Force-measurement type laminated rubber bearing based on optical fiber deformation sensor

Abstract

The invention relates to an intelligent force-measurement type laminated rubber bearing based on an optical fiber deformation sensor. The intelligent force-measurement type laminated rubber bearing comprises a laminated rubber bearing body and is characterized in that the optical fiber deformation sensor is arranged in the laminated rubber bearing body, an inhaul cable is arranged in the laminated rubber bearing body, one end of the inhaul cable is connected with the optical fiber deformation sensor, the other end of the inhaul cable is fixed to a steel plate in the laminated rubber bearing body, and the deformation sensor adapts to the deformation characteristic of the bearing under dead load and live load stress conditions. By the adoption of the intelligent force-measurement type laminated rubber bearing, sudden and accumulative damage of the bearing can be found in time and recorded, the service condition of the bearing is evaluated, and then reasonable treatment measures can be taken in time. By monitoring the stress condition of the bearing, the traffic load condition of a bridge can be reflected indirectly, and overload vehicles can be found in time.

Description

technical field [0001] The invention relates to the field of bridge support products, and is an intelligent force-measuring plate rubber support based on an optical fiber deformation sensor. Background technique [0002] The bridge bearing is an important component connecting the upper structure and the lower structure of the bridge, but it is a component that is easily damaged but not suitable for repair in the bridge structure. It usually needs to be replaced after it is damaged. The replacement construction will affect or interrupt the traffic, which is easy to cause economic damage. loss and adverse social impact. [0003] With the change of bridge traffic load and environmental conditions, the force of the bearing fluctuates greatly. Taking the rubber bearing as an example, the long-term bias may lead to local rubber cracking failure of the bearing, rubber body extrusion and other diseases, and may also cause The supporting force is insufficient or even empty. In addi...

AI Technical Summary

Problems solved by technology

However, due to factors such as the high height of bridge piers, complex structures and auxiliary facilities, the inspection work often faces many problems and difficulties, and the frequency and inspection effect of bridge bearing inspections are not ideal.

Therefore, the damage to the bridge support cannot be discovered in time, the support cannot be replaced in time, and the potential safety hazards of the bridge structure caused by it cannot be eliminated.

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