【摘要】 连续梁桥是具有较好抗震性能的桥型之一。利用连续梁桥等效模型的简化分析,并结合反应谱理论探讨桥墩扭转刚度对连续梁横桥向地震反应的影响;然后针对我国典型的连续梁桥进行横桥向模态分析和地震反应分析,探讨一联连续梁桥在不同孔数、不同场地类别以及不同加速度峰值时桥墩扭转刚度对连续梁桥横桥向地震反应的影响。分析表明:桥墩扭转刚度对连续梁桥横桥向各个桥墩的内力影响很小,可以忽略不计。更多还原

【Abstract】 Continuous bridge is one of good styles with better earthquake-resistance performance.Based on the the equivalent model of continuous bridge and the theory of response spectrum,the piers torsion-stiffness is analyzed.Then to used continuous bridge,influence of the piers torsion stiffness on the earthquake responses in the transverse direction is analyzed in different spans,field and acceleration peak.The result shows that the piers torsion stiffness has less influence on transverse piers forces of continuous bridge.更多还原