跨越断层地震动对结构地震反应的研究进展

地下管道、交通、电力系统等是重要的生命线工程,跨越断层的结构地震时具有较大的破坏风险,确保它们在地震时安全可靠的运行具有重要的意义。本文首先介绍了跨越断层地震动的基本特征,然后从跨越断层地震动模拟、跨越断层地震动对结构的影响以及振动台试验等几个方面进行论述,总结了跨越断层地震动对结构地震反应的研究现状和存在的问题。最后针对大跨空间结构需要研究的重点问题进行了展望。

Research Progress of Seismic Responses on Engineering Structures Crossing Faults

Underground pipelines, transportation, and power systems are important lifelines in engineering and often disrupted during earthquakes. Thus, ensuring the safety and reliable operation of these system is of extreme importance. First, this paper introduces the basic characteristics of cross-fault ground motion through ground motion simulation, structural responses, and shaking-table tests, among others. The current research situation and problems related to the seismic responses of different cross-fault structures in earthquakes are then summarized. Finally, important research problems of the seismic response of cross-fault large span space structures are discussed.