JP4530298B1 - Hanging-type seismic isolation building - Google Patents
Hanging-type seismic isolation building Download PDFInfo
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- JP4530298B1 JP4530298B1 JP2009059553A JP2009059553A JP4530298B1 JP 4530298 B1 JP4530298 B1 JP 4530298B1 JP 2009059553 A JP2009059553 A JP 2009059553A JP 2009059553 A JP2009059553 A JP 2009059553A JP 4530298 B1 JP4530298 B1 JP 4530298B1
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Abstract
【課題】地震による地盤の横揺れがあっても、本体建物の揺れが小さくまた傾斜することのない、吊下げ式の免震建物を提供する。
【解決手段】地盤に立設した支柱に本体建物を吊下げ支持した建物において、その支柱に本体建物の重量に応じた曲げ弾性を持たせた柔構造とした。
【選択図】図１A suspension type seismic isolation building is provided in which the shaking of the main building is small and does not tilt even if the ground rolls due to an earthquake.
In a building in which a main building is suspended and supported on a column standing on the ground, the column has a flexible structure having bending elasticity corresponding to the weight of the main building.
[Selection] Figure 1
Description
本発明は、建物の免震方法の改良に関するものである。 The present invention relates to an improvement of a seismic isolation method for a building.
従来の吊下げ式建物として、高架橋を支柱として利用したものや、剛構造のタワー建物に本体建物を吊下げた免震建物が、特開２００３−７４２０８および特開平１１−２７０１７７に示されている。 As conventional suspension type buildings, one using a viaduct as a support or a base isolation building in which a main building is suspended from a rigid tower building is disclosed in Japanese Patent Laid-Open Nos. 2003-74208 and 11-270177. .
しかしながら従来の構造にあっては、剛構造の支柱に本体建物を吊下げ振子状にして揺れを吸収するものであり、その構成は支柱に加え振子の腕となる吊下げ具が必要である。しかも一本の吊下げでは振れにより本体建物に傾きが生じるため、いろいろな方向の揺れに対して本体建物に傾きを生じさせないようにするには少なくとも３箇所以上の吊下げを設定する必要があり構造が複雑となる。また、支柱が剛構造で柔軟性が無ないため、支柱自体が破壊しないように頑強な造りとする必要があり建設費用も高くなってしまう。 However, in the conventional structure, the main building is suspended in a pendulum shape on a rigid strut to absorb the shaking, and the structure requires a suspension tool as a pendulum arm in addition to the strut. Moreover, since the main building is tilted due to the swing of a single suspension, it is necessary to set at least three suspensions to prevent the main building from tilting due to shaking in various directions. The structure becomes complicated. In addition, since the struts are rigid and have no flexibility, it is necessary to make the struts robust so that the struts themselves are not destroyed, resulting in high construction costs.
本案発明は、地盤に立設した支柱に本体建物を吊下げ支持し、その支柱を本体建物の重量に応じた曲げ弾性を持たせた柔構造とした。 The present invention has a flexible structure in which the main building is suspended and supported on a column that is erected on the ground, and the column has bending elasticity corresponding to the weight of the main building.
上記の構造とすることにより、地盤が横揺れしても、支柱自体が撓って横揺れを吸収し、本体建物の揺れを最小化する免震効果が得られる。 By adopting the above structure, even if the ground rolls, the column itself can bend and absorb the roll, so that a seismic isolation effect can be obtained that minimizes the shaking of the main building.
以下、本発明の実施例について図を参照して説明する。 Embodiments of the present invention will be described below with reference to the drawings.
図１は本発明の実施例を示す図である。
地盤（４）に、家屋（２）の重量に応じた曲げ弾性をもたせた支柱（１）を立設し、支柱（１）の上には横梁（３）を渡して家屋（２）を吊下げている。支柱（１）と横梁（３）の係合は角度変化可動となっており、また横梁（３）と家屋（２）は一体に構成されている。
FIG. 1 is a diagram showing an embodiment of the present invention.
