Crack penetrating through bridge deck in the joint of longitudinal rib and deck plate can only be repaired by re-welding, however, it will be recurred on account of high residual stress deriving from re-weld process. In this paper, the cracks through the bridge steel deck plate at the joint of longitudinal rib and deck plate are selected as research object, then the residual stress is calculated by substructure method and the influences of welding procedure are considered meanwhile. The results show that, in the same conditions, the numeric value and distribution range for RDF cracks are higher than RD cracks and symmetry welding from middle to both ends is useful to decrease the longitudinal tensile stress. The relationship between the longitudinal residual stress and the re-welding length or the groove angle at welding toes is congruous with the power function relation.
QIAN Ji
,
JIANG Yong
,
WU Chong
. Analysis on welding residual stress produced by repairing cracks in the joint of longitudinal rib and deck plate[J]. Transactions of The China Welding Institution, 2018
, 39(10)
: 25
-29,47
.
DOI: 10.12073/j.hjxb.2018390243
[1] Wolchuk R. Lessons from weld cracks in orthotropic decks on three European bridges[J]. Journal of Structural Engineering, 1990, 116(1):75-84.
[2] Kolstein M H, Wardenier J A. New type of fatigue failures in steel orthotropic bridge decks[C]//Proceedings of Fifth Pacific Structural Steel Conference, Seoul, Korea, 1998:483–488
[3] Gregory E N, Slater G, Woodley C C. Welded repair of cracks in steel bridge members[R]. Washington, D.C:Nchrp Report, 1989.
[4] Ghahremani K, Sadhu A, Walbridge S. Fatigue testing and structural health monitoring of retrofitted web stiffeners on steel highway bridges[J]. Transportation Research Record Journal of the Transportation Research Board, 2013, 2360:27-35.
[5] 赵秋, 吴冲. U肋加劲板焊接残余应力数值模拟分析[J]. 工程力学, 2012, 29(8):262-268 Zhao Qiu, Wu Chong. Numerical analysis of welding residual stress of U-rib stiffened plate[J]. Engineering Mechanics, 2012, 29(8):262-268
[6] 蒋永, 吴冲, 钱骥. 钢桥面板重焊修复后残余应力数值分析[J]. 桥梁建设, 2016, 46(5):100-104 Jiang Yong, Wu Chong, Qian Ji. Numerical analysis of residual stress of rewelded and repaired steel bridge deck plate[J]. Bridge Construction, 2016, 46(5):100-104
[7] Kainuma S, Jeong Y S, Yang M Y. Welding residual stress in roots between deck plate and U-rib in orthotropic steel decks[J]. Measurement, 2016(92):475-482.
[8] Garza C, Shterenlikht A, Pavier M J. Closed-form solutions of hole distortion for use in deep-hole drilling measurements of residual stress in orthotropic plates[J]. Journal of Strain Analysis for Engineering Design, 2017, 52(2):77-82.
[9] Li L H, Chen F R. Microstructure and mechanical properties of dissimilar steel plate resistance plug welding joints[J]. China Welding, 2017, 26(2):43-51
[10] 王若林, 李根森. 扁平钢箱梁U肋焊接残余应力数值分析[J]. 土木建筑与环境工程, 2015, 37(1):104-111 Wang Ruolin, Li Gensen. Numerical simulation for the residual stress of U-rib welding onto the flat steel box girder[J]. Journal of Civil, Architectural & Environmental Engineering, 2015, 37(1):104-111
[11] 康玲. 正交异性钢桥面板纵、横肋焊接残余应力数值模拟[D]. 成都:西南交通大学, 2015.
[12] European Committee for Standardization, DAFT ENV 1993, Eurocode 3:Design of Steel Structures[S]. 1995.
[13] Hong J K, Tsai C L, Dong P. Assessment of numerical procedures for residual stress analysis of multipass welds[J]. Welding Journal, 1998, 77(9):372-382.
[14] 赵秋. U肋加劲板焊接残余应力与受压稳定计算方法研究[D]. 上海:同济大学, 2010
