基于破坏同步性的高桥墩体系抗震设计方法研究

发布时间：2018-05-03 03:15

本文选题：高墩 + 墩高比　；参考：《自然灾害学报》2014年06期

【摘要】：将高墩桥梁结构中所有的桥墩作为一个完整体系,通过研究桥墩体系在地震作用下的破坏同步性探索了桥墩体系抗震能力发挥的情况。根据破坏标准和破坏同步性系数,研究了基于强度方法设计的桥墩体系的破坏同步性,分析了其不足之处。在此基础上,提出了基于桥墩体系破坏同步性的抗震设计方法,并对该方法与基于强度的设计方法进行了对比分析。工程算例分析结果表明,该方法对于充分发挥桥墩体系中所有桥墩的抗震潜能是有效的。
[Abstract]:All the piers in the bridge structure with high piers are regarded as a complete system. The seismic capacity of the pier system is studied by studying the synchronism of the damage of the pier system under the earthquake. According to failure criterion and failure synchronicity coefficient, the failure synchronism of pier system designed by strength method is studied, and its deficiency is analyzed. On this basis, a seismic design method based on the synchronous failure of pier system is proposed, and the comparison between this method and the design method based on strength is carried out. The results of engineering examples show that the method is effective to give full play to the seismic potential of all piers in the system of bridge piers.
【作者单位】：中国地震局工程力学研究所中国地震局地震工程与工程振动重点实验室;
【基金】：“十二五”国家科技支撑计划项目(2012BAK15B02) 国家自然科学基金青年科学基金项目(51108432)
【分类号】：U442.55

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