«上一篇/Previous Article|本期目录/Table of Contents|下一篇/Next Article»

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

卷:

40卷

期数:

2023年01期

页码:

38-48

栏目:

建筑材料

出版日期:

2023-01-10

文章信息/Info

Title:

Bond-slip constitutive model of recycled coarse aggregate concrete with limestone manufactured sand in square steel tubes

文章编号:

1673-2049(2023)01-0038-11

作者:

沙 蒙^1,2,李 祥^1,2,刘紫洋³,管民生^1,2

(1. 深圳大学 土木与交通工程学院,广东 深圳 518060; 2. 深圳大学 滨海城市韧性基础设施教育部重点实验室,广东 深圳 518060; 3. 深圳市机场(集团)有限公司,广东 深圳 518128)

Author(s):

SHA Meng^1,2, LI Xiang^1,2, LIU Ziyang³, GUAN Minsheng^1,2

(1. College of Civil and Transportation Engineering, Shenzhen University, Shenzhen 518060, Guangdong, China; 2. Key Laboratory of Coastal Urban Resilient Infrastructures, Shenzhen University, Shenzhen 518060, Guangdong, China; 3. Shenzhen Airport(Group)Co., Ltd., Shenzhen 518128, Guangdong, China)

关键词:

方钢管;  石灰石机制砂;  再生粗骨料混凝土;  位置函数;  黏结滑移本构模型

Keywords:

square steel tube;  limestone manufactured sand;  recycled coarse aggregate concrete;  position function;  bond-slip constitutive model

分类号:

TU317

DOI:

10.19815/j.jace.2021.08025

文献标志码:

A

摘要:

通过16根方钢管石灰石机制砂再生粗骨料混凝土试件推出试验,研究了机制砂再生粗骨料混凝土强度等级、石粉含量以及钢管宽厚比对方钢管石灰石机制砂再生粗骨料混凝土黏结性能的影响,结合试件自由端滑移曲线分析了黏结滑移发展过程与内在机理。对比了方钢管卵石机制砂再生粗骨料混凝土平均黏结强度,采用方钢管卵石机制砂再生粗骨料混凝土黏结滑移本构模型拟合得到了石灰石机制砂试件黏结滑移曲线,并与试验结果进行了对比验证。由于试件的黏结滑移性能受测点位置影响,通过引入位置函数,提出了能反映局部黏结滑移规律的黏结滑移本构模型。结果表明:方钢管石灰石机制砂再生粗骨料混凝土黏结滑移经历了胶结、滑移、摩阻力、后滑移4个阶段,且具有更高黏结强度; 对比本构模型得到的计算值与试验值并分析其误差发现,采用方钢管卵石机制砂再生粗骨料混凝土黏结滑移本构模型拟合的黏结强度及滑移值与试验值相对误差均小于5%,且标准差小于0.05,证明该本构模型具有较好适用性。

Abstract:

The push-out tests on 16 limestone manufactured sand recycled coarse aggregate concrete(MSRAC)-filled square steel tube specimens were conducted, and the influences of strength grade of MSRAC, stone powder content, and width-to-thickness ratio of steel tube on the bond-slip behavior between limestone MSRAC and square steel tube were investigated. Based on the free end slip curve of the specimen, the development process and internal mechanism of the bond-slip behavior were analyzed. The average bond strength was compared with that of pebble MSRAC-filled square steel tube. The bond-slip constitutive model of pebble MSRAC in square steel tube was employed to simulate the bond-slip curve of the limestone MSRAC in square steel tube and verified with the test results. The bond-slip behavior of the specimen was affected by the position of the measured point. By introducing the position function, a bond-slip constitutive model which can reflect the local bond slip law was proposed. The results show that limestone MSRAC-filled square steel tube has experienced four stages during the testing, including cementation, slipping, frictional resistance, and after-slipping, respectively, and it has higher bond strength comparing with that of pebble MSRAC. Comparing the calculated values with the test values obtained from the constitutive model and analyzing its error, it is found that the relative error between the bond strength and slip value fitted by the bond-slip constitutive model of pebble MSRAC in square steel tube and the test values is less than 5%, and the standard deviation is less than 0.05, which proves that the constitutive model has good applicability.

