DEFLECTION OF REINFORCED CONCRETE BEAMS WITH RECYCLED COARSE AGGREGATE

被引：0
|
作者：
Wu, Jin [1 ]
Yang, Guixin [1 ]
Ye, Qiang [1 ]
机构：
[1] Nanjing Univ Aeronaut & Astronaut, Dept Civil Engn, Nanjing 210016, Peoples R China
来源：
PROCEEDINGS OF THE FIRST INTERNATIONAL CONFERENCE ON SUSTAINABLE URBANIZATION (ICSU 2010) | 2010年
关键词：
Recycled aggregate; concrete; beam; deflection;
D O I：
暂无
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
The deflection of members must be controlled in order that recycled aggregates are used as structural materials. Flexural properties of 27 reinforced concrete beams with recycled aggregate and 3 reinforced concrete beams with ordinary aggregate are investigated experimentally. The calculating method of stiffness of reinforced concrete beams with recycled aggregate is studied. The results show that the mid-span deflection of recycled coarse aggregate concrete beam is larger than that of ordinary aggregate concrete beam. The internal force arm coefficient, comprehensive coefficient of average strain and non-uniformly distributed strain coefficient of longitudinal tensile reinforcement of reinforced concrete beams with recycled aggregate are obtained by the result of experiments. The expression of flexural stiffness of reinforced concrete beams with recycled coarse aggregate is presented. The calculated values of mid-span deflection of recycled coarse aggregate beams are in good agreement with the test values obtained by other researchers.
引用
收藏
页码：915 / 924
页数：10
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