ANALYTICAL SIMULATION UTILIZING COLLABORATIVE STRUCTURAL ANALYSIS SYSTEM
ANALYTICAL SIMULATION UTILIZING COLLABORATIVE STRUCTURAL ANALYSIS SYSTEM
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发表时间：
2008
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通讯作者：
M. Tada;H. Tamai;K. Ohgami;S. Kuwahara;A. Horimoto
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作者：
M. Tada;H. Tamai;K. Ohgami;S. Kuwahara;A. Horimoto
利用E-Defense振动台设备进行了一栋4层钢结构建筑倒塌的全尺寸模拟试验。试件由宽翼缘截面梁、矩形空心截面柱、带桥面板的混凝土板和带地脚螺栓的柱脚组成。试件的倒塌表现为底层柱子局部屈曲引起的性能劣化。基于协同结构分析(CSA)系统对试件进行了分析模拟。CSA系统能够利用现有单个结构分析程序的有益功能执行高度复杂的结构分析。几个程序被用来模拟整个框架的各种组件。COMPO程序用于分析由钢梁和混凝土板组成的组合梁。它可以考虑正弯曲的复合作用，以及负弯曲的混凝土板的裂缝张开。它可以模拟组合梁的复杂循环行为。通用程序MARC是用来分析矩形空心柱的。模型采用壳单元，考虑了轴力和弯矩作用下的局部屈曲。它可以模拟退化的后屈曲行为。程序NETLYS用作宿主程序。它处理的是整体运动方程，其中涉及到所有子结构的数值信息。并将分析结果与振动台试验结果进行了比较。将讨论结构组件对试件整体坍塌性能的影响。
A full-scale experiment to simulate collapse of a 4-story steel building was conducted using E-Defense shake table facility. The specimen consists of beams of wide-flange sections, columns of rectangular hollow sections, concrete slabs with deck plates, and column bases with anchor bolts. The collapsing of the specimen was characterized by deteriorating behavior caused by local buckling of column at the first story. This paper deals with the analytical simulation of the specimen based on the collaborative structural analysis (CSA) system. The CSA system is capable of performing highly sophisticated structural analyses utilizing the beneficial features of existing individual structural analysis programs. Several programs are being used to simulate various components of the whole frame. The program, COMPO, is used for analyzing composite beams that consist of steel beam and concrete slab. It can consider the composite action in plus bending, and the crack-opening of concrete slab in minus bending. It can simulate the complex cyclic behavior of composite beams. The general-purpose program, MARC, is used for analyzing columns of rectangular hollow sections. Shell elements are used for modeling to consider the local buckling due to axial force and bending moment. It can simulate the deteriorating post-buckling behavior. The program, NETLYS, is used as a host program. It deals with the global equation of motion, to which numerical information of all sub-structures is involved. The analytical results are compared with test results of shake table. The effects of structural components to overall collapsing behavior of the specimen will be discussed.