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该文对一座试设计跨径达600 m的钢筋混凝土拱桥进行了地震响应分析,有限元模拟采用非线性纤维单元。通过对该桥恒载(初应力)受力分析和地震响应的分析,对大跨径钢筋混凝土拱桥对不同地震动的反应和结构的抗震性能进行了评价。
In this paper, a seismic response analysis of a RC arch bridge with a span of 600 m was designed. The nonlinear finite element method used the nonlinear fiber unit. Through the analysis of the stress and the seismic response of the bridge under constant load (initial stress), the response of the long-span reinforced concrete arch bridge to different ground motions and the seismic performance of the structure are evaluated.