|本期目录/Table of Contents|

[1]易伟建,罗先明.变形钢筋与混凝土黏结性能数值模拟与计算[J].建筑科学与工程学报,2021,38(03):1-12.[doi:10.19815/j.jace.2021.01048]
 YI Wei-jian,LUO Xian-ming.Numerical Simulation and Calculation of Bond Performance Between Deformed Bar and Concrete[J].Journal of Architecture and Civil Engineering,2021,38(03):1-12.[doi:10.19815/j.jace.2021.01048]
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变形钢筋与混凝土黏结性能数值模拟与计算(PDF)
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《建筑科学与工程学报》[ISSN:1673-2049/CN:61-1442/TU]

卷:
38卷
期数:
2021年03期
页码:
1-12
栏目:
出版日期:
2021-05-25

文章信息/Info

Title:
Numerical Simulation and Calculation of Bond Performance Between Deformed Bar and Concrete
作者:
易伟建,罗先明
(湖南大学 土木工程学院,湖南 长沙 410082))
Author(s):
YI Wei-jian, LUO Xian-ming
(College of Civil Engineering, Hunan University, Changsha 410082, Hunan, China)
关键词:
黏结性能 黏结-滑移本构关系 递推迭代计算 锚固长度 平均黏结强度
Keywords:
bond performance bond-slip constitutive relation recursion and iteration calculation anchorage length mean bond strength
分类号:
TU375
DOI:
10.19815/j.jace.2021.01048
文献标志码:
A
摘要:
对现有的几种钢筋混凝土黏结-滑移本构关系进行比较和分析,并选用一种包含构件约束条件且在函数形式上连续的黏结-滑移本构关系。将构件沿钢筋锚固长度方向划分成有限个微段,并采用递推迭代的数值计算方法,使沿着钢筋长度方向的每一微段都满足该本构关系,通过反复迭代使沿锚固长度方向的钢筋应力及黏结应力满足边界条件,从而得到每一滑移对应的钢筋应力,比较快速且方便计算求得构件的荷载-位移响应曲线。为验证本构关系的正确性及计算方法的合理性,使用该本构关系及计算方法对几组试验数据进行了计算与比较验证。对各国规范的锚固长度计算公式及迭代计算的锚固长度进行了变量分析并进行比较。结果表明:计算结果与试验结果吻合良好; 选用的本构关系函数具有连续性,使得迭代能够稳定收敛,且由于计算的高效性,容易计算得到既定条件下的钢筋极限锚固长度; 各国规范计算锚固长度均偏于安全,但中国规范安全储备最低。
Abstract:
Several existing reinforced concrete bond-slip constitutive relationships were compared and analyzed, and a continuous bond-slip constitutive relation with constraints condition was selected.The component was divided into finite micro-segments along the anchorage length, and the recursive and iterative numerical calculation method was used to make each small segment meet the constitutive relationship, through repeated iterations, the reinforcement stress and bond stress along the anchorage length met the boundary conditions, and the corresponding reinforcement stress under each slip was obtained. It was convenient to calculate the load-displacement response curve. In order to verify the correctness of the constitutive relation and the rationality of the calculation method, several groups of experimental data were compared. The calculation formula of anchorage length and the iterative calculation of anchorage length in different codes were analyzed and compared. The results show that the calculation results are in good agreement with the experimental data. Due to the continuity of the selected constitutive relation function, the iteration can converge stably, and due to the high efficiency, it is easy to calculate the ultimate anchorage length of the reinforcement under given conditions. All the calculation of anchorage length is safe, but the safety reserve of China is the lowest.

