０４、弾性部材４４の下面４４０４と柱脚２４０２（柱脚部２６）の内周面２４０４にそれぞれボルトで固定し、弾性部材４４を固定させてもよく、従来公知の様々の取り付け構造が採用可能である。これにより、弾性部材４４は、柱脚２４０２の長手方向に移動不能となっている。
また、ロッド４２は弾性部材４４の中心部の貫通孔４４０８に貫通されている。貫通孔４４０８の内径は下部小径部４２０４の外径より僅かに小さく形成されているため、下部小径部４２０４の外周面４２１０と貫通孔４４０８の内周面４４１０とは弾接している。 As a method of attaching the elastic member 44 to the inner peripheral surface 2404 of the column base 2402 (column base 26), for example, the outer peripheral surface 4406 of the elastic member 44 and the inner peripheral surface 2404 of the column base 2402 (column base 26) It may be fixed by an adhesive over the entire circumference of the above, a bolt may be inserted and fixed from the outer peripheral surface of the column base 2402 at the place where the elastic member 44 is arranged, or both may be used for fixing. Further, inside the column base 2402, the bracket bent at a right angle is attached to the upper surface 4402 of the elastic member 44 and the inner peripheral surface 2404 of the column base 2402 (column base 26), and the lower surface 4404 and the column base 2402 (column) of the elastic member 44. The elastic member 44 may be fixed to the inner peripheral surface 2404 of the leg 26) with bolts, and various conventionally known mounting structures can be adopted. As a result, the elastic member 44 cannot move in the longitudinal direction of the column base 2402.
Further, the rod 42 is penetrated through the through hole 4408 at the center of the elastic member 44. Since the inner diameter of the through hole 4408 is formed to be slightly smaller than the outer diameter of the lower small diameter portion 4204, the outer peripheral surface 4210 of the lower small diameter portion 4204 and the inner peripheral surface 4410 of the through hole 4408 are in bullet contact.

ロッド４２は、建物本体１６が基礎梁１２に対して浮き上がっていない建物本体１６の静止状態で、下部小径部４２０４が貫通され大径部４２０６の下方の柱脚部２６に弾性部材４４がある初期位置に位置している（図１参照）。そして、建物本体１６に水平力が作用して建物本体１６の浮き上がると弾性部材４４が取着された柱１４も浮き上がり、その結果、ロッド４２の大径部４２０６が弾性部材４４の貫通孔４４０８を押し広げ弾性部材４４を圧縮変形させながら内部に侵入していく（図２参照）。
このように大径部４２０６が弾性部材４４の貫通孔４４０８を押し広げ弾性部材４４を圧縮変形させながら侵入していくと、弾性部材４４から大径部４２０６に作用する反力により大径部４２０６に抵抗が生じる。 In the rod 42, when the building body 16 is stationary with respect to the foundation beam 12, the lower small diameter portion 4204 is penetrated and the elastic member 44 is provided in the lower column base 26 of the large diameter portion 4206. It is located in position (see FIG. 1). Then, when a horizontal force acts on the building body 16 and the building body 16 rises, the pillar 14 to which the elastic member 44 is attached also rises, and as a result, the large diameter portion 4206 of the rod 42 fills the through hole 4408 of the elastic member 44. The elastic member 44 is expanded and deformed while being compressed and deformed to enter the inside (see FIG. 2).
In this way, when the large-diameter portion 4206 pushes through the through hole 4408 of the elastic member 44 and invades while compressing and deforming the elastic member 44, the reaction force acting on the large-diameter portion 4206 from the elastic member 44 causes the large-diameter portion 4206. Resistance occurs.

次に作用効果について説明する。
図１に示すように、地震や台風などが発生していない建物本体１６の静止状態では、柱脚キャップ３０の上部は柱脚２４０２の柱脚部２６にはめ込まれ、ロッド４２は初期位置に位置した状態となっている。 Next, the action and effect will be described.
As shown in FIG. 1, in the stationary state of the building body 16 in which no earthquake or typhoon has occurred, the upper portion of the column base cap 30 is fitted into the column base 26 of the column base 2402, and the rod 42 is positioned at the initial position. It is in a state of being.

