文章摘要
黄慎江,陈宇.基于构件拆除法的不规则预压装配式框架连续倒塌分析[J].安徽建筑大学学报,2022,30(6):1-7
基于构件拆除法的不规则预压装配式框架连续倒塌分析
Progressive Collapse Analysis of Irregular Pre-pressed Frame Structure Based on Column Removal Method
  
DOI:
中文关键词: 不规则框架  构件拆除法  连续性倒塌  预压装配式结构  ABAQUS仿真分析
英文关键词: irregular frame  component removal method  progressive collapse  prepressed frame structure  ABAQUS simulation analysis
基金项目:国家自然科学青年科学基金项目(JZ2016GJQN0921);安徽省自然科学基金项目(JZ2015AKZR0029)
作者单位
黄慎江 合肥工业大学 土木与水利工程学院安徽 合肥 230009 
陈宇 合肥工业大学 土木与水利工程学院安徽 合肥 230009 
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中文摘要:
      文章通过ABAQUS有限元模拟软件建立了L形平面不规则预压装配式PC框架,设置多种不同工况,研究了拆除各个位置承重柱后该框架剩余结构的抗连续倒塌机理。研究表明:预压装配式结构可提高结构整体的最大抗力;预应力钢筋的配置可提高结构的抗连续倒塌能力,并在悬链线阶段提高效果明显;柱失效位置对结构抗连续倒塌有着重大的影响,转角柱的结构抗连续倒塌性能介于内柱与长边中柱之间,其破坏位置越低、破坏时间越早,破坏范围越大。
英文摘要:
      The article uses ABAQUS finite element simulation software to establish an L-shaped plane irregularly pre-pressed assembled PC frame. Setting a variety of working conditions, the mechanism of structural resistance against progressive collapse of the remaining frame structure was studied when removing different load-bearing columns. The results show that the pre-pressed assembly structure can increase the maximum resistance of the structure; the configuration of prestressed steel bars can improve the structural resistance against progressive collapse, and the effect is better in the catenary stage. The failure position of the column has a significant impact on the structural resistance against progressive collapse, and the resistance of the corner column is between the inner column and the long-side center column. The lower the failure position and the earlier the failure time, the larger the failure range.
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