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

卷:

37卷

期数:

2020年06期

页码:

81-90

栏目:

出版日期:

2020-11-30

文章信息/Info

Title:

Experiment and Numerical Simulation on Bond-slip Behavior Between Angle Steel and Concrete

文章编号:

1673-2049(2020)06-0081-10

作者:

赵卫平¹,王振兴¹,董朋昆¹,朱彬荣²,陈惠玲¹

1.中国矿业大学(北京)力学与建筑工程学院,北京 100083; 2. 中国电力科学研究院,北京 100192

Author(s):

ZHAO Wei-ping¹, WANG Zhen-xing¹, DONG Peng-kun¹, ZHU Bin-rong², CHEN Hui-ling¹

1. School of Mechanics and Civil Engineering, China University of Mining and Technology-Beijing, Beijing 100083, China; 2. China Electric Power Research Institute, Beijing 100192, China.

关键词:

角钢混凝土;  极限黏结强度;  数值模拟;  黏结机理;  传递长度

Keywords:

angle steel concrete;  ultimate bond strength;  numerical simulation;  bond mechanism;  transfer length

分类号:

TU375

DOI:

-

文献标志码:

A

摘要:

为研究角钢混凝土界面黏结性能,以黏结长度、保护层厚度、混凝土强度为变化参数,设计了9个角钢混凝土试件。获取了加载端的荷载-滑移曲线,分析了各参数对极限黏结强度的影响; 提出了黏结界面极限黏结强度计算公式并与试验结果进行对比,两者吻合较好; 基于界面库仑摩擦准则和重启动分析技术建立了精细化有限元模型,实现了对黏结界面逐步剥离过程的准确模拟。基于研究参数提出了传递长度的计算公式,并与数值模拟进行了对比,证明了该公式的适用性。结果表明:角钢的肢尖具有强烈的致裂作用,推出过程中裂缝的发展将显著降低黏结强度; 极限黏结强度随混凝土强度提高和保护层厚度的增大而提高,但随黏结长度的增大近似呈线性降低趋势; 加载端荷载-滑移曲线包括化学胶结段、上升段、下降段和残余段4个阶段,各阶段界面黏结机理和黏结应力的组成均不相同; 黏结界面的破损从加载端向自由端逐步扩展,扩散过程中黏结应力的传递长度保持不变。

Abstract:

In order to study the interface bond behavior between angle steel and concrete, 9 angle steel concrete specimens were designed with the bond length, protective layer depth and concrete strength as parameters. The load-slip curves at the loaded end were obtained, and the influence of each parameter on the ultimate bond strength was analyzed. The calculation formula for the bond strength of interface was proposed, and compared with the test results, they agreed well with each other. Based on the interface Coulomb friction law and restart analysis technology, a refined finite element model was established to precisely simulate the gradual peeling process of the bond interface. Based on the research parameters, a calculation formula of transfer length was proposed, and compared with numerical simulations, which proved the applicability of the formula.The results show that the tip of the angle steel has a strong cracking effect, and the development of cracks during the pushing process will significantly reduce the bond strength. The ultimate bond strength increases with the increasing of concrete strength and protective layer depth, however decreases approximately linearly with the increasing of bond length. The load-slip curves of loaded end include chemical adhesion section, ascending section, descending section and residual section, and the interface bond mechanism and composition of bond stress are different at each stage. The damage of the bond interface gradually expands from loaded end to free end, and the transfer length of the bond stress remains constant during the propagation.

参考文献/References:

