建筑结构学报2013，Vol.34Issue(1)：139-146,8.
粉煤灰混凝土黏结性能试验研究
Experimental research on bond performance of reinforcement and fly ash concrete
摘要
Abstract
Through the two test methods of pull-out test and beam-end test, the bond performance of reinforcement and fly ash concrete was studied. The influences of fly ash content, steel type, bar diameter, concrete strength and concrete cover depth on bond performance of fly ash concrete were analyzed. The results show that; the larger the content of fly ash, the smaller some variables such as the loading end slip, the free end slip, the rebar strain at the loading end and the peak bond stress. The higher the strength of concrete, the larger the load corresponding to the free end slip, the smaller the loading end slip and the free end slip, and the larger the rebar strain at the loading end and the bond stress peak value. The larger the steel bar diameter, the smaller the loading end slip, the free end slip and the rebar strain at the loading end. Compared with HRB335 steel, the load of HRB400 steel corresponding to the free end slip is larger. The loading end slip, the free end slip, the rebar strain at the loading end and the free end, and the required bond anchorage length are smaller, while the peak bond stress is larger.关键词
粉煤灰混凝土/直接拔出试验/梁式试验/黏结性能Key words
fly ash concrete/ pull-out test/ beam-end test/ bond performance分类
建筑与水利引用本文复制引用
胡晓鹏,牛荻涛,张永利..粉煤灰混凝土黏结性能试验研究[J].建筑结构学报,2013,34(1):139-146,8.基金项目
国家杰出青年科学基金项目(50725824),国家"十一五"科技支撑项目(2006BAJ03A02-03),陕西省自然科学基金(2012JQ7020). （50725824）
