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分布与集中荷载共同作用下具有初始位移压杆的承载力
BEARING CAPACITY OF THE COMPRESSION BAR WITH INITIAL DEFLECTION UNDER AXIAL UNIFORMLY DISTRIBUTED LOADS AND CONCENTRATED LOAD
【Author】 MA Xiao, DUAN Shu-jin(Research Institute of Structural Engineering, Shijiazhuang Railway Institute, Shijiazhuang 050043, China)
【机构】 石家庄铁道学院土木工程分院结构工程研究所;
【摘要】 对于均布轴向荷载与集中荷载共同作用下的压杆,考虑初始几何位移的影响,根据边缘纤维屈服准则得到构件的理论最大荷载。对于一般工程构件,此承载力值低于根据线性稳定理论得到的临界荷载,可以作为结构安全设计的依据。
【Abstract】 A compression bar bearing axial uniformly distributed load and concentrated load is studied. Considering the initial geometric deflection, the theoretical ultimate load is obtained based on the yielding criterion of the cross-sectional edge stresses. The obtained bearing capacity is lower than the critical load by the linear stability theory, so that the present work can function as the base to the structural safety designs for the engineering structures in practice.
【Key words】 compression bar; axial uniformly distributed load; concentrated load; initial geometric deflection; yielding criterion of the cross-sectional edge stresses; bearing capacity;
- 【会议录名称】 第14届全国结构工程学术会议论文集(第一册)
- 【会议名称】第14届全国结构工程学术会议
- 【会议时间】2005
- 【会议地点】中国烟台
- 【分类号】TU391
- 【主办单位】中国力学学会结构工程专业委员会、烟台大学土木工程学院、中国力学学会《工程力学》编委会、清华大学土木工程系