To determine the distribution characteristics of the residual stress in a transmission tower welded circular tube section fabricated from 690 MPa high-strength steel (HSS), an experimental study using 30 galvanised and non-galvanised 690 MPa HSS specimens was conducted using the sectioning method and the hole-drilling method. Further, the effects of the residual stress measurement method, hot-dip galvanisation and circular diameter-to-thickness ratio on the residual stress were discussed. Finally, two distribution models for galvanised and non-galvanised specimens, and their simplified forms, were established. Comparison with a model of a welded circular tube section composed of normal-strength steel (NSS) showed that, although the maximum tensile residual stress of 690 MPa HSS is consistent with that of NSS, and although both exhibit the desired material yield strength, the maximum compressive residual stress of the HSS specimen is only 57% of that of the NSS specimen.
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September 2017
Research Article|
April 18 2016
Residual stress in high-strength-steel welded circular tube
Chao Yang;
Chao Yang
Doctoral Candidate
Department of School of Civil Engineering, Xi'an University of Architecture and Technology, Xi'an, PR China (corresponding author: cymyc@foxmail.com)
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Junfen Yang;
Junfen Yang
Associate Professor
Department of School of Civil Engineering, Xi'an University of Architecture and Technology, Xi'an, PR China
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Mingzhou Su;
Mingzhou Su
Professor
Department of School of Civil Engineering, Xi'an University of Architecture and Technology, Xi'an, PR China
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Yuan Li
Yuan Li
Assistant Engineer
Department of China Northwest Building Design Research Institutes Co., Ltd, Xi'an, PR China
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Publisher: Emerald Publishing
Received:
December 22 2015
Accepted:
March 11 2016
Online ISSN: 1751-7702
Print ISSN: 0965-0911
ICE Publishing: All rights reserved
2016
Proceedings of the Institution of Civil Engineers - Structures and Buildings (2017) 170 (9): 631–640.
Article history
Received:
December 22 2015
Accepted:
March 11 2016
Citation
Yang C, Yang J, Su M, Li Y (2017), "Residual stress in high-strength-steel welded circular tube". Proceedings of the Institution of Civil Engineers - Structures and Buildings, Vol. 170 No. 9 pp. 631–640, doi: https://doi.org/10.1680/jstbu.16.00001
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