Khashkhāshī in the design of Iranian detached double-shell onion domes: classification and preliminary assessment of structural role

IF 1.8 3区艺术学 N/A ARCHITECTURE

Architectural Science Review Pub Date : 2022-09-27 DOI:10.1080/00038628.2022.2115974

H. Safaeipour, R. A. Khoraskani, Afsane Alizadegan

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Abstract

The detached double-shell dome comprises the outer shell, inner shell, drum, and usually stiffeners. This article closely examines a kind of stiffener, called ‘khashkhāshī ,’ within two main discussions. (I) By comparing various examples, eight cases representative of all the khashkhāshī types are selected and studied morphologically to introduce a grounded definition for khashkhāshī , encompassing twelve types assorted in three distinct structural forms. (II) By implementing a base model with variations of khashkhāshī , their different structural effects on the overall structural behaviour of the dome are analyzed using linear Finite-Element modeling subject to dead and seismic loads. Although beneficial in redirecting the force flow and decreasing the stress and span increase at the expense of added weight, khashkhāshī might cause localized inefficiencies in some cases. The obtained results are solely for a better understanding of the behaviour of the khashkhāshī , and shall not be directly used for studying individual cases.

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Khashkhāshī在伊朗独立双壳洋葱圆顶的设计:分类和结构作用的初步评估

分离的双壳穹顶包括外壳、内壳、鼓，通常还有加强筋。本文在两个主要讨论中仔细研究了一种称为“khashkhāshī”的加强器。(I)通过比较各种例子，选择了所有khashkhāshī类型中具有代表性的8个案例，并对其进行了形态学研究，以介绍khashkhāshī的基本定义，其中包括以三种不同的结构形式组合的12种类型。(II)通过实现具有khashkhāshī变化的基本模型，使用线性有限元模型分析了它们对穹顶整体结构行为的不同结构影响，这些影响受恒载和地震荷载的影响。虽然有助于重定向力流并以增加重量为代价减少应力和跨度的增加，但khashkhāshī在某些情况下可能会导致局部效率低下。所得结果仅是为了更好地理解khashkhāshī的行为，不应直接用于研究个别情况。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Architectural Science Review ARCHITECTURE-

CiteScore

4.80

自引率

8.70%

发文量

期刊介绍： Founded at the University of Sydney in 1958 by Professor Henry Cowan to promote continued professional development, Architectural Science Review presents a balanced collection of papers on a wide range of topics. From its first issue over 50 years ago the journal documents the profession’s interest in environmental issues, covering topics such as thermal comfort, lighting, and sustainable architecture, contributing to this extensive field of knowledge by seeking papers from a broad geographical area. The journal is supported by an international editorial advisory board of the leading international academics and its reputation has increased globally with individual and institutional subscribers and contributors from around the world. As a result, Architectural Science Review continues to be recognised as not only one of the first, but the leading journal devoted to architectural science, technology and the built environment. Architectural Science Review publishes original research papers, shorter research notes, and abstracts of PhD dissertations and theses in all areas of architectural science including: -building science and technology -environmental sustainability -structures and materials -audio and acoustics -illumination -thermal systems -building physics -building services -building climatology -building economics -ergonomics -history and theory of architectural science -the social sciences of architecture

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