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Supervised by Ministry of Industry and Information Technology of The People's Republic of China Sponsored by Harbin Institute of Technology Editor-in-chief Yu Zhou ISSNISSN 1005-9113 CNCN 23-1378/T

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Related citation:YANG Xiu-ying,ZHAO Jin-cheng.Experimental study on stress-strain-temperature models for structural steel[J].Journal of Harbin Institute Of Technology(New Series),2011,18(1):6-10.DOI:10.11916/j.issn.1005-9113.2011.01.002.
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Experimental study on stress-strain-temperature models for structural steel
Author NameAffiliation
YANG Xiu-ying Dept.of Civil Engineering,Shanghai Jiaotong University,Shanghai 200240,China
School of Architecture and Civil Engineering,Liaocheng University,Liaocheng 252059,China 
ZHAO Jin-cheng Dept.of Civil Engineering,Shanghai Jiaotong University,Shanghai 200240,China 
Abstract:
For the research on steel structure in fire,it is very important to determine the properties of structural steel at elevated temperature.Up to now,the high-temperature properties of material is believed to be related to only temperature state,which is not precise enough to simulate the behavior of steel structures under different combinations of heating,cooling,loading,and unloading.To analyze the influence of the temperature-load history on the steel properties,a series of tests were carried out under different temperature-load paths about steel Q235,which is widely used in steel structures in China.In this paper,the method to set the temperature-load paths was introduced;the variety regulation of steel properties changing with temperature was analyzed under different paths;according to experimental results,the formulas of elastic modulus and yield strength at elevated temperature were fitted,and the stress-strain-temperature 3D relationships of structural steel under different paths were presented.
Key words:  structure steel  high-temperature material test  temperature-load history  stress-strain-temperature relationship
DOI：10.11916/j.issn.1005-9113.2011.01.002
Clc Number:TG142.1
Fund:

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