【摘要】 结合上海市轨道交通莘闵线独柱墩设计 ,针对高架上铺设无缝线路的实际情况 ,建立了高架桥梁结构一桩基—土动力相互作用力学模型 ,采用工程场地波计算了高架桥的弹性、非线性地震响应 ,并对其进行抗震延性分析 ;重点探讨了高架桥上长钢轨对桥梁的纵向约束作用及后继结构对桥梁抗震性能的影响 ,分析了橡胶支座对高架桥的减隔震作用 ;提出了莘闵线高架桥合理抗震设计参数及抗震措施更多还原

【Abstract】 With the consideration of the single column pier design of Shanghai rail transit Xinmin Line and the jointless track laid on the elevated bridge, a mechanics model for the power interactions of elevated bridge structure pile foundation earth is set up. Calculation on elastic and non linear earthquake response with project site wave is carried out, and anti seismic ductility analysis is also done. The study is concentrated on the longitudinal binding on bridge from the long steel track laid on the elevated bridge, the anti seismic effects on bridge by descendant structure, as well as the analysis of damping effects on bridge of rubber seat. Design parameters and control measures of anti seismic for Xinmin Line Elevated Bridge are proposed.更多还原