TOKYO — Japan's Sumitomo Forestry Company has unveiled plans to construct a 350-meter-tall wooden skyscraper in Tokyo.<br /><br />The 70-storey building would consist of 10% metal and 90% percent wood, with balconies that span all sides. Sumitomo says the interior of building will be made of pure wood, and will contain 8,000 homes.<br /><br />The building would use a brace tube structure system made from timber and steel. This comprises a column and beam framework, with steel braces inserted diagonally. This is meant to protect against deformation from forces such as wind and earthquakes. <br /><br />Sumitomo hopes to complete the building come 2041 to mark their 350th anniversary.<br />The estimated cost of the project is 600 billion yen, or 5.6 billion dollars.
