Transverse cushioning, energy absorption, anti-seismic and anti-drop beam structure with conical butting balls and check blocks

Abstract

The invention discloses a transverse cushioning, energy absorption, anti-seismic and anti-drop beam structure with conical butting balls and check blocks. The transverse cushioning, energy absorption,anti-seismic and anti-drop beam structure comprises check block bodies, the conical rubber butting balls, steel frame anti-collision plates and veneers. The trapezoidal check block bodies are arranged at two ends of the upper portion of a pier top cover beam; seismic reduction and isolation supports are arranged on the top surface of the pier top cover beam, and a beam is supported on the seismicreduction and isolation supports; the hollow conical rubber butting balls are anchored on the inner sides of the trapezoidal check block bodies at the two ends of the upper portion of the pier top cover beam and are anchored with the steel frame anti-collision plates, the ultrahigh-molecular-weight polyethylene veneers are arranged on the surfaces of the steel frame anti-collision plates, the steel frame anti-collision frames are constrained on the trapezoidal check block bodies by iron chains, and a certain distance is reserved between each of the conical rubber butting balls and the steel frame anti-collision plates and the beam. The transverse cushioning, energy absorption, anti-seismic and anti-drop beam structure has the advantages of simple structure, high practicality and compatibility, good coordinability, low cost, convenience in construction and the like. Besides, the beam can be effectively prevented from being locally destroyed, effects of anti-drop beams can be realized,the conical rubber butting balls are high in energy absorption and low in reaction force and are not in direct contact with the beam, and accordingly bodies are free of abrasion and long in service life.

Description

technical field [0001] The invention belongs to the field of anti-seismic technology of bridges, and in particular relates to an anti-falling beam structure of a transverse bridge with a conical ball-dependent buffering energy-absorbing anti-seismic block. Background technique [0002] my country is located at the junction of the circum-Pacific seismic belt and the Eurasian seismic belt. It is a country with many earthquakes. The earthquake damage in my country has the characteristics of high intensity, high frequency and wide distribution. Especially since the 1980s, my country Entering a new seismically active period, the frequency of earthquakes has increased significantly. In recent years, a large number of road bridges have been built in our country. Once they are damaged in an earthquake, it will cause great losses, pose a great threat to people's lives and property, and restrict the development of our country's social economy. Several major earthquakes in our country ...

AI Technical Summary

Problems solved by technology

There is a rigid collision between the ordinary reinforced concrete block and the beam body. If the rigidity of the block is too small, the block is prone to irreparable damage; and when the rigidity of the block is too large, the beam body is likely to be partially damaged and the block and the beam are easily damaged. The collision effect between the girders is transmitted to the upper expansion joint and the lower pier to cause damage

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