不同构造形式加强型节点断裂特性分析  

Fracture performance study of different structural forms to reinforced nodes

作　　者：张凤梅[1] 王燕[1] 刘芸[1] 

机构地区：[1]青岛理工大学土木工程学院,青岛266033

出　　处：《青岛理工大学学报》2013年第2期5-13,30,共10页Journal of Qingdao University of Technology

基　　金：国家自然科学基金项目(51078194);教育部高等学校博士学科点专项基金资助项目(20103721110003)

摘　　要：加强型节点是一种基于塑性铰外移的梁柱连接形式,具有良好的延性性能和较强的承载力,为系统分析和对比不同构造形式加强型节点的断裂性能,采用有限元分析软件ANSYS分别对5种加强型节点以及普通节点进行了有限元数值模拟,对影响节点受力性能的关键部位做了分析和探讨,利用断裂特性指数对节点发生脆性断裂的机理进行了研究.The reinforced node with excellent ductility is a new beam-column connection that is based on the plastic hinge shifting method. In order to compare the fracture behavior of different structural forms of reinforced nodes systematically and comprehensively, this paper takes the finite element software ANSYS to make finite element simulation respectively for five reinforced nodes and an ordinary node, analyzes and discusses the mechanical behavior of key parts of joints that may cause cracking,and studies the mechanism of brittle fracture by fracture characteristics index.

关 键 词：断裂性能 加强型节点 有限元 塑性铰外移 

分 类 号：TU391[建筑科学—结构工程]