© Tom Harris

(汤姆·哈里斯)

架构师提供的文本描述。你花75，000美元能买到多少？芝加哥地平线公司通过寻求建造尽可能大的平木屋顶来探讨这个问题。使用交叉层压木材，一种新的碳负极工程木材产品，在最大的商业规模，该亭的目的是为建筑双年展和芝加哥海滩游客提供过剩的公共空间。

Text description provided by the architects. How much kiosk can you get for $75,000? Chicago Horizon probes this question through a quest to build the largest flat wood roof possible. Using Cross-Laminated Timber, a new carbon-negative engineered lumber product, in the largest dimensions commercially available, the kiosk aims to provide an excess of public space for the Architecture Biennial and Chicago beach-goers.

 Floor Plan

慷慨的56英尺的广场提供了一个建筑借阅图书馆和避风港的元素，它在千年公园，后来成为一个巨大的遮阳树冠俯瞰密西根湖内的商业销售空间。芝加哥地平线在不同的天平上表现出轻盈，从8英尺悬停的屋顶飞机到观景台和自动售货亭，这些都是悬挂在屋顶上的链条围栏，没有任何额外的支撑。

The generous 56-foot square offers an architectural lending library and shelter from the elements during its time in Millennium Park, and later becomes a large shading canopy overlooking Lake Michigan with space for commercial vending within. Chicago Horizon expresses lightness at a variety of scales, from the 8-foot hovering roof plane to the viewing platform and vending kiosk, which are suspended from the roof using chain-link fencing without any additional supports.

 © Naho Kubota Photography

Naho Kubota摄影

屋顶的横向延伸重新校准了芝加哥两个极端景观的经验：在地面层面，密歇根湖地平线占主导地位，形成了地面和树冠之间的一条对称线。从观景台上看，屋顶变成了一个新的人工地平线，遮住了前景，强调了在抽象的浮动平面之上漂浮的芝加哥垂直天际线。

The lateral reach of the roof recalibrates the experience of two extremes of the Chicago landscape: at ground level, the Lake Michigan horizon dominates, forming a line of symmetry between ground and canopy. From the viewing platform, the roof becomes a new artificial horizon, shutting out the foreground and emphasizing the floating vertical Chicago skyline above an abstract floating plane.

 © Tom Harris

(汤姆·哈里斯)

展馆屋顶结构体现了平板原理(在混凝土结构中的典型应用)在木材材料中的应用。两层CLT面板-每一层朝向每个主方向，每一外层纵向8英尺宽的56英尺长的面板-组合成一个双向支撑板，由各柱支撑。每一层沿面板的方向弯曲，上下层提供相邻面板之间的剪切传递(反之亦然)。其结果是一个惊人的薄8.25英寸的屋顶结构，跨越30英尺之间的柱子。

The pavilion roof structure represents the application of the principles of flat plate (typical to concrete construction) to the material of wood. Two layers of CLT panels—one layer oriented in each principal direction, and each outer layer oriented lengthwise to the 8-foot-wide by 56-foot-long panels—combine to form a two-way spanning plate supported at points by columns. Each layer carries bending in the direction of the panel, with the layer above or below providing shear transfer between adjacent panels (and vice versa in the other direction). The result is a surprisingly thin 8.25-inch roof structure that spans upward of 30 feet between columns. 

 © Naho Kubota Photography

Naho Kubota摄影

 © Naho Kubota Photography

Naho Kubota摄影

柱连接到屋顶板，使用螺栓固定在柱上的钢舌板，该钢舌板通过CLT中的一个槽穿过一个水平板，从上面连接到CLT面板，它隐藏在屋顶和防水下面。柱本身是简单的胶合层合部分，由一个类似的舌板在底部保持地面。观察平台是由一个链式围栏支撑的，沿着洞口到屋顶的边缘保持着张力，使用钉焊缝来构造钢的角度，为洞口提供框架。整个系统的细节，材料的使用，和它的性能作为一个双向板的概念简单，这种潜在的简单补充了系统的效率。

The columns connect to the roof plate using steel tongue plate bolted to the columns, which passes up through a slot in the CLT to a horizontal plate that connects to the CLT panels from above, hidden below the roofing and waterproofing. The columns themselves are simple glued laminated sections, held off the ground by a similar tongue plate at the base. The observation platform is supported by a chain-link fence held in tension along the edge of the opening to the roof using tack welds to structural steel angle framing the opening. The overall system is simple in its detailing, use of materials, and conception of its performance as a two-way plate, and this underlying simplicity complements the efficiency of the system.

 © Naho Kubota Photography

Naho Kubota摄影

Architects Yasmin Vobis & Aaron Forrest

Location Lakefront Trail, Chicago, IL 60605, USA

Category Pavillion

Project Year 2015

Photographs Naho Kubota Photography, Tom Harris

Manufacturers Loading...