A lock-type tension-limiting shock-isolation support

Abstract

The invention discloses a fastener type tensile limiting and damping bearing. The fastener type tensile limiting and damping bearing comprises a damping rubber pad, an upper steel plate and a lower steel plate, the upper steel plate is anchored to an upper structure, and the lower steel plate is anchored to a lower structure. The fastener type tensile limiting and damping bearing is characterized in that tensile limiting mechanisms are symmetrically arranged on the bottom of the upper steel plate and each composed of a locking groove, a pull rod with a fastener at one end and a sleeve, the pull rods are sleeved with the sleeves with supports and connected to the sleeves in a sliding mode, the fasteners are inserted into the locking grooves in a sliding connection mode, the supports are anchored to the lower structure, and the hook-shaped locking grooves are fixedly connected to the upper steel plate. Compared with the prior art, the fastener type tensile limiting and damping bearing has the advantages that the structure is simple, the horizontal shear resistance and the vertical tensile deformation resistance are high, the stability is greatly improved, and the problems that high-rise buildings may topple in the earthquake damping process and the damping bearing is overstressed are well solved. Thus, laminated rubber damping bearings for high-rise buildings in severe earthquake regions can be widely applied and popularized.

Description

technical field [0001] The invention relates to the technical field of construction engineering shock isolation, in particular to a lock-type anti-tension and position-limiting shock-isolation support. Background technique [0002] The seismic isolation of construction projects is to extend the natural vibration period of the structure and reduce the input of horizontal seismic action, thereby reducing the seismic response of the upper structure and effectively improving the seismic performance of the structure to protect the safety of personnel and equipment inside the building. It is especially suitable for use in areas with good site conditions and high seismic intensity. In the existing seismic isolation system, the laminated rubber isolation bearing isolation system is mainly used to isolate the horizontal earthquake action, and has become the mainstream of the isolation system in the world. The use of seismic isolation technology can effectively reduce the seismic acc...

AI Technical Summary

Problems solved by technology

However, due to the obvious structural overturning effect in high-rise buildings, the insufficient tensile performance of the laminated rubber bearings may easily lead to damage or even destruction of the rubber bearings during the overturning process, especially the current building design codes for the tension of the rubber bearings. The stress is limited, which affects the promotion and application of the prior art laminated rubber isolation bearings in high-rise buildings, and also limits the development of high-rise building projects in high-intensity earthquake areas

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