درخت حوزه‌های تخصصی

Iran has an arid climate which characterized by long, hot, dry summers and short, cool winters. Therefore, sunlight and its heating effects were important factors of Iranian architecture and gardens structural design. Textures and shapes were selected by architects to harness the light and supply a shadow in the summer. Water is very important in this climate, both in the architectural design and longevity of gardens. In addition to water, the plants in Iran had been particularly significant. In ancient civilization of Iran, plants have had special position. Supernatural powers that had been in trees such as life-giving, young giving, productivity and Immortality made them sacred for Ancient Iranian people. However, attending to supernatural power of plants was the importance reason that people regarded to plants and made some symbols such as “Life Tree” has income. In Zoroastrian religion books, more values have said about Supernatural cost of plants. Plants have a special value in Zoroastrian Fire Temples, religious ceremony and routine life. Therefore, garden and gardening were sacred for Iranian. The term Zoroastrianism is, in general usage, essentially synonymous with Mazdaism, have discovered dependent on Achaemenids Empire (559–330 BC) and there were in Pasargad. In the Islam tradition the garden as Paradise is, perhaps, even stronger, since the Quran (the central religious text of Islam) describes Heaven as a garden. Islam was spread to the Persians, and reciprocally the Muslims adopted the Persian style of garden. Therefore garden has been invaluable to Iranians. Persian Garden includes some types which one them is Garden City. Isfahan as the Capital of Safavid Dynasty has designed as a big garden according garden city model. Therefore, some solutions have used in urban design regarding Isfahan's arid climate. Safavid government followed the realization of cities ideal that rooted in Islamic beliefs and opinions. The investigations in historical perspective of Safavid cities indicates the importance of cities as the place for presence of symbols and signs. The Symbols which has remind as the ideological concepts, power of dominating government and also getting identity to the city. During the history of Safavid urban design, there were some direct and wide streets (Charbagh) which were the main factors of development and improvement of cities among urban functional and symbolic elements. In historical background of Isfahan garden city is pointed to construction of street (Charbagh) which has attracted the European tourists attention and it will investigate in this article. Initial section of this article is allocated to explain about historical background of Isfahan city in Safavid era and also Charbagh Street. Then this paper with emphasis on some historical documents and analytical studies, compares the Isfahan Charbagh Street with its similar sample in France (Champs-Elysées Street). The conclusion of this article indicates the similarity of Isfahan Charbagh Street and Champs-Elysées Street in some skeletal specifications and the way of formation. French Boulevards were constructed after Isfahan Charbagh in terms of time and they were formed after publishing itineraries and pictures of tourists from this place in Europe .

Given more than seven thousand years of urbanization and highly diverse topographic and geographical conditions, Iran is one of the treasures through the world's architectural history. Climatic diversity, on the one hand, and long history of living, on the other hand, has led to noteworthy and valuable achievement in architecture and urbanization within this country. However, these elements are less utilized in today architecture. Urban life, technological advances and excessive economical demands have extremely made people apart from the nature and formed their mind within an iterative mechanized order. Furthermore, human being is a part of nature and his/ her close relationship to the nature provides him/her with survival and longevity. In Iranian houses, a space indicating relationship between human and nature is courtyard. Central courtyards within vernacular houses in Yazd provided inhabitants with terrific living conditions and enhanced their living quality by utilizing natural elements such as water, wind, light, and plants. Today, due to providing more houses regardless of their quality, not only are natural elements ignored in human life; but also in many cases, buildings do not have essential features of living. This paper attempts to explore how to create and enter natural elements in apartments. This paper aims to investigate natural elements on vernacular houses in Yazd. A descriptive, analytic methodology along with a case study (vernacular houses in Yazd) were employed and data was collected through library and field research.

Looking at the role of climate in indigenous settlements of Gilan, which are formed based on the Uniformitarianism principles for the environmental comfort of residents in the basic body, and stability and compromise with the natural factors, as a basic and immutable principle over time has created various species in its context based on the needs and availability of basic infrastructure. Gilan's Western plains, as a geographic split of microclimate (mild and wet), which has its own unique characteristics, in formation of variable species, according to the needs of households, in terms of population growth and vernacular materials, which is associated with the formation of a space with sustainable self-sufficiency for local residents, and in addition to optimal locating is appropriate in terms of orientation and e building elongation. Accordingly, the comparison between variable species in a microclimate (plain geography) with its own unique features will be obtained as separated assessments from body to climate framework, with deductive components which can form a native settlement, through field work on sustainable buildings in plain villages and functional analysis of samples, attached to professional population of Housing Foundation, which have special knowledge of the characteristics of rural housing related to rehabilitation and re-run today's models. Therefore, providing transparent assumptions on the challenges and principled solutions through questionnaires with derivatives percent available for population, has managed to improve the quality of the results of this study.

Energy efficiency in office buildings has been the center of attention for many researches. This special attention is due to highly energy consumption in this building type. Refinement of facade and building’s envelop is a good approach to reduce buildings energy requirements. Double skin facade concepts are commonly used to achieve that object. Although the concept is not new, there is a growing tendency from the architects to put it into practice. However inappropriate selection of technical parameters in this kind of façade, such as its interior/ exterior openings, layers, materials and sهادیng device would lead to reverse expected results. The objective of this study is to improve and optimize the thermal performance of an office building in hot and dry climate. For this purpose a suitable double skin façade concept is designed to reduce the building’s annual energy requirements. This concept is optimized by integrating with a windcatcher. The optimization is performed based on simulating a designed office building by Energy Plus software. The results revealed that double skin façade integrated with wind catcher can significantly reduce annual energy requirement by 26.65%. The proposed solution can be considered as an effective platform for sustainable architecture and reduction of energy consumption.