参考文献/References:

[1] MAINS R M.Measurement of the Distribution of Tensile and Bond Stresses Along Reinforcing Bars[J].ACI Journal of Proceedings,1951,48(11):225-252.
[2]李 宏,付恒菁.钢筋混凝土框架边节点粘结锚固计算分析[J].西安建筑科技大学学报,1998,30(2):130-133.
LI Hong,FU Heng-jing.Calculating Analysis on the Anchorage Bond of Exterior Beam-column Joint[J].Journal of Xi'an University of Architecture & Technology,1998,30(2):130-133.
[3]ABRISHAMI H H,MITCHELL D.Analysis of Bond Stress Distributions in Pullout Specimens[J].Journal of Structural Engineering,1996,122(3):255-261.
[4]TASTANI S P,PANTAZOPOULOU S J.Reinforcement and Concrete Bond:State Determination Along the Development Length[J].Journal of Structural Engineering,2013,139(9):1567-1581.
[5]CIAMPI V,ELIGEHAUSEN R,BERTERO V V,et al.Analytical Model for Concrete Anchorages of Reinforcing Bars Under Generalized Excitations[R].Berkeley:University of California,1982.
[6]FILIPPOU F C.A Simple Model for Reinforcing Bar Anchorages Under Cyclic Excitations[J].Journal of Structural Engineering,1986,112(7):1639-1659.
[7]徐有邻.变形钢筋-混凝土粘结锚固性能的试验研究[D].北京:清华大学,1990.
XU You-lin.Experimental Study on Bond Capability Between Deformed Reinforcement Concrete[D].Beijing:Tsinghua University,1990.
[8]SHIMA H,CHOU L,OKAMURA H.Micro and Macro Models for Bond in Reinforced Concrete[J].Journal of the Faculty of Engineering,1987,39(2):133-194.
[9]SOMAYAJI S,SHAH S P.Bond Stress Versus Slip Relationship and Cracking Response of Tension Members[J].Journal of the American Concrete Institute,1981,78(3):217-225.
[10]GB 50010—2010,混凝土结构设计规范[S].
GB 50010—2010,Code for Design of Concrete Structures[S].
[11]CEB-FIP,Fib Model Code for Concrete Structures 2010[S].
[12]LIN H W,ZHAO Y X,OZBOLT J,et al.Analytical Model for the Bond Stress-slip Relationship of Deformed Bars in Normal Strength Concrete[J].Construction and Building Materials,2019,198:570-586.
[13]ELIGEHAUSEN R,POPOV E P,BERTERO V V.Local Bond Stress-slip Relationships of Deformed Bars Under Generalized Excitations[R].Berkeley:University of California,1983.
[14]WU Y F,ZHAO X M.Unified Bond Stress-slip Model for Reinforced Concrete[J].Journal of Structural Engineering,2013,139(11):1951-1962.
[15]毛达岭.HRB500钢筋粘结锚固性能的试验研究[D].郑州:郑州大学,2004.
MAO Da-ling.Experimental Study on Bond Anchorage Performance of HRB500 Steel Bar[D].Zhengzhou:Zhengzhou University,2004.
[16]牛旭宁.600 MPa级热轧带肋钢筋粘结锚固性能试验研究[D].天津:河北工业大学,2015.
NIU Xu-ning.Bond-anchorage Capability Experimental Research on 600 MPa Hot-ribbed Steel Bar[D].Tianjin:Hebei University of Technology,2015.
[17]HARAJLI M H,HAMAD B S,RTEIL A A.Effect of Confinement on Bond Strength Between Steel Bars and Concrete[J].ACI Structural Journal,2004,101(5):595-603.
[18]ACI 318-19,Building Code Requirements for Structural Concrete and Commentary[S].
[19]ACI 408R-03,Bond and Development of Straight Reinforcing Bars in Tension[S].
[20]GAMBAROVA P G,PLIZZARI G A,BALAZS G L,et al.Bond of Reinforcement in Concrete[R].Stuttgart:International Federation for Structural Concrete,2000.
[21]MAHRENHOLTZ C,SHARMA A.Development Length of Deformed Reinforcing Bars — A Worldwide Review[J].ACI Materials Journal,2020,117(5):125-134.
[22]TASTANI S P,BROKALAKI E,PANTAZOPOULOU S J.State of Bond along Lap Splices[J].Journal of Structural Engineering,2015,141(10):04015007.

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备注/Memo

备注/Memo:
收稿日期:2021-01-19
基金项目:国家自然科学基金项目(51878260)
作者简介:易伟建(1956-),男,湖南黔阳人,教授,博士研究生导师,工学博士,E-mail:wjyi@hnu.cn。
更新日期/Last Update: 2021-05-20