Chained mode tensile supporting seat

Abstract

The invention relates to a chained mode tensile supporting seat, comprising at least two chain elements overlaid and sleeved together, wherein each chain unit comprises a chain head of which the outer diameter is D1, and a chain head provided with a cavity of which the inner diameter is D2, the cavity is used for holding the chain head of a lower part chain unit, the chain head is connected at the upper part of the chain body by a cylinder the diameter of which is D4, the center of the lower part of the cavity in the chain body is provided with a through hole for the cylinder to penetrate through, the inner diameter of the through hole is D3, and the relation of D1, D2, D3 and D4 is shown as the formula D2>D1>D3> D4, thus ensuring that the chain head can slide in the cavity without breaking away from the cavity. Compared with the prior art, the chained mode tensile supporting sea solves the problem of scare capability of the existing supporting seat, can realize large horizontal displacement between upper and lower buildings connected by the seat, and can effectively reduce the influence of earthquake disasters to ensure life and property security. In addition, the supporting seat also has the advantages of compact structure and little required space, thus being convenient for use under the condition of narrow space.

Description

Technical field [0001] The invention belongs to the technical field of civil engineering and bridge engineering, and specifically relates to a tensile bearing used for civil engineering structures and bridge engineering structures. Background technique [0002] In the design of building structure, the installation of seismic isolation and damping supports can effectively reduce earthquake disasters. [0003] According to the requirements of the national standard GB50011-2001 "Code for Seismic Design of Buildings", rubber isolation bearings are usually used as seismic isolation devices, but rubber isolation bearings can only withstand the pressure transmitted from above, and their ability to withstand tension is limited. Under the action of earthquakes, the seismic isolation supports of middle and high-rise buildings usually need to withstand large tensile forces. However, the existing seismic isolation supports have insufficient tensile capacity and their application range is restr...

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Problems solved by technology

[0003] According to the requirements of the national standard GB50011-2001 "Code for Seismic Design of Buildings", rubber isolation bearings are usually used as isolation devices, but rubber isolation bearings can only withstand the pressure transmitted from above, and the ability to withstand tension is limited

Under the earthquake, the seismic isolation bearings of medium and high-rise buildings usually need to bear a large tensile force, but the existing seismic isolation bearings have insufficient tensile capacity, and the application range is restricted. At the same time, the buildings may also undergo large horizontal displacements. Some bearings allow a relatively small range of horizontal displacement, which cannot meet the requirements of buildings and bridges to resist large-intensity earthquakes in engineering practice.

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