从总承包商沃尔特·丹尼尔斯recen人员tly installed a cross-laminated timber deck for a 19,000-sq-ft McDonald’s restaurant in Chicago. The work marked the first use of CLT as a structural material in a Chicago commercial building and one of the most extensive uses of wood in a commercial building since the Great Chicago Fire of 1871.
这座单层建筑是由当地罗斯·巴尼（Ross Barney）建筑师的创始人兼负责人卡罗尔·罗斯·巴尼（Carol Ross Barney）设计的。“卡罗尔一直在寻找使用[CLT]的机会，当这个项目出现时，我们开始研究这些可能性，这是我们决定与芝加哥市建筑部的首次会议。at whether they would allow us to use the wood deck,” says Chantelle Brewer, RBA’s senior project manager.
Asif Rahman, Chicago’s deputy buildings commissioner, “was very open to the idea and even helped us look at all the requirements, making sure we were going to fall within what was allowed by the code,” Brewer says.
CLT面板是一种由几层窑干木板制成的大规模木材形式，这些木板堆积在交替的方向上，粘合了结构粘合剂，并压制以形成固体，直，矩形元件。
Because it has only one level and is only 19,000 sq ft, the McDonald’s building, intended to replace the Chicago-based company’s flagship restaurant in the River North section, is considered “ordinary construction,” classified as Type-III-B. The city defines Type-III-B as “other than heavy timber construction in which the structural elements of the interior framing are entirely or in part of wood or other materials not more combustible than wood.”
拉赫曼说，对于一个故事，只要结构达到支持屋顶负荷的代码，就可以使用CLT。他补充说：“如果是多级别的，则代码需要一个火评估的地板系统。”
拉赫曼说，芝加哥防火局正在领导可能批准多层木材项目，这将需要一个小时的消防。18luck官网
拉赫曼说：“有了胶水层压，我们不知道这种胶在火中会如何反应。”“我们需要实际的测试。”
其他CLT projects are on drawing boards. The tallest is an 80-story residential building, designed by architect Perkins+Will with structural engineer Thornton Tomasetti, called River Beech Tower that uses CLT and glue-laminated timber.
