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半刚性螺栓球节点空间网壳结构受力性能研究
Authors
曹正罡
范峰
马会环
Publication date
1 January 2011
Publisher
Editorial Department of Progress in Steel Building Structures, Tongji University
Abstract
空间结构中常用的节点多数都是介于刚接和铰接之间的一种半刚性节点。国内对用于空间结构中的半刚性节点以及半刚性节点网壳的研究目前还比较少。基于半刚性节点的试验研究,得到了螺栓球半刚性节点在弯矩荷载和压弯荷载共同作用下的弯矩-转角曲线。利用大型通用有限元分析软件ANSYS建立了用于空间半刚性网壳结构的有限元分析模型。最后,将由试验得到的节点的弯曲刚度带入半刚性凯威特单层网壳的数值模型中,考虑几何参数和节点刚度对半刚性网壳稳定性的影响,展开了大规模的弹塑性全过程分析,通过系统的参数分析,较为全面地掌握了半刚性单层网壳的稳定性能,并进一步总结得出了螺栓球半刚性节点单层球面网壳的稳定承载力公式
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Last time updated on 28/12/2024