摘要
北京冬奥会延庆赛区玉渡变电站是国内第一座"窑洞式外观"大型变电站结构,也是有文献记载的国内第一座明挖施工的窑洞式工业建筑结构。结构三侧临山一侧临空,且位于滑雪场雪道正下方,既实现了建筑功能,又实现安全可靠、技术先进、节约环保、节地节资的目标。但窑洞式外观的结构具有显著不同于地上结构或地下结构的力学特性,结合玉渡变电站对窑洞式外观结构的力学特性进行分析研究。首先对本体结构与挡土墙的关系进行了方案对比,并选定了结构与挡土墙一体化的设计方案;由于结构三边临土一面临空,其受力特性较为复杂,对结构与挡土墙一体的关键问题进行了研究分析,采用了Midas Civil进行了三维非线性时程分析结构的抗震特性;分析了非对称的单边土压力导致结构存在的抗滑移稳定及抗倾覆稳定问题,解决了此种结构类型的滑移稳定和倾覆稳定问题。在解决实际问题的同时,为今后同类型结构提供借鉴。
The Yudu substation for Yanqing competition district of Beijing Winter Olympic Games is the first building structure of the "cave style"substation in China,and it is also the first cave type industrial building structure constructed by open cut method in China. The three sides of the structure are close to the mountain and are located directly below the ski slopes. It not only achieves the building function,but also achieves the goals of safety,reliability,advanced technology,environmental protection and land and capital saving. However,the structure of the cave-like appearance has a mechanical property that is significantly different from that of the above-ground structure or underground structure. This paper analyzes the mechanical properties of the cave-like structure with the Yudu substation. In this paper,the relationship between the open cut structure and the retaining wall is firstly compared,and the integrated structure and retaining wall are selected. Because the three sides of the structure face the mountain and one side of the structure face the air,the mechanical properties are more complicated. The key problems of the integrated structure and retaining wall are analyzed. The seismic behavior of the three-dimensional nonlinear time-history analysis structure is carried out by Midas Civil. The anti-sliding stability and anti-overturning stability of the structure caused by the asymmetric singlesided earth pressure are analyzed. While solving practical problems,it will provide reference for the same type of structure in the future.
作者
张晓晓
吴培红
陈凯
邓华
Zhang Xiaoxiao;Wu Peihong;Chen Kai;Deng Hua(Beijing Electric Power Economic and Technological Research Institute,Beijing 100055,China)
出处
《山西建筑》
2020年第7期47-50,共4页
Shanxi Architecture
基金
北京市科委项目(Z181106009018003)。
关键词
窑洞
冬奥会
挡土墙
抗震
cave type
winter olympic games
retaining wall
earthquake resistance
作者简介
张晓晓(1987-),女,硕士,工程师。
