摘要
张拉整体平板结构由张拉整体单元按一定规则集成,其组成单元多为张拉整体三棱柱或四棱柱单元。利用张拉整体三棱柱左、右旋单元不同受力行为特点,采用节点直接相连的方式构造了一种新型三棱柱张拉整体平板结构。介绍了其拓扑构成,并通过找形、找力及荷载态分析三个步骤研究了单元及平板的结构性能,总结出该平板结构的设计原则。通过与普通网架的对比,显示出新型平板结构较好的整体刚度,具有工程应用的可行性。
Tensegrity plate is consisted of the tensegrity units.The majority unit is tri-prism units or four-prism units.An exploring study on a new type of tensegrity plane structure was presented.It was made up of left-handed tri-prism units and right-handed ones in a node-node connecting way based on the different performances of these two types of units.The topology of this new structure was first investigated.Then the structural behavior of both units and the plate structure were investigated by form-finding,force-finding and load analysis.The design rules of the plate structure were summarized.The technical index of the new structure and the space lattice structure was finally compared.The result proves this proposed new structure has great stiffness and can be applied in the real project.
出处
《建筑结构》
CSCD
北大核心
2011年第3期24-27,77,共5页
Building Structure
基金
国家自然科学基金资助项目(50708092)
关键词
张拉整体
三棱柱单元
组合单元
平板结构
几何拓扑
tensegrity
tri-prism unit
assembled unit
plate structure
geometric topology
