Fire vulnerability assessment of architectural design parameters with fuzzy logic model

Kızılkaya, Nilüfer
There is a direct relationship between building characteristics and fire spread. Acceptability of fire safety design involves interoperability of fire safety objectives and building design input. In case of unacceptable fire safety design process, modifications are made in proposed building design parameters for which architects are decision makers. Therefore, in order to get an acceptable level of fire safety, vulnerability of building design parameters must be identified during the design process by architects. The vulnerability level provides performance evaluation of the building in terms of hazardous actions and critical building design parameters to get prevention measures during the design process. Conventional design of building parameters regarding fire safety direct architects to regulations. However, for most of the architects, deterministic approaches of regulations are perceived as restrictions for the creative basis of architecture. Regulation-based vulnerability evaluation systems use deterministic and single parameter approach, in which the parameter either follows the rules, or not. On the other hand, the rapid increase in complexity and amount of information on building systems requires quick-response evaluations based on the decision-maker’s intuition, judgement, and experience. Moreover, increased building complexity reveals highly complex decision problems with multi-variables that are stochastic, unknown, and fuzzy. By providing complex interactions between variables, fuzzy logic enables qualitative descriptions of everyday reasoning. Therefore, in order to identify fire safety vulnerabilities of building variables based on expert opinion, this research uses fuzzy expert evaluation model. Fuzzy expert system helps the integration of uncountable, undefined, and uncertain information in the decision-making process. Previously studied fire safety fuzzy models do not cover all critical parameters of building characteristics, and focuses on comprehensive or active fire protection systems. In the proposed fuzzy fire safety vulnerability model, most critical building parameters regarding fire safety are determined through literature analysis. On the other hand, linguistic expert opinion is converted to membership functions through fuzzyTECH fuzzy logic toolbox, and rule-based interrelations of parameters are defined through human reasoning. Performing vulnerability evaluation with fuzzy expert model gives quick response and more accurate results based on human reasoning.


Modelling of strengthened hollow brick infills
BARAN, MEHMET; Ozcelik, Ramazan; Sevil, Tugce; Canbay, Erdem (2013-02-01)
Strengthening the existing hollow brick infill walls by bonding high-strength precast concrete panels or applying steel fibre reinforced mortar was found to be an occupant-friendly seismic retrofitting technique for the buildings in use with deficient reinforced concrete structural systems. Both techniques convert the existing non-structural hollow brick infill walls into load-carrying structural members. To verify the effectiveness of the techniques, 20 reinforced concrete frames with hollow brick infill w...
Construction techniques of traditional Birgi houses
Diri, Filiz; Şahin Güçhan, Neriman; Department of Architecture (2010)
The aim of this study is to create reliable and comprehensive information, for its potential usage in conservation efforts, regarding the construction techniques of the traditional houses in Birgi,
The Impact of surface texture and wind on convective heat transfer from building façades
Öztürel, Necil; Elias Özkan, Soofia Tahira; Department of Building Science in Architecture (2013)
In this study, the impact of the surface texture of finishing materials and wind conditions on heat loss from the building’s facade are investigated. Three sets of samples (Set A, B and C) are tested and observed under varying wind speeds and varying wind angles in a wind tunnel. Both Sets A and B are composed of seven samples each, all having different surface textures. Set A samples were prepared from gypsum plaster and Set B samples from cement plaster mix. Set C consists of five different samples of con...
Condition factor for seismic performance of deteriorated bridges
Ocak, E. Canan; Caner, Alp (IOS Press, 2019-01-01)
Bridges located at moderately or highly aggressive environments can be subjected to different levels of deterioration. Deterioration can be observed as cracking or spalling of concrete and corrosion of reinforcement. Among them corrosion of reinforcement is the main concern in capacity reduction due to loss of steel area and reduction in yield strength. Corrosion may even induce total collapse of bridge. In many cases, reinforced concrete bridges constructed over rivers exposed to reinforcement corrosion at...
The development of a building energy performance evaluation program (EnAd) for architectural design process
Çakıcı, Fatma Zehra; Sorguç, Arzu; Department of Building Science in Architecture (2013)
Energy performance in buildings has become one of the most broadly debated subjects in contemporary architecture; and current legislation has emphasized its importance by requiring buildings to possess an energy performance certificate. Due to the technological advances in computational tools, it is possible to analyze the energy performance of buildings before construction starts; however most energy performance evaluation tools, requiring complex solid models and high technical knowledge in the field, can...
Citation Formats
N. Kızılkaya, “Fire vulnerability assessment of architectural design parameters with fuzzy logic model,” M.S. - Master of Science, Middle East Technical University, 2016.