摘要
为深入研究机制砂再生粗骨料混凝土结构的性能,本研究进行了12根机制砂再生粗骨料混凝土配筋柱的大偏心受压性能试验,研究了长细比和初始偏心距变化对配筋柱在大偏心轴向压力作用下的正截面抗裂度、裂缝分布和裂缝宽度的影响规律,并通过与现行规范相应计算公式的计算结果对比,分析了机制砂再生粗骨料混凝土配筋柱的大偏心受压裂缝的特性,给出了正截面抗裂度和裂缝宽度的计算建议.
To thoroughly research the structural behaviors of concrete mixed with manufactured sand and recycled coarse aggregate（ MSRCAC）,some tests were carried out on 12 reinforced MSRCAC columns under large eccentric compression. The effects of the ratio of length to cross-sectional height and the initial eccentric distance on the cross-sectional cracking resistance,crack distribution and crack width of reinforced MSRCAC columns under large eccentric compressive force were studied. By the comparative analyses with the calculation results with formulas in current design code,the large eccentric compressive characteristics of reinforced MSRCAC columns are discussed,and the suggestions for calculating cross-sectional cracking resistance and crack width are proposed.
出处
《华北水利水电大学学报（自然科学版）》
2015年第6期27-31,共5页
Journal of North China University of Water Resources and Electric Power：Natural Science Edition
基金
河南省教育厅科学技术研究重点项目资助计划(13A560701)
河南省新型城镇建筑技术协同创新中心项目(教科技[2013]638号)
关键词
机制砂再生粗骨料混凝土
配筋柱
大偏心受压
裂缝控制
抗裂度
裂缝宽度
裂缝分布
concrete with manufactured sand and recycled coarse aggregate（MSRCAC）
concrete column
large eccentric compression
crack control
cracking resistance
crack width
crack distribution
