Experimental investigation on residual stress of steel welded circular tubes

被引：0
作者：
机构：
[1] Key Laboratory of Civil Engineering Safety and Durability of China Ministry of Education, Tsinghua University, Beijing
[2] China Southwest Architectural Design and Research Institute Co., Ltd, Chengdu
[3] Beijing Institute of Architectural Design Co., Ltd, Beijing
[4] School of Civil Engineering, Lanzhou University of Technology, Lanzhou
来源：
Shi, Gang | 1600年 / Science Press卷 / 35期
关键词：
High strength steel; Residual stress; Static test; Welded circular tube;
D O I：
10.14006/j.jzjgxb.2014.11.016
中图分类号：
学科分类号：
摘要：
In order to investigate the residual stress of steel welded circular tubes, an experimental program including nine different sections, different strength and different processing technology specimens were conducted in which sectioning method was employed. Based on large quantities of original test data, the residual stress distribution and the magnitudes of these different specimens were obtained, and the effects of the diameter-to-thickness ratio, the steel strength and hot galvanizing as well as the human error were analyzed. It is indicated that the residual stress of high strength steel welded tubes is flatter than the ones of ordinary steel tubes, and galvanizing decreases the maximum residual tensile stress. The human error of measuring is quite small. Finally, the residual stress distribution model for steel welded circular tube sections was established which had a good agreement with the test results. Meanwhile, the finite element verification was carried out which provided reference for the future finite element analysis of overall buckling. ©, 2014, Science Press. All right reserved.
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页码：125 / 133
页数：8
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