BOND PERFORMANCE EXPERIMENT FOR FLY ASH CONCRETE AND STEEL BAR

作     者：王倩 吴瑾 Wang Qian;Wu Jin

作者机构：南京航空航天大学航空宇航学院 

出 版 物：《Transactions of Nanjing University of Aeronautics and Astronautics》 (南京航空航天大学学报（英文版）)

年 卷 期：2012年第29卷第3期

页      面：302-306页

核心收录：

学科分类：080704[工学-流体机械及工程] 080103[工学-流体力学] 08[工学] 0807[工学-动力工程及工程热物理] 0802[工学-机械工程] 0825[工学-航空宇航科学与技术] 0704[理学-天文学] 0801[工学-力学（可授工学、理学学位）] 

基　　金：Supported by the Program of Excellent Talents in Six Fields of Jiangsu Province(2008183)~~ 

主　　题：fly ash concrete bond performance fly ash content bond stress distribution 

摘      要：The impact of fly ash content on bond performance of steel bars and their surrounding concrete is studied by means of sticking strain gauges on steel bars. The average bond stress-slip curves, the steel strain-anchor location curves, and the bond stress-anchor position curves of the pullout specimens with various fly ash contents are obtained. Results indicate that the bond performance of concrete and steel bars can be improved and the distribution of steel strain along the anchorage length tends to be more uniform by adding fly ash in concrete specimens, and both ultimate bond stress and ultimate slip deformation increase the most when 20% of specimens′ content is fly ash.