[1] 赵鸿铁.组合结构设计原理[M].北京:高等教育出版社,2005. ZHAO Hong-tie.Design Theory of Composite Structure[M].Beijing:Higher Education Press,2005.
[2]ROEDER C W.Composite and Mixed Construction[M].New York:ASCE,1984.
[3]BRYSON J O,MATHEY R G.Surface Condition Effect on Bond Strength of Steel Beams in Concrete[J].Journal of ACI,1962,59(3):397-406.
[4]张 誉,李向民,李 辉,等.钢骨高强混凝土结构的粘结性能研究[J].建筑结构,1999,29(7):3-5,32. ZHANG Yu,LI Xiang-min,LI Hui,et al.Study on Bond Behavior Between Composite Steel Shape and High Strength Concrete[J].Building Structure,1999,29(7):3-5,32.
[5]李方元,赵人达.不同混凝土基体与变形钢筋的粘结滑移特性[J].工业建筑,2002,32(10):31-33,12. LI Fang-yuan,ZHAO Ren-da.The Bond-slip Behaviors Between Different Strength Concrete and Deformed Reinforcing Bars[J].Industrial Construction,2002,32(10):31-33,12.
[6]赵鸿铁.钢与混凝土组合结构[M].北京:科学出版社,2001. ZHAO Hong-tie.Steel and Concrete Composite Structure[M].Beijing:Science Press,2001.
[7]郑山锁,杨 勇,薛建阳,等.型钢混凝土粘结滑移性能研究[J].土木工程学报,2002,35(4):47-51. ZHENG Shan-suo,YANG Yong,XUE Jian-yang,et al.Study on Bond Slip Performance Between Steel and Concrete in SRC Structures[J].China Civil Engineering Journal,2002,35(4):47-51.
[8]郑山锁,邓国专,杨 勇,等.型钢混凝土结构黏结滑移性能试验研究[J].工程力学,2003,20(5):63-69. ZHENG Shan-suo,DENG Guo-zhuan,YANG Yong,et al.Experimental Study of Bond-slip Performance Between Steel and Concrete in SRC Structures[J].Engineering Mechanics,2003,20(5):63-69.
[9]杨 勇,郭子雄,薛建阳,等.型钢混凝土粘结滑移性能试验研究[J].建筑结构学报,2005,26(4):1-9. YANG Yong,GUO Zi-xiong,XUE Jian-yang,et al.Experiment Study on Bond Slip Behavior Between Section Steel and Concrete in SRC Structures[J].Journal of Building Structures,2005,26(4):1-9.
[10]李 红,刘伯权,吴 涛,等.T型钢与混凝土粘结滑移破坏机理研究[J].四川建筑科学研究,2010,36(5):45-48. LI Hong,LIU Bo-quan,WU Tao,et al.Failure Mechanism Study on the Bond-slip Between T Section Steel and Concrete in SRC Structures[J].Sichuan Building Science,2010,36(5):45-48.
[11]王 军.内配格构式角钢圆钢管混凝土力学性能研究及应用[D].杭州:浙江大学,2018. WANG Jun.Research and Application on the Mechanical Properties of Concrete-filled Circular Steel Tubes with Latticed Steel Angles Inside[D].Hangzhou:Zhejiang University,2018.
[12]邓文琴,张建东,刘 朵,等.角钢剪力连接件力学性能推出试验研究[J].建筑结构学报,2015,36(增1):389-395. DENG Wen-qin,ZHANG Jian-dong,LIU Duo,et al.Push-out Test Research on Mechanical Property of Angle Connector[J].Journal of Building Structures,2015,36(S1):389-395.
[13]SCHNEIDER S P.Axially Loaded Concrete-filled Steel Tubes[J].Journal of Structural Engineering,1998,124(10):1125-1138.
[14]康希良,程耀芳,涂 昀,等.钢管混凝土粘结-滑移性能试验研究及数值分析[J].工程力学,2010,27(9):102-106. KANG Xi-liang,CHENG Yao-fang,TU Yun,et al.Experimental Study and Numerical Analysis of Bond-slip Performance for Concrete Filled Steel Tube[J].Engineering Mechanics,2010,27(9):102-106.
[15]王 振,张 宁.钢管混凝土的界面黏结-滑移性能数值分析研究[J].中外公路,2018,38(1):192-200. WANG Zhen,ZHANG Ning.Numerical Analysis on Bond-slip Behavior of Concrete-filled Steel Tubes[J].Journal of China & Foreign Highway,2018,38(1):192-200.
[16]赵卫平,朱彬荣.高温后HSC粘结滑移基础参数测量与3D有限元数值模拟[J].工程力学,2017,34(4):177-186. ZHAO Wei-ping,ZHU Bin-rong.Basic Parameters Test and 3D Modelling of Bond in HSC After Elevated Temperatures[J].Engineering Mechanics,2017,34(4):177-186.
[17]郑山锁,李 磊.型钢高强高性能混凝土结构基本性能与设计[M].北京:科学出版社,2012. ZHENG Shan-suo,LI Lei.The Basic Property and Design of Steel Reinforced High Strength and High Performance Concrete[M].Beijing:Science Press,2012.
[18]孙宏友.基于正交试验法的透水混凝土配合比设计和试验研究[D].成都:西南交通大学,2016. SUN Hong-you.Experimental Research and Mix Proportion Design of Porous Concrete Based on Orthogonal Test Method[D].Chengdu:Southwest Jiaotong University,2016.
[19]应武挡,陈宗平.型钢高强混凝土界面黏结传力机理及影响因素分析[J].土木工程学报,2016,49(9):53-63,71. YING Wu-dang,CHEN Zong-ping.Interface Bond Force Transfer Mechanisms and Its Influence Analysis Between Shape Steel and High-strength Concrete[J].China Civil Engineering Journal,2016,49(9):53-63,71.
[20]GB 50010—2010,混凝土结构设计规范[S]. GB 50010—2010,Code for Design of Concrete Structures[S].
[21]BEHNOOD A,GHANDEHARI M.Comparison of Compressive and Splitting Tensile Strength of High-strength Concrete with and Without Polypropylene Fibers Heated to High Temperatures[J].Fire Safety Journal,2009,44(8):1015-1022.
[22]赵卫平.基于ANSYS接触分析的粘结-滑移数值模拟[J].建筑科学与工程学报,2011,28(2):44-51. ZHAO Wei-ping.Bond-slip Numerical Simulation Based on ANSYS Contact Analysis[J].Journal of Architecture and Civil Engineering,2011,28(2):44-51.
[23]LUNDGREN K.Pull-out Tests of Steel-encased Specimens Subjected to Reversed Cyclic Loading[J].Materials and Structures,2000,33(7):450-456.
[24]LEE C,LEE S,SHIN S.Modeling of Transfer Region with Local Bond-slip Relationships[J].ACI Structural Journal,2017,114(1):187-196.

相似文献/References:

备注/Memo

备注/Memo:

收稿日期:2020-02-26 基金项目:国家自然科学基金项目(51474218); 中央高校基本科研业务费优秀青年教师项目(2020YQLJ04) 作者简介:赵卫平(1981-),男,河北石家庄人,副教授,工学博士,E-mail:weipingzhao163@163.com。

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