Anti-shock isolation control method and structure with anti-drop beam and anti-collision functions

Abstract

The invention discloses an anti-shock isolation control method and structure with the functions of anti-drop beam and anti-collision, belonging to the technical field of anti-shock isolation of bridges. The measuring device collects data in real time and transmits it to the control module; the control module combines the collected data to analyze and judge the lap length and change trend of the main girder I and the pier, the main girder II and the pier in real time, and the relationship between the main girder I and the main girder II. Spacing and change trend; the control module adjusts the distance between main girder Ⅰ and bridge pier according to the lap length and change trend of main girder Ⅰ and bridge pier, main girder Ⅱ and bridge pier, and the distance and change trend between main girder Ⅰ and main girder Ⅱ. , The input voltage of the damping device between the main girder II and the pier controls the movement of the main girder I and the main girder II relative to the pier. The invention can prevent the occurrence of collision disasters between falling beams and adjacent span main beams, and can comprehensively improve the ability of the bridge structure to resist earthquake risks.

Description

technical field [0001] The invention relates to the technical field of shock absorption and isolation of bridges. Background technique [0002] Under the action of strong earthquakes, bridge structures often suffer from falling girders and collisions between adjacent girders, which will lead to serious consequences. Seismic isolation design has proven to be an effective seismic strategy to minimize structural damage. However, the seismic isolation design in the prior art will lead to a large displacement of the bridge structure, and the risk of collision between the falling beam and the main beam of the adjacent span will increase. Traditional bridge shock-isolation bearings cannot effectively control this risk, or although they reduce this risk, they sacrifice the deformation capacity and energy dissipation capacity required for the full play of the shock-isolation mechanism. [0003] Therefore, in order to comprehensively improve the ability of bridge structures to resis...

AI Technical Summary

Problems solved by technology

However, the seismic isolation design in the prior art will lead to large displacement of the bridge structure, and the risk of collision between the falling beam and the main beam of the adjacent span will increase

Traditional bridge shock-isolation bearings cannot effectively control this risk, or although it reduces this risk, it sacrifices the deformation capacity and energy dissipation capacity required for the full play of the shock-isolation mechanism

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