Paper Title:
A Research on Prediction and Control of Welding Distortion and Residual Stress for an All-Welded Steel Bridge

A typical case of integral all-welded panel joints on Shanghai Minpu Second Bridge is discussed in this paper. The prediction of welding residual stresses at joints is achieved by thermal elasto finite element analysis, and the research reveals that a proper scheme of multi-layer welding craft will reduce welding distortions and residual stresses through mutual offset. The welding distortions at upper and lower chord joints (Type I) and those of the overall structural model are predicted with the distribution of residual stresses obtained. The research aims to provide a theoretical basis for the control of welding distortion, the optimization of welding craft and the constitution of optimal assembly welding craft.

Advanced Materials Research (Volumes 446-449)
Chapter 2: Bridge Engineering
Edited by
Xiuli Du, Jianjun Zheng, Weiming Yan, Yue Li and Jianwei Zhang
X. F. Yan, L. Shi, L. Zhou, "A Research on Prediction and Control of Welding Distortion and Residual Stress for an All-Welded Steel Bridge", Advanced Materials Research, Vols. 446-449, pp. 1076-1084, 2012
Online since
January 2012
Authors: Hong Li, Hui Long Ren
Abstract:The long-term goal of prediction of welding distortions in ship sections is to specify an optimal welding procedure to minimize distortions...
Authors: F. Soul, M. Ateeg, S. Beshay, M. Senfier
Abstract:Many techniques were developed to control residual stress and distortion during welding process to minimizes their magnitude in the affected...
Authors: Yuan Wei Liu
Abstract:The key problems in 2D FEM simulation such as the establishment of finite element model, the initial stress loading, the distortion appraisal...
Authors: Zhi Bo Dong, Yan Hong Wei, Wen Jian Zheng, Guang Xu Hu, Rui Ma
Abstract:TA15 airplane wall panels are used widely in aircraft manufacture, which consist of some reinforced ribs and a motherboard. Therefore,...
Authors: Qing Yang, Shu Jun Xie, Hai Tao Gao
Chapter 6: Welding & Joining
Abstract:To simulate the welding and heat treatment process of the Q345 plate with V-groove, Finite element software ANSYS was employed. A reasonable...