A metal energy consumption limit and anti-drop beam device for bridges

Abstract

The invention discloses a metal energy-dissipating and anti-falling beam device for a bridge, which comprises a bottom plate, a limiting groove is arranged on the bottom plate, and an energy-dissipating component is arranged in the limiting groove, and the energy-consuming component comprises two A corrugated plate, the corrugated plate includes several C-shaped sections that protrude toward the same side, the openings of the C-shaped sections of the two corrugated plates are arranged facing away, and the length direction of the energy dissipation component is along the limit groove One end of the energy dissipation assembly is connected to end one of the limiting groove, and the other end is connected to the movable member, and the distance between the movable member and end two of the limiting groove is adjustable. The structure design of the device is scientific and simple, the processing is convenient, the installation is convenient, and the space utilization rate is high, which is conducive to improving the stability of the deformation of the energy-consuming components, ensuring the effectiveness of continuous energy consumption, and can significantly improve the anti-seismic performance of the anti-fall beams on the bridge structure , protect the bridge structure from earthquake damage, and benefit post-earthquake repairs.

Description

Technical field [0001] The present invention relates to the technical field of bridge anti-falling beam energy consumption, in particular to a metal energy consumption limit anti-falling beam device for bridges. Background [0002] The bridge limit device is the key structure of the bridge structure earthquake resistance, which is mainly used to prevent the falling beam caused by the relative displacement of the superstructure and the lower structure, so the anti-falling beam device is generally used in the bridge project in the earthquake area. [0003] In the existing technology, China's highway bridge anti-falling beam device generally uses concrete stops, high-strength steel tie rods, high-strength steel cables, etc., while the anti-falling beam device of railway bridges is generally based on I-beam processing into various types of stopper forms, which lack of buffering ability, and can not consume energy through their own deformation, often need to set up other dampers and o...

AI Technical Summary

Problems solved by technology

[0003] In the prior art, the anti-fall beam devices of highway bridges in my country generally adopt concrete stoppers, high-strength steel tie rods, high-strength steel cables, etc., while the anti-fall beam devices of railway bridges generally adopt various types based on I-beam processing. In the form of a block-like block, it lacks buffering capacity and cannot dissipate energy through its own deformation. It is often necessary to separately install other energy-dissipating devices such as dampers to dissipate seismic energy, resulting in an increase in project cost, and it is necessary to design and place the energy-dissipating device separately. Space, poor adaptability in high-intensity seismic areas

A small number of energy-dissipating limit devices combined with energy-dissipating beams also use corrugated plates as energy-dissipating components. However, in order to adapt to the small installation space, the corrugated plate has a limited amplitude and number of corrugations, resulting in deformation and displacement in practical applications. Limited, limited energy dissipation capacity, combined with the shape of the corrugated plate itself, in the actual application process, the shape of the corrugated plate will change greatly after a stretching and compression deformation, and it is difficult to continue to effectively exert the energy dissipation effect under the action of earthquakes

Images