小規模、中規模な地震が発生し、あるいは、台風による横風を受け、建物本体１６に水平力が作用し、そのモーメントにより建物本体１６が傾動し、建物本体１６の一側が浮き上がる方向に変位しようとする。
この場合、ロッド４２の外周面４２１０と弾性部材４４の貫通孔４４０８の内周面４４１０との摩擦抵抗と、大径部４２０６が弾性部材４４を押圧して貫通孔４４０８を押し広げる際の抵抗とにより、建物本体１６の上方への変位に対しての抵抗を生じる。したがって、建物本体１６の浮き上がりを抑制し、建物本体１６の損傷を抑制する上で有利となり、さらに建物本体１６に所在する人の不快感を軽減させる上で有利となる。 A small or medium-scale earthquake occurs, or a crosswind caused by a typhoon causes a horizontal force to act on the building body 16, and the moment causes the building body 16 to tilt and displace one side of the building body 16 in the direction of lifting. And.
In this case, the frictional resistance between the outer peripheral surface 4210 of the rod 42 and the inner peripheral surface 4410 of the through hole 4408 of the elastic member 44 and the resistance when the large diameter portion 4206 presses the elastic member 44 to expand the through hole 4408. As a result, resistance to upward displacement of the building body 16 is generated. Therefore, it is advantageous in suppressing the lifting of the building body 16 and suppressing damage to the building body 16, and further in reducing the discomfort of the person located in the building body 16.

また、大規模の地震が発生し、あるいは、大型の台風による横風を受け、建物本体１６に大きな水平力が作用し、そのモーメントにより建物本体１６が傾動し、建物本体１６の一側が大きく浮き上がる方向に変位しようとする。
この場合、ロッド４２の外周面４２１０と弾性部材４４の貫通孔４４０８の内周面４４１０との摩擦抵抗と、大径部４２０６が弾性部材４４を押圧して貫通孔４４０８を押し広げ弾性部材４４を圧縮変形させながら侵入する際の抵抗とにより、建物本体１６の上方への変位に対しての抵抗を生じる。
したがって、建物本体１６の浮き上がりを許容しつつ抵抗を生じ、建物本体１６の過大な浮き上がりを抑制する上で有利となる。そのため、建物本体１６の損傷を抑制する上で有利となり、建物本体１６に所在する人の不快感を軽減させる上で有利となる。
また、建物本体１６の浮き上がり後の降下時には、ロッド４２の外周面４２１０と弾性部材４４の貫通孔４４０８の内周面４４１０との摩擦抵抗と、大径部４２０６が弾性部材４４を押圧して貫通孔４４０８を押し広げ弾性部材４４を圧縮変形させながら抜けていく際の抵抗とにより、建物本体１６の下方への変位に対しての抵抗を生じる。
したがって、建物本体１６の浮き上がり後の降下時に降下に対して降下を許容しつつ抵抗を生じ、建物本体１６の衝撃を緩和する上で有利となる。そのため、建物本体１６の損傷を抑制する上で有利となり、建物本体１６に所在する人の不快感を軽減させる上で有利となる。 In addition, a large-scale earthquake occurs or a crosswind caused by a large typhoon causes a large horizontal force to act on the building body 16, and the moment causes the building body 16 to tilt and one side of the building body 16 to rise significantly. Try to displace to.
In this case, the frictional resistance between the outer peripheral surface 4210 of the rod 42 and the inner peripheral surface 4410 of the through hole 4408 of the elastic member 44 and the large diameter portion 4206 press the elastic member 44 to expand the through hole 4408 and expand the elastic member 44. Due to the resistance when invading while compressing and deforming, resistance to the upward displacement of the building body 16 is generated.
Therefore, resistance is generated while allowing the building body 16 to rise, which is advantageous in suppressing the excessive lifting of the building body 16. Therefore, it is advantageous in suppressing damage to the building body 16, and is advantageous in reducing the discomfort of the person located in the building body 16.
Further, when the building body 16 descends after being lifted, the frictional resistance between the outer peripheral surface 4210 of the rod 42 and the inner peripheral surface 4410 of the through hole 4408 of the elastic member 44 and the large diameter portion 4206 press the elastic member 44 to penetrate. The resistance to the downward displacement of the building body 16 is generated by the resistance when the hole 4408 is expanded and the elastic member 44 is pulled out while being compressed and deformed.
Therefore, when the building body 16 descends after being lifted, resistance is generated while allowing the descent against the descent, which is advantageous in alleviating the impact of the building body 16. Therefore, it is advantageous in suppressing damage to the building body 16, and is advantageous in reducing the discomfort of the person located in the building body 16.

