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Underwood-Pavilion, Muncie, IN, United States

Tuesday 30 Sep 2014
 

Geometric pavilion launches First Thursday Art Event

 
Underwood-Pavilion by WAN Editorial in Muncie, IN, United States
Gernot Riether 
 
Underwood-Pavilion by WAN Editorial in Muncie, IN, United States Underwood-Pavilion by WAN Editorial in Muncie, IN, United States Underwood-Pavilion by WAN Editorial in Muncie, IN, United States Underwood-Pavilion by WAN Editorial in Muncie, IN, United States Underwood-Pavilion by WAN Editorial in Muncie, IN, United States
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Editorial

Gernot Riether's latest geometrically influenced travelling pavilion - an investigation in parametric Tensegrity structures 

Teaming up with the local Indiana art community, Digital Design Studio, directed by Gernot Rheither and Andrew Wit of Ball State University, have created The Underwood Pavilion. The travelling pavilion is an exploration of geometry, tension and integrity and celebrates the qualities and potentials of Indiana’s post-industrial landscape through attracting people to places that are not generally considered public space.

The Underwood Pavilion is situated close to Muncie, a 70,000 inhabitants city in central Indiana and launched Muncie’s First Thursday Art Event. The pavilion will turn various city-wide locations within the post-industrial landscape into art spaces. Positioned at a narrow stretch of land between two man-made fishing ponds the pavilion draws attention to its surrounding landscape by framing views of the lake, apple trees and a nearby forest. The pavilion is constructed from 56 different modules that are forming a self-shading structural system creating a cool environment in the hot summer months of Indiana.

Lightweight structure:
The Underwood pavilion’s modules were developed from different variations of a 3strut Tensegrity module. Varying the distance between the upper face and the lower face and varying the scale between the upper face and the lower face of the module informed the curvature of the envelope.

These variations also generated a different rotation within each module causing the envelope to twist in different directions. The structural simulation engines Rhino Membrane and Kangaroo were essential tools in the form finding process of the pavilion’s structure. The final Tensegrity state of a module could only be reached with all cables in tension and all bars in compression. The entire system remained loose with all members being connected except one. This allowed for the modules to be stacked and transported efficiently as a loose low–volume bundle of bars and cables (3 ft x 3 ft x 6 in). At the site of construction only one cable per module had to be joined. Using a turnbuckle to connect the final node allowed regulating the stress in the module until it snapped into the predicted Tensegrity geometry. Each of the 56 modules describes a volume of 3 ft x 3 ft x 3 ft to 4 ft x 4 ft x 4 ft.

Self-shading envelope:
To respond to a specific context the modules were arranged in a Tensegrity pattern. Skipping every second module in every second row created smaller and larger openings that were placed to frame the environment. Elastan, an eco-friendly polymer originally used for sportswear was adapted to create the pavilion’s self-shading envelope. Elastan is created from filaments that are more durable than non-synthetic materials such as rubber. It can be produced from 100% renewably sourced raw material such as recycled polyester. Once all modules were connected each module was dressed with an elastic fabric to form a minimal volume that was defined by the location of the struts and the elastic quality of the fabric.

Tensegrity structures have large advantages compared to other structural systems. Using predominantly tension members they are lighter and stronger than conventional systems. As temporary lightweight structure the Underwood pavilion additionally takes advantage of the self-erecting behavior of Tensegrity systems. Using physics engines as a design tool shows how Tensegrity systems can be parameterized to adapt to site and program.

Acknowledgments:
Faculty: Prof. Gernot Riether, Prof. Andrew Wit
Students: Noor Al-Noori, Andrew Heilman, Chris Hinders, Charles Koers, Huy Nguyen, Nick Peterson, Steven Putt, Ashley Urbanowich
Grants and support: Ball State University, Department of Architecture, Chair: Prof. Mahesh Daas,
Community partner: Muncie Makers Lab
Promotion of art event: The Star Press, Muncie Indiana
http://www.thestarpress.com/story/life/2014/09/03/first-thursday-september/15026767/
All photographs and graphics © Gernot Riether

Key Facts

Client
Status Completed
Value Undisclosed(m€)
WAN Editorial
worldarchitecturenews.com

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