Abstracts – Browse Results
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Duzkale, A K (2013) Reducing uncertainty in bid preparation phase of cost estimating for structural steel, Unpublished PhD Thesis, , Catholic University of America.
Huynh, H T (2021) Game theory applications in construction project management, Unpublished PhD Thesis, , Catholic University of America.
Malcomb, A P (2022) New universal law: Application of Tracy-Widom theory for construction network schedule resilience, Unpublished PhD Thesis, , Catholic University of America.
Schied, E P, Jr. (2012) Geometric information scheduling to identify and resolve spatial conflicts and increase efficiency of space use on construction projects, Unpublished PhD Thesis, , Catholic University of America.
Su, Y (2017) Unified quantitative modeling for integrated multi-objective project management with singularity functions, Unpublished PhD Thesis, , Catholic University of America.
- Type: Thesis
- Keywords: duration; construction project; bidding; cash flows; payment; safety; scheduling; site layout
- ISBN/ISSN:
- URL: https://www.proquest.com/docview/1912757321
- Abstract:
Construction project management is essentially an ongoing process with multiple constrains consisting of quality, time, cost, and resource. These constraints are interrelated and compete with each other, which requires an integrated method to express the complete project efficiently. Therefore, the objective of this dissertation is to explore how such very disparate aspects, here limited in scope to quantitative ones, can be integrated by cohesive and versatile modeling. The mathematical models which integrate linear schedules, cash flows, and resources are created per the paradigm of Ockham’s razor, who advocated ‘as simple as possible, as complicated as necessary’ for models. First, the synthetic cash flow model is developed to integrate schedules and cash flows, which considers periodically occurring cash flows, profit markups, and time value of money. With this model, the balance can be expressed as a group of equations. Second, based on the synthetic cash flow model, feasible prompt payment discount scenarios are investigated from transforming the balance function to the discount function and discussing its upper and lower bounds; unbalanced bidding strategies are created from reforming the markup functions; a new theory is developed on how contractors can increase their profit by rescheduling noncritical activities within their floats. Third, with integrating schedules and resources, the linear scheduling with multiple crews model is established which provides a comprehensive theory for the repetitive scheduling. Fourth, the multi-dimension model is expanded to the point-vector formula with singularity functions. In this area, the mathematical model is created to support allocating time and workspace with concurrent activities and under safety constraints, which ensures that temporal and spatial buffers between work-paths, planes, and zones are maintained. Finally, it integrates modeling on schedules, cash flows, and site layout planning and safety management, which allows the model to generate a work plan that is both efficient to achieve and safe to execute. In conclusion, such integrated models based on singularity functions open new possibilities for holistic planning and management of construction projects. Linking its various quantitative elements thus enables a customizable and easily adoptable approach and facilitates comprehensive analysis toward minimum duration, minimum cost, and maximum resource utilization.
Thompson, R C, Jr. (2012) Risk measurement, allocation, and pricing in network schedule systems, Unpublished PhD Thesis, , Catholic University of America.