（第２の実施の形態）
次に図３、図４を参照して、第２の実施の形態の建物本体の支持構造１０Ｅについて説明する。
第２の実施の形態は、第１の実施の形態の変形例である。
本実施の形態の抵抗機構２０Ｅの弾性部材４６は、下部に位置する弾性部材（下部弾性部材４６０２）と、上部に位置する弾性部材（上部弾性部材４６０４）とで弾性係数を異ならせて形成されている。
詳細には、弾性部材４６を、下部弾性部材４６０２が上部弾性部材４６０４よりも弾性係数の大きな部材で構成したものである。 (Second Embodiment)
Next, the support structure 10E of the building body of the second embodiment will be described with reference to FIGS. 3 and 4.
The second embodiment is a modification of the first embodiment.
The elastic member 46 of the resistance mechanism 20E of the present embodiment is formed so that the elastic member located at the lower part (lower elastic member 4602) and the elastic member located at the upper part (upper elastic member 4604) have different elastic coefficients. ing.
Specifically, the elastic member 46 is composed of a member in which the lower elastic member 4602 has a larger elastic modulus than the upper elastic member 4604.

第２の実施の形態によれば、第１の実施の形態の効果に加え、以下の効果を奏する。
大規模の地震が発生し、あるいは、大型の台風による横風を受け、建物本体１６に大きな水平力が作用し、そのモーメントにより建物本体１６が傾動し、建物本体１６の一側が浮き上がる方向に変位しようとする。
この場合、建物本体１６の上方への僅かな変位に対しては、ロッド４２の外周部４２１０と弾性部材４６の貫通孔４６０８の内周面４６１０との摩擦抵抗と、大径部４２０６が上部弾性部材４６０４を押圧して貫通孔４４０８を押し広げる際の抵抗とにより、建物本体１６の浮き上がりを許容しつつ第１の抵抗を生じ、建物本体１６の損傷を抑制する上で有利となり、建物本体１６に所在する人の不快感を軽減させる上で有利となる。
また、建物本体１６の上方への大きな変位に対しては、ロッド４２の外周部４２１０と弾性部材４６の貫通孔４６０８の内周面４６１０との摩擦抵抗と、大径部４２０６が下部弾性部材４６０２を押圧して貫通孔４２０８を押し広げ弾性部材４６を圧縮変形させながら侵入する際の抵抗とにより、建物本体１６の浮き上がりを許容しつつ第１の抵抗よりも大きな第２の抵抗を生じ、建物本体１６の損傷を抑制する上で有利となり、建物本体１６に所在する人の不快感を軽減させる上で有利となり、また、弾性部材４６の柱脚からの抜落を阻止する上で有利となる。 According to the second embodiment, in addition to the effects of the first embodiment, the following effects are exhibited.
A large-scale earthquake occurs or a crosswind caused by a large typhoon causes a large horizontal force to act on the building body 16, and the moment causes the building body 16 to tilt and displace one side of the building body 16 in the direction of lifting. And.
In this case, with respect to a slight upward displacement of the building body 16, the frictional resistance between the outer peripheral portion 4210 of the rod 42 and the inner peripheral surface 4610 of the through hole 4608 of the elastic member 46 and the upper elastic portion 4206 of the large diameter portion 4206. Due to the resistance when the member 4604 is pressed to expand the through hole 4408, the first resistance is generated while allowing the building body 16 to rise, which is advantageous in suppressing the damage of the building body 16. It is advantageous in reducing the discomfort of the person located in.
Further, with respect to a large upward displacement of the building body 16, the frictional resistance between the outer peripheral portion 4210 of the rod 42 and the inner peripheral surface 4610 of the through hole 4608 of the elastic member 46 and the large diameter portion 4206 are the lower elastic member 4602. The resistance when the elastic member 46 is compressed and deformed to invade the elastic member 46 by pressing the through hole 4208 to generate a second resistance larger than the first resistance while allowing the building body 16 to rise. It is advantageous in suppressing damage to the main body 16, it is advantageous in reducing the discomfort of a person located in the building main body 16, and it is advantageous in preventing the elastic member 46 from falling out from the column base. ..

