Sumit Singhal loves modern architecture. He comes from a family of builders who have built more than 20 projects in the last ten years near Delhi in India. He has recently started writing about the architectural projects that catch his imagination.
Woods of Net in Ninotaira, Japan by Tezuka Architects + TIS & PARTNERS
June 17th, 2011 by Sumit Singhal
Article source: Tezuka Architects + TIS & PARTNERS
This is a permanent pavilion for a net artist, Toshiko Horiuchi Macadam. The artist knitted the net entirely by hands, which is designed for children to crow in, roll around, and jump on the net. It was easy for us to see the artwork being outside even when it cannot be exposed to rain or ultraviolet light. We wanted to design a space as soft as the forest where the boundary between outside and inside disappears. The space attracts people like campfire. The children play inside of the net just as fire and parents sit around and lay on the woods.
The structure is entirely composed of timbers without any metal parts. 320 cubic meter of timber members are used and there is nothing same among all the 589 members. The latest structural program was developed for the pavilion, but the joint techniques are derived from thousands years old Japanese wooden temples in Nara and Kyoto. As long as the proper maintenance is done, it is capable of existing over 300 years. This is the oldest and the latest structure in the world.
Cutting Edge Structural Analysis
The entire structure was designed on a computer. The data was loaded into a CNC milling machine capable of carving shapes to the precision of 0.1millimeters. The carpenters then finished the pieces, lifted them by a crane, and joined them utilizing the very same techniques carpenters used four hundred years ago.
The structural engineer, Professor Imagawa, developed a cutting-edge structural analysis program specifically for the pavilion. The program analyzed this new bending joint system overcome the variable characteristics of timbers. Through his analysis, he proved the traditional technique was structurally sound.
Detail of Joints
The members are solely connected by dowel pins and wedges, this Japanese traditional method could not be employed a few years ago under the strict japanese building codes.Each member has a different size in order to carry different kinds of loads from different directions. Each member has a complex shape so that water easily drains to prevent the wood from warping.
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