参考文献/References:

[1] 谢开仲,刘振威,盖炳州,等.不同岩性的机制砂混凝土本构关系及力学性能[J].建筑科学与工程学报,2021,38(1):99-106.
XIE Kaizhong,LIU Zhenwei,GAI Bingzhou,et al.Constitutive relationship and mechanical properties of manufactured sand concrete with different rocks[J].Journal of Architecture and Civil Engineering,2021,38(1):99-106.
[2]谢开仲,刘振威,朱茂金,等.不同石粉含量的机制砂混凝土高温后力学性能[J].建筑科学与工程学报,2021,38(3):80-89.
XIE Kaizhong,LIU Zhenwei,ZHU Maojin,et al.Mechanical properties of manufactured sand concrete with different stone powder content after high temperatures[J].Journal of Architecture and Civil Engineering,2021,38(3):80-89.
[3]户 宁.使用石灰石废石生产机制砂的研究[D].石家庄:石家庄铁道大学,2019.
HU Ning.Study on Production of Manufactured sand using limestone scrap[D].Shijiazhuang:Shijiazhuang Tiedao University,2019.
[4]GUAN M S,WEI C Q,WANG Y,et al.Experimental investigation of axial loaded Circular steel tube short columns filled with manufactured sand concrete[J].Engineering Structures,2020,221:111033.
[5]韩林海,牟廷敏,王法承,等.钢管混凝土混合结构设计原理及其在桥梁工程中的应用[J].土木工程学报,2020,53(5):1-24.
HAN Linhai,MU Tingmin,WANG Facheng,et al.Design theory of CFST(concrete-filled steel tubular)mixed structures and its applications in bridge engineering[J].China Civil Engineering Journal,2020,53(5):1-24.
[6]李卫宁,徐金俊,陈宗平,等.方钢管再生混凝土粘结滑移性能试验研究[J].广西大学学报(自然科学版),2012,37(1):68-74.
LI Weining,XU Jinjun,CHEN Zongping,et al.Experimental research on the bond-slip behaviour of recycled aggregate concrete-filled square steel tubes[J].Journal of Guangxi University(Natural Science Edition),2012,37(1):68-74.
[7]吴 波,王 辉,刘晓珠.内置高强角钢的方钢管混凝土柱偏压性能试验[J].建筑科学与工程学报,2021,38(2):16-25.
WU Bo,WANG Hui,LIU Xiaozhu.Experiment on Eccentric compressive behaviors of square CFST columns with built-in high-strength steel angles[J].Journal of Architecture and Civil Engineering,2021,38(2):16-25.
[8]LI G C,CHEN B W,YANG Z J,et al.Experimental and numerical behavior of eccentrically loaded square concrete-filled steel tubular long columns made of high-strength steel and concrete[J].Thin-walled Structures,2021,159:107289.
[9]AHMED M,LIANG Q Q,PATEL V I,et al.Experimental and numerical investigations of eccentrically loaded rectangular concrete-filled double steel tubular columns[J].Journal of Constructional Steel Research,2020,167:105949.
[10]FUJIMOTO T,MUKAI A,NISHIYAMA I,et al.Behavior of eccentrically loaded concrete-filled steel tubular columns[J].Journal of Structural Engineering,2004,130(2):203-212.
[11]AHMED M,LIANG Q Q,PATEL V I,et al.Experimental and numerical studies of square concrete-filled double steel tubular short columns under eccentric loading[J].Engineering Structures,2019,197:109419.
[12]AHMED M,LIANG Q Q,PATEL V I,et al.Behavior of eccentrically loaded double circular steel tubular short columns filled with concrete[J].Engineering Structures,2019,201:109790.
[13]陈宗平,经承贵,宁 璠.螺旋筋增强方钢管混凝土柱的轴压性能及参数分析[J].土木工程学报,2018,51(1):13-22,57.
CHEN Zongping,JING Chenggui,NING Fan.Axial compressive behavior and parametric analysis of spiral reinforcement concrete filled square steel tubular columns[J].China Civil Engineering Journal,2018,51(1):13-22,57.
[14]徐金俊,陈宗平,薛建阳,等.圆钢管再生混凝土界面黏结失效的推出试验研究[J].建筑结构学报,2013,34(7):148-157.
