Maximum Crack Width Prediction in Deck Slab Concrete Structure
Inspection of crack width prediction procedures proposed by various researchers indicates that each formula contains a different set of variables. A literature review also suggests that there is no general agreement among various researchers on the relative significance of different variables affecting the crack width, despite the large number of experimental work carried out during the past few decades. An analytical method is developed to determine the concrete stress distribution near flexural cracks in reinforced concrete one-way slabs and used to investigate the effects of various variables on the spacing and width of cracks. The formula is developed using a large number of curvature values calculated from the concrete and steel strains at various sections between adjacent cracks for a number of composite precast deck slabs. The present method of incorporating the tension stiffening effect is verified by comparing calculated fracture mechanic and those measured by other investigators. The curvature values at sections between adjacent cracks are calculated using an empirical formula. Development of this formula is based on the curvature values calculated using the concrete and steel strains at various sections between successive cracks, for a number of composite precast deck slabs. Using the curvature values evaluated by the proposed formula, short-term deflections were determined for a large number of flexural members and the results were compared with those measured by other investigators. This comparison indicated that the present method of incorporating the tension stiffening effect in fracture mechanic calculations is acceptable.
. AASHTO LRFD, “Bridge Design Specification”, Second Edition, American Association of State Highway and Transportation Officials, Washington D.C,1998.
. ACI Committee 224, “Control of Cracking in Concrete Structures”, ACI Journal, Proceedings, Vol. 69, No. 12, 1972.
. ACI 318-89, “Building Code Requirements for Reinforced Concrete”, 5th , PCA, Detroit, Michigan, 1990.
. ACI Committee 318, “Building Code Requirements for Structural Concrete”,.Farmington Hills, 1995.
. Al-Shaikh, A. H. and Al-Zaid, R. Z., “Effect of Reinforcement Ratio on the Effective Moment of Inertia of Reinforced Concrete Beams”, ACI Structural Journal, Vol. 90, No. 2, 1993.
. Agoes Soehardjono MD, “The Influence of Reinforcement Ratio () and Repeated Loading (N) to Crack Width (w) of One Way Slab”, Dissertation, Civil Enginering ITS, Surabaya, Indonesia, 2006.
. Barker, RM dan Puckett, JA, “Design of Highway Bridges Based On AASHTO LRFD”, John Wiley & Sons Inc, New York, 1997.
. Broek D, “The Practical Use of Fracture Mechanics”, 2nd Edition, Kluwer Academic Publishers, London., 1989.
. Callister, WD, Jr, “Material Science and Engineering an Introduction”, Fourth Edition, John Wiley & Sons Inc, New York. , 1997.
. Carpinteri, Alberto, “Applications of Fracture Mechanics to Reinforced Concrete”, Elsevier Applied Science, Turin, Italy, 1990.
. Ellyn F, “Fatigue Damage, Crack Growth and Life Prediction”, Chapman & Hall, New York., 1997.
. Esfahani, M. R. and Rangan, B. V, ”Local Bond Strength of Reinforcing Bars in Normal Strength and High-Strength Concrete (HSC) ”, ACI Structural Journal, Vol. 95, No. 2, 1998, pp 96 - 106
. Giuriani, E. and Plizzari, G. A, ”Interrelation of Splitting and Flexural Cracks in RC Beams, Journal of the Structural Engineering”, American Society of Civil Engineers, Vol. 124, No. 9,1998.
. Joseph A. Wallenfelsz, ”Horizontal Shear Transfer for full-Depth Precast Concrete Bridge Deck Panels”, Master Thesis, Virginia Polytechnic Institute and State University., 2006.
. Lan, Z. and Ding, D,”Crack Width in Reinforced Concrete Members”, International Journal of Structures, Vol. 12, No. 2, 1992.
. New Zealand Standard 3101, ”Code of Practice for The Design of Concrete Structures”, Standard Association of New Zealand part 1, 1982
. Oh, B. H. and Kang, Y., ”New Formulas for Maximum Crack Width and Crack Spacing in Reinforced Concrete Flexural Members”, ACI Structural Journal, Vol. 84, No. 2,1987.
. Park, R., Kent, D. C., dan Sampson, R. A, ”Reinforced Concrete Members with Cyclic Loading, Journal of the Structural Division”, Proceeding of the ASCE, vol. 98, no. ST7,1972.
. Park, R dan Gamble, W.L, ”Reinforced Concrete Slabs”, John Wiley & Sons, Inc, A Wiley-Interscience Publication. , 1980
. Park, R dan Paulay, T, Reinforced Concrete Structures, John Wiley & Sons, Inc, Canada, USA. , 1975
. Ratnamudigedara Piyasena, ”Crack Spacing, Crack Width and tension Stiffening Effect in Reinforced Concrete Beams and One Way Slab”, Dissertation Doctor of Philosophy, Gold Coast Campus Griffith University. , 2002
. Standards Australia (AS 3600), ”Concrete Structures”, Standards Association of Australia, Sydney, Australia2001.
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