大型或复杂钢结构焊接残余应力与变形研究进展-《建筑科学与工程学报》

文章信息/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

摘要:: 综述了大型或复杂钢结构焊接残余应力与变形的研究进展，给出了材料高温性能、网格自适应技术、并行计算技术、子结构子模型技术及分解算法等焊接钢结构模拟新技术的研究现状，讨论了厚板、节点、整体复杂结构焊接残余应力的研究进展，总结了焊接残余应力的测量方法及应用情况，给出了大型或复杂结构今后的研究方向。结果表明：大型或复杂结构焊接残余应力在数值模拟方法、构件或整体结构性能、测量技术等方面都取得了一定的进展，随着大型复杂钢结构日益增多，研究焊接残余应力和变形问题将对工程结构的设计、施工及结构安全有十分重要的意义。

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.