同济大学学报（自然科学版）2017，Vol.45Issue(9)：1273-1283,11.DOI:10.11908/j.issn.0253-374x.2017.09.004
火灾下高强钢端板连接节点力学性能有限元分析
Finite Element Analysis on Behavior of High Strength Steel Endplate Connections in Fire
摘要
Abstract
In order to obtain the behavior of high strength steel endplate connections in fire,full-scale tests on 7 joints were conducted at elevated temperature 550℃.Based on the test results,a FEM analysis on high strength steel endplate connections under fire conditions was carried out by software ABAQUS.Details of the numerical modelling,such as mesh generation,element type,contact interaction,analysis process and failure criterion based on deformation,were presented.Herein the moment-rotation relationship,failure mode and stress state as well as yield line pattern of high strength endplate connections beth at ambient temperature and in fire were revealed.Besides,the validations of the numerical modelling against all representative experimental results show that good agreements exist.关键词
高强钢/端板连接节点/火灾/有限元分析/数值模拟Key words
high strength steel/endplate connections/fire/finite element analysis/numerical study分类
信息技术与安全科学引用本文复制引用
强旭红,任楚超,刘冰,姜旭,宋杰..火灾下高强钢端板连接节点力学性能有限元分析[J].同济大学学报（自然科学版）,2017,45(9):1273-1283,11.基金项目
国家重点研发计划重点专项(2017YFB0304701) （2017YFB0304701）
国家自然科学基金(51408150) （51408150）
中央高校基本科研业务费专项资金(2014KJ044) （2014KJ044）
