Typological Study of Physical Structure and Climate Characteristics of Traditional Houses in Dezful
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WALIA journal 31(S5): 57-68, 2015 Available online at www.Waliaj.com ISSN 1026-3861 © 2015 WALIA Typological study of physical structure and climate characteristics of traditional houses in Dezful Yaghowb Peyvastehgar 1, Sadeg Ahouei 2, Vahid Khuonbazi 3, * 1Department of Urban Planing, Yasuj Branch, Islamic Azad University, Yasuj, Iran 2PhD Student, Department of Architecture, Yasuj Branch, Islamic Azad University, Yasuj, Iran 3PhD student, Department of Architecture, Zahedan Branch, Islamic Azad University, Zahedan, Iran Abstract: Over different ages and eras, Iranian traditional architecture with its old rich possessions has tried to create and make an optimal and perfect environment to live in. One of the most important and tangible issue in Iranian traditional architecture is to pay proper attention and awareness of climate conditions and human comfort in the environment and to make an effort to use climate elements and consider climatic designing to construct Iranian traditional houses. Iranian architects have attempted to create an optimal environment with proportion of intercalary direction and control dimensions and mass ratio and physical ratio of buildings in order to control climate conditions and even use climate elements appropriately. In this paper that is a descriptive article and has collected information by library and field methods has attempted to have a typological study on the physical structure and dimensions and sizes of traditional houses by Dezful climate conditions taken into consideration, and it will discuss some questions: what are the structural parameters considered by the Iranian architects when designing the mentioned houses according to climate conditions? Do the structural elements and also ratios and dimensions of houses in Dezful could be effective on creating a physical optimal condition? And finally, how could the given parameters affect creation of an optimal environment (positively/negatively)? Consequently, the following results have been obtained: Some of the effective climate parameters on houses in Dezful have been identified and studied. The basic effective structural elements on climatic designing of traditional houses in Dezful play an important role in creating physical spaces of traditional houses in Dezful along with high positive effects. Dezful houses possess many climate conditions and considering such conditions have made it possible for people to live in such survival and living conditions in the city. Key words: Climate; Climatic designing; Comfort; Dezful; House; Physic; Structure 1. Introduction architecture, climatic designing have had an accurate and elaborate expression whether in the rural *Synchronously with global energy crisis and buildings located at Alps in Switzerland or in the consistent with all other industries and fields, traditional house plans with central courtyard. architecture is also trying to present better (Watson et al., 2009) In vernacular buildings and strategies to use, control and save energy local styles, climate has been considered a basis for consumption better. In this regard, in addition to human life and activities from which shapes and technological aspects and architectural sustainable aesthetics of the buildings have been resulted. design, vernacular and local architectures for any Watson, Donald, Lebz, Kennet, 2009. Climatic region, and methods and solutions to deal with designing is a method to reduce energy cost in a and/or utilize climate elements to create a suitable building (Watson et al., 2009). In all climates, life environment have been discussed and studied as buildings constructed according to climatic one of the most interested categories. designing principles minimize the necessity of Humankind deals with the environment in many mechanical heating and cooling and in turn use the ways for his heat comfort. And also, he has learned energy that exists in surrounding area of the building by experience that with the aid of architecture he (Watson et al., 2009). Costs that are saved in the could keep his surrounding space under an long-term make performing the climatic designing appropriate heating condition, although he has not techniques the best way of investment for building been always successful in the latter and sometimes owners (Watson et al., 2009). Vernacular and the human shelter itself causes thermal discomfort traditional buildings for any region are products of (Razjuyan, 1986). Over the entire history of the experience collected during ages and could be a architecture and building construction, designers permanent source of knowledge. Utilization of local have sought to respond climate conditions. (Watson, environment-friendly materials and local climate is Donald et al., 2009) Even in the so called "primitive" some of factors resulting in a distinct architectural identity in any region. Today, with increasing global * Corresponding Author. attention to reduction in the artifact environmental 57 Peyvastehgar et al/ WALIA, 31(S5) 2015, Pages: 57-68 pressure on the natural environment and utilization case study on the climate architecture and of inactive designing methods to meet cooling and parameters considered in this type of architecture in heating needs of the building to reduce energy Dezful. First, climate and its parameters are consumption, it seems necessary to pay attention to discussed. patterns of vernacular designing in our country. (Taban and Mohsen, 2013) In most of the developed 2. Climate countries and academic spaces, many researchers have been conducted in this field and continue to be Climate derived from Greek word "clime" and conducted. That is the main reason why different generally refers to weather conditions of the earth researchers have studied the vernacular and (Moradi, 2008). Climate and physical factors include traditional buildings throughout the world with solar, air, humidity, and several other factors form respect to the bioclimatic and environmental the earth climate situation or status. Gravity and architecture. These researches address the thermal forces are also effective factors on the earth environmental performance in traditional climate condition (Moradi, 2008). Air pressure, architecture by both quantitative and qualitative temperature, geographical location in terms of methods. While quantitative approach studies basic typology are all considered effective factors on the measurement in situ for different climate climate conditions in the continental scale (Moradi, parameters in and out of the buildings that results in 2008). conclusions about thermal performance of the house, With respect to diversity of contents and climate qualitative approach includes environmental parameters, it is tried to address the discussion performance of various elements of buildings and/or generally as shown in the following Table 1. developments related to dominant climate conditions. In the present paper, it is tried to have Table 1: Climate elements and parameters (Source: Author, with an emphasis on the book Climate study of Iranian traditional buildings, Gobadiyan, V. 2005) Derives from Greek word "clime" and generally refers to weather conditions of the earth. Definition (Moradi,Sasan,2008) effects Architectural approaches ……………. Specifications Useful Harmful Winter summer Lack of DeterminantParameters control Change in the on solar Due to deviation locations of energy Climate of axial tilt of the sunrise and and Preventio earth, angle of sunset, gaining Increase in n of heat solar radiation to advent of Angle of extreme heat gained, gain, earth and also different solar energy in prevention of increase in locations for seasons, radiation the heat heat sunrise and receiving building dissipation dissipatio sunset vary for solar energy, make n different and heat gain increased seasons. as stored in heat in the building the building. 58 Peyvastehgar et al/ WALIA, 31(S5) 2015, Pages: 57-68 The more Lack of vertical solar control radiation the on solar more thermal energy One of the most effect it will and Preventio Latitude, important have. In obtaining Increase in n of heat i.e. factors in any geographical extreme heat gained, gain, remoteness local climate circuits, energy in preventing increased or nearness condition is its depending on the heat heat to the location on the remoteness building dissipation dissipatio equator earth, i.e. local or nearness make n latitude. to the increased equator, heat in temperature the is colder or building. hotter. Because wind Wind is has rain effective clouds and on sound also rain with transfer, itself that are air Difference in required for pollution, temperature and life, living on and Intensity pressure along the earth is smells. and with earth impossible Undesira direction of rotation cause for humans ble winds seasonal movement of air without play a winds flow and as a result, wind. Wind role in movement of plays a role creating wind. in undesirab temperature le transfer and condition ventilation in s in the the building. building. Presence Presence of Due to thermal of relative water capacity and humidity resources specific heat, of air allows for Utilization water is more beyond moderate of capable of human temperature evaporativ conserving heat comfort and water e cooling as compared to causes an could reduce to cool the the average heat uncomfor temperature building storage in other table fluctuations objects on the condition in the earth. in the building. Presence of building. humidity and plants Plants play in the an important region