|Table of Contents|

Solution of slip effect of steel-concrete composite beam with variational principles(PDF)

长安大学学报（自然科学版）[ISSN:1006-6977/CN:61-1281/TN]

Issue:
2013年01期
Page:
39-44
Research Field:
桥梁与隧道工程
Publishing date:

Info

Title:
Solution of slip effect of steel-concrete composite beam with variational principles
Author(s):
ZHOU Yong-chao1;  LI Liang-liang2;  LI Zi-qing1
1. School of Highway, Chang'an University, Xi'an 710064, Shaanxi, China; 2. Zhejiang Provincial Institute of Communications Planning, Design & Research, Hangzhou 310006, Zhejiang, China
Keywords:
bridge engineering;  steel-concrete composite beam;  the principle of minimum potential energy;  variational method;  interfacial slip;  additional bending moment
PACS:
U441.2
DOI:
-
Abstract:
In order to solve the simple steel-concrete composite beam interface slip effect, the balance equation was built with the theory of elasticity. The analytic expressions of interface slip and deformation, which were caused by point load or distributed load, were derived by using the principle of minimum potential energy and variational method. The method for calculating additional bending moment was derived, too. The results show that the method unifies the basic form of the relative slip differential equation. Additional moment has nothing to do with the amount relative slip, while it is proportional to the trend of relative slip. Relative slip is associated with anti-slip and the cross-section shear, and will increase the deflection of composite beam. While the maximum interfacial slip is at the end of beam and decreases to zero at the mid-span. The suggested formulas are in good agreement with the measured results. 7 figs, 15 refs.

References:

[1] 聂建国,李 勇,余志武,等.钢—混凝土组合梁刚度的研究[J].清华大学学报:自然科学版,1998,38(10):38-41. NIE Jian-guo,LI Yong,YU Zhi-wu,et al.Study on short and long-term rigidity of composite[J].Journal of Tsinghua University:Science and Technology,1998,38(10):38-41.(in Chinese)
[2]Liang Q Q,Brian U Y,Bradford M A,et al.Strength analysis of steel-concrete composite beams in combined bending and shear[J].Journal of Structural Engineering,2005,131(10):1593-1600.
[3]Sameh S B,Amgad F M G,Maher K T,et al.Full-scale testing for composite slab/beam systems made with extended stud spacing[J].Journal of Bridge Engineering,2011,16(5):653-661.
[4]Gunup K,Michael D E,Richard E K.Experimental behavior of bridge beams retrofitted with postinstalled shear connectors[J].Journal of Bridge Engineering,2011,16(4):536-545.
[5] Andrea D A,Alessandro Z.Finite element model for externally prestressed composite beams with deformable connection[J].Journal of Structural Engineering,2005,131(5):706-714.
[6]聂建国,沈聚敏.滑移效应对钢-混凝土组合梁弯曲强度的影响及其计算[J].土木工程学报,1997,30(1):31-36. NIE Jian-guo,SHEN Ju-min.Slip effect on strength or composite steel-gongrete beams[J].China Civil Engineering Journal,1997,30(1):31-36.(in Chinese)
[7] 孙飞飞,李国强.考虑滑移、剪力滞后和剪切变形的钢-混凝土组合梁解析解[J].工程力学,2005,22(2):96-103. SUN Fei-fei,LI Guo-qiang.A closed-form solution for steel-concrete composite beams with slip,shear lag and shear deformation[J].Engineering Mechanics,2005,22(2):96-103.(in Chinese)
[8]余志武,蒋丽忠,李 佳.集中荷载作用下钢-混凝土组合梁界面滑移及变形[J].土木工程学报,2003,36(8):1-6. YU Zhi-wu,JIANG Li-zhong,LI Jia.The interface slip and deformation of steel-concrete conposite beams under concentrated loads[J].China Civil Engineering Journal,2003,36(8):1-6.(in Chinese)
[9]胡夏闽,薛 伟,曹雪娇.钢-混凝土组合梁挠度计算的附加曲率法[J].建筑结构学报,2010(增1):385-389. HU Xia-min,XUE Wei,CAO Xue-jiao.The additional curvature method for calculating deflection of composite steel-concrete beams[J].Journal of Building Structures,2010(S1):385-389.(in Chinese)
[10]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.(in Chinese)
[11]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.(in Chinese)
[12]Simon S,Miran S,Goran T,et al.Analytical solution of two-layer beam taking into account interlayer slip and shear deformation[J].Journal of Structural Engineering,2007,133(6):886-894.
[13]Paolo F.Analytical solution of two-layer beam taking into account nonlinear interlayer slip[J].Journal of Engineering Mechanics,2009,135(10):1129-1146.
[14]Rongqiao X,Dequan C.Variational principles of partial-interaction composite beams[J].Journal of Engineering Mechanics,2012,138(5):542-551.
[15]周凌宇,余志武,蒋丽忠.钢-混凝土组合梁界面滑移剪切变形的双重效应分析[J].工程力学,2005,22(2):104-109. ZHOU Ling-yu,YU Zhi-wu,JIANG Li-zhong.Analysis of composite beams of steel and concrete withslip and shear deformation[J].Gineering Mechanics,2005,22(2):104-109.(in Chinese)

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Last Update: 2013-02-20