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Computers and Concrete Volume 22, Number 3, September 2018 , pages 327-336 DOI: https://doi.org/10.12989/cac.2018.22.3.327 |
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Selecting optimized concrete structure by Analytic Hierarchy Process (AHP) |
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Morteza Ebrahimi, Amir Ahmad Hedayat and Hamed Fakhrabadi
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| Abstract | ||
| Increase in population and its daily increasing in our today society results in an increase in housing demand while traditional methods are not applicable. The project preparation and realization processes, based on theoretical and empirical studies, a creation of goods, services, and technologies, are the most important human activities. Selection of effective technological systems in construction is a complex multi-criteria decision-making task. Many decision-makers refuse innovations once faced with similar difficulties. Therefore, using modern materials and methods in this industry is necessary. Modern methods increase quality and construction speed in addition to decrease energy consumption and costs. One of the problems in the way of any project is selecting construction system compatible with the project needs and characteristics. In the present research, different concrete structures such as common reinforced concrete (RC) structure, prefabricated, Insulating Concrete Formwork (ICF), 3D Panel and Tunnel Concrete Formwork (TCF) for buildings with limited floors in Iran are studied and compared from the viewpoint of different criteria like cost, time, applicability and technical characteristics with industrialization approach. Therefore, some questionnaires filled out by construction industry experts in order to compare criteria and sub-criteria in addition to evaluation of optimized structural systems. Then, results of the questionnaires ranked by Analytic Hierarchy Process (AHP) and the most effective alternative selected. The AHP results show that 3D Panel system 36.5%, ICF 21.7%, TCF 19.03%, prefabricated system 13.3% and common RC system 9.3% are the most and the least efficient systems respectively. | ||
| Key Words | ||
| concrete structure; common reinforced concrete; prefabricated system; tunnel concrete formwork; 3D panel; insulating concrete formwork; AHP; multi-criteria decision-making | ||
| Address | ||
| Morteza Ebrahimi and Amir Ahmad Hedayat: Department of Civil Engineering, Islamic Azad University, Kerman branch, Kerman, Iran Hamed Fakhrabadi: Department of Civil Engineering, Islamic Azad University, Science and Research of Tehran, Tehran, Iran | ||