高强钢筋RPC梁受弯构件正截面承载力试验研究  

Experimental study on flexural capacity of normal section of high strength reinforced reactive powder concrete beam

作　　者：曹霞[1] 常婧[1] 王艳俊 

机构地区：[1]桂林理工大学土木与建筑工程学院,广西桂林541004 [2]焦作市宏博房屋建筑设计有限责任公司,河南焦作454000

出　　处：《河南理工大学学报（自然科学版）》2015年第1期109-115,123,共8页Journal of Henan Polytechnic University（Natural Science）

基　　金：国家自然科学基金资助项目(51368013);广西科技攻关项目(0995004);广西岩土力学与工程重点实验室项目(11-CX-04);广西矿冶与环境科学实验中心科研项目(KH2013ZD007)

摘　　要：对6根高强钢筋RPC(Reactive Powder Concrete)简支梁进行了静力三分点加载试验,分析了不同纵筋配筋率、纵筋等级、纵筋直径和受压钢筋直径不同时对梁的受力性能影响,得到结论为:平截面假定对于高强钢筋RPC梁同样适用;配筋率是高强钢筋RPC梁承载力的主要影响因素;参照普通钢筋混凝土梁正截面承载力计算模型,导出了高强钢筋RPC受弯构件正截面承载力计算公式;高强钢筋RPC梁的界限相对受压区高度为0.62。Six high-strength steel reactive powder concrete （RPC）eharpy-third points were statically tested, and the influence of stress performance on the beams was analysed when different longitudinal reinforcement ratio, longitudinal reinforcement grade, diameter and longitudinal reinforcement bar diameter in different pres- sure were changed. The conclusions are as follows： plane crosss-section assumption is also available to apply to high strength reinforced RPC beams; reinforcement ratio is the main factor bearing capacity of reinforced RPC beams ; with the reference of ordinary reinforced concrete normal section bearing capacity calculation, the formula of normal section bearing capacity for high strength reinforced RPC is derived; the relative RPC com- pression zone height for the boundary of high-strength steel beams is 0.62.

关 键 词：高强钢筋 活性粉末混凝土 简支梁 平截面假定 

分 类 号：TU375.1[建筑科学—结构工程]