On the ground (4), a column (1) with bending elasticity corresponding to the weight of the house (2) is erected. It is lowered. The engagement between the support column (1) and the cross beam (3) is movable with changing angle, and the cross beam (3) and the house (2) are integrally formed.
図２は地震により地盤（４）が横揺れした状態を示す。支柱（１）の根元は地盤（４）と一緒に横揺れするが、支柱（１）の上端には家屋（２）の慣性により揺れと反対方向の力が働き、支柱（１）は撓って揺れを吸収する。このとき、支柱（１）と横梁（３）には若干の角度変化が生じるが、係合部が可動であることにより吸収される。地盤（４）の揺れが収まれば支柱（１）の撓りも元に戻って真直ぐな状態となる。その結果、家屋（２）は横揺れも傾くこともなく免震される。 FIG. 2 shows a state where the ground (4) rolls due to the earthquake. The base of the column (1) rolls together with the ground (4), but the upper end of the column (1) exerts a force in the opposite direction to the swing due to the inertia of the house (2), and the column (1) bends. To absorb shaking. At this time, a slight angle change occurs between the column (1) and the cross beam (3), but it is absorbed by the fact that the engaging portion is movable. When the shaking of the ground (4) is settled, the bending of the support column (1) also returns to the original state and becomes a straight state. As a result, the house (2) is seismically isolated without rolling or tilting.
支柱（１）の材質は、強度や弾性および製作のしやすさから、鉄やアルミなどの金属が適当であるが、金属は比較的に減衰が小さいため、揺り返しを緩やかに収めるためには、家屋（２）と地盤（４）の間に減衰装置（５）などを設けるのが好ましい。 The material of the support column (1) is suitably a metal such as iron or aluminum because of its strength, elasticity, and ease of manufacture. However, since the metal has a relatively low attenuation, It is preferable to provide an attenuation device (5) between the house (2) and the ground (4).
尚、事例では二本支柱の例を示したが、本案は、家屋の４隅を４本の支柱で支えるものや、家屋の中央部を一本の支柱で支えるものなど、建物の重量や形に応じていろいろな形態で適用されるものである。 In the example, the example of two pillars was shown. However, this proposal is based on the weight and shape of the building, such as those that support four corners of the house with four pillars, or those that support the central part of the house with one pillar. It can be applied in various forms depending on the situation.
本発明は、全ての建物に対する免震構造としての適用が可能である。 The present invention can be applied as a seismic isolation structure for all buildings.
１ 支柱
２ 家屋
３ 横梁
４ 地盤
５ 減衰装置
1
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2009059553A JP4530298B1 (en) | 2009-03-12 | 2009-03-12 | Hanging-type seismic isolation building |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2009059553A JP4530298B1 (en) | 2009-03-12 | 2009-03-12 | Hanging-type seismic isolation building |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP4530298B1 true JP4530298B1 (en) | 2010-08-25 |
| JP2010209643A JP2010209643A (en) | 2010-09-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| JP2009059553A Expired - Fee Related JP4530298B1 (en) | 2009-03-12 | 2009-03-12 | Hanging-type seismic isolation building |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60148965A (en) * | 1984-01-13 | 1985-08-06 | 内田 元亨 | Building having hanging structure |
| JPH10102817A (en) * | 1996-09-26 | 1998-04-21 | Takenaka Komuten Co Ltd | Structure of hanging floor |
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2009
- 2009-03-12 JP JP2009059553A patent/JP4530298B1/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60148965A (en) * | 1984-01-13 | 1985-08-06 | 内田 元亨 | Building having hanging structure |
| JPH10102817A (en) * | 1996-09-26 | 1998-04-21 | Takenaka Komuten Co Ltd | Structure of hanging floor |
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| Publication number | Publication date |
|---|---|
| JP2010209643A (en) | 2010-09-24 |
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