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为什么要计算结构的位移?
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为什么要计算结构的位移?
时间:2022-01-01 13:08
关键词:
国家开放大学(建筑力学)
CMS专题
专科
建筑施工与管理
答案解析
结构位移计算的目的有两个。一个目的是验算结构的刚度。在结构设计中,除了应该满足结构的强度要求外,还应该满足结构的刚度要求,即结构的变形不得超过规范规定的容许值(如屋盖和楼盖梁的挠度容许值为梁跨度的1/200~1/400,而吊车梁的挠度容许值规定为梁跨度的1/600)。另一个目的是为超静定结构的内力计算做准备。因为在超静定结构计算中,不仅要考虑结构的平衡条件,还必须满足结构的变形协调条件。
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