Evaluation of Consulting Firms Selection in Construction Projects by Using Fuzzy Logic

Date

2016-05-28

Author

Kazaz, Aynur
Birgönül, Mustafa Talat
Kaplan, Hakan
Acıkara, Turgut
Er, Bayram

Metadata

Show full item record

Item Usage Stats

118
views

0
downloads

Construction industry brings different specialization-required disciplines together in a common project. This circumstance complicates finishing a project within a desired time, cost and quality. In recent years, especially non-sector investors have started to employ consulting firms for the design and management of the projects to overcome this problem. Unlike contractor selection process, consulting firm selection process is too complicated for a cost-oriented evaluation. In this sense, different organizations such as International Federation of Consulting Engineers (FIDIC) developed new bidding systems for contractor selection. “Quality and Cost Based Selection” (QCBS), which allows to evaluate quality and cost of the bids concomitantly, is one of the widely used system in construction industry. In this study, it was aimed to determine which criterions are prioritized in QCBS system by using fuzzy logic. In this context, data of 65 bids belonging to 13 different tenders were investigated and a fuzzy model consisting of 3 input and 1 output variable was developed. The results revealed that, in general consulting firms, which are invited to the tenders, ensures the quality criterions and cost criterion determines the selection.

Subject Keywords

Consulting firm selection, Fuzzy logic, Fuzzy set theory, Construction management

URI

https://hdl.handle.net/11511/71940

Conference Name

2nd International Conference on Engineering and Natural Sciences (ICENS 2016) (24 - 28 Mayıs)

Collections

Department of Civil Engineering, Conference / Seminar

Suggestions

OpenMETU
Core

An investigation of legal aspects of BIM in construction contracts Kaya, Fatih; Akçamete Güngör, Aslı; Birgönül, Mustafa Talat (null; 2019-04-17) Building Information Modeling (BIM) has been adopted worldwide in recent years as a novel way of working that enables efficiency in the construction industry. Lately, numerous countries made it compulsory to utilize BIM in public construction projects. Similarly, BIM became a contractual requirement in some public infrastructure and Build-Operate-Transfer (BOT) projects in Turkey. However, in order to benefit from the advantages of BIM, some legal concerns such as intellectual property, liability, legal val...
Cash flow analysis of construction projects using fuzzy set theory Melik, Serhat; Sönmez, Rifat; Department of Civil Engineering (2010) Construction industry is a one of the most risky sectors due to high level of uncertainties included in the nature of the construction projects. Although there are many reasons, the deficiency of cash is one of the main factors threatening the success of the construction projects and causing business failures. Therefore, an appropriate cash planning technique is necessary for adequate cost control and efficient cash management while considering the risks and uncertainties of the construction projects. The m...
USAGE OF FUZZY MULTI CRITERIA DECISION MAKING METHODS IN SELECTION OF NONTRADITIONAL MANUFACTURING METHODS Kul, Yavuz; Seker, Alper; YURDAKUL, MUSTAFA (2014-01-01) New manufacturing technologies such as nontraditional manufacturing methods (NMM) were needed recently because of new machining requirements for parts with complex geometries, very narrow machining area and high strength materials and also for very small and delicate parts. Since NMM are diverse and their numbers are increasing with the development of new approaches, selecting the most appropriate one among many NMM requires systematic models which incorporate multi-criteria decision making approaches. In t...
Development of an IT-based tool for portfolio assessment and management for construction companies Bilgin, Gözde; Dikmen Toker, İrem; Özorhon Orakçal, Beliz; Department of Civil Engineering (2019) Development in the construction industry has leaded most of the construction companies to undertake more complex projects than before, which are generally executed concurrently. Therefore, project management routines of the companies may not support effective management of multi-projects. Project portfolio management approach has been suggested to meet requirements for coordinating multi-projects to meet strategic objectives under limited resources. Since project portfolio management requires a comprehensiv...
Improving sub-contractor selection process in construction projects: Web-based sub-contractor evaluation system (WEBSES) Arslan, Gokhan; Kivrak, Serkan; Birgönül, Mustafa Talat; Dikmen Toker, İrem (Elsevier BV, 2008-05-01) One of the most important phases in the construction industry (CI) is the bidding process. During the bidding process, selecting the most appropriate sub-contractors (SCs) for the relevant sub-works is highly critical for the overall project performance. In order to select the most appropriate SCs for the project and prepare the most realistic and accurate bid proposal, general contractors (GCs) have to know all financial, technical and general information about these SCs. Within this context, GCs should co...

Citation Formats

A. Kazaz, M. T. Birgönül, H. Kaplan, T. Acıkara, and B. Er, “Evaluation of Consulting Firms Selection in Construction Projects by Using Fuzzy Logic,” presented at the 2nd International Conference on Engineering and Natural Sciences (ICENS 2016) (24 - 28 Mayıs), Saray Bosna, Bosna-Hersek, 2016, Accessed: 00, 2021. [Online]. Available: https://hdl.handle.net/11511/71940.