建筑结构

2011, v.41;No.325(01) 77-78+86

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约束高强混凝土的基本关系研究
Study on the basic relationship of confined high-strength concrete

同盈;梁兴文;
Tong Ying,Liang Xingwen(College of Civil Engineering,Xi'an University of Architecture and Technology,Xi'an 710055,China)

摘要(Abstract):

基于83个约束高强混凝土试件的试验数据,分别分析了箍筋间距、体积配箍率、箍筋强度、混凝土强度对约束高强混凝土的峰值应力、峰值应变和极限应变的影响。结果表明,配箍特征值综合反映了上述因素的影响,是最主要的影响因素。建立了约束高强混凝土的峰值应力、峰值应变、极限应变与配箍特征值之间的关系。
According to the experimental results of 83 confined high-strength concrete specimens,the influences of stirrup spacing,volume stirrup ratio,stirrup strength,concrete strength on peak stress,peak strain and ultimate strain of confined high-strength concrete were analyzed.The results show that confining reinforcement characteristic value is the synthetical reflection of the above-mentioned factors and the most important influencing factor.Taking confining reinforcement characteristic value as a parameter,the relations between peak stress,peak strain,ultimate strain and confining reinforcement characteristic value were respectively established.

关键词(KeyWords): 约束高强混凝土;配箍特征值;峰值应力;峰值应变;极限应变
confined high-strength concrete;confining reinforcement characteristic value;peak stress;peak strain;ultimate strain

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金资助项目(50678149)

作者(Author): 同盈;梁兴文;
Tong Ying,Liang Xingwen(College of Civil Engineering,Xi'an University of Architecture and Technology,Xi'an 710055,China)

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DOI: 10.19701/j.jzjg.2011.01.019

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