A high bearing capacity tensile and seismic isolation device with two-way sliding support

Abstract

The invention discloses a high bearing capacity anti-shock isolation device with two-way sliding supports, which belongs to the technical field of earthquake isolation of civil engineering structures. The device includes an upper supporting plate, an upper horizontal sliding groove, a U-shaped support, a supporting sliding block, a sliding groove limiter, a curved surface sliding ball, a curved surface sliding groove, a lower sliding surface, a lower horizontal sliding groove and Lower support plate. The curved sliding ball moves synchronously with the upper support plate. The curved surface sliding groove can rotate and swing around the curved surface sliding ball. The vertical distance between the bottom sliding surface of the curved surface sliding ball and the bottom sliding surface of the curved surface sliding groove is equal to the vertical relative displacement of the upper and lower limbs of a plurality of U-shaped supports with the same specification. The horizontal sliding groove and the lower horizontal sliding groove can ensure that the in-plane buckling energy consumption of the U-shaped support occurs, and no out-of-plane torsional buckling occurs, so that the U-shaped support has a longer service life. The seismic isolation device has high bearing capacity, good horizontal isolation, and high tensile energy consumption characteristics, is economical, 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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