The damage caused by earthquake is irresistible for human beings, and the structure with poor robustness ismost affected by earthquake. Especially when traffic arteries like bridges and highways are affected, the losses will beunimaginable. To reduce the loss in earthquake, the paper targets the long-span cable-stayed bridge and discusses amethod of structural damage control. The energy-dissipation auxiliary pier structure can protect the bridge under strongshock, which has an important realistic significance for reducing losses of the bridge. The model of auxiliary pier is builtin the paper. Through the experiment, many aspects including destructive process, hysteretic characteristics, ductility andhysteretic energy, equivalent viscous damping ratio and deforming capacity of energy-dissipation construction are analyzed.Structural damage control can well enhance the safety of bridge. The internal force and displacement of main componentscan be reduced correspondingly, and thus the safety of long-span cable-stayed bridge is well protected.
展开▼