また、上記の実施の形態にかかる建物本体の支持構造は、柱脚キャップの強度を柱の強度よりも弱く設計してもよい。そうすると、建物本体が浮き上がり後に降下することで柱が柱脚キャップに落下して衝撃を受けた場合に、柱脚キャップを主に損傷させることができるため、構造物の修繕時に柱脚キャップのみを交換すれば足りる。
また、第１、第２の実施の形態にかかる建物本体の支持構造では、１つの柱に対して１つのロッドを設けた構成としていたが、柱脚部の大きさが許せば２つ以上のロッドを設けた構成としてもよい。これにより、さらに大きな抵抗を生じさせることができるが、１つのロッドを設けた構成の場合はコストを抑えて支持構造を提供することができる。
また、同じ震度や横風であっても建物の構造やアスペクト比によってそれぞれの建物本体の変位は異なるため、個々の建物に合わせて建物本体の変位に対する抵抗を生じさせるよう設計することで、上述した効果を発揮させる上で有利となる。 Further, the support structure of the building body according to the above embodiment may be designed so that the strength of the column base cap is weaker than the strength of the column. Then, if the column falls on the column base cap and receives an impact by descending after the building body rises, the column base cap can be mainly damaged. Therefore, only the column base cap should be used when repairing the structure. It is enough to replace it.
Further, in the support structure of the building body according to the first and second embodiments, one rod is provided for one column, but if the size of the column base allows, two or more rods are provided. A rod may be provided. Thereby, a larger resistance can be generated, but in the case of the configuration provided with one rod, the cost can be suppressed and the support structure can be provided.
In addition, even if the seismic intensity and crosswind are the same, the displacement of each building body differs depending on the structure and aspect ratio of the building. It is advantageous in exerting the effect.

１０Ｄ、１０Ｅ 建物本体の支持構造
１２ 基礎梁
１２０２ 上面
１４ 柱
１６ 建物本体
１８ 建物
２０Ｄ、２０Ｅ 抵抗機構
２２ 床スラブ
２２０２ 開口
２４ 柱本体
２４０２ 柱脚
２４０４ 内周面
２４０６ 下縁
２６ 柱脚部
２８ 位置決め部
３０ 柱脚キャップ
３００２ キャップ本体
３００４ フランジ部
３２、４２ ロッド
３２０２ 下端フランジ
４２０４ 下部小径部
４２０６ 大径部
４２０８ 上部小径部
４４、４６ 弾性部材
４４０６ 外周面
４４０８、４６０８ 貫通孔
４４１０、４６１０ 内周面
４６０２ 下部弾性部材
４６０４ 上部弾性部材 10D, 10E Support structure of building body 12 Foundation beam 1202 Top surface 14 Pillar 16 Building body 18 Building 20D, 20E Resistance mechanism 22 Floor slab 2202 Opening 24 Column body 2402 Column base 2404 Inner peripheral surface 2406 Lower edge 26 Column base 28 Positioning part 30 Pillar base cap 3002 Cap body 3004 Flange 32, 42 Rod 3202 Lower flange 4204 Lower small diameter 4206 Large diameter 4208 Upper small diameter 44, 46 Elastic member 4406 Outer outer surface 4408, 4608 Through hole 4410, 4610 Inner peripheral surface 4602 Lower Elastic member 4604 Upper elastic member

Claims (8)