XU Jinjun,CHEN Zongping,XUE Jianyang,et al.Failure mechanism of interface bond behavior between circular steel tube and recycled aggregate concrete by push-out test[J].Journal of Building Structures,2013,34(7):148-157.
[15]陈宗平,徐金俊,薛建阳,等.钢管再生混凝土黏结滑移推出试验及黏结强度计算[J].土木工程学报,2013,46(3):49-58.
CHEN Zongping,XU Jinjun,XUE Jianyang,et al.Push-out test on the interface bond-slip behavior and calculation on bond strength between steel tube and recycled aggregate concrete in RACFST structures[J].China Civil Engineering Journal,2013,46(3):49-58.
[16]MORISHITA Y,TOMII M.Experimental studies on bond strength between square steel tube and encased concrete core under cyclic shearing forced and constant axial force[J].Transactions of the Japan Concrete Institute,1982,4:363-370.
[17]MORISHITA Y,TOMII M,YOSHIMURA K.Experimental studies on bond strength in concrete filled circular steel tubular columns subjected to axial loads[J].Transactions of the Japan Concrete Institute,1979,1(1):351-358.
[18]VIRDI K S,DOWLING P J.Bond strength in concrete filled circular steel tubes[R].London:Imperial College London,1975.
[19]王小倩.钢管与再生混凝土粘结性能试验研究[D].郑州:华北水利水电大学,2017.
WANG Xiaoqian.Steel tube and recycled concrete bonding performance test research[D].Zhengzhou:North China University of Water Resources and Electric Power,2017.
[20]柯晓军,叶春颖,陈世杰,等.石粉含量及机制砂取代率对再生粗骨料混凝土流动性和抗压强度的影响[J].混凝土,2020(6):106-108,112.
KE Xiaojun,YE Chunying,CHEN Shijie,et al.Effect of stone powder content and machine-made sand replacement rates on fluidity and compressive strength of recycled coarse aggregate concrete[J].Concrete,2020(6):106-108,112.
[21]杨海峰,刘成丽,梁冬瑶,等.含石粉机制砂再生混凝土基本力学性能研究[J].混凝土,2019(8):63-67.
YANG Haifeng,LIU Chengli,LIANG Dongyao,et al.Study on basic mechanical properties of recycled concrete containing stone powder[J].Concrete,2019(8):63-67.
[22]张如林,陈玉前,刘书童,等.机制砂石粉含量对混凝土的性能影响研究[J].混凝土,2016(3):84-85.
ZHANG Rulin,CHEN Yuqian,LIU Shutong,et al.Influence of stone powder content on performance of machine-made sand concrete[J].Concrete,2016(3):84-85.
[23]张 坤.钢管高强机制砂混凝土粘结性能试验研究[D].深圳:深圳大学,2017.
ZHANG Kun.Steel tube high-strength machine-made sand concrete bonding performance test research[D].Shenzhen:Shenzhen University,2017.
[24]GUAN M S,WANG G,WANG Y,et al.Bond behavior of square CFT using manufactured sand and recycled coarse aggregate[J].Construction and Building Materials,2021,269:121289.
[25]管民生,王梦森,曾庆立,等.方钢管卵石机制砂再生粗骨料混凝土粘结滑移本构[J].建筑科学,2021,37(11):94-104.
GUAN Minsheng,WANG Mengsen,ZENG Qingli,et al.Bond-slip constitutive model of recycled coarse aggregate concrete with pebble-made sand in square steel tube[J].Building Science,2021,37(11):94-104.

相似文献/References:

[1]郝文秀,魏兴娜,徐晓,等.方钢管活性粉末混凝土柱地震损伤模型研究[J].建筑科学与工程学报,2022,39(03):165.[doi:10.19815/j.jace.2021.07044]
　HAO Wen-xiu,WEI Xing-na,XU Xiao,et al.Study on Seismic Damage Model of Square Steel Tubular Reactive Powder Concrete Columns[J].Journal of Architecture and Civil Engineering,2022,39(01):165.[doi:10.19815/j.jace.2021.07044]

备注/Memo

备注/Memo:

收稿日期:2021-08-11
基金项目:国家自然科学基金重大项目(52090082)
作者简介:沙 蒙(1998-),男,工学硕士研究生,E-mail:shameng2020@email.szu.edu.cn。
通信作者:管民生(1979-),男,工学博士,研究员,E-mail:msguan@szu.edu.cn。

常用功能

更新日期/Last Update: 2023-01-01