|本期目录/Table of Contents|

[1]张 敏,李昆松,卢 旦,等.纵向钢筋C型卡槽连接单向拉伸力学性能[J].建筑科学与工程学报,2024,41(02):58-65.[doi:10.19815/j.jace.2022.05002]
 ZHANG Min,LI Kunsong,LU Dan,et al.Mechanical properties of longitudinal steel bar C-shaped groove connection under uniaxial tension[J].Journal of Architecture and Civil Engineering,2024,41(02):58-65.[doi:10.19815/j.jace.2022.05002]
点击复制

纵向钢筋C型卡槽连接单向拉伸力学性能(PDF)
分享到:

《建筑科学与工程学报》[ISSN:1673-2049/CN:61-1442/TU]

卷:
41卷
期数:
2024年02期
页码:
58-65
栏目:
建筑结构
出版日期:
2024-03-30

文章信息/Info

Title:
Mechanical properties of longitudinal steel bar C-shaped groove connection under uniaxial tension
文章编号:
1673-2049(2024)02-0058-08
作者:
张 敏1,2,李昆松1,2,卢 旦3,陈宜虎1,2,4,于 伟1,2,刘艳萍1,2
(1. 桂林理工大学 广西建筑新能源与节能重点实验室,广西 桂林 541004; 2. 桂林理工大学 土木与建筑工程学院,广西 桂林 541004; 3. 华东建筑设计研究院有限公司,上海 200002; 4. 贺州学院 建筑与电气工程学院,广西 贺州 542899)
Author(s):
ZHANG Min1,2, LI Kunsong1,2, LU Dan3, CHEN Yihu1,2,4, YU Wei1,2, LIU Yanping1,2
(1. Guangxi Key Laboratory of New Energy and Building Energy Saving, Guilin University of Technology, Guilin 541004, Guangxi, China; 2. College of Civil Engineering and Architecture, Guilin University of Technology, Guilin 541004, Guangxi, China; 3. East China Architectural Design & Research Institute Co., Ltd., Shanghai 200002, China; 4. College of Architecture and Electrical Engineering, Hezhou University, Hezhou 542899, Guangxi, China)
关键词:
钢筋连接 C型卡槽连接 单向拉伸 锚固板直径
Keywords:
steel bar connection C-shaped groove connection uniaxial tension diameter of anchor plate
分类号:
TU375
DOI:
10.19815/j.jace.2022.05002
文献标志码:
A
摘要:
为提高装配式纵向钢筋连接的施工效率,提出了C型卡槽连接方式,制作9个连接件并进行单向拉伸试验,观察其破坏形态,研究试件荷载-位移曲线、应变发展过程,分析不同锚固板直径对连接件连接性能的影响; 基于混凝土局部受压计算公式,推导出C型卡槽连接钢筋的承载力计算公式,并给出不同锚固板直径与带锚固板钢筋直径的适配表。结果表明:锚固板直径为43 mm和48 mm的连接件发生带锚固板钢筋拉断破坏,荷载-位移曲线与单根钢筋拉伸的荷载-位移曲线相似,均能满足JGJ 107—2016和ACI 318对接头的强度要求; 锚固板直径为38 mm的连接件是依据JGJ 256—2011选取锚固板直径,试验过程中发生带锚固板钢筋拔出破坏,证明按照规程取值,锚固板直径偏小,无法满足连接要求; 锚固板直径为38 mm的连接件其荷载-位移曲线呈现波浪形,承载力虽小于前两者,但仍具有较好的延性和较高的残余承载力; 所有连接件的C型卡槽在整个受力过程中应变值较小,始终处于弹性阶段,C型卡槽环向应变表现为压应变,C型卡槽连接钢筋承载力的理论计算结果与试验结果相符。
Abstract:
In order to improve the construction efficiency of prefabricated longitudinal reinforcement connection, the C-shaped groove connection method was proposed. Nine connectors were made and uniaxial tensile tests were carried out to observe their failure modes. The load-displacement curve and strain development process of specimens were studied, and the influence of different anchor plate diameters on the connection performance of connectors was analyzed. Based on the calculation formula of local compression of concrete, the calculation formula of bearing capacity of C-shaped groove connection steel bar was derived. The fitting table of different anchorage plate diameters and the diameter of steel bar with anchorage plate was given. The results show that the connector with anchor plate diameter of 43 mm and 48 mm has tensile failure of steel bars with anchor plate, and the load-displacement curve is similar to the load-displacement curve of single steel bar, which can meet the strength requirements of JGJ 107—2016 and ACI 318. Anchor plate diameter of 38 mm connector is based on JGJ 256—2011 specification to select the diameter of the anchor plate, and the pull-out failure of the steel bar with anchor plate occurs during the test. It is proved that according to the specification, the diameter of the anchor plate is too small to meet the connection requirements. The load-displacement curve of the connector with the diameter of 38 mm is wavy. Although the bearing capacity is less than the former two, it still has good ductility and high residual bearing capacity. The C-shaped grooves of all connectors have small strain values throughout the loading process and are always in the elastic stage. The circumferential strain of C-shaped grooves is compressive strain. The theoretical calculation results of bearing capacity of C-shaped groove connection steel bar are consistent with the experimental results.