基礎梁から立設された柱を含む建物本体の前記基礎梁上での支持構造であって、
前記柱の柱脚に下方に開放された柱脚部が形成され、
前記基礎梁と前記柱脚部とにわたり、前記建物本体の浮き上がり時および浮き上がり後の降下時に抵抗を生じる抵抗機構が設けられ、
前記抵抗機構は、前記基礎梁の上面から上方に突設される下部小径部と、前記下部小径部の上部に設けられ前記下部小径部よりも断面積の大きい大径部とを有し前記柱脚部に挿入されるロッドと、
前記下部小径部が貫通されて前記大径部よりも下方の前記柱脚部の箇所に位置し前記柱脚部の内周面にその外周部が取着された弾性部材と、
を含んで構成されていることを特徴とする建物本体の支持構造。 It is a support structure on the foundation beam of the building body including columns erected from the foundation beam.
A column base that is open downward is formed on the column base of the column.
A resistance mechanism is provided across the foundation beam and the column base to generate resistance when the building body is lifted and when the building body is lowered after lifting.
The resistance mechanism has a lower small-diameter portion projecting upward from the upper surface of the foundation beam, and a large-diameter portion provided above the lower small-diameter portion and having a larger cross-sectional area than the lower small-diameter portion. The rod inserted into the leg and
An elastic member through which the lower small diameter portion is penetrated and located at a position of the column base portion below the large diameter portion and whose outer peripheral portion is attached to the inner peripheral surface of the column base portion.
The support structure of the building body, which is characterized by including. 前記大径部は前記ロッドの長さ方向に沿った長さを有し、
前記大径部の断面積は、前記大径部の前記長さ方向の中央が最も大きく形成されると共に前記長さ方向の中央から離れるにつれて次第に小さくなるように形成されている、
ことを特徴とする請求項１記載の建物本体の支持構造。 The large diameter portion has a length along the length direction of the rod, and has a length.
The cross-sectional area of the large-diameter portion is formed so that the center of the large-diameter portion in the length direction is formed to be the largest and the cross-sectional area of the large-diameter portion is gradually reduced as the distance from the center in the length direction increases.
The support structure of the building body according to claim 1. 前記大径部の上端に、前記大径部よりも外径の小さい上部小径部が設けられている、
ことを特徴とする請求項２記載の建物本体の支持構造。 An upper small diameter portion having an outer diameter smaller than that of the large diameter portion is provided at the upper end of the large diameter portion.
2. The support structure of the building body according to claim 2. 前記弾性部材は、その下部がその上部よりも弾性係数の大きな部材で形成されている、
ことを特徴とする請求項１〜３のいずれか１項記載の建物本体の支持構造。 The lower part of the elastic member is formed of a member having a higher elastic modulus than the upper part.
The support structure for a building body according to any one of claims 1 to 3, wherein the building body is supported. 前記基礎梁と前記柱脚との間に、前記基礎梁に対して前記柱脚の上方への変位を許容しつつ前記柱脚の水平方向の位置決めを行なう位置決め部が設けられ、
前記抵抗機構は、前記位置決め部の内側に設けられている、
ことを特徴とする請求項１〜４のいずれか１項記載の建物本体の支持構造。 A positioning portion is provided between the foundation beam and the column base for horizontally positioning the column base while allowing the foundation beam to be displaced upward.
The resistance mechanism is provided inside the positioning portion.
The support structure for a building body according to any one of claims 1 to 4, wherein the building body is supported. 前記位置決め部は、前記基礎梁の上面に取着され、その上部が前記柱脚部にはめ込まれ前記基礎梁の上面から上方に離れるにつれて断面積が次第に小さくなる中空状の柱脚キャップを含んで構成され、
前記抵抗機構は、前記柱脚キャップの内側を通って設けられている、
ことを特徴とする請求項５記載の建物本体の支持構造。 The positioning portion includes a hollow column base cap that is attached to the upper surface of the foundation beam, the upper portion of which is fitted into the column base portion, and the cross-sectional area gradually decreases as the distance from the upper surface of the foundation beam increases. Configured
The resistance mechanism is provided through the inside of the column base cap.
The support structure for a building body according to claim 5, wherein the building body is supported. 前記基礎梁と前記柱脚との間に、前記基礎梁に対して前記柱脚の上方への変位を許容しつつ前記柱脚の水平方向の位置決めを行なう位置決め部が設けられ、
前記抵抗機構は、前記位置決め部と前記柱脚部とにわたって設けられている、
ことを特徴とする請求項１〜４の何れか１項記載の建物本体の支持構造。 A positioning portion is provided between the foundation beam and the column base for horizontally positioning the column base while allowing the foundation beam to be displaced upward.
The resistance mechanism is provided over the positioning portion and the column base portion.
The support structure for a building body according to any one of claims 1 to 4, wherein the building body is supported. 前記位置決め部は、前記基礎梁の上面に取着され、その上部が前記柱脚部にはめ込まれ前記基礎梁の上面から上方に離れるにつれて断面積が次第に小さくなる中実状の柱脚キャップを含んで構成され、
前記抵抗機構は、前記柱脚キャップの上面と前記柱脚部とにわたって設けられている、
ことを特徴とする請求項７記載の建物本体の支持構造。 The positioning portion includes a solid column base cap that is attached to the upper surface of the foundation beam, the upper portion of which is fitted into the column base portion, and the cross-sectional area gradually decreases as the distance from the upper surface of the foundation beam increases. Configured
The resistance mechanism is provided over the upper surface of the column base cap and the column base portion.
7. The support structure of the building body according to claim 7.
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