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F Boodai, C Menassa, A Hanna

Understanding How Integrated Project Delivery Improves Project Success from an Owner’s Perspective

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Series: w78:2012 (browse)
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Kumar V S S, Hanna A S, Natarajan P

Application of fuzzy linear programming in construction projects

Abstract: In classical optimization model, the objective function and the constraints are represented very precisely under certainty. However, many of the constraints are externally controlled and the variations cannot be predicted to a reliable extent. This may cause difficulties in representing these interacting variables for optimization. To overcome these limitations, Zimmerman's fuzzy logic approach is applied for optimization in this paper. Here, the embedding simulation results are used as inputs to a fuzzy linear programming model to soften the notion of "constraints" and "objective function." This approach will acknowledge and postulate that the objective function and the constraints are of the same nature and the distinction between them is gradual rather than abrupt. An application of this integrated approach to a case study demonstrates the efficacy of this flexible algorithm in dealing with qualitative factors in a more meaningful way than classical linear programming. One of the main advantages of this method is that it can be easily implemented in the existing computer programs for optimization.

Keywords: finear programming, fuzzy sets, tolerance limits, fuzzy goals, fuzzy constraints

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Series: itaec:2004 (browse)
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M El Asmar, A S Hanna

Comparative Analysis of Integrated Project Delivery (IPD) Cost and Quality Performance

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R Al-Sabah, C C Menassa, A Hanna

Evaluating Significant Risks in the Middle East North Africa (MENA) Construction Projects from Perspective of Multinational Firms

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Taner Sumer, Altay Giivenir H, Hanna T H

Pile: a c program for designing pile supported embankments

Abstract: This paper presents a computer program, called PILE, for designing pile supported embankment structures. The program allows the user to input the characteristics of a single pile, the embankment and the foundation environment. The program first calculates the bearing capacity of a single pile, then proceeds on iteratively calculating the efficiency of a pile group until the minimum number of piles required to carry the given embankment load is reached. The intermediate results are also displayed on the screen, enabling the user to experiment with different geometrical characteristics of a pile and the embankment.

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Series: ecce:1997 (browse)
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