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首页> 外文期刊>International journal of steel structures >Static and Seismic Experiments on the Beam-Column Joints of a Underground Cylindrical Garage Prefabricated Integrated Structure
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Static and Seismic Experiments on the Beam-Column Joints of a Underground Cylindrical Garage Prefabricated Integrated Structure

机译：地下圆柱形车库预制集成结构的梁柱接头上的静态和地震实验

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摘要

An innovative prefabricated integrated structure for a cylindrical underground garage is designed as the bracing system during the excavation phase. A new beam-column joint for this structure is proposed. Laboratory tests are implemented to obtain the capacity, hysteresis, skeleton curve and stiffness attenuation performance of the joint. The process of these tests is introduced in detail. Four full-scale specimens are analyzed in laboratory tests to study the influence of lateral loads, connection beam cross sections and column base thicknesses on the static and seismic performance of the joint. The test results show the following conclusions: (1) The lateral load only has a great influence on the stress in the connecting beam. (2) Reducing the cross section of the connection beam and thickness of the base column influence the static and seismic performance of the joints. (3) The thickness of the column base has the greatest influence on the vertical ultimate bearing capacity, skeleton curve, and stiffness attenuation of the joint, followed by the cross section of the connecting beam, and finally the lateral load.
机译：用于圆柱地下车库的创新预制集成结构设计为挖掘阶段的支撑系统。提出了一种用于该结构的新光束柱接头。实施实验室测试以获得关节的容量，滞后，骨架曲线和刚度衰减性能。详细介绍了这些测试的过程。在实验室试验中分析了四种全尺寸标本，以研究横向载荷，连接梁横截面和柱厚度对关节静态和地震性能的影响。测试结果表明以下结论：（1）横向载荷仅对连接光束中的应力产生很大影响。 （2）减少连接光束的横截面和基柱的厚度会影响关节的静态和地震性能。 （3）柱基的厚度对接头的垂直极性承载力，骨架曲线和刚度衰减具有最大的影响，其次是连接光束的横截面，最后是横向载荷。

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