Bridge anti-seismic support

Abstract

The invention relates to a bridge anti-seismic support and belongs to the technical field of bridges. Specifically, a middle support body is further arranged between an upper support body and a lowersupport body; piston cylinders are arranged at the four corners of the upper support body and the four corners of the middle support body correspondingly, and damping holes are formed in the four corners of the upper support body; piston rods of the piston cylinders are inserted into the damping holes, and limiting bulges are further arranged on the piston rods of the piston cylinders; two or moregrooves are further formed in the bottom of the upper support body, two or more steel uprights are arranged at the top of the middle support body, the diameter of each groove is larger than the diameter of the corresponding steel upright, and the tops of the steel uprights are sleeved with buffer rubber column caps; and a plurality of swing edge blocks are arranged at the bottom of the middle support body, a plurality of swing grooves are formed in the lower support body, the swing edge blocks are mounted in the swing grooves in an inserted mode, and U-shaped buffer rubber pads are arranged between the swing edge blocks and the swing grooves. The bridge anti-seismic support is reasonable in structural design and convenient to mount, seismic energy can be effectively dissipated, the anti-twisting ability is improved, and the bridge anti-seismic support is widely used.

Description

technical field [0001] The invention relates to a bridge anti-seismic bearing, which belongs to the technical field of bridges. Background technique [0002] The bridge bearing is an important component that connects and constrains the upper and lower structures of the bridge. Its interaction with the upper and lower structures of the bridge is quite complicated, for example, including the transmission of constant loads and active loads to the piers and foundations, and through the completion of the beam structure. The required deformation, horizontal displacement and rotation angle, therefore, the bearing is very important for the bridge. The difference in bearings often affects the force transmission between the upper and lower structures of the bridge, thereby affecting the overall structure of the bridge. [0003] Existing anti-seismic bearings for bridge structures include lead-core rubber bearings, high-damping rubber bearings, anti-seismic basin bearings, friction pe...

AI Technical Summary

Problems solved by technology

Although these types of seismic bearings are simple in structure, they have problems such as poor torsion resistance, insufficient limit capacity, and low impact resistance under the action of earthquake loads, which lead to the destruction of the bridge under the action of earthquake loads and directly affect the seismic load. Unimpededness of lifelines during disaster relief

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