WEIGHING OF EARTHQUAKES' VULNERABILITY CRITERIA IN TEHRAN

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AGHATAHER R.; DELAVAR M.R.; KAMALIAN N.A.

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Journal: Year:2007 | Volume:40 | Issue:8 (102) Page(s): 1033-1044

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Information Journal Paper

Title

WEIGHING OF EARTHQUAKES' VULNERABILITY CRITERIA IN TEHRAN

Author(s)

AGHATAHER R. | DELAVAR M.R. | KAMALIAN N.A. | Issue Writer Certificate

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Abstract

Clear and justifiable analysis and decision making approaches play critical roles in acceptability of the results by managers and decision makers for optimum information management. This research follows these fact in providing a suitable spatial decision making approach for weighing earthquakes' vulnerability.We developed the well known analytic hierarchical process (AHP) method using basic concepts of fuzzy logic to overcome AHP's high sensibility against uncertainties in an earthquake vulnerability study. The mentioned development is carried out by substituting the simple binary questions in contemporary AHP questionnaires with three-value fuzzy questions. It enabled us to define a triangular fuzzy membership function for the questions. The simple fuzzy structure is adopted here to ensure the least perturbation of intrinsic simplicity of AHP method. Then the relevant analyzes of the AHP are replaced with their fuzzy counterparts. The method has been implemented in this research for weighing of human-loss related vulnerability factors in city of Tehran. Buildings' condition and population are considered as the main factors. The buildings' condition is defined by age, structure and number of floors. These factors are categorized as follow:• Building age: Built before 1966, between 1966 and 1975, and after 1975 University College of Engineering, University of Tehran 3 • Building structure: Very weak, not stabilized, stabilized, and highly stabilized • Building floor number: 1 to 3, 4-15, and more than 15 floors These factors are evaluated for three earthquake scenarios as follow:• Scenario A: A weak to strong earthquake• Scenario B: A strong to severe earthquake• Scenario C: A severe to fatal earthquake The questionnaires were filled by twelve experts in seismology, geology, civil engineering and building structure. The results were analyzed by the contemporary AHP method and the modified one presented in this paper. Analogy of these results showed that the proposed modified AHP has been successful in reduction and absorption of uncertainty. Besides that, interpretation of the results of the proposed approach is closer to objective parameters which can be evaluated by the concerned managers. It also provides our desired level of clarity and justifiability, mostly preserved from AHP as well as considering the concepts and effects of spatial uncertainties in the achieved results.

Cites

THE ASSESSMENT OF INTERNAL EFFECTIVE FACTORS IN URBAN BUILDING VULNERABILITY IN EARTHQUAKE AGAINST USING GIS (A CASE STUDY: OLD TEXTURE OF KHOY CITY)

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APA: Copy

AGHATAHER, R., DELAVAR, M.R., & KAMALIAN, N.A.. (2007). WEIGHING OF EARTHQUAKES' VULNERABILITY CRITERIA IN TEHRAN. JOURNAL OF FACULTY OF ENGINEERING (UNIVERSITY OF TEHRAN), 40(8 (102)), 1033-1044. SID. https://sid.ir/paper/14150/en

Vancouver: Copy

AGHATAHER R., DELAVAR M.R., KAMALIAN N.A.. WEIGHING OF EARTHQUAKES' VULNERABILITY CRITERIA IN TEHRAN. JOURNAL OF FACULTY OF ENGINEERING (UNIVERSITY OF TEHRAN)[Internet]. 2007;40(8 (102)):1033-1044. Available from: https://sid.ir/paper/14150/en

IEEE: Copy

R. AGHATAHER, M.R. DELAVAR, and N.A. KAMALIAN, “WEIGHING OF EARTHQUAKES' VULNERABILITY CRITERIA IN TEHRAN,” JOURNAL OF FACULTY OF ENGINEERING (UNIVERSITY OF TEHRAN), vol. 40, no. 8 (102), pp. 1033–1044, 2007, [Online]. Available: https://sid.ir/paper/14150/en

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