High-bearing-capacity tensile seismic isolation device with two-way sliding support

Abstract

The invention discloses a high-bearing-capacity tensile seismic isolation device with a two-way sliding support, and belongs to the technical field of seismic isolation of civil engineering structures. The device comprises an upper support plate, an upper horizontal sliding groove, a plurality of U-shaped supports, a support sliding block, a sliding groove limiting machine, a curved surface sliding ball, a curved surface sliding groove, a lower sliding surface, a lower horizontal sliding groove and a lower support plate. The curved surface sliding ball moves synchronously with the upper support plate. The curved surface sliding groove is capable of rotating and swinging around the curved surface sliding ball. The vertical distance between a bottom sliding surface of the curved surface sliding ball and a bottom sliding surface of the curved surface sliding groove is equivalent to the vertical relative displacement of upper limbs and lower limbs of the multiple U-shaped supports of the same specification. The upper horizontal sliding groove and the lower horizontal sliding groove can ensure the in-plane buckling energy consumption of the U-shaped supports without the out-of-plane torsional buckling, so that the service life of the U-shaped supports is longer. The seismic isolation device is high in bearing capacity, good in horizontal seismic isolation, high in tensile energy consumption, economical and durable, and environmentally friendly.

Description

technical field [0001] The invention belongs to the field of seismic isolation of civil engineering structures, and more specifically relates to a high-bearing tensile seismic isolation device with bidirectional sliding supports. Background technique [0002] The seismic isolation technology of civil engineering structures mainly isolates the ground motion from the superstructure through the isolation device, so as to achieve the effect of reducing the seismic response of the structure. The existing types of isolation devices mainly include natural rubber isolation bearings (LNR), lead rubber isolation bearings (LRB), and high damping rubber isolation bearings (HDR). These isolation bearings are widely used in many civil structures, especially those sensitive to earthquake action, wind load, blast impact load, etc. However, with the development of contemporary civil structures towards large-span, super-high-rise, large-scale complex, high surface pressure and other structur...

AI Technical Summary

Problems solved by technology

However, with the development of contemporary civil structures towards large-span, super-high-rise, large-scale complex, high surface pressure and other structural forms, traditional seismic isolation bearings may have insufficient bearing capacity and weak tensile capacity, making seismic isolation bearings problems such as not working properly

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