Lead Body Enclosed Bearing Constrained by Layered and Continuous Constraints

Abstract

The invention provides a lead enclosed type support constrained by loops continuously in a layered mode. The support solves the problems that when an existing lead core rubber support moves laterally and deforms greatly, resistant-lateral rigidity is low, horizontal resilience is low, a lead core is prone to damage and failure, and mechanical properties are poor. A support basal body is formed by alternately arranging a plurality of steel plate layers and rubber bonding layers up and down in an overlaid and bonding mode and is provided with at least one vertical hole, a plurality of constraint steel hoops are arranged in the holes and are of a closed circular structure, inner ring walls of the constraint steel hoops are of an arc structure, the vertical thickness of the constraint steel hoops is larger than the thickness of the rubber bonding layers, the upper surface of the constraint steel hoop on the uppermost layer is located between the upper end face and the lower end face of the steel plate layer on the uppermost layer, and a cavity inside the constraint steel hoops is filled with enclosed lead tightly attached to the cavity in an embedded mode. Lateral moving rigidity of the support is enhanced, meanwhile the problem of ductile fracture damage to the lead is avoided, and stress operation is stable and mechanical properties are excellent under reciprocating horizontal lateral moving.

Description

technical field [0001] The invention relates to the field of earthquake resistance and disaster prevention in civil engineering, in particular to a seismic isolation support in civil construction engineering, in particular to a lead-enclosed support in which hoops are layered and continuously constrained. Background technique [0002] The installation of rubber isolation bearings in the isolation structure can effectively reduce the vibration of the engineering structure under the horizontal earthquake, reduce the seismic acceleration, seismic internal force, displacement and other effects of the structure, and improve the seismic performance of the engineering structure under rare earthquakes. Improve the anti-seismic ability. [0003] Although the lateral stiffness of the rubber isolation bearing is small, the structural period can be greatly extended and the seismic response can be effectively reduced. However, the horizontal lateral resistance performance of ordinary rub...

AI Technical Summary

Problems solved by technology

[0009] In order to solve the problems of low lateral stiffness, small horizontal restoring force, easy damage to the lead core, and poor mechanical properties of the existing lead-core rubber bearings during large lateral displacements, the present invention provides a high lateral stiffness, Large horizontal restoring force, excellent performance and easy to manufacture lead body enclosed bearing with layered and continuous restraint of hoop

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