| Q460高强度焊接H型钢残余应力试验研究 |
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| 引用本文： | 童乐为,赵俊,周锋,陈以一,胡晓萍.Q460高强度焊接H型钢残余应力试验研究[J].工业建筑,2012,42(1):51-55. |
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| 作者姓名： | 童乐为 赵俊 周锋 陈以一 胡晓萍 |
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| 作者单位： | 1. 同济大学土木工程防灾国家重点实验室,上海200092／同济大学建筑工程系,上海200092
2. 宝钢集团结构钢研究所,上海,201900 |
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| 基金项目： | 科技部国家重点实验室基础研究资助项目，国863计划项目 |
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| 摘 要： | 针对宝钢最新研发的高强度Q460钢材,采用钻孔应变释放法测试焊接H型钢纵向残余应力在截面上的大小及分布规律。同时,结合机械剥层的方式对纵向残余应力沿壁厚方向的分布规律进行试验考察。在试验测试结果的基础上,提出高强度Q460焊接H型钢的纵向残余应力分布的计算模型。
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| 关 键 词： | 高强度钢材 焊接H型钢 残余应力测试 钻孔应变释放法 分布图式 |
EXPERIMENTAL INVESTIGATION ON LONGITUDINAL RESIDUAL STRESS OF Q460 HIGH-STRENGTH STEEL WELDED H-SECTION MEMBERS |
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| Tong Lewei,Zhao Jun,Zhou Feng,Chen Yiyi,Hu Xiaoping.EXPERIMENTAL INVESTIGATION ON LONGITUDINAL RESIDUAL STRESS OF Q460 HIGH-STRENGTH STEEL WELDED H-SECTION MEMBERS[J].Industrial Construction,2012,42(1):51-55. |
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| Authors: | Tong Lewei Zhao Jun Zhou Feng Chen Yiyi Hu Xiaoping |
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| Affiliation: | 1.State Key Laboratory of Disaster Reduction in Civil Engineering,Tongji University,Shanghai 200092,China; 2.Department of Building Engineering,Tongji University,Shanghai 200092,China; 3.Research Institute of Structural Steel,Baosteel Group Corporation,Shanghai 201900,China) |
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| Abstract: | It was presented an experimental investigation on longitudinal residual stresses of welded H-sections fabricated from high-strength steel sheet with a nominal yield stress of 460 MPa,which was recently developed by Baosteel Group Corporation.Strain gage hole drilling method was used to measure the magnitudes and distributions of longitudinal residual stresses along the cross section.Furthermore,the measured points inside the thickness were stripped to the outer surface to measure the stresses along the thickness of the section.At last,a longitudinal residual stress pattern was proposed based on the test results obtained in this study for the Q460 welded H-sections. |
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| Keywords: | high-strength steel welded H-section residual stress testing strain gage hole drilling method distribution pattern |
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