| 摘要(英) |
In this research, focus on non-linear behavior of concrete by using concept of “Equivalent Uniaxial Strain” proposed by Darwin & Pecknold and concept of “Hypo-plastic Model” proposed by Balan, concept of “Equivalent uniaxial strain” degenerate muti-axial which react upon each other into multiple uniaxial, also simplify mathematic calculation. Though, in traditional plastic mechanics, flow rule and hardening rule commonly use plastic material model, those rules are not used in hypo-plastic model. Method of this research is different from traditional way. Hypo-plastic model can be classified into two parts, one is “Ultimate Surface”, the other one is “Equivalent uniaxial strain envelope”. In regard of using ultimate surface model, choose Willam-Warnke which revised by Menetrey & Willam and named Menetrey-Willam Model. Meanwhile, in consideration of ultimate strength in tri-axial compress, we adding “Cap Model” to revise and named this model “Closed Menetrey-Willam” model, this contain both meridian and cap model. Second part of hypo- plastic model is using Equivalent uniaxial strain envelope of concrete proposed by Saenz. In this study, uniaxial, biaxial, tri-axial experiments are applied to verify analysis. Especially tri-axial loading test, because of loading path along three principal directions, strength of concrete will be lifted up to another level, in order to solve this, propose a method of revising failure surface to predict ultimate state in tri-axial loading test. |
| 參考文獻 |
[1] Balan T. A., Spacone E., Kwon M., A 3D hypoplasticmodel for cyclic analysis of concrete structures, Computers & Structures, 23, 2001, pp 333-342.
[2] Li T, Crouch R. A C2 plasticity model for structural concrete. Computers &Structure 2010; 88: 1322–32.
[3] 張鈴菀, “向量式有限元分析法於鋼筋混凝土結構非線性行為之應用,” 臺灣國立中央大學碩士論文, 2009.
[4] 賴昱儒, “混凝土結構分析之三維等效單軸應變組成材料模型”, 臺灣國立
中央大學碩士論文,2014.
[5] 王國昌,”混凝土結構之非線性不連續變形分析” 臺灣國立中央大學博士 論文, 2004.
[6] Xiaobin Lu, ”Uniaxial and tri-axial behavior of high strength concrete with and without steel fibers” New Jersey Institute of Technology in Partial Fulfillment of the Requirements for the Degree of Doctor of Philosophy in Civil Engineering, 2005.
[7] Chen, W. F. , “Plasticity for structural Engineers”, 1988.
[8] Willam, K, J and Warnke, E. P. , “Constitutive Model for the Tri-axial Behavior of Concrete,” Concrete Structures Subjected to Tri-axial Stresses, International Association for Bridges and Structural Engineering, Bergamo, Italy, 1974.
[9] Menetrey, P. H. , and Willam, K. J. , “Tri-axial Failure Criterion for Concrete and Its Generalization”, ACI Structural Journal, 1995;92:311-8
[10] Klisinski, M., ”Degradation and Plastic Deformation of Concrete,” IFTR Report 38, PhD
thesis, Polish Academy of Science, 1985
[11] Kolymbas, D. ”An outline of hypo-plasticity” Arch Appl Mech 1991:6;143-51
[12] Mordini, A., “Three Dimension Numerical Modeling of RC Behavior,” PhD thesis,
University of Parma, Italy, 2006.
[13] Pisano, A.A., Fuschi, P., and De Domenico, D., “A Kinematic Approach for Peak Load
Evaluation of Concrete Elements,” Computers and Structures, 2013; 119:125-139.
[14] Kupfer, H.B., and Gerstle, K.H., 1973, “Behavior of Concrete under Biaxial Stresses,” Journal of the Engineering Mechanics Division, Vol.99, pp. 853-866.
[15] Ottosen, N.S., “Constitutive Model for Short-Time Loading of Concrete,” Journal of the Engineering Mechanics Division, 1979;105(1):127-141
[16] Darwin, D., and Pecknold, D.A., “Nonlinear Biaxial Stress-Strain Law for Concrete,” ASCE, 1977;103(2):229-241.
[17] Bazant, Z.P., and Kim S.S., “Plastic-Fracturing Theory for Concrete,” Journal of the Engineering Mechanics Division, 1979;105(3):407-428.
[18] Saenz, I.P., ”Discussion of equation for the stress-strain curve of concrete, by P. Desay and S. Krishan” ACI Journal:61(9):1229-35.
[19] Saenz, I.P., “Equation for stress-strain Curve of Concrete,” Journal Proceeding ACI, Vol.66, No.9, pp.1229-1235, 1964.
[20] Ottosen N. S. and Ristinmaa M. , “The Mechanics of Constitutive Modeling, Elsevier, 2005.
[21] Hoek, E., and Brown, E. T., "Empirical Strength Criterion for Rock Masses," Journal of the Geotechnical Engineering Division, V. 106, No. GT9, 1980, pp. 1013-1035.
[22] Linse, D., and H. Aschl,“ Versuche zum Verhalten von Beton unter mehrachsiger Beanspruchung,“ test report, TU München, 1976
[23] Bazant, Z. P. and Shieh, C.L., ”Endochronic Model for Nonlinear Triaxial Behavior of Concrete,” Nuclear Engineering and Design, Vol. 47, pp. 305-315, 1978. |
[Endnote RIS 格式]
[相關文章]
[文章引用]
[完整記錄]
[館藏目錄]
[檢視]
plurk
funp
live
udn
HD
myshare
netvibes
friend
youpush
delicious
baidu
Google bookmarks
del.icio.us
hemidemi
facebook
twitter
google
reddit