杆件失效时张拉整体结构的敏感性分析

张拉整体结构含有大量的杆件,具有高度的不确定性。然而,大量杆件对结构整体性是至关重要的,任何杆件的破坏都能严重降低结构强度。当这些杆件突然破坏时,其承受的荷载动态地传给整个结构,导致更严重的破坏。考虑几何和材料非线性,对杆件逐渐及突然破坏时的张拉整体结构的敏感性进行数值研究,参数还包括:自应力水平、支柱长细比及结构阻尼比。本研究结果给这种系统的设计提供了建议。

Sensitivity Analysis of Tensegrity Systems Due to Member Loss

Tensegrity systems typically contain a large number of members,and possess a high degree of statically indeterminacy.However,a number of members are critical to system integrity and serious strength reductions can be produced by loss of any of them.Furthermore,when these members are lost suddenly,their forces are shed in a dynamic manner into the structure,causing more severe damage.This paper presents a numerical study on the sensitivity of tensegrity systems to both gradual and sudden member losses,taking...