Study on Mechanical Property Test and Equivalent Constitutive Model of Corroded Steel

被引：0
|
作者：
Zheng S. [1 ,2 ]
Tian Z. [1 ]
Yang S. [1 ]
Mu C. [1 ]
Ming M. [1 ,3 ]
机构：
[1] School of Civil Engineering, Xi’an University of Architecture & Technology, Xi’an
[2] Key Lab of Structural Engineering and Earthquake Resistance, Ministry of Education（XAUAT）, Xi’an
[3] Northwest Electric Power Design Institute Co. ，Ltd., China Power Engineering Consulting Group, Xi’an
来源：
Hunan Daxue Xuebao/Journal of Hunan University Natural Sciences | 2024年 / 51卷 / 03期
基金：
中国国家自然科学基金; 国家重点研发计划;
关键词：
constitutive relation; mechanical property; steel structure; tarnishing;
D O I：
10.16339/j.cnki.hdxbzkb.2024033
中图分类号：
学科分类号：
摘要：
To accurately describe the constitutive relationship of the corroded steel under cyclic loading，the mechanical properties and degradation rules of the corroded steel were obtained through the monostatic tensile and cyclic loading tests on 16 groups of corroded Q355 steel specimens subjected to artificially accelerated corrosion. The influence of corrosion on the hysteretic properties of steel specimens was analyzed，and a cyclic constitutive model of corroded steel was established based on Giuffre-Menegotto-Pinto（GMP）model. The results show that the yield strength，ultimate strength and corresponding yield strain，ultimate strain and other mechanical properties of steel show a linear degradation trend with the increase of corrosion degree；corrosion weakens the energy consumption capacity of steel，making it difficult to ensure the safety of the structure under reciprocating loads；the cyclic constitutive model of corroded steel is in good agreement with the test results，which can provide support for the seismic performance evaluation of steel members and structures in corrosive environments. © 2024 Hunan University. All rights reserved.
引用
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页码：111 / 120
页数：9
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