论文部分内容阅读
建立了澳门澳凼第三大桥的9跨连续梁桥的梁体、桥墩和基础共同工作的空间有限元分析模型,建立了3种桥梁支座形式的弹簧单元恢复力模型;并分别在顺、横桥向输入EL-Centro波进行连续梁桥的对比时程分析。研究表明:采用铅芯橡胶支座能延长结构的周期;减小桥墩底部的弯矩和剪力,并使剪力得以合理分配;同时梁体位移也得到控制,隔震效果显著。
The space finite element analysis model for the joint work of girders, piers and foundations of 9-span continuous girder bridges on the third bridge of Macau-Taipa was established. Three types of spring-unit restoring force models for bridge abutment were established. Contrast Time History Analysis of Continuous Beam Bridge by Entering EL-Centro Wave in Transverse Bridge. The results show that the use of lead rubber bearing can prolong the period of the structure, reduce the bending moment and shear force at the bottom of piers, and distribute the shear force rationally. At the same time, the displacement of the beam body is also controlled and the isolation effect is remarkable.