木塔研究项目

超妹大爱infini

所 在 地：美国 芝加哥

SOM's Timber Towers

国际知名的SOM事务所（Skidmore， Owings and Merril）最近公布了他们的“木塔研究项目”的成果，提出可以用木材来建设摩天大楼，来减少碳排放量。根据美国环境保护局的资料显示，建筑占了能源总用量的36%，而城市钢筋混凝土结构的建筑的碳排放量比例也十分高。SOM的设计可以减少高达75%的碳排放量。他们将这个研究系统应用到了1965年设计的建筑中，这个位于芝加哥的Dewitt－Chestnut公寓楼有120米高，共有42层。他们只在一些结构加强部分使用了混凝土材料，这样整个建筑比一般建筑少用了很多钢材和混凝土。SOM坚信，从结构工程、建筑、室内布局和建筑功能的角度来看，这个系统在技术上完全可行。他们还将继续研究，进行一些力学试验，来检验这个结构系统的性能。虽然这个系统会提高造价、增加施工难度和必要的消防设备，但是SOM还是已经开始说服城市设计者、建筑师和其他工业设计师来加入这个计划，为更加有效的城市建筑铺路。
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The internationally renowned design firm Skidmore， Owings and Merril (SOM) just published the findings of their “Timber Tower Research Project，” which proposes constructing skyscrapers with timber in order to reduce their overall carbon footprint. According to the US Environmental Protection Agency buildings account for 36 percent of total energy use， and tall structures in urban jungles built with metal and reinforced concrete have a particularly high carbon footprint. SOM’s design has the potential to slash the carbon footprint of these tall towers by up to 75%. SOM applied their structural research system to an existing building designed by them in 1965. The Dewitt-Chestnut Apartment complex in Chicago is 395 ft tall and has 42 stories. The firm’s timber tower research revealed that reinforcing mass timber towers with concrete only at certain stress points， such as the joints， would result in a perfectly sound structure that requires zero steel， and much less concrete than a comparable building.“SOM believes that the proposed system is technically feasible from the standpoint of structural engineering， architecture， interior layouts， and building services，” according to a recent statement. They add however that “Additional research and physical testing is necessary to verify the performance of the structural system.”This system also improves cost and constructability and provisions have been made for fire protection. However， the firm already anticipates resistance to the design， and therefore urges urban planners， architects and others in the design industry to work with code officials and municipalities to pave the way for more efficient tower construction.

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