STUDY ON ASEISMIC POTENTIAL AND PERFORMANCE FOR COMPOSITE BRIDGE
STUDY ON ASEISMIC POTENTIAL AND PERFORMANCE FOR COMPOSITE BRIDGE
复制标题
组合桥梁抗震潜力及性能研究
DOI：
--
复制
发表时间：
2010
期刊：
影响因子：
--
通讯作者：
Wei, Kai
中科院分区：
文献类型：
--
作者：
Cao, Xin-Jian;Yuan, Wan-Cheng;Wei, Kai
针对钢-混凝土组合桥与混凝土桥梁在结构重量和刚度上的显著差异，以一座四跨连续梁桥为例，建立了简化的单自由度模型，采用反应谱方法计算了桥梁的地震需求。通过参数研究，研究了上部结构重量、柱截面刚度等因素对桥梁地震反应的影响。通过实心立柱混凝土桥梁的地震反应对比，研究了组合桥的抗震潜力和抗震性能。实心柱组合桥和空心柱组合桥。结果表明，组合桥的抗震要求比混凝土桥低；组合桥梁具有优越的抗震潜力和抗震性能。
For the significant differences in structural weight and stiffness between a steel-concrete composite bridge and a concrete bridge,a four-span continuous bridge was taken as an example,a simplified SDOF model was built and the seismic demands were calculated with response spectrum method.The effects of the factors on seismic response of the bridge such as the weight of a superstructure,the stiffness of a column section,etc.are investigated through a parametric study.The aseismic potential and performance for a composite bridge are investigated by the comparison of seismic responses among a concrete bridge with solid columns,a composite bridge with solid columns and a composite bridge with hollow columns.It is shown that composite bridges have lower seismic demands than concrete bridges;composite bridges have superior aseismic potential and performance.