河南城建学院学报2026，Vol.35Issue(4)：20-29,10.DOI:10.14140/j.cnki.hncjxb.2026.04.003
装配式预制楼板-墙体L形企口连接节点受弯性能试验研究
Experimental study on flexural performance of prefabricated floor-to-wall L-shaped tongue and groove joints
摘要
Abstract
To study the influence of the structural difference at the prefabricated floor-to-wall joints on the flexural performance,representative specimens in three groups were fabricated considering floor-to-wall joint details of L-shaped tongue and groove and bent steel bars.The static test was carried out by applying monotonic vertical load on the cantilever end of the specimen floor.The results show that the failure modes of the specimens are all flexural failure near the plate-wall joint,and the crack distribution forms are basically the same.For specimens with an L-shaped tongue and groove but without bent steel bars,the flexural capacity of the joint is about 10.26%lower than that of the cast-in-place joint.Compared with the cast-in-place specimen,the flexural capacity of the joint is increased by 37.5%,and the improvement is more significant than that of the specimen with only reserved notch and without additional reinforcement.The research shows that the post-cast connection joint with L-shaped tongue and groove reserved in the floor slab and additional bent steel bars has high strength,which can be designed as equivalent cast-in-place.This result is suitable for practical application in prefabricated building systems.关键词
装配式预制楼板-墙体连接/L形企口/受弯承载力/后浇带Key words
prefabricated floor-to-wall connection/L-shaped tongue and groove/flexural capacity/post-cast strip分类
建筑与水利引用本文复制引用
张锋剑,张益源,张远,王启源,刘志钦,徐振宇,楚留声,苏群山,徐笑东,王福梅..装配式预制楼板-墙体L形企口连接节点受弯性能试验研究[J].河南城建学院学报,2026,35(4):20-29,10.基金项目
河南省科技研发计划联合基金项目(252103810034) （252103810034）
河南省科技攻关项目(252102240135) （252102240135）
河南省住房和城乡建设科学技术计划项目(HNJS-2022-K28) （HNJS-2022-K28）
