活性粉末混凝土局压承载力试验与分析  

Experiment and Analysis of Local Compression Bearing Capacity of Reactive Powder Concrete

作　　者：郑文忠[1] 赵军卫[1] 张博一[1] 

机构地区：[1]哈尔滨工业大学土木工程学院,黑龙江哈尔滨150090

出　　处：《南京理工大学学报》2008年第3期381-386,共6页Journal of Nanjing University of Science and Technology

基　　金：国家自然科学基金(50178026);教育部新世纪优秀人才支持计划([2005]290)

摘　　要：为了建立活性粉末混凝土(RPC)局部受压承载力计算方法,对48个RPC棱柱体试件进行了轴心局部受压试验,考察了活性粉末混凝土强度和局压面积比对其局部受压性能的影响。试验结果表明:RPC强度等级对局压强度提高系数影响较小;局压强度提高系数随局压面积比的增大而增大;在局压面积比相同时,RPC局压强度提高系数较高强混凝土低。基于试验结果分别提出了素RPC和掺加钢纤维RPC局压承载力的两类计算模式,可供相关设计标准修订时参考。To establish the calculation method for local compression bearing capacity of reactive powder concrete （RPC） , the axial local compression experiments on 48 RPC prism specimens are completed. The influences of strength of RPC and the local compression area ratio on local compression performance of RPC are researched. Experimental results show that the strength grades of RPC have a little influence on local compression enhancement coefficient and the coefficient increases with the increase of the local compression area ratio. Under the same local compression area ratio, the local compression enhancement coefficient of RPC is lower than the high strength concrete. Based on the experimental results, two kinds of calculation formulas for local compression bearing capacity of plain RPC and RPC with steel fiber are brought forward, All these can be served as references when revising the relevant design standards.

关 键 词：冶性粉末混凝土 局压面积比 局压强度提高系数 承载力 

分 类 号：TU378.1[建筑科学—结构工程]