[1]杨晓东,杨明潇,王杨俊.建筑钢结构熔透对接焊缝瑕疵对焊缝剪切和拉剪强度影响的研究[J].西安建筑科技大学学报(自然科学版),2018,50(01):134-140，147.[doi:10.15986/j.1006-7930.2018.01.021]
　YANG Xiaodong,YANG Mingxiao,WANG Yangjun.Study on the influence of building steel structure butt weld fusion defects on shear and weld tensile-shear strength[J].J. Xi’an Univ. of Arch. & Tech.(Natural Science Edition),2018,50(01):134-140，147.[doi:10.15986/j.1006-7930.2018.01.021]
点击复制

建筑钢结构熔透对接焊缝瑕疵对焊缝剪切和拉剪强度影响的研究()
分享到：

西安建筑科技大学学报（自然科学版）[ISSN:1006-7930/CN:61-1295/TU]

卷:
50
期数:
2018年01期
页码:
134-140，147
栏目:
出版日期:
2018-03-15

文章信息/Info

Title:
Study on the influence of building steel structure butt weld fusion defects on shear and weld tensile-shear strength
文章编号:
1006-7930(2018)01-0134-07
作者:
杨晓东1; 杨明潇2; 王杨俊3
(1．西安建筑科技大学 材料与矿资学院,陕西 西安 710055 ;2．陕西石泉县方源建材检验检测有限公司,陕西 石泉 725200 ; 3．陕西省纺织科学研究所,陕西 西安 710038 )
Author(s):
YANG Xiaodong1;  YANG Mingxiao2;  WANG Yangjun3
(1. College of Materials and Mineral Resources, Xian University of Architecture and Technology, Xian 710055, China; 2. Shiquan County Fangyuan Building Material Inspection and Experiment Limited Company,Shiquan 725200, China; 3. Shaanxi Textile Science Research Institute, Xian 710038, China)
关键词:
瑕疵焊缝;  剪切; 拉剪; 强度变化特征
Keywords:
flaw welds;  Shear;  tensile-shear;  strength variation characteristics
分类号:
TB302.1
DOI:
10.15986/j.1006-7930.2018.01.021
文献标志码:
A
摘要:
应用测试原位焊缝剪切和拉剪强度的实验装置，研究建筑钢结构熔透对接焊缝瑕疵特征值（ε）对焊缝剪切强度（τ）和拉剪强度（R）的影响.研究受剪力作用的焊缝发现：焊缝存在瑕疵，其剪切强度低于母材的剪切强度.当焊接瑕疵位于焊缝核心区域（c类）时，对承受拉剪复合力的焊缝研究表明：ε小于0.150，随ε增加，焊缝拉剪强度几乎不变；ε在0.150～0.201间，ε增加，焊缝拉剪强度降低幅值较大；ε在0.201～0.453间，ε增加，焊缝拉剪强度降低幅值较小.当焊接瑕疵位于距焊缝受力方向较远的接近表面区域（r类）时，对承受拉剪复合力的焊缝研究表明：ε不大于0.005时，ε增加，焊缝拉剪强度降低幅值较小；ε大于0.005，ε增加，焊缝拉剪强度下降幅值巨大.H型对接构件受力形变研究发现：对接焊缝存在的瑕疵，不影响焊缝拉剪设计强度时，焊缝拉剪破坏，构件挠度大于设计允许值
Abstract:
In designing the weld shear and tensile-shear device, there are flaws in shear strength （τ） of melting butt weld, tensile-shear strength (R) and component failure state with defective equivalent rate (ε) size variation. The shear strength of the weld line decreases to the shear strength of the base metal plate under the action of shearing force and any characteristic flaw.The defect rate of less than 0.150 c equivalent, with increased rates of weld defect equivalent tensile-shear strength is almost level straight. The c class defect equivalent rate, 0.150 ～0.201, will increase the weld defect equivalent tensile-shear strength reduction sensitivity. As c class defect equivalent rate falls between 0.201～0.453, the rate of defective weld tensile shear strength reduction is not sensitive, but it still showed a downward trend. The defect equivalent rate of r is 0.005, which is the dividing point of the sensitive region of the tensile-shear strength of the weld. When bigger than this point, with the increase of the defect equivalent rate, the tensile-shear strength declines rapidly. The defects in the butt welds of H type components, if the minimum design value of the tensile-shear strength of welded joints is not affected, will be damaged by the tensile-shearing failure of the welded joints, and the deflection of the H component can meet the allowable values of the design

参考文献/References:

[1]张乐乐, 李培, 刘晨.焊接缺陷对转向架强度的影响[J].中国铁道科学,2010,31(2):67-72.

ZHANG Lele, LI Pei,LIU Chen.Influence of the weld defect on the structure strength of the bogie frame[J]. China Railway Science ,2010:31(2):67-72.

[2]刘秀丽，王燕，李美红，等.钢结构T型连接节点受力性能试验研究[J].西安建筑科技大学学报（自然科学版），2015,47(6):848-853.

LIU Xiuli, WANG Yan, LI Meihong,et al.Experimental study on the T-stub connections in steel structure[J]. J. Xi′an Univ. of Arch. & Tech .(Natural Science Edition),2015,47(6):848-853.

