Abstract

Info

Title:: Research Progress on Welding Residual Stress and Deformation in Large or Complex Steel Structure

Author(s):: GAO Zhan-yuan; GUO Yan-lin; Department of Civil Engineering, Tsinghua University

Keywords:: complex steel structure; welding; residual stress; residual deformation; numerical simulation; measurement technique

Abstract:: The research progress on welding residual stress and deformation in large or complex steel structure was overviewed.The research status of new simulation technology on welding steel structure, such as high temperature properties of materials, the adaptive mesh technique, parallel computing technique, sub structure sub model technology, and decomposition algorithm,were pointed out. The research progress on welding residual stress of thick plate, joint and integral complex structures was discussed, and the measurement methods and application situations of welding residual stress were summarized. The research directions of large or complex steel structure in the future were given. The results show that the research on welding residual stress of large or complex steel structure has made some progress, such as numerical simulation method, [JP2]component or overall structural performance, and measuring technique. [JP]With the increasing of large and complex steel structure, the study of welding residual stress and deformation will be of great significance to the design, construction and safety of the engineering structure.