The Experimental Research of low strength Concrete Considering Strain Rate under Uniaxial Compression

被引：2
|
作者：
Zhang, Yumin [1 ,2 ,3 ]
Jia, Yunfei [4 ]
Su, Youpo [2 ,3 ]
Su, Jingyu [1 ]
机构：
[1] Beijing Univ Technol, Coll Architecture & Civil Engn, Beijing 100022, Peoples R China
[2] Hebei United Univ, Coll Civil & Architectural Engn, Tangshan 063009, Peoples R China
[3] Earthquake Engn Res Ctr Hebei Prov, Tangshan 063009, Peoples R China
[4] Tangshan Jidong Petr Construct Engn, Tangshan 063000, Peoples R China
来源：
ENGINEERING AND RISK MANAGEMENT | 2011年 / 1卷
关键词：
concrete; strain rate; civil engineering; uniaxial compression;
D O I：
10.1016/j.sepro.2011.08.005
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The tests were implemented in low strength concrete with four kinds of strength (C20, C25, C30, C35) and with diffrent strain ratses (10(-5/s-1), 10(-4/s-1), 10(-3/s-1) and 10(-2/s-1)). The stress-strain curves, strength, elastic modulus and Poisson's ratio are studied in different strain rate. The results show that: (1) With the increase of strain rate, the inflexion strength and ultimate strength of concrete were improved; (2) With the increase of strain rate, the static and dynamic elastic modulus increased slightly; (3) Poisson's ratio increased slightly with the growth strain rate. This conclusion is very important in civil engineering. (C) 2011 Published by Elsevier B.V. Selection and/or peer-review under responsibility of the Organising Committee of The International Conference of Risk and Engineering Management.
引用
收藏
页码：23 / 27
页数：5
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