Three-dimensional shock isolation device and manufacturing method thereof

Abstract

The invention provides a three-dimensional shock isolation device and a manufacturing method thereof. The three-dimensional shock isolation device comprises an upper-layer connecting component and a lower-layer connecting component, a low-compression-rigidity rubber support is connected between the upper-layer connecting component and the lower-layer connecting component; the upper-layer connecting component is provided with a pair of parallel first guide structures, and the pair of first guide structures are correspondingly arranged on the two opposite side positions of the low-compression-rigidity rubber support respectively; the lower layer connecting component is provided with a pair of parallel second guiding structures, and the extending direction of the first guiding structures is perpendicular to that of the second guiding structures; the two ends of each rigid screw assembly are matched with the corresponding first guide structure and the corresponding second guide structure respectively. According to the three-dimensional seismic isolation device and the manufacturing method thereof, on the premise that it is guaranteed that the horizontal seismic isolation performance of the support is not affected, vertical deformation can be reliably controlled, and the vertical seismic isolation effect is improved.

Description

technical field [0001] The invention relates to the technical field of seismic isolation of building bridges, in particular to a three-dimensional seismic isolation device and a manufacturing method thereof. Background technique [0002] The basic principle of seismic isolation technology is to prolong the natural vibration period of the structure and increase the structural damping by setting the seismic isolation device, thereby effectively reducing the seismic response of the structure. At present, the seismic isolation devices that have been widely used in engineering mainly include laminated rubber bearings and sliding bearings. [0003] Earthquakes are divided into horizontal earthquakes and vertical earthquakes. As mentioned above, the seismic isolation research for horizontal ground motion has been developed relatively maturely, and a large number of seismic isolation bearings have been successfully applied in engineering practice; while the seismic isolation resear...

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Problems solved by technology

The thick-layer rubber bearing isolation system with low compression stiffness has a large vertical deformation under the gravity load of the structure; the series combination system of laminated rubber bearings and helical springs or butterfly springs has a large Stability; the series combination system of laminated rubber bearings and air springs has the risk of gas leakage; the combination system of laminated rubber bearings and vertical TMD can only play a role in energy consumption in a fixed seismic frequency range, once it exceeds its design frequency range , the combined system will increase the vertical seismic response of the structure

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