Summary of Application of Fuzzy Mathematics in Construction Project Management
Dongyou Tong, Yueming Wang
School of Civil Engineering and Architecture, Southwest University of Science and Technology, Mianyang, China
ABSTRACT
Construction project management is an important aspect of civil engineering construction. How to use scientific and efficient methods to effectively manage construction projects is the focus of construction project development under the current situation. This article discusses the application of fuzzy mathematics in construction project management. The study found that in the process of construction project management, it was found that a single fuzzy mathematical method was difficult to adapt to the current complex and changeable construction projects. Combining fuzzy mathematics with other management methods and computer applications can better simplify complex things, reduce human subjectivity, increase calculation speed, and achieve a combination of qualitative and quantitative research; selection of optimization schemes and risk assessment, etc. All have a good effect, and can better deal with possible or uncertain things and emergencies in the process of project management. At the same time, combining fuzzy mathematics with heuristic algorithms or meta-heuristic algorithms can make research more objective, improve management efficiency and calculation speed.
Keywords:
Fuzzy Mathematics, Project Management, Civil Engineering
- Introduction
With the advancement of science and technology and the continuous development of society, the contemporary project environment has the characteristics of fast speed, rapid change, low cost, increased complexity and increased uncertainty. The relevant personnel of construction project management are facing huge challenges, requiring them to have high scientific management concepts, methods, management means and matching engineering technology. It is a challenge under the new situation to adopt scientific and effective methods to meet the high standards and requirements of construction engineering management. Construction project management involves the management of the whole process of the project, and its connotation refers to the realization of the cost, schedule and quality objectives of the project through project planning and project control from the beginning of the project to the completion of the project . In the whole life cycle of a project, there is some ambiguity in the contents of management at different stages. For uncertain, inaccurate and inaccurate events, the traditional methods may lead to inaccurate or inefficient results. Scholars such as Abdul-Rahman, Wang Kaibao and others combine fuzzy mathematics with construction project management, and use fuzzy mathematics methods to judge, evaluate and make decisions on the research objects, so as to form a more effective management and decision-making system.
Due to the limitations of classic mathematics, in 1965, Professor LAZadeh of the University of California published two groundbreaking papers entitled: “Fuzzy Sets” and “Fuzzy Sets and Systems”, which laid the foundation for fuzzy set theory and application research. It marked the birth of fuzzy mathematics . Fuzzy mathematics theory is not only a new mathematical theory, but also a new mathematical tool, mainly to solve some “fuzziness” phenomena. After decades of development, fuzzy mathematics has opened up its application field in the direction of construction engineering project management. The application of fuzzy mathematics theory has also obtained rich research results, and it has solved some problems that cannot or are difficult to solve with classical mathematical methods. We showed a very gratifying prospect .
It is very useful to explore the application of fuzzy mathematics in engineering management. What we have to do now is to maximize the application effect of fuzzy mathematics in construction project management, continue to promote the use of fuzzy mathematics in engineering management, and continuously improve related technologies. Improve management efficiency and the quality and economic benefits of civil construction projects.
- Application of Fuzzy Mathematics in Risk Management of Construction Projects
Due to the long construction period, complex technology, large investment and other characteristics of engineering projects, there are many uncertain factors that affect the development of the project toward the established goal, so there are many risks in the construction process of the engineering project. Risk refers to the uncertainty between the purpose of production and the results of labor, which has objectivity, universality, inevitability, identifiability, controllability, loss, uncertainty and sociality. For construction project management, risk refers to the possible uncertain factors that may affect the realization of project goals. In the process of construction project risk management, by studying the application of fuzzy mathematics in construction project risk management, we explore better methods of planning,organization, leadership, coordination and control, and provide a basis for risk decision-making.
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- Application of Fuzzy Mathematics in Project Evaluation
Traditional project evaluation methods mainly include: net present value, internal rate of return, investment payback period, equal annual value, etc. However, because the project has attributes such as one-off, the risk of the project is based on itself, and the risk cannot be excluded from the project. In order to consider the impact of project risk on project evaluation, sensitivity analysis and probability analysis are introduced. Due to the difficu
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