doi:10.16186/j.cnki.1673-9787.2020.2.19

Received:2019/05/15

Revised:2019/07/01

Published:2020/03/15

Experimental study on grouting overlap of vertical reinforcement sleeve ofassembled shear wall

REN Hongwei, WANG Siyuan, YAN Shan, HAN Yutao

Earthquake Engineering Research Center of Hebei Province， North China University of Science and Technology， Tangshan 063210 ，Heibei， China

Abstract:In order to study the influence of the overlap length， bar diameter and strength of concrete grouting material inside sleeve on the connection effect of reinforcement， an one-way tensile test was carried out on 25 specimens of grouting overlap of reinforcement sleeve. The failure mode， strength， strain of sleeve and relative slip between reinforcement and sleeve were analyzed. The influence of sleeve length and wall thickness， reinforcement diameter， strength of grouting material and treatment of sleeve port on the performance of grouting overlap of reinforcement sleeve connection were obtained. Based on experimental data and analysis of the mechanism of reinforcement overlap connection， the formula of reinforcement overlap length when sleeve grouting overlap connection was adopted was calculated，which provided a theoretical basis for reinforcement connection in assembled shear wall.

Key words:reinforcement overlap connection;sleeve grouting;assembled structure;bond slip

装配式剪力墙竖向钢筋套筒注浆搭接试验研究_任宏伟.pdf