Cost Optimization of Prestressed Concrete Bridges
Publication: Journal of Structural Engineering
Volume 131, Issue 3
Abstract
According to the Federal Highway Administration, almost one-quarter of the more than one-half-million U.S. bridges make use of prestressed concrete beams in their designs. In this paper, a method is presented for the total cost optimization of precast, prestressed concrete -beam bridge systems, by taking into account the costs of the prestressed concrete, deck concrete, prestressed -beam steel, deck reinforcing steel, and formwork. The problem is formulated as a mixed integer-discrete nonlinear programming problem and solved using the robust neural dynamics model of Adeli and Park. An example is presented to demonstrate the practical application of the methodology. Typical network convergence curves using three different network starting points demonstrate the excellent convergence and the robustness of the optimization model presented in this paper.
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References
Adeli, H. (2001). “Neural networks in civil engineering: 1989–2000.” Comput. Aided Civ. Infrastruct. Eng., 16(2), 126–142.
Adeli, H., and Park, H. S. (1995a). “Optimization of space structures by neural dynamics model.” Neural Networks, 8(5), 796–781.
Adeli, H., and Park, H. S. (1995b). “Counterpropagation neural network in structural engineering.” J. Struct. Eng., 121(8), 1205–1212.
Adeli, H., and Park, H. S. (1996). “Hybrid CPN-neural dynamics model for discrete optimization of steel structures.” Microcomput. Civ. Eng., 11, 355–366.
Adeli, H., and Karim, A. (1997). “Scheduling/cost optimization and neural dynamics model for construction.” J. Constr. Eng. Manage., 123(4), 450–458.
Adeli, H., and Park, H. S. (1998). Neurocomputing for design automation, CRC Press, Boca Raton, Fla.
Adeli, H., and Kumar, S. (1999). Distributed computer-aided engineering for analysis, design, and visualization, CRC Press, Boca Raton, Fla.
Adeli, H., and Saleh, A. (1999). Control, optimization, and smart structures—High-performance bridges and buildings of the future, Wiley, New York.
Adeli, H., and Soegiarso, R. (1999). High-performance computing in structural engineering, CRC Press, Boca Raton, Fla.
Adeli, H., and Karim, A. (2001). Construction scheduling, cost optimization, and management—A new model based on neurocomputing and object technologies, Spon Press, London.
Adeli, H., and Kim, H. (2001). “Cost optimization of composite floors using the neural dynamics model.” Commun. Numer. Methods Eng., 17, 771–787.
American Association of State Highway and Transportation Officials (AASHTO). (1999). Standard specifications, Washington, D.C.
Federal Highway Administration (FHWA). (2000). “National Bridge inventory.” Federal Highway Administration Policy Memorandum, United States Department of Transportation, Washington, D.C.
Karim, A., and Adeli, H. (2000). “Global optimum design of cold-formed steel -shape beams.” Pract. Period. Struct. Des. Constr., 5(2), 78–81.
Lounis, Z., and Cohn, M. Z. (1993). “Optimization of precast prestressed concrete bridge girder systems.” PCI J., 38(4), 60–78.
Ohio Department of Transportation (ODOT). (2000a). Summary of Contracts, ODOT, Columbus, Ohio.
Ohio Department of Transportation (ODOT). (2000b). Bridge Design Manual, ODOT, Columbus, Ohio.
Park, H. S., and Adeli, H. (1997). “Distrubuted neural dynamics algorithm for optimization of large steel structures.” J. Struct. Eng., 123(7), 880–888.
Precast/Prestressed Concrete Institute (PCI ). (1997). Bridge design manual, PCI, Chicago.
Precast/Prestressed Concrete Institute (PCI ). (1999). PCI design handbook, 5th Ed., PCI, Chicago.
Ringertz, U. T. (1988). “On methods for discrete structural optimization.” Eng. Optimiz., 13, 47–64.
Sarma, K. C., and Adeli, H. (1998). “Cost optimization of concrete structures.” J. Struct. Eng., 124(5), 570–579.
Sarma, K., and Adeli, H. (2000). “Fuzzy discrete multicriteria cost optimization of steel structures.” J. Struct. Eng., 126(11), 1339–1347.
Sarma, K. C., and Adeli, H. (2001). “Bilevel parallel genetic algorithms for optimization of large steel structures.” Comput. Aided Civ. Infrastruct. Eng., 16(5), 295–304.
Sarma, K. C., and Adeli, H. (2002). “Life-cycle cost optimization of steel structures.” Int. J. Numer. Methods Eng., 55(12), 1451–1462.
Tashakori, A. R. and Adeli, H. . (2002). “Optimum design of cold-formed steel space structures using neural dynamic model.” J. Constr. Steel Res.58(12), 1545–1566.
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© 2005 ASCE.
History
Received: Sep 19, 2002
Accepted: Aug 23, 2004
Published online: Mar 1, 2005
Published in print: Mar 2005
Notes
Note. Associate Editor: Christopher M. Foley
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