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随着我国现代化建设的飞速发展,各种超大的大型市政和民用建筑迅速涌现。《给水排水工程构筑物结构设计规范》给出对于在土基中的现浇钢筋混凝土水池伸缩缝设置最大间距为30m,超出该长度的均为超大结构。本文以北京一超大圆形半埋式沉淀池为研究对象,该水池周长为150m,且未设伸缩缝。目前,对于未设伸缩缝的超大水池结构的温度应力尚没有系统的研究,因此,本文通过建立该圆形超大水池的有限元模型,采用有限元分析软件SAP2000,对其在不同温度作用方式下的力学性能进行研究,给在温度作用下的结构设计提供了一定的参考。
With the rapid development of our country’s modernization, all kinds of large-scale large-scale municipal administrations and civil buildings are emerging rapidly. “Water supply and drainage engineering structure design specifications” given for the foundation of the cast-in-site reinforced concrete pool expansion joints set the maximum spacing of 30m, beyond the length of the large structure. In this paper, a large semi-circular sedimentation basin in Beijing as the research object, the pond circumference of 150m, and no expansion joints. At present, there is no systematic research on the thermal stress of the large pool structure without expansion joints. Therefore, by establishing the finite element model of this large circular pool and using the finite element analysis software SAP2000, The mechanical properties of the study, to the structural design of the role of temperature provides a reference.