参考文献/References:

[1] 朱俊成,余 欢,石思源.装配整体式混凝土结构钢筋连接技术及应用[J].建筑技术开发,2021,48(17):13-14.
ZHU Juncheng,YU Huan,SHI Siyuan.Connection technology and application of steel bar of prefabricated integral concrete structure[J].Building Technology Development,2021,48(17):13-14.
[2]詹霖伟.装配整体式混凝土结构钢筋连接技术研究进展探析[J].福建建筑,2021(7):76-81.
ZHAN Linwei.The analysis on research progress for steel bar connection technology of monolithic precast concrete frame structure[J].Fujian Architecture & Construction,2021(7):76-81.
[3]余 琼,许雪静,袁炜航,等.不同搭接长度下套筒约束浆锚搭接接头力学试验研究[J].湖南大学学报(自然科学版),2017,44(9):82-91.
YU Qiong,XU Xuejing,YUAN Weihang,et al.Experimental study of mechanical properties of grouted sleeve lapping connector with different lap lengths under tensile load[J].Journal of Hunan University(Natural Sciences),2017,44(9):82-91.
[4]余 琼,许志远,袁炜航,等.两种因素影响下套筒约束浆锚搭接接头拉伸试验[J].哈尔滨工业大学学报,2016,48(12):34-42.
YU Qiong,XU Zhiyuan,YUAN Weihang,et al.Experimental study of grouted sleeve lapping connectors varied in two factors under tensile load[J].Journal of Harbin Institute of Technology,2016,48(12):34-42.
[5]郑永峰,郭正兴.变形灌浆套筒连接性能试验研究及有限元分析[J].建筑结构学报,2016,37(3):94-102.
ZHENG Yongfeng,GUO Zhengxing.Experimental study and finite element analysis on behavior of deformed gout-filled pipe splice[J].Journal of Building Structures,2016,37(3):94-102.
[6]郑永峰,郭正兴,张 新.套筒内腔构造对钢筋套筒灌浆连接黏结性能的影响[J].建筑结构学报,2018,39(9):158-166.
ZHENG Yongfeng,GUO Zhengxing,ZHANG Xin.Effect of sleeve inner cavity structure on bond performance of grouted pipe splice[J].Journal of Building Structures,2018,39(9):158-166.
[7]郑永峰,郭正兴,曹 江.新型灌浆套筒的约束机理及约束应力分布[J].哈尔滨工业大学学报,2015,47(12):106-111.
ZHENG Yongfeng,GUO Zhengxing,CAO Jiang.Confinement mechanism and confining stress distribution of new grouting coupler for rebars splicing[J].Journal of Harbin Institute of Technology,2015,47(12):106-111.
[8]SAYADI A A,ABD RAHMAN A B,SAYADI A,et al.Effective of elastic and inelastic zone on behavior of glass fiber reinforced polymer splice sleeve[J].Construction and Building Materials,2015,80:38-47.
[9]HENIN E,MORCOUS G.Non-proprietary bar splice sleeve for precast concrete construction[J].Engineering Structures,2015,83:154-162.
[10]张望喜,王 嘉,赵学涛,等.钢筋轴线偏心半套筒灌浆连接高温后的单向拉伸试验研究[J].湖南大学学报(自然科学版),2021,49(9):9-19.
ZHANG Wangxi,WANG Jia,ZHAO Xuetao,et al.Study on uniaxial tensile test of half grouted sleeve connection with axial eccentric rebar after high temperature[J].Journal of Hunan University(Natural Sciences),2021,49(9):9-19.
