EVALUATION OF THERMAL SRESSES IN CONTINOUOS CONCRETE BRIDGES
محتوى المقالة الرئيسي
الملخص
This search is mainly concerned with making a comparison between three methods for analyzing
continuous concrete bridges, Priestly, Abdul-Ahad and finite elements. Three standard Design
temperature distribution, New Zealand, AASHTO and British (5400) were used to analyze the
concrete bridges in Baghdad. The analysis of two continues precast prestressed concrete bridges in
Baghdad are presented. Another comparison as made between the thermal stresses and the stress
associated with dead and live loads. Analytical results indicated that stresses and curvature values
are very sensitive to the type of temperature distribution assumed. The suggested analytical models
for the bridge can be used to be predict thermal movement and stresses due to any shape of
temperature distribution.
تفاصيل المقالة
كيفية الاقتباس
تواريخ المنشور
المراجع
Emanuel, J.H. , (1978), Temperature Distributions in Composite Bridges., Journal of the Structural Division ASCE, Vol.140, No.ST1, Jan., pp.65-77.
Rodolli, M., and Green, R., (1975), Thermal Stresses in Concrete Bridge Superstructures Under Summer Conditions., Presented at the 54th Anual Meeting, Transportation Research Board, Washington, D.C., Jan., pp.23-36.
Johns, D.J., (1965), Thermal Stress Analysis., First Edition, Robert, Maxwell, M.C., M.P., New York, , pp.1-5.
Cope, R.J., (1987), Concrete Bridge Engineering Performance and Advances., ELSEVIER Applied Science Publishers Ltd., London, , pp.143-184.
Emerson, M., (1981), Thermal Movements of Concrete Bridges: Field Measurements and Methods of Prediction., Volume1, World congress on Joints and Bearings, Publication sp-70, American Concrete Institute, Detroit, , pp.77-94.
Roland, L.P. and Roland, H.B., (1983), Bridge Joint Maintenance., National Research Council, National Academy of Sciences, Washington, , pp.1-10.
Priestly, M.J.N., (1978), Design of Concrete Bridges for Temperature Gradients., American Concrete Institute, ACI, Journal, No.75, May, pp.209-217.
Abdul-ahad, R.B., (1981), Effects of Restrained Thermal Movement in A Continuous Prestressed Concrete Bridge Without Interior Expansion Joints., ThesisPresented to the University of Tennessee, at Knoxville, Tennessee, in, in Partial Fulfillment of the Requirements for the Degree of Doctor of Philosophy, with a major in Civil Engineering.