Abstracts – Browse Results
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AbulHassan, H S (2001) A framework for applying concurrent engineering principles to the construction industry, Unpublished PhD Thesis, , The Pennsylvania State University.
Chen, C (2005) Entry strategies for international construction markets, Unpublished PhD Thesis, , The Pennsylvania State University.
Corbett, D I (1997) Quantifying quality in industrial construction, Unpublished PhD Thesis, , The Pennsylvania State University.
Dubler, C R (2011) Evaluating waste associated with building information exchange using lean theory, Unpublished PhD Thesis, , The Pennsylvania State University.
Enache-Pommer, E (2010) A synergistic approach to green building delivery, lean principles and building information modeling in the design of healthcare facilities, Unpublished PhD Thesis, , The Pennsylvania State University.
Gabrielli, M F (2009) Structural analysis of auction models, Unpublished PhD Thesis, , The Pennsylvania State University.
Gannon, E J (1998) A life-cycle cost model for use in the optimization of concrete bridge deck repair and rehabilitation, Unpublished PhD Thesis, , The Pennsylvania State University.
- Type: Thesis
- Keywords: optimization; subsidence; bridge; highway; corrosion; deterioration; rehabilitation; repairs; probability; Monte Carlo simulation; simulation
- ISBN/ISSN:
- URL: https://www.proquest.com/docview/304444048
- Abstract:
This research shows that it is possible to develop a life-cycle cost model incorporating both deterministic and probabilistic components. The development of the cost model by assembling large amounts of data from many state highway agencies was critical to the success of the model. By correcting the data for time and location it was possible to develop a reasonably deep data base for the repair alternatives. The deterioration model combines the deterministic diffusion equation with the probabilistic nature of composite materials, like concrete. This was made easier by the use of a Monte Carlo simulation. Probability distributions for the diffusion coefficient, equilibrium chloride concentration, reinforcing bar cover and chloride threshold limit were developed and used as input for the simulation. The outcome of the simulation was the chloride content at the bar depth, the percentage of the deck which was corroding, and the corrosion due to subsidence cracking. These were combined to determine corroded area and then the quantity needed for repair. The life-cycle cost model was developed to optimized the time at which partial depth patching occurs and selection of patching and/or overlaying as repair strategies. The most significant factor in the optimization was the cover depth. This played a significant part because of time to corrosion effects. The present value of repairs for shallow cover was much greater than for deeper cover. It was determined to be economically feasible to increase the cover depth from 2.0 inches to 3.0 inches based on the savings from repairs compared to the additional cost of concrete in the deck. In a comparison between the costs for patching and overlaying the cover depth provided influence on the economics of repair choices. For the shallowest cover, it was found that the most economical strategy was not to patch the deck but provide overlays at 13 and 38 years. For 2.5 inch cover, the economic decision was to patch the deck from year 15 to 24 then overlay. This option was also the optimal strategy for 3 inch cover. At this cover depth, the gap between the most and least expensive options narrowed.
Gultekin, P (2015) An integrated process model and decision support system for energy efficient retrofits, Unpublished PhD Thesis, , The Pennsylvania State University.
Jiang, L (2016) A constructability review ontology to support automated rule checking leveraging building information models, Unpublished PhD Thesis, , The Pennsylvania State University.
Kalamaras, G S (1996) A case method approach for interactive risk analysis of tunnel "design-for-constructability" concept, Unpublished PhD Thesis, , The Pennsylvania State University.
Kerns, W R (1971) Criteria for determining economic priorities in awarding sewage facility construction grants, Unpublished PhD Thesis, , The Pennsylvania State University.
Konchar, M D (1997) A comparison of United States project delivery systems, Unpublished PhD Thesis, , The Pennsylvania State University.
Korkmaz, S (2007) Piloting evaluation metrics for high performance green building project delivery, Unpublished PhD Thesis, , The Pennsylvania State University.
Kumar, S (2013) Experience-based design review of healthcare facilities using interactive virtual prototypes, Unpublished PhD Thesis, , The Pennsylvania State University.
Kuntz, K A (1994) A construction crew evaluation model to improve craft productivity, Unpublished PhD Thesis, , The Pennsylvania State University.
Lather, J I (2019) A hybrid modeling approach using discrete event simulation and layout optimization for healthcare layout planning problems, Unpublished PhD Thesis, , The Pennsylvania State University.
Magent, C S (2005) A process and competency-based approach to high performance building design, Unpublished PhD Thesis, , The Pennsylvania State University.
McIntyre, C (1996) A decision support system for the residential land development site selection process, Unpublished PhD Thesis, , The Pennsylvania State University.
Mohammadpour, A (2014) Retrofitting healthcare facilities to enhance patient safety and energy efficiency, Unpublished PhD Thesis, , The Pennsylvania State University.
Nguyen, T-H (1999) Automated deduction of topological information in a computer-based building design system, Unpublished PhD Thesis, , The Pennsylvania State University.
Sprau Coulter, T L (2014) Improving energy audit process and report outcomes through planning initiatives, Unpublished PhD Thesis, , The Pennsylvania State University.