弦杆为折杆T型圆钢管节点抗弯刚度试验与有限元分析  

Experimental Research and FEA on Bending Rigidity of Unstiffened CHS T-Joints with Fold Chord

作　　者：陈誉[1] 彭兴黔[1] 陈荣淋[1] 

机构地区：[1]华侨大学土木工程学院,福建泉州362021

出　　处：《南昌大学学报（工科版）》2007年第3期283-286,290,共5页Journal of Nanchang University(Engineering & Technology)

基　　金：福建省科技重大专项资助项目(2005YZ1016);福建省自然科学基金计划资助项目(E0510022);华侨大学科研基金资助项目(07BS201)

摘　　要：以T型原钢管节点抗弯刚度试验研究为基础,对节点的非线性有限元建模方法进行了校验.揭示了影响节点抗弯刚度的主要参数以及这些参数与抗弯刚度的关系.建议改变传统的把节点简化为刚接或铰接的思想,在节点区域施加弹簧单元,这种方法应该更接近于实际节点的受力情况.The importance of the research on bending rigidity of unstiffened CHS T-joints with fold chord and the present research achievements at home and abroad are introduced. Finite element model simulating the bending rigidity of experiment on unstiffened CHS T-joints is validated. The influence of geometric parameters on the bending rigidity is investigated and explained graphically. The paper suggests that the traditional idea of simplifying the node to rigid joint or hinge joint should be changed is more close to the practical statu of node. and spring element should be exersted in the node area, which is more close to the practical statu of node.

关 键 词：T型圆钢管相贯节点 折杆 抗弯刚度 有限元 

分 类 号：TU758.11[建筑科学—建筑技术科学] TQ336.1[化学工程—橡胶工业]