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谭政,钟炜辉*,李超范.钢框架栓焊节点组件模型抗连续倒塌研究[J].实验力学,2020,35(1):135~143
钢框架栓焊节点组件模型抗连续倒塌研究
On the resistance to progressive collapse of steel frame with bolted welding joint assembly model
投稿时间:2018-05-16  修订日期:2018-08-15
DOI:10.7520/1001-4888-18-116
中文关键词:  钢框架  连续倒塌  组件法  栓焊节点
英文关键词:steel frame  progressive collapse  component method  welded flange-bolted connection
基金项目:国家自然科学基金面上项目(51678476);陕西省重点研发计划项目(2018ZDXM-SF-097)
作者单位
谭政 西安建筑科技大学土木工程学院 陕西西安 710055 
钟炜辉* 西安建筑科技大学土木工程学院 陕西西安 710055 
李超范 西安建筑科技大学土木工程学院 陕西西安 710055 
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中文摘要:
      钢结构的抗连续倒塌能力一般取决于其抵抗局部损伤的能力,但这种能力往往受许多因素影响,目前还没有一个稳定和可靠的判定方法。基于组件法建模原理,将栓焊节点离散为多个对受力有贡献的基本组件,然后通过集成组件来模拟栓焊节点的受力特性,并依此构建了栓焊节点梁柱子结构的连续倒塌数值分析模型。通过与试验结果比较,验证了模型的有效性和合理性。由此表明组件法在连续倒塌研究中具有重要的理论意义和应用价值。
英文摘要:
      The resistance ability to progressive collapse of steel structure generally depends on its resistance ability to local damage, however, this ability is often affected by many factors. At present, there is no stable and reliable judge method. Based on modeling principle by component method, the joints (namely bolt welded joints) are discretized into a number of basic components that contribute to stress. Then, the mechanical characteristics of bolt welded joints are simulated by integrated components, and a numerical model of progressive collapse of beam and column substructure of bolt welded joints was constructed. The validity and rationality of the model are verified by comparing with the experimental results. It indicates that the component method has great theoretical significance and is applicable value in the study of progressive collapse.
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