Computer-Integrated System for Estimating the Costs of Building Projects
Publication: Journal of Architectural Engineering
Volume 13, Issue 4
Abstract
The cost estimate is considered one of the most important and critical phases of a construction project. Preparing reliable and accurate estimates to help decision makers is the most challenging assignment that cost engineers and estimators face. For decades, practitioners in the construction industry focused only on estimating the initial cost of a facility, neglecting costs associated with operating and maintaining it. Today, more interest lies in investigating the economics of facility management, which include the cost of owning and operating a building over its useful life. This paper presents a methodology that can be used for an integrated conceptual cost estimating and life-cycle cost analysis for construction projects during their initial phase. The methodology describes the development and implementation of a system that automates the preparation of parametric cost estimates and forecasts future running costs of building projects. The system integrates relational databases, a parametric cost estimate module, an AutoCAD module, a global module, a cost estimate forecasting and decision support system module, and a life cycle costing and sensitivity analysis module. The system will automatically generate a new parametric estimate upon any modification in building design. Once the capital costs are identified, the system forecasts the cost of running and maintaining the new building throughout its expected service life. After assigning the range of deviation, a sensitivity analysis is conducted, which identifies the most sensitive parameters for further consideration and analysis. Designing the system in a user-friendly environment allows owners and decision makers to envision the feasibility of new building projects within their anticipated life cycles. Moreover, it assists architects and cost engineers in generating parametric cost estimates in a dynamic environment. A numerical case example is presented to illustrate the usefulness and capabilities of the developed system.
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References
Abraham, D. M., and Dickinson, R. J. (1998). “Disposal costs for environmentally regulated facilities: LCC approach.” J. Constr. Eng. Manage., 124(2), 146–154.
Aouad, G., Kirkham, J., Brandon, P., Brown, F., Child, T., Cooper, G., Ford, S., Oxman, R., and Young, B. (1995). “The conceptual modeling of construction management information.” Autom. Constr., 3(4), 267–282.
Assaf, S. A., Al-Hammad, A., Jannadi, O. A., and Abu Saad, S. (2002). “Assessment of the problems of application of life cycle costing in construction projects.” Cost Eng., 44(2), 17–22.
Bajaj, A., Gransberg, D. D., and Grenz, D. M. (2002). “Parametric estimating for design costs.” Proc., Trans. American Association of Cost Engineers, 46th Annual Meeting, Portland, Ore., EST.08.1–EST.08.6.
Building Owners and Managers Association (BOMA). (2002). 2002 BOMA Experience Exchange Report, BOMA International.
Dell’Isola, A., and Kirk, S. (1995). Life cycle costing for design professionals, 2nd Ed., McGraw-Hill, New York.
Dunston, P. S., and Bernold, L. E. (2000). “Adaptive control for safe and quality rebar fabrication.” J. Constr. Eng. Manage., 126(2), 122–129.
Dysert, R. L. (1999). “Developing a parametric model for estimating process control costs.” Proc., Transactions of the American Association of Cost Engineers, 43rd Annual Meeting, Denver, EST.01.1–EST.01.4.
Ellsworth, K. R. (1998). “Cost-to-capacity analysis for estimating waste-to-energy facility costs.” Cost Eng., 40(6), 27–30.
Elmasri, R., and Navathe, S. B. (2000). Fundamentals of database systems, 3rd Ed., Addison-Wesley Longman, Inc., Reading, Mass.
Fuller, S. K., and Petersen, S. R. (1995). “Life-cycle costing manual for the federal energy management program.” NIST handbook 135, ⟨http://www.bfrl.nist.gov/oae/publications/handbooks/135.pdf⟩ (Feb. 10, 2004).
Hemiö, T., and Salonen, M. (2000). “Virtual reality: Human interface to product data.” CIT, Iceland, 457–464.
Karshenas, S. (1984). “Predesign cost estimating method for multistory buildings.” J. Constr. Eng. Manage., 110(1), 79–86.
Kibert, J. C., and Hollister, C. K. (1994). “An enhanced construction specific SQL.” Autom. Constr., 2(4), 303–312.
Kim, Y. S., Oh, S. W., Kim, J. R., and Sung, B. J. (2000). “The development of an automated system using 3D CAD and relational database.” Proc., 17th Symp. on Automation and Robotics in Construction XVII, Taiwan, 827–833.
Kunigahalli, R. (1997). “3D modeling for computer-integrated construction of RC structures.” J. Comput. Civ. Eng., 11(2), 92–101
Larson, D. P. (2002). “Conceptual estimating.” Proc., Transactions of the American Association of Cost Engineering, 46th Annual Meeting, Portland, Ore., EST.07.1–EST.07.3.
Lipman, R., and Reed, K. (2000). “Using VRML in construction industry applications.” ⟨http://fire.nist.gov/bfrlpubs/build00/PDF/b00013.pdf⟩ (May 15, 2003).
Loucopoulos, P., and Zicari, R. (1992). Conceptual modeling, databases, and CASE: An integrated view of information systems development, Wiley, New York.
Means, R. S. (2000a). Means assembly costs data, 21st Annual Ed., R. S. Means Company, Inc., Kingston, Mass.
Means, R. S. (2000b). Means square foot costs data, 21st Annual Ed., R. S. Means Company, Inc., Kingston, Mass.
Melin, J. B. (1994). “Parametric estimation.” Cost Eng., 36(1), 19–24.
Meyer, R. E., and Burns, J. T. (1999). “Facility parametric cost estimating.” Proc., Trans. American Association of Cost Engineers, 43rd Annual Meeting, Denver, EST.02.1–EST.02.6.
Oberlender, D. G., and Trost, S. M. (2001). “Predicting accuracy of early cost estimates based on estimate quality.” J. Constr. Eng. Manage., 127(3), 173–182.
Park, C., Choi, S., and Kim, K. (1999). “An efficient quantity takeoff method for the preliminary design phase.” Proc., Trans. American Association of Cost Engineers, 43rd Annual Meeting, Denver, EST.09.1–EST.09.5.
Rast, J., and Peterson, M. K. (1999). “Parametric cost estimating for environmental remediation projects.” Proc., Trans. American Association of Cost Engineers, 43rd Annual Meeting, Denver, ENV.09.1–ENV.09.11.
Spainhour, L. K., and Rasdorf, W. J. (1996). “Entity-relationship modeling of composite materials data.” J. Comput. Civ. Eng., 10(3), 226–235.
Statistics Canada. (2002). “Consumer price index (CPI).” ⟨http://www.statcan.ca/english/Pgdb/econ46.htm⟩ (Feb. 5, 2004).
Teorey, T. J. (1994). Database modeling and design, 2nd Ed., Morgan Kaufmann, San Francisco.
Whitten, J. L., and Bentley, L. D. (1998). System analysis and design methods, 4th Ed., Irwin/McGraw-Hill, New York.
Zhang, K. (1999). “Life cycle costing for office buildings in Canada.” MASc thesis, Dept. of Building, Civil, and Environmental Engineering, Concordia Univ., Montreal, Canada.
Information & Authors
Information
Published In
Journal of Architectural Engineering
Volume 13 • Issue 4 • December 2007
Pages: 205 - 223
Copyright
© 2007 ASCE.
History
Received: Jan 23, 2006
Accepted: Mar 12, 2007
Published online: Dec 1, 2007
Published in print: Dec 2007
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