摘要
论文首先采用壳单元Shell163建立了单层柱面网壳模型,同时利用壳单元模拟了焊接空心球节点,并通过计算验证了模拟方法的合理性。然后,通过调节空心球节点的厚度,考察了节点刚度变化对单层柱面网壳地震响应的影响,分析结果表明,在强震作用下节点刚度变化对网壳节点响应与杆件内力的影响均较大,建议在进行此类结构的动力分析时考虑节点刚度的影响。
Shell element shell 163 is used to build the single-layer cylindrical reticulated shell with real dimension welded spherical hollow joints. The load-carrying capacity of the shell element joint is tested, and the results fulfill the requirement. Then, joint stiffness is changed by changing joint thickness. The influence of joint stiffness on seismic response and tube internal force is big enough to be involved in. Consequently, this influence is recommended to be considered in the dynamic analysis of such type structure.
出处
《世界地震工程》
CSCD
北大核心
2011年第3期47-52,共6页
World Earthquake Engineering
基金
国家自然科学基金重大研究计划项目(90715034)
国家自然科学基金项目(51078010)
北京市自然科学基金项目(8112005)
关键词
节点刚度
焊接空心球
壳单元
单层柱面网壳
地震响应
joint stiffness
welded hollow spherical joint
shell element
single-layer reticulated cylindrical shell
seismic response
