| 一种新的混凝土二维强度准则 |
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| 引用本文： | 杨卫忠,王云莉.一种新的混凝土二维强度准则[J].郑州大学学报(工学版),2008,29(4):120-123. |
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| 作者姓名： | 杨卫忠 王云莉 |
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| 作者单位： | 1. 郑州大学土木工程学院,河南,郑州,450001
2. 河南省建设技术发展中心,河南,郑州,450013 |
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| 摘 要： | 混凝土破坏起因于两种不同裂缝形态,即张开型裂缝和滑移型裂缝,二维应力状态下混凝土的破坏可分为拉伸破坏和剪切破坏,由此发展了一类混凝土二维强度准则模型,其参数可通过混凝土二维受压时的最大强度和相对应的应力比及受压强度影响系数确定;同时,该模型能反映混凝土破坏特征,可分别与已有强度准则和试验结果具有相近的结果,并便于工程应用.
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| 关 键 词： | 混凝土 强度准则 二维应力 破坏机制 |
A New Strength Criterion for Concrete in Biaxial Stress |
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| YANG Wei-zhong
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WANG Yun-Li.A New Strength Criterion for Concrete in Biaxial Stress[J].Journal of Zhengzhou University: Eng Sci,2008,29(4):120-123. |
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| Authors: | YANG Wei-zhong WANG Yun-Li |
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| Affiliation: | YANG Wei-zhong1,WANG Yun-Li2 (1.School of Civil Engineering,Zhengzhou University,Zhengzhou 450002,China,2.Building Technology Development Centre of Henan Province,Zhengzhou 450013,China) |
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| Abstract: | It is well known that concrete will fail in the form of cracking and sliding for the uniaxial tension and compression,the failure model can also occur in biaxial stress state,and the strength criterion that can represent the cracking and sliding is also proposed.The present failure criterion involves three independent material parameters.They may be determined by the maximum biaxial compressive strength and the stress ratio as well as the coefficient that affects tensile strength in tension-compression stre... |
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| Keywords: | concrete strength criterion biaxial stress failure mechanism |
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