摘要
统计了国内外71根再生混凝土梁受剪试验数据,分析了影响再生混凝土梁抗剪承载力的因素,并结合规范GB 50010—2010拟合出了再生混凝土梁抗剪承载力公式.再生混凝土梁抗剪承载力比普通混凝土梁低,并随着再生混凝土骨料取代率的增大而降低.工程设计中,要控制再生混凝土骨料取代率75%以内,建议取再生混凝土梁抗剪折减系数为0.80。
Through the analysis of 71 test data,the influence of recycled concrete beam shear bearing capacity factors are given.Combined with GB 50010—2010,shear bearing capacity formula of recycled concrete beam is fitted out.Recycled concrete beam shear strength is lower than ordinary concrete beam,and with the recycled concrete aggregate replacement ratio increased.In engineering design,the recycled concrete aggregate replacement ratio should be controlled.
作者
闫国新
孙红霞
张晓磊
周宜红
YAN Guoxin;SUN Hongxia;ZHANG Xiaolei;ZHOU Yihong(Kaifeng Yellow River Civil Engineering Experimental Center,Yellow River Conservancy Technical Institute,Kaifeng 475004,China;Kaifeng Bianlong Survey and Design Center,Kaifeng 475001,China;China Three Gorges University,Yichang 443002,China)
出处
《混凝土》
CAS
北大核心
2019年第7期37-40,共4页
Concrete
基金
国家自然科学基金项目（51479103）
黄河水院科研基金项目（2016KXJS006）
关键词
再生混凝土
抗剪承载力
再生骨料率
抗剪承载力公式
recycled concrete
shear bearing capacity
recycled coarse aggregate replacement ratio
ultimate shear formula
