水资源与水工程学报2017，Vol.28Issue(2)：189-196,8.DOI:10.11705/j.issn.1672-643X.2017.02.33
UHPC材料连接的预制梁受弯性能试验研究
Experimental studies of bending performance of ultra high performance concrete prefabrication-assembly beam
摘要
Abstract
In order to investigate the bending performance of UHPC prefabrication and assembly beams,8 beams were designed and the static load experiments carried out,including 6 UHPC prefabrication-assembly beams which had different lapped lengths,an ordinary concrete prefabrication assembly beam and a cast-in-situ concrete beam to analyze the impact of different lapped lengths to the UHPC prefabrication-assembly beams.The results showed that the failure mode of the prefabrication-assembly beam were similar to the contrast beam,the cracks were distributed evenly over ordinary concrete precast segments.With the increase of lapped length,fracture spacing decreased;the ratio of the measured and calculated values of the bearing capacity of UHPC prefabrication-assembly beam were greater than 1.36,far more than that of ordinary prefabrication-assembly beam;increasing the lapped lengths of steel had little influence to improve the cracking load of UHPC assembly beams,when the lapped length for 10d,the bending performance of UHPC prefabrication-assembly beams were basic similar to the cast-in-situ concrete beam.关键词
UHPC预制装配梁/受弯性能/破坏形态/承载力/变形性能Key words
UHPC(ultra-high performance concrete) prefabrication and assembly beam/flexural behavior/failure mode/bearing capacity/deformation properties分类
建筑与水利引用本文复制引用
冯军骁,郑七振,龙莉波,陈刚..UHPC材料连接的预制梁受弯性能试验研究[J].水资源与水工程学报,2017,28(2):189-196,8.基金项目
上海市科学技术委员会科研计划项目(14DZ120835) （14DZ120835）
