一种四面体单元球形端板式节点的受力性能分析
Mechanical behavior analysis of a kind of end-plate-sphere joint of six-bar tetrahedral units
郑晓清 1董石麟 2陈伟刚 3王宇轩1
作者信息
- 1. 浙江大学建筑设计研究院有限公司,浙江杭州 310028
- 2. 浙江大学空间结构研究中心,浙江杭州 310058
- 3. 浙江东南网架股份有限公司,浙江杭州 311200
- 折叠
摘要
六杆四面体单元组成的网壳是一种结构构型简单、受力性能优越、兼具单层网壳和双层网壳受力特点的结构形式.这种网壳具有便于工业化加工制作和装配化施工的显著优点.目前,针对六杆四面体单元所组成的各种形体的网壳已展开了较为系统的结构体系研究,但对节点的研究还相对较少.针对六杆四面体单元组成的球面网壳结构提出了一种满足装配化要求的刚性连接的球形端板式节点,并采用通用有限元分析软件进行了考虑接触效应的非线性有限元分析.结果表明:在轴拉和压弯荷载作用下,该节点受力性能良好,可满足实际工程设计的需要.
Abstract
The six-bar tetrahedral lattice shell features simple configuration and excellent mechanical behavior,and can perform like a double-layer and single layer latticed shell mechanical performance.This kind of latticed shell is suitable for industrialized fabrication and assembly construction.At present,systematic research has been carried out on latticed shells with various shapes composed of six-bar tetrahedral units,but the research on the joint is relatively less.An end-plate-sphere joint which could meet the needs of prefabricated construction for six-bar tetrahedral units is presented.Finite element analysis with modeling nonlinear contact interaction was carried out by using ABAQUS.The results show that the joint has good mechanical performance under axial tension and combined compression-bending load,which can meet the requirement of practical engineering design.
关键词
六杆四面体单元/球形端板式节点/刚性连接/数值分析Key words
six-bar tetrahedral unit/end-plate-sphere joint/rigid connection/numerical analysis引用本文复制引用
基金项目
浙江大学平衡建筑研究中心科研项目()
住房和城乡建设部项目(K20200709)
出版年
2024
NETL
NSTL
万方数据