COMPARISON OF MONOTONIC AND CYCLIC PERFORMANCES OF STRUCTURAL STEEL Q345 AND Q460

Dai Guoxin; Wang Fei; Shi Gang; Wang Yuanqing; Shi Yongjiu

doi:10.13204/j.gyjz201201003

Volume 42 Issue 1

Dec. 2014

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Dai Guoxin, Wang Fei, Shi Gang, Wang Yuanqing, Shi Yongjiu. COMPARISON OF MONOTONIC AND CYCLIC PERFORMANCES OF STRUCTURAL STEEL Q345 AND Q460[J]. INDUSTRIAL CONSTRUCTION, 2012, 42(1): 13-17,55. doi: 10.13204/j.gyjz201201003

Citation:

Dai Guoxin, Wang Fei, Shi Gang, Wang Yuanqing, Shi Yongjiu. COMPARISON OF MONOTONIC AND CYCLIC PERFORMANCES OF STRUCTURAL STEEL Q345 AND Q460[J]. INDUSTRIAL CONSTRUCTION, 2012, 42(1): 13-17,55. doi: 10.13204/j.gyjz201201003

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COMPARISON OF MONOTONIC AND CYCLIC PERFORMANCES OF STRUCTURAL STEEL Q345 AND Q460

doi: 10.13204/j.gyjz201201003

1.
1. School of Civil Engineering,Chongqing University,Chongqing 400045,China;
2.
2. Key Laboratory of New Technology for Construction of Cities in Mountain Area(Chongqing University),Ministry of Education,Chongqing 400045,China;
3.
3. Key Laboratory of Civil Engineering Safety and Durability of China Education Ministry,Department of Civil Engineering,Tsinghua University,Beijing 100084,China

Received Date: 2011-06-20
Publish Date: 2012-01-20

Abstract

Abstract

The mechanical properties of steel under monotonic loading and cyclic loading are quite different,because of cyclic hardening,cyclic softening and bauschinger effect.Based on the monotonic and cyclic loading experiment of structural steel Q345 and Q460,the comparison of monotonic performance,cyclic loading phenomenon,cyclic performance and cyclic constitutive model were analyzed.The results showed that:the ductility was good under monotonic loading and Q460 was better.The stress-strain curves possed of the phenomenon of cyclic hardening,cyclic softening,and Bauschinger effect.The hardening was advanced under cyclic loading and Q345 was remarkable.The energy dissipation capacity of Q460 was not lower than Q345,and steel occured cumulative damage under cyclic loading.The mixed hardening model could well simulate the cyclic tension-compression curves,which might provide cyclic constitutive model accurately of Q345 and Q460 to study the seismic behavior of steel structures.
- high strength steel,
- monotonic loading,
- cyclic loading,
- ducility,
- hysteretic behavior

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References

董永涛,张耀春. 建筑用钢循环塑性本构模型[J].哈尔滨建筑大学学报,1993,(05):106-112.

GB/T1591-2008低合金高强度结构钢[S].

王飞,施刚,戴国欣. 屈强比对钢框架抗震性能影响研究进展[J].建筑结构学报,2010,(增刊):18-22.

Langenberg P. Relation Between Design Safety and fy/fu Ratio in Application of Welded High Strength Structural Steel[A].Safety and fy/fu Ratio.Beljing,2008.28-46.

陈绍蕃. 钢结构设计原理[M].北京:北京科学技术出版社,2005.

Ban H Y,Shi G,Shi Y J. Research Progress on the Mechanical Property of High Strength Structural Steels[J].Current Advances in Materials and Processes,2011.640-641.7 JGJ10196建筑抗震试验方法规程[S].

陈惠发. 土木工程材料的本构方程[M].武汉:华中科技大学出版社,2001.

Nip K H,Gardner L,Davies C M. Extremely Low Cycle Fatigue Tests on Structural Carbon Steel and Stainless Steel[J].Journal of Constructional Steel Research,2010,(01):96-110.

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