摘要
根据网壳结构的动力稳定判别准则，采用精确的空间梁单元切线刚度矩阵形式及大转角理论，通过二个典型算例，分别考查在突加阶跃荷载、简谐荷载及三角形脉冲荷载作用下，单层网壳结构的动力稳定性能，并得出了一些主要结论。
According to the criterion of Liapanov′s stability,the large displacement stability behariour of tow well known examples subjected to dynamic loads are examined in this paper by precise tangent stiffness matrix of three dimentional beam element wich derived by using beam-column theory and exact theory of large angle of rotation. Three types of time-dependent loading cases are considered,namely,step load and sinusoidal laod of infinite duration and triangular load.Finally,some conclusions of dynamic stability of single layer reticulated structures are obtained.
出处
《哈尔滨建筑大学学报》
1997年第1期24-31,共8页
Journal of Harbin University of Civil Engineering and Architecture
