An energy-dissipating self-resetting bridge pier structure

Abstract

The invention relates to an energy-dissipation self-resetting bridge pier column structure, which belongs to the field of earthquake resistance and shock absorption of structural engineering. The energy-dissipation self-resetting bridge pier column structure comprises a reinforcement concrete column, a stay cable, a damping energy dissipation device, a foundation, a longitudinal bar, a hoop bar, a curved reinforcing steel bar, a rubber layer, a stay cable anchor tool, an anchor rod and an anchor rod anchor tool, wherein the damping energy dissipation device comprises a spring, a liquid viscous damper and a gear. The damping energy dissipation device is cable-stayed to the top end of the reinforcement concrete column through the stay cable, the self-resetting function of a pier column is realized through the spring in the damping energy dissipation device, and the energy dissipation of the pier column in the reciprocating movement in the earthquake can be realized through the liquid viscous damper in the damping energy dissipation device. In addition, the energy dissipation function under the effect of the earthquake can be realized through the rubber layer between the reinforcement concrete column and the foundation, so that the self-resetting energy dissipation function of the bridge pier column system is realized, and the energy-dissipation shock absorption of the bridge can be realized.

Description

technical field [0001] The invention relates to an energy-consuming self-resetting bridge pier column structure, which belongs to the technical field of anti-seismic and shock-absorbing bridge engineering. Background technique [0002] With the development of social economy, China's transportation industry is also developing at a high speed. China's highways and other transportation facilities have sprung up like mushrooms after rain. At the same time, a large number of bridges are being built. However, with the frequent occurrence of earthquake disasters in recent years, especially the Sichuan earthquake has caused major damage to China's construction facilities, and many bridges have suffered devastating damage in the Wenchuan earthquake. The main damage forms of bridges in earthquakes are bridge piers breaking, resulting in falling girder damage or direct loss of main girders. As a structure that supports the weight of the superstructure of the bridge and transfers the we...

AI Technical Summary

Problems solved by technology

However, this method has little effect on large-scale earthquakes. At present, there is no effective anti-seismic and shock-absorbing device for preventing bridge piers from being damaged by earthquakes. In short, the anti-seismic effect of bridges is not obvious at present. a lot of problems

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