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Author Topic: Tall Timber Buildings  (Read 760 times)

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Offline Ron Scott

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Tall Timber Buildings
« on: September 26, 2016, 05:22:37 PM »
By Jimmy Stamp, Smithsonian Magazine

From the street, the new seven-story “T3” building going up in Minneapolis looks a lot like an old warehouse: large repeating windows and weathered steel sheathing the color of brick. But it’s a revolutionary structure, and the irony is that its cutting-edge nature rests on an old-school material: wood. When T3 opens this month, it will be the tallest modern wooden building in the United States. And to hear the architect behind the tower tell it, T3 is the future of urban construction.

The timber used to make T3 is a far cry from the pine two-by-fours used to build houses. T3 uses “nail laminated timber” (NLT) panels, crafted by stacking and fastening hundreds of two-inch by eight-inch boards together to make large, structural pieces—an update of an old technique. NLT and its cousin “cross laminated timber” (CLT), a sort of super plywood, are sized and shaped at a factory, then shipped to a construction site where they’re snapped together. In most cases, the final product is as sturdy as if it were made with steel or concrete (and just as fireproof), but lighter, quicker to build and much more environmentally friendly.

Read the full story.

Innovation related, downtown St. Paul is powered, heated, and cooled with a wood-based biomass fueled district energy system. 

Thanks to Jack Lockwood for the tip!

Online Ianab

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Re: Tall Timber Buildings
« Reply #1 on: September 26, 2016, 05:55:59 PM »
Along similar lines. New 6 story mostly wooden building in Christchurch. Replaced an old concrete structure that was badly damaged in the earthquakes.  The wooden design is rated 180% of the NEW earthquake codes.

Seems to be hybrid with vertical concrete pillars tied with wood and steel. It would be designed to move in a quake rather than trying to resist.

Weekend warrior, Peterson JP test pilot, Dolmar 7900 and Stihl MS310 saws and  the usual collection of power tools :)

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