[11]陈建伟,王占文,鞠士龙,等.考虑水泥浆涂层影响的钢筋半灌浆钢制套筒连接性能试验研究[J].建筑结构,2020,50(22):39-44.
CHEN Jianwei,WANG Zhanwen,JU Shilong,et al.Experimental study on connection performance of rebar semi-grouted steel sleeve considering the influence of cement slurry coating[J].Building Structure,2020,50(22):39-44.
[12]王占文,陈建伟,鞠士龙,等.加载方式和锚固长度对钢筋套筒灌浆连接性能影响试验研究[J].工业建筑,2021,51(4):118-125,171.
WANG Zhanwen,CHEN Jianwei,JU Shilong,et al.Experimental study on effect of loading mode and anchorage length on connection behavior of grouting sleeve for rebars splicing[J].Industrial Construction,2021,51(4):118-125,171.
[13]XU F,WANG K,WANG S G,et al.Experimental bond behavior of deformed rebars in half-grouted sleeve connections with insufficient grouting defect[J].Construction and Building Materials,2018,185:264-274.
[14]HUANG Y,ZHU Z G,NAITO C J,et al.Tensile behavior of half grouted sleeve connections:experimental study and analytical modeling[J].Construction and Building Materials,2017,152:96-104.
[15]钢筋锚固板应用技术规程:JGJ 256—2011[S].北京:中国建筑工业出版社,2012.
Technical specification for application of headed bars:JGJ 256—2011[S].Beijing:China Architecture & Building Press,2012.
[16]DEVRIES R A.Anchorage of headed reinforcement in concrete[D].Austin:The University of Texas,1996.
[17]LING J H,ABD RAHMAN A B,IBRAHIM I S,et al.Behaviour of grouted pipe splice under incremental tensile load[J].Construction and Building Materials,2012,33:90-98.
[18]LIN F,ZHAO P.Behavior of grouted sleeve splice for steel profile under tensile loadings[J].Materials,2020,13(9):2037.
[19]钢筋机械连接技术规程:JGJ 107—2016[S].北京:中国建筑工业出版社,2016.
Technical specification for mechanical splicing of steel reinforcing bars:JGJ 107—2016[S].Beijing:China Architecture & Building Press,2016.
[20]Building code requirements for structural con-crete and commentary:ACI 318-11[S].Farmington Hills:American Concrete Institute,2011.
[21]混凝土结构设计规范:GB 50010—2010[S].北京:中国建筑工业出版社,2011.
Code for design of concrete structures:GB 50010—2010[S].Beijing:China Architecture & Building Press,2011.

相似文献/References:

备注/Memo

备注/Memo:
收稿日期:2023-05-07
基金项目:广西自然科学基金项目(2018GXNSFAA050145); 广西重点研发计划项目(2021AB31014); 国家自然科学基金项目(51868013)
作者简介:张 敏(1980-),男,工学博士,教授,E-mail:emailzm@126.com.。
通信作者:卢 旦(1978-),男,工学博士,教授级高级工程师,E-mail:474558052@qq.com。
更新日期/Last Update: 2024-03-25