湖南大学学报（自然科学版）2016，Vol.43Issue(11)：131-140,10.
循环荷载作用下新型钢筋套筒灌浆连接结构性能∗
Structural Performance of Innovative Grout Sleeve Splicing for Rebars under Cyclic Loading
摘要
Abstract
To reduce the cost of bar splice,a new type of grouted sleeve was developed with standard seamless steel tube through cold rolling techniques.Based on this sleeve,twelve coupler specimens were prepared and tested under cyclic load as well as incremental tensile load.The structural performance of this novel grouted splice was then studied.The test results showed that the strength and deformation of the splices could satisfy the requirements specified in the JGJ107-2010.Due to the cyclic loads,the ultimate bond strength declined by about ten percent of the specimen strength under direct tension test.Mean-while,because of the confinement provided by the sleeve,the residual bond strength of the bond failed specimen is greater than 50 percent of the ultimate tensile strength.Moreover,it is found that the number of the concentric ribs at each side of the sleeve should not be less than three,and it should be increased properly for the improvement of tensile capacity requirement of the splice.关键词
钢筋套筒灌浆连接/预制混凝土建造/循环加载/接触分析Key words
grout sleeve splicing for rebars/precast construction/cyclic loading/contact analysis分类
建筑与水利引用本文复制引用
郑永峰,郭正兴..循环荷载作用下新型钢筋套筒灌浆连接结构性能∗[J].湖南大学学报（自然科学版）,2016,43(11):131-140,10.基金项目
“十二五”国家科技支撑计划资助项目(2011BAJ10B03) （2011BAJ10B03）
