波斯波利斯入口馆是一个200平方米的开放空间，位于伊朗著名的联合国教科文组织世界遗产地波斯波利斯的入口处，是一个多功能的展馆。我们的团队开发了一种间接建模算法，以空间的轴线为核心，间接指导形式的寻找和几何。通过这种策略，”中轴面 “是通过控制轴线而产生的，这消除了对表面几何形状的直接控制。

Persepolis Entrance Pavilion is a 200 sqm open-space, multi-functional pavilion located at the entrance of Iran’s renown UNESCO World Heritage Site, The Persepolis. The form finding process is guided by an indirect modelling algorithm dealing with axial lines of the space at its core, developed by our team which indirectly guides form finding and geometry. Through this strategy, “Medial Surfaces” are derived by controlling axial lines which eliminates direct control over the surface’s geometry.

通过这种方法产生的双曲面将空间划分为3个主要区域：入口、供客人使用的贵宾室和主厅，主厅是项目的核心部分，为各种文化活动提供聚集区，如展览、讲座、图书出版活动等。

The doubly curved surface produced by this method divides the space into 3 main zones: the entrance, a VIP room for guests and the main hall, which is the core part of the project and provides a gathering area for a variety of cultural events, such as exhibitions, lectures, book publishing events, etc.

从合理化的角度来看，为了应对有限的执行预算，双曲面被转化为平面四边形面板，以实现简单的可施工性。通过提取准最小曲面的共轭线网并连接交叉节点，一组平面四边形单元被定义。然后用铝板材料生产这些平面四边形，通过激光切割板材，然后用数控折弯机折弯边缘。

From a rationalization approach, the doubly curved surface is translated into planar quad panels for simple constructability in response to a limited execution budget. By extracting the conjugated line network of the quasi-minimal surface and connecting the intersection nodes, a set of planar quad cells were defined. These planar quads were then produced from aluminum sheet material, by laser cutting the sheet and then bending the edges using a CNC bending machine.

通过对双曲线表面的平面四边形面板进行智能几何合理化，制造和施工成本大幅降低。这种通过数学驱动的算法对复杂的几何形状进行简化的做法降低了成本，而不考虑几何形状的核心复杂性。这种合理化策略将建筑成本降低到200英镑/平方米。

Fabrication and construction costs are drastically reduced through the intelligent geometric rationalization to planar quad panels of the doubly curved surface. This simplification of the complex geometry through mathematically driven algorithms reduces costs regardless of the core complexity of the geometry. This rationalization strategy reduced the construction cost to 200 GBP/sqm.

由于联合国教科文组织对世界文化遗产上的建筑有独特的规定，该馆是一个半临时性的结构，没有砌体材料或永久性建筑技术。因此，该馆可以在任何时候从现场拆除。亭子的每一块木质结构，在几何特性上都是独一无二的，都是预制的，并部署到施工现场，包括铝板。

Due to UNESCO’s unique regulations related to construction on World Heritage Sites, the pavilion is a semi-temporary structure, constructed without masonry materials or permanent construction techniques. Hence, the pavilion is dismountable from the site at any given time. Each piece of the wooden structure of the pavilion, which is unique in terms of geometrical properties, is pre-fabricated and deployed to the construction site, including the aluminum panels.

该项目在短短2个月的时间内就完成了制作和组装，这得益于预制的施工方法，同时也确保了在需要时能轻松拆卸展馆。

The project was fabricated and assembled during a mere 2 month period facilitated by the pre-fabricated approach to construction, while ensuring easy dismantling of the pavilion as needed.

Architects: theAlliance
Area: 200 m²
Year: 2019
Photographs: Deed Studio
Manufacturers: Compars, North Star Lighting, Sveza
Design :Mehrad Mahnia, Alireza Bayramvand
Geometrical Rationalization :Mehrad Mahnia, Alireza Bayramvand
Detail Design :Mehrad Mahnia, Alireza Bayramvand
Wooden Structure Consultant :Mohammad Panahi, Behrang Bani Adam
Steel Platform Structure :Alireza Miri
Wooden Structure Modelling And Analyzing :Reza Fattahi
Fabrication Director :Mehrad Mahnia
Fabrication Team:Hassan Asnavandi, Mohammad Mahdi Sefidi, Alireza Bayramvand, Nima Safari, Soroush Asadi, Aria Sanei, Ehsan Alereza, Saman Zaree
City:Marvdasht
Country:Iran