【摘要】 基于Housner模型,考虑地震影响下晃激荡水体与槽身间的相互作用力,建立了流固耦合动力分析模型,并以南水北调中线工程为例进行了大型多槽式渡槽的动力特性与地震位移时程响应分析。结果表明,开敞式多侧墙槽身横向抗震能力起控制作用,尤其应加强边墙、中墙两端抗震防护,可为类似工程抗震设计提供参考。更多还原

【Abstract】 Based on the Housner model,dynamic analysis model of fluid solid coupling for large-sized multi-troughs aqueduct is established by considering interaction of sloshing water and aqueduct-body under influence of earthquake.Taking the South-North Water Transfer Project in middle routes for an example,the dynamic characteristics and seismic-displacement responses with time-history for large-sized multi-troughs aqueduct are analyzed.The result shows that the transverse seismic of the open style and multi sidewall aqueduct body play the control action,especially the seismic protection in the two ends of sidewall and midwall should be strengthen.更多还原