Duke Ellington School of the Arts
Washington, D.C.
Best Project, K-12 Education
Key Players
Owner:哥伦比亚公立学校|DGS
领导设计公司：Cox Graae + Spack Architects
General Contractor:GCS |西加尔
Civil Engineer/Field Surveying:AMT LLC
结构工程师：RESTL Designers
MEP工程师：Global Engineering Solutions
Connection Engineer:Conn Shaffer
景观设计师：Landscape Architecture Bureau
钢详细信息：WSP
分包商：Radius Track Corp. (Cold-Formed Steel Design & Fabrication); Banker Steel (Steel Fabricator); LR Willson (Steel Erector); McClure Engineering (3D Surveying); Performance Contracting (Framing and Finish)
按照严格的26个月时间表工作，在承包商的保证最高价格为1.45亿美元的情况下，埃灵顿艺术学院的设计建设团队在2017-18学年之前完成了该项目。该小组孵化了265,000平方英尺的翻新，扩展和现代化概念，为国家衰老的国家地标增加了戏剧性的设施。
前门廊结构以前称为西方高中，其历史可追溯到1898年，随后在1900年代初期增加。GCS项目主管Dan Waldo |Sigal（总承包商）是团队将项目分为三个单独的领域。前门廊部分是一种传统的历史翻新，在内部装饰和重塑内部时保留了立面。该项目上一些最直观的工作是在建筑物的中间部分，该区域完全陷入困境，为一个新的四层楼中的中庭铺平了道路，其中有一个800个座位的鸡蛋形剧院悬挂在中心。在背面，安装了新的基础，对两个现有的楼层进行了翻新，并增加了两个新的上层楼层。沃尔多说：“我们像三个单独的项目一样对待它。”18luck官网“每个人都有自己的复杂性，他们都必须彼此联系。”
沃尔多（Waldo）表示，由于重大的结构复杂性，项目范围通常从前到后面流动，而不是同时进行所有三个部分的工作。尽管贸易在正面部分进行，但中间和背部结构的详细信息仍在进行中。沃尔多说：“同时发生了很多复杂的事情，以至于该团队需要向所有气缸射击。”
To work on the middle section, the front and back sections needed to be underpinned so a new foundation and a one-level underground parking structure could be added to the middle. From there, the four-story atrium could take shape and make way for the 580-ton curved theater. Due to the curvature of the structural steel in the theater, extensive 3D modeling was required to ensure accurate fabrication and installation. Shawn Sinnett, WSP’s project manager and structural steel detailer, says intensive coordination helped maintain the envelope for the theater’s shell. “We had to overlay the architectural models with our steel model to make absolutely sure that we didn’t poke through the [theater’s skin],” he says.
The egg theater, which appears to be suspended over the cafeteria, is supported by five tightly spaced columns. “The columns were not spaced far apart enough to provide a lot of stiffness,” says Bill Yun, RESTL Designers’ structural engineer. “We had to figure out the best way to make the support system work and do it very efficiently.”
In one portion of the structure, a single column supports two “scorpion tail” structural steel members that extend out nearly 30 ft from center, then curve up to the theater’s roof. Yun says that a 6-in.-thick plate to accommodate varying geometries “took a full day to figure out what could and could not be done—how to erect it and get it to fit in the field.” Yun says the effort was the most complex project he has ever worked on and couldn’t have been done without 3D modeling and input from the architect, fabricator and detailer.
安装弯曲的结构成员也是一个重大挑战。沃尔多说：“将它们置于适当位置并在顶部和底部进行焊接的唯一方法是将它们飞进去，将它们坐在板上，将它们焊接到一列，并在屋顶结构上将其绑在一起。”“有150个不同的钢铁成员必须对其进行激光扫描。由于蝎子尾巴的复杂几何形状，WSP不得不详细介绍支撑。支撑必须是正确的高度才能使其位于正确的位置，因此我们可以建立正确的联系。”
中心中庭上有天窗屋顶，使空间更具开放感，并将更自然的光线带入建筑物。Cox Graae + Spack Architects的建筑师克里斯·安布里奇（Chris Ambridge）说，原始建筑物的“兔子沃伦”空间很难导航。他说：“就设计而言，中庭创造了一个围绕着中心空间旋转的地方。”“建筑物中几乎所有的空间都直接连接到中庭或关闭。很难迷路。您总是在中庭周围的某个地方。”
提供自己的challe大楼的后面部分nges. Sinnett says the new structure in the center of the building had to tie into the existing structure in the back section. Because of the precise requirements of the new structure, the team did 3D laser-scanning of the existing structure so it could be added to the digital structural model. To allow for maximum adjustability in the field, the team designed connections with long slots with up to ¼-in. tolerances.
The completed building has new studio, performance and rehearsal spaces. Exterior elements include an outdoor plaza placed at the top of the sloping front lawn, a media reading room terrace sheltered under the two-story portico and an education terrace on the theater roof. Ten trade contractors won Washington Building Congress Craftsmanship Awards for work on the project.
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