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High-position Seismic Isolation of Press Center Structures at Shanghai International Circuit

机译：上海国际赛道新闻中心结构的高位地震隔离

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摘要

An engineering application of a combined isolation system to Press Center structures at Shanghai International Circuit (SIC) is presented in this paper. Four groups of the combined isolation system, which is composed of a center-located pot-type bearing and four surrounding laminated rubber bearings, are designed to connect an upper steel mega-truss structure to its two supporting structures at about 30 m level, so as to form a high-position isolation system. The engineering outline of the project is first introduced. Then, the features and working principles of the high-position isolation system are described. Followed is the detailed design of the isolation system. Finally, the seismic responses of the structures with the isolation system are calculated and compared with those of the structures with hinged joints. The analytical results show that both the structural seismic responses and the internal forces in the large-span mega-truss structure produced by the variation of environmental temperature can be reduced significantly by installing the high-position isolation system. To date, the project has been completed.
机译：本文介绍了在上海国际电路（SIC）中按中心结构的合并隔离系统的工程应用。四组组合隔离系统由中心位于中心型轴承和四个周围的层压橡胶轴承组成，用于将上钢巨型桁架结构连接到其两个支撑结构，在大约30米左右，所以为了形成高位隔离系统。该项目的工程概要首先介绍。然后，描述了高位置隔离系统的特征和工作原理。其次是隔离系统的详细设计。最后，计算具有隔离系统的结构的地震反应，并与铰接接头的结构的结构进行比较。分析结果表明，通过安装高位隔离系统，可以显着降低通过环境温度变化产生的结构地震响应和内部力。迄今为止，该项目已完成。

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