机制砂再生粗骨料混凝土梁受剪承载力试验研究  

Experimental Research on Shear Capacity of MSRCAC Beams

作　　者：潘丽云[1] 李广欣[1] 赵顺波[1] 

机构地区：[1]华北水利水电大学土木与交通学院,河南郑州450045

出　　处：《华北水利水电学院学报》2013年第4期50-52,共3页North China Institute of Water Conservancy and Hydroelectric Power

基　　金：郑州市科技领军人才培育计划(096SYJH23105);生态建筑材料河南省高校重点实验室培育基地项目(豫教科外[2009]609号);生态建设材料与结构工程河南省高校科技创新团队支持计划(13IRTSTHN002)

摘　　要：进行了10根机制砂再生粗骨料混凝土梁的试验,剪跨比分别为1.5,2.0,3.0,配箍率为0.22%～0.40%.试验结果表明,机制砂再生粗骨料混凝土梁的受剪承载力随着剪跨比的增大而降低,随着配箍率的增大而提高.通过对比分析普通钢筋混凝土梁的受剪承载力计算公式的计算结果,提出了机制砂再生粗骨料混凝土梁的抗剪承载力的设计和预测计算公式.Ten Machine-made Sand Recycled Coarse Aggregate Concrete（MSRCAC） beams were tested,their shear-span ratios were 1.5,2.0 and 3.0 respectively,and stirrup ratios changed from 0.22% to 0.40%.The test results showed that the shear capacity of MSRCAC beams decreased with the increase of shear-span ratio,and increased with the increase of stirrup ratio.Compared with the calculation results of shear capacity formula of ordinary reinforced concrete beams,the shear capacity formula of MSRCAC beams was presented.

关 键 词：钢筋混凝土梁 机制砂 再生粗骨料 剪跨比 配箍率 受剪承载力 

分 类 号：TV332[水利工程—水工结构工程]