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不含预设裂缝的钢筋混凝土梁的数值仿真

DOI: 10.3969/j.issn.1674-0696.2014.06.03, PP. 9-12

Keywords: 桥梁工程,四点弯曲,非线性分析,裂纹扩展,bridgeengineering,fourpointsbending,nonlinearanalysis,crackgrowth

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Abstract:

:?设计了一种不含预设裂缝的钢筋混凝土适筋梁,在承受四点弯曲的作用下,通过非线性和XFEM有限元算法进行了仿真计算。两种方法对于适筋梁的计算结果都是有效的,非线性结果应力变形的变化符合材料的本构关系;基于XFEM的计算更接近于真实情况。尝试了对不含预设裂缝钢筋混凝土梁的模拟,即在断裂力学的判断准则下裂缝的数量和位置都是随机的;在混凝土开裂后裂缝的扩展趋势与实际情况符合并且梁在最终破坏时受拉钢筋和受压钢筋全部达到拉压极限,与适筋梁的设计要求相符。

References

[1]  Shen Pusheng.Theory of Concrete Structure Design[M].Beijing:Higher Education Press,2002.
[2]  [3] Zienkiewicz O C,Taylor R L .The Finite Element Method [M].4th ed.Beijing:Tsinghua University Press,2006.
[3]  [4] Hillerborg A,Moder M,Peterson P E.Analysis of crack formation and crack growth in concrete by means of fracture mechanics and finite elements[J].Cement and Concrete Research,1976,6(6):773-781.
[4]  [5] 方修君,金峰.基于ABAQUS平台的扩展有限元法[J].工程力学,2007,24(7):6-10.
[5]  Fang Xiujun,Jin Feng.Extended finite element method based on ABAQUS[J].Engineering Mechanics,2007,24(7):6-10.
[6]  [6] 徐芝纶.弹性力学[M].北京:高等教育出版社,2006.
[7]  Xu Zhilun.Elasticity[M].Beijing:Higher Education Press,2006.
[8]  [8] 庄茁,柳占立,成彬彬,等.扩展有限单元法[M].北京:清华大学出版社,2012.
[9]  [10]Meschke G,Dumstorff P.Energy-based modeling of cohesive and cohesionless cracks via X-FEM[J].Computer Methods in Applied Mechanics and Engineering,2007,196(21/24):2338-2357.
[10]  [7] Giner E,Sukumar N,Tarancon J E,et al.An Abaqus implementation of the extended finite element method[J].Engineering Fracture Mechanics,2009,76(3):347-368.
[11]  Zhuang Zhuo,Liu Zhanli,Cheng Binbin,et al.Extend Finite Element Method [M].Beijing:Tsinghua University Press,2012.
[12]  [9] Ribeaucourt R,Baietto-Dubourg M C,Gravouil A.A new fatigue frictional contact crack propagation model with the coupled X-FEM/LATIN method[J].Computer Methods in Applied Mechanics and Engineering,2007,196(33/34):3230-3247.
[13]  [1] Tada H,Press A ,Paris P C.Stress Analysis of Cracks Handbook[M].3rd ed.New York:ASME Press,1985.
[14]  [2] 沈蒲生.混凝土结构设计原理[M].北京:高等教育出版社,2002.

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