Thomas F. Robinson
俄勒冈州波特兰。
新利18备用ENR 10/24/16 p。24
Architect is supporting a forest-to-frame movement in the Northwest by spearheading a 148-ft-tall mass-timber building project.
Thomas Robinson never designed a wood-framed building of any significant size until after he moved to earthquake-prone Portland, Ore., in 2003. Currently, he is working on his third and largest—the 90,000-sq-ft mass-timber Framework.
这位48岁的罗宾逊（Robinson）说：“我们对建造大规模木材的承诺源于对物质创新的潜力创造出色，经济和可持续性的伟大建筑的兴趣。”
与框架,它是更多than square footage that matters. At 148 ft, the multiuse building, designed for a site in Portland, is on deck to be the tallest mass-timber building in the U.S. It is also on course to be the only building with a timber “rocking-wall” core. The vertically post-tensioned system minimizes quake damage by swaying in a temblor and then returning to a plumb position. When completed next year, the 130-ft rocking wall will be the world’s tallest.
“托马斯不断驱使我们在技术预算非常紧张的范围内进行创新并推动信封，”框架消防工程师Arup的负责人David Barber说。
建造一个12层的质量架框架（即使具有创新的地震设计）并不像获得管辖权当局的批准那样困难。美国建筑官员怀疑木材的防火性，将木材框架限制在四到五层。
为了缓解建筑官员的恐惧，框架团队必须通过基于性能的设计和组件测试来证明该结构（尤其是钢柱之间的圆柱连接）可以在没有洒水器的情况下承受两小时的火灾。
To smooth the path toward approval, Robinson approached building officials at the very start of the project. “Performance-based design is a much more involved process, as it almost always requires an independent peer review, extensive computer modeling of seismic and fire designs, and large-scale component testing,” says Robinson. “We have all of these in Framework.”
建筑部门在国家和城市的水平are behind the project. “We have received design-review approval from the city of Portland as part of the land-use review process,” says Robinson. The state authority that issues building permits is currently reviewing the completed set of drawings. Robinson expects a green light within weeks. If all goes as planned, work will begin in March and take 13 months.
The permit application relies on first-of-a-kind fire tests, which demonstrated that properly designed and detailed structural mass timber can achieve a two-hour fire rating—equivalent to the rating of steel or concrete. The tests were funded by a $1.5-million design-competition prize from the U.S. Dept. of Agriculture, in partnership with the Softwood Lumber Board and the Binational Softwood Lumber Council.
在测试之前，在美国境外只进行了五次火灾测试，在该测试中，标本获得了一个小时的评分。没有人获得1.5小时的评分。巴伯说：“托马斯并不真正相信我甚至没有人接近两个小时，所以我给了他一张火测试桌。”
Soon after, Robinson asked whether a two-hour rating was technically feasible. Barber’s answer was “yes, but it could all end in tears.” According to Barber, Robinson replied, “That is exactly the type of problem we should be trying to solve.”
The architect’s interest in wood dates to his youth. Family trips exposed him to an all-wood Cape Cod cabin, built in 1928 by his paternal great-grandfather, and a 1785 wood house in Germany, renovated by his maternal grandfather. “Those special places had a lasting effect on me,” he says.
Robinson is taking wood framing beyond the single project by nurturing a fledgling forest-to-frame movement in the Northwest, which, like the farm-to-table movement for restaurant food, is trying to strengthen the local supply chain for the renewable material, especially for cross-laminated timber.
“托马斯·罗宾逊（Thomas Robinson）了解在美国实现和实施大规模木材所需的广泛，一致的努力，”框架开发商Project^的合伙人AnomeleyHallová说。“他的愿景不仅象征着使用可持续建筑材料的新篇章，而且还可以通过农村和城市经济体的相互作用来促进创造就业机会和可行的新经济。”
