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某大型综合交通枢纽项目场地中间有多条地铁、铁路线穿过,其中部分地铁、铁路已运营,另外在场地范围内还有两个公交换乘中心及多条市政道路。在包含地铁、铁路及公交换乘中心在内的大型交通枢纽上方建设大平台来进行商业二次开发,这在国内尚属首次。而因外部边界条件众多、现有场地条件的限制及施工条件苛刻等众多不利因素的影响,给结构设计带来巨大挑战。介绍结构设计中解决这些问题的方法,如层间组合隔震技术、预制叠合构件和吊柱悬挂楼面等,并给出了主要分析结果及结论。
In the middle of a large-scale integrated transport hub project, there are a number of subways in the middle of the project. Trains pass through some of the subways and railways. In addition, there are two bus interchange centers and municipal roads within the venue. For the first time in China, it is the first time that a large platform for large-scale transport hubs including subways, railways and public transport interchange centers be constructed for commercial redevelopment. However, due to the numerous external boundary conditions, the limitations of existing site conditions and the harsh construction conditions, many adverse factors have brought great challenges to structural design. The methods to solve these problems in the structural design are introduced, such as the combination of seismic isolation technology, the prefabricated laminated components and the suspended floor of the suspended column. The main results and conclusions are also given.