张拉整体三棱柱单元受力全过程内力变化分析  

Analysis of internal force changes in full loading process of integral triangular prism unit of tensegrity

作　　者：李文[1] 蒋友宝[1] 张亚海[1] 蒲德龙[1] 

机构地区：[1]长沙理工大学土木与建筑学院,湖南长沙410004

出　　处：《工程建设》2010年第6期10-12,16,共4页Engineering Construction

基　　金：湖南省大学生研究性学习与创新性实验计划项目(103)

摘　　要：综合考虑压杆失稳和索破断两种失效模式,提出了张拉整体三棱柱单元极限荷载的近似求解方法。然后分析了不同预应力和索杆刚度比值等参数下内力非线性变化的特性。根据这些成果,制作了一简单的张拉整体三棱柱单元模型,为相关工程应用提供参考。An approach to obtain the ultimate load was proposed for triangular prism unit of tensegrity with consideration of two failure modes：buckling of struts and fracture of cables.Some non-linear characteristics of internal force changes under different ratios of pre-stress to cable strut stiffness.Based on these results,a simple tensile triangular prism unit was fabricated,and some references were provided for corresponding engineering applications.

关 键 词：张拉整体 三棱柱单元 内力 失效模式 参数分析 

分 类 号：TU391[建筑科学—结构工程]