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Al-Humaidi, H M (2007) A fuzzy logic approach to model delays in construction projects, Unpublished PhD Thesis, , Ohio State University.
Al-Kaabi, N S (2006) A fuzzy-based construction safety advisor (CSA) for construction safety in the United Arab Emirates, Unpublished PhD Thesis, , The Ohio State University.
Bu-Qammaz, A S A S (2015) Risk management model for international public construction joint venture projects in Kuwait, Unpublished PhD Thesis, , Ohio State University.
El-khawas, I N (1997) The optimal design of buildings: A life-cycle approach to energy efficiency, Unpublished PhD Thesis, , The Ohio State University.
Ellis, R A (1980) An analysis of the impact of public participation activities in water and transportation projects, Unpublished PhD Thesis, , Ohio State University.
Fereshtehnejad, S (2018) Multi-hazard lifecycle methods for aging structures and infrastructure systems, Unpublished PhD Thesis, , Ohio State University.
Garrett, C C (1991) Roadway infrastructure management and investment behavior studies for developing countries: A multicriteria approach to road improvement decision-making, Unpublished PhD Thesis, , The Ohio State University.
Godby, C J (2002) A computational study of lexicalized noun phrases in English, Unpublished PhD Thesis, , The Ohio State University.
Halfawy, M M R (1998) A multi-agent collaborative framework for concurrent design of constructed facilities, Unpublished PhD Thesis, , The Ohio State University.
Hauenstein, A D (1966) Construction: A taxonomy and syllabus of production practices with implications for industrial arts, Unpublished PhD Thesis, , The Ohio State University.
Jin, R (2013) A statistical modeling approach to studying the effects of alternative and waste materials on green concrete properties, Unpublished PhD Thesis, , Ohio State University.
Mahmood, N A (2021) Real-time site safety risk assessment and intervention for on-foot building construction workers using RFID-based multi-sensor intelligent system, Unpublished PhD Thesis, , The Ohio State University.
Pan, N-F S (2001) Fuzzy reasoning expert scheduling system (FRESS) for highway construction subject to rain impact: A case study in Taiwan, Unpublished PhD Thesis, , Ohio State University.
Sadoun, B I (1992) A modeling methodology for energy-conserving site design, Unpublished PhD Thesis, , The Ohio State University.
Sarma, K C (2001) Fuzzy discrete multicriteria cost optimization of steel structures using genetic algorithm, Unpublished PhD Thesis, , The Ohio State University.
- Type: Thesis
- Keywords: market; optimization; uncertainty; steel structures; cost optimization; life cycle; life cycle cost
- ISBN/ISSN:
- URL: https://www.proquest.com/docview/304720723
- Abstract:
A great majority of optimization works on steel structures deal with minimum weight design. But in reality minimum weight design is not necessarily a minimum cost design. The price of commercially available rolled steel shapes in the market does not necessarily depend only on its weight but also on some other factors including demands and grades. In cost optimization, however, additional difficulties are encountered. They include the definition of cost function and uncertainties and fuzziness involved in determining the cost parameters. As a result only a small fraction of the structural optimization papers published deal with the minimization of the cost. In this work a fuzzy discrete multicriteria initial cost optimization model has been developed by considering three criteria: (1) minimum cost, (2) minimum weight, and (3) minimum number of section types. This discrete cost optimization procedure is preceded by a fuzzy genetic continuous variable minimum weight design as a preliminary design. In this design the uncertainty or fuzziness of the AISC code based design constraints are considered. Furthermore, the fuzzy multicriteria initial cost optimization model is extended to perform a life cycle cost optimization of steel structures. For optimization of large steel structures more than 99% of computation time is spent on the minimum weight design using the fuzzy Genetic Algorithm. Sequential processing of this optimization work in a single processor is very inefficient resulting in huge numbers of page faults and cache misses even in a supercomputer like Origin 2000. In this work two bi-level parallel processing algorithms are developed by using (1) data parallel procedure using OpenMP API at inner level and (2) message passing distributed parallel processing procedure by using function calls from MPI message passing library at outer level. Significant performance enhancement has been obtained in comparison to the traditional data parallel or distributed message passing parallel processing.
Sirca, G F (2019) Analysis of full-scale in-service civil engineering structures, Unpublished PhD Thesis, , The Ohio State University.
Stanbury, J A C (1992) An exploratory empirical study of the international consulting engineering design services industry: A United States perspective, Unpublished PhD Thesis, , Ohio State University.
Tseng, C-H (2006) Safety performance analyzer for constructed environments (SPACE), Unpublished PhD Thesis, , The Ohio State University.
Vargas, C A (1998) Investigating construction falls using fault tree analysis and developing a prototype tool to reduce falls using expert system and computer-assisted instruction methods, Unpublished PhD Thesis, , The Ohio State University.
Wee, S (1993) A prototype of an expert system for pavement maintenance and rehabilitation strategy in the state of Ohio (espresso), Unpublished PhD Thesis, , The Ohio State University.
Yang, F (2022) Ascending the pagoda: A ground-up exploration of the ancient construction methods of dayanta using virtual reality, Unpublished PhD Thesis, , The Ohio State University.
Yoo, W S (2007) An information-based decision making framework for evaluating and forecasting a project cost and completion date, Unpublished PhD Thesis, , Ohio State University.
Young, D R (1968) The development of a construction industry interest inventory, Unpublished PhD Thesis, , The Ohio State University.
Yu, B (2007) Essays on structural analysis of procurement auctions, Unpublished PhD Thesis, , The Ohio State University.