采用三维有限元模型的高耸结构连续倒塌分析

利用通用有限元软件ABAQUS,建立一栋20层建筑的三维有限元模型,并进行连续倒塌分析。用壳单元和梁单元模拟整体结构,考虑材料非线性和几何非线性。详细说明了建模过程,计算结果与试验数据很吻合。利用此模型,详细评估不同结构不同柱突然失效时的性能。此模型准确反映了柱突然失效时结构的整体性能,为连续倒塌研究提供了辅助设计指导。

Progressive Collapse Analysis of High-Rise Building with 3-D Finite Element Modeling Method

Using the general purpose finite element package ABAQUS,a 3-D finite element model representing 20storey buildings were first built in this paper to perform the progressive collapse analysis.Shell elements and beam elements were used to simulate the whole building incorporating non-linear material characteristics and non-linear geometric behavior.The modeling techniques were described in detail.Numerical results are compared with the experimental data and good agreement is obtained.Using this model,the stru...