城市大型地下互通夹空层-隧道体系空间的抗震性能研究

摘要:

依托南京惠民大道综合改造工程,针对典型地下互通空间结构在地震作用下的动力响应问题展开研究,采用有限元法模拟计算,建立夹空层-隧道体系下的工程简化模型,对夹空层-隧道结构体系进行抗震性能分析,并研究该体系条件下的夹空层开发利用可能性。针对具体夹空层结构的抗震性能提出有效的抗震措施,该方法可为相似类型工程的空间规划提供有益的参考。

Abstract:

Based on the comprehensive reconstruction project of Huimin Avenue in Nanjing, the dynamic response of typical underground interchange space structures under earthquake is studied. The finite element method is used to simulate and calculate. The engineering model under void-layer-tunnel system is established, and seismic performance of void-layer-tunnel structure system is analyzed. Then the possibility of development and utilization of void layer under the condition of this system are studied. Effective seismic measures are proposed for the seismic performance of concrete void layer structures. This method can provide a useful reference for the spatial planning of similar projects.