哈尔滨工程大学学报2024，Vol.45Issue(7)：1391-1399,9.DOI:10.11990/jheu.202204043
PBL抗剪传力钢筋连接接头受拉力学性能试验
Experimental investigation on the tensile capacity of steel bar connectors using PBL shear key
摘要
Abstract
The connection of steel bars between prefabricated concrete components is crucial for the suitability and cost-effectiveness of constructing projects.In the Chinese engineering field,grouted sleeve connections and grouted spiral-confined lap connections are commonly used steel bar connection technologies.However,these two connec-tion methods have shortcomings,including construction difficulties,low efficiency,and challenges in quality in-spection.This paper proposes three kinds of steel bar connectors:the PBL-perforated rebar connection,the PBL-perforated tube connection,and the PBL-U rebar connection.The proposed steel bar connectors facilitate the rein-forcement stress transfer between different precast concrete members while offering advantages like ease of construc-tion,effective quality control,and reduced costs.Experimental investigations were conducted on 18 specimens,in-cluding all 3 connector types across 6 parameter groups.This study examined their tensile capacities,failure modes,bearing capacities,and deformation characteristics,deriving the influences of different factors on the tensile strength of the proposed steel bar connectors.Additionally,comparisons were made regarding the mechanical prop-erties of tensile strength among the three steel bar connectors.The results show that all three steel bar connectors effectively transmit load through rebars,preliminarily verifying the validity of the proposed steel bar connectors.关键词
装配式混凝土/钢筋连接接头/PBL剪力键/钢管混凝土/拉伸试验/裂缝发展/破坏模式/受拉承载力Key words
precast concrete structure/steel bar connector/PBL shear connector/concrete-filled steel tube/tensile experiment/crack pattern/failure mode/tensile capacity分类
建筑与水利引用本文复制引用
龚超,梁梓豪,张素梅,李孝忠,梁伟桥,闫贵海,姚志东..PBL抗剪传力钢筋连接接头受拉力学性能试验[J].哈尔滨工程大学学报,2024,45(7):1391-1399,9.基金项目
中国五矿集团有限公司"应用基础研究"科技专项计划(2019ZXB07) （2019ZXB07）
中国中冶重大研发项目. （）