[3]吴艾辉, 麦勒 B G, 萨恩哲拉克斯 S. 焊接缺陷对角焊接T-型节点承载能力的影响[J].同济大学学报 自然科学版, 2008,36 (2):155-160.

WU Aihui , MELLOR B G,SYNGELLAKIS S.Effect of defects on load-carrying capability of fillet eelded T-Joints[J].Journal of Tong ji University Natural Science,2008,36 (2):155-160.

[4] 殷鹏飞,秦亮,张琳琳.带焊缝缺陷输电杆塔直缝焊管强度试验研究[J].科技展望,2016(5):75-76.

YIN Pengfei，QIN liang，ZHANG Linlin, The bearing capacity of transmission tower straight seam welded pipe with weld defect[J]. Science and Technology,2016(5):75-76.

[5]舒兴平,任森智.钢管相贯节点焊接缺陷类型及对极限强度的影响[J].建筑结构,2006, 36(1):24-27.

SHU Xingping, REN Senzhi.Research of welded defect types and influence on ultimate strength of directed welded tubular jionts[J]. Building Structure,2006, 36(1):24-27.

[6]倪真.钢结构焊接缺陷对施工质量的影响[J].钢结构,2013,28(3)：66-71.

NI Zhen.The influence of welding defects on construction quality for steels structure[J].Steel Construction, 2013,(28)3 ：66-71.

[7]朱志彬.公用热力管道缺陷成因分析及安全评定[J].工业安全与环保,2011,37(2)：34-36.

ZHU Zhibin.Cause analysis and safety assessment for defect of common thermal pipelin[J].Industrial Safety and Environmental Protection ,2011, 37(2):34-36.

[8]戴为志.建筑钢结构焊接技术发展趋势[J].电焊机，2011: 41(8):1-3.

DAI Weizhi.Development trend of the steel sturcture welding technology in the field of architecture[J]. Electric Welding Machine,2011, 41(8):1-3.

[9]刘洪伟, 陶慧琴,朱旻旼.含缺陷海洋焊接结构的安全评定[J].中国海洋平台,2012, 27(6):32-35.

LIU Hongwei,TAO Huiqin,ZHU Minmin.Safety assessment of marine welded structure with defects .china offshore platform,2012, 27(6):32-35.

[10]OTTERSBCK M J,LEITNER M, STOSCHKA M, et al.Effect of weld defects on the fatigue strengthof ultra high-strength steels[J]. Procedia Engineering, 2016 ,160:214-222.

[11]WANG Xiaopei, ZHANG Yongqiang, JU Jianbin, et al. Characteristicsof welding crack defects and failure modein[J]. Journal of Iron and Steel Research, International,2016, 23(10):1104-1110.

[12]LEE JIN KYUNG, BAE DONG SU, LEE SANG PILL, et al.Evaluation on defect in the weld of stainless steel materials usingnondestructive technique[J]. Fusion Engineering and Design, 2014, 89(10):1739-1745.

[13]FU Zhongqiu, JI Bohai, KONG Xiangming, CHEN Xiang.Grinding treatment effect on rib-to-roof weld fatigue performance of steel bridge decks[J]. Journal of Constructional Steel Research, 2017 ,129:163-170.

[14]RYAN Stevenson,ATHANASIOS Toumpis, ALEXANDER Galloway.Defect tolerance of friction stir welds in DH36 steel[J]. Materials & Design, 2015, 87(12):701-711.

[15]中华人民共和国建设部,GB50017-2003钢结构设计规范[S]. 北京：中国计划出版社，2003.

Ministry of construction of the People′s Republic of China,GB50017-2003 Design Code for Steel Structure[S]. Beijing: China Planning Press, 2003.

[16]杨晓东，雷艳春，尚建丽，等. 建筑钢结构熔透对接焊缝缺陷对焊缝抗拉强度影响的研究[J]. 西安建筑科技大学学报(自然版)，2011,43(5):730-734.

YANG Xiaodong,LEI Yanchun,SHANG Jianli,et al.Study on the influence of building steel structurebutt weld fusion defects on weld tensile bearing capacity[J]. J.Xi′an Univ. of Arch. & Tech .(Natural science Edition)，2011,43(5):730-734.

[17]杨晓东，周鹏，杨 芳，等.钢结构焊缝超声波探伤当量孔径的计算[J].无损检测，2011，33（9）：68-71.

YANG Xiaodong,ZHOU Peng,YANG Fang,et al.Caculation of defects equivalent aperture in utrasonic testing of steel structure weld.[J].Non destrctive Testing, 2011 ，33（9）：68-71.

备注/Memo

备注/Memo:
收稿日期:2016-06-06修改稿日期:2018-01-15

基金项目:西安建筑科技大学校校基础研究基金（JC1603）;陕西省教育厅自然科学专项（09JK558）

第一作者:杨晓东（1968-），男，高级工程师，主要从事钢结构无损探伤的研究工作. E-mail:yxd681125@126.com
更新日期/Last Update: 2018-03-15