基于时程分析的桥梁支座抗震性能对比研究
发布时间:2018-07-27 13:56
【摘要】:为研究摩擦摆式支座的抗震性能,结合三江口黄河特大桥地区的地震参数,对摩擦摆式支座和盆式橡胶支座进行了动力时程分析和对比。结果表明,在E1地震的作用下,两种支座的结构内力相近;在E2地震的作用下,摩擦摆式支座的整体抗震效果要明显优于盆式橡胶支座。研究结果对高震区大跨连续梁支座的设计,具有一定的理论和指导意义。
[Abstract]:In order to study the seismic performance of the friction pendulum bearing, the dynamic time history analysis and comparison of the friction pendulum bearing and the basin rubber bearing are carried out in combination with the seismic parameters of the Huanghe River Bridge area in the Sanjiangkou. The results show that under the action of E1 earthquake, the internal forces of the two kinds of supports are similar, and under the action of E2 earthquake, the overall seismic effect of friction pendulum bearing is obviously better than that of basin type rubber bearing. The results are of theoretical and instructive significance to the design of long span continuous beam support in high seismic area.
【作者单位】: 甘肃省交通规划勘察设计院有限责任公司;
【分类号】:U443.36
[Abstract]:In order to study the seismic performance of the friction pendulum bearing, the dynamic time history analysis and comparison of the friction pendulum bearing and the basin rubber bearing are carried out in combination with the seismic parameters of the Huanghe River Bridge area in the Sanjiangkou. The results show that under the action of E1 earthquake, the internal forces of the two kinds of supports are similar, and under the action of E2 earthquake, the overall seismic effect of friction pendulum bearing is obviously better than that of basin type rubber bearing. The results are of theoretical and instructive significance to the design of long span continuous beam support in high seismic area.
【作者单位】: 甘肃省交通规划勘察设计院有限责任公司;
【分类号】:U443.36
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