© Nic Lehoux

C.Nic Lehoux

架构师提供的文本描述。伊迪丝格林温德尔怀亚特(EGWW)联邦大厦是一个现有的18层，512，474 SF办公大楼位于波特兰市中心。该建筑于1974年完工，其MEP系统已破旧过时.除了更新建筑系统、更新工作环境和改善无障碍环境外，设计还需要满足最近行政命令中严格的节能和节水要求。有了支持植物生长和提供自然生态系统的独特的“芦苇”立面，每个立面的遮阳度都会降低太阳的增益，并有一个屋顶天篷，支持180千瓦的光伏阵列，同时收集雨水-该项目突破了设计的界限。景观和建筑之间的紧密联系，为这座城市建筑的重生提供了一个独特的环境，有一条攀缘藤蔓的挂毯，是每一次太阳照射所独有的，传达了GSA对城市的绿色承诺。

Text description provided by the architects. The Edith Green-Wendell Wyatt (EGWW) Federal Building is an existing 18-story, 512,474 sf office tower located in downtown Portland. Completed in 1974, the building’s MEP systems were worn out and out-dated. In addition to upgrading building systems, updating the work environment and improving accessibility, the design also needed to meet the stringent energy and water conservation requirements of recent executive orders. With a unique facade of “reeds” that support plant growth and provide a native ecosystem, shades tuned for each facade to reduce solar gain, and a roof canopy that supports a180 kW photovoltaic array while collecting rainwater - the project pushed design boundaries. The strong connection between the landscape and the building, provides a unique setting for the re-birth of this urban building, with a tapestry of climbing vines, unique to each solar exposure, communicating GSA’s green commitment to the City.

 Entry Level Floor Plan

入门层平面图

主要的设计目标是将现有的建筑从一个老化的，能源消耗的建筑转变为全国首屈一指的环境友好型建筑之一。从一个高性能绿色建筑(HPGB)车间开始，该车间确定了各种潜在的节能措施(ECM)，设计团队用了3个月的时间分析了哪些措施使用物理、虚拟和能源模型带来了最佳价值。在团队完成分析之后，设计卓越的建筑师开始将数据转换成一个综合的美学表达。重点是在情感和身体两方面宣传可持续性措施。

The primary design goal was to transform the existing building from an aging, energy hog to one of the premiere environmentally-friendly buildings in the nation. Starting with a High Performance Green Building (HPGB) Workshop that identified a variety of potential Energy Conservation Measures (ECM’s), the design team spent 3 months analyzing which measures brought the best value using physical, virtual, and energy models. After the team completed the analysis, the Design Excellence Architect began the process of translating the data into a synthesized aesthetic expression. The focus was to communicate the sustainability measures on both an emotional and physical level. 

 Axonometric

 © Nic Lehoux

C.Nic Lehoux

此外，这座建筑的翻新为一座世纪中叶的高层建筑如何重新利用和适应新的功能和要求开创了先例，这也是另一项重要的绿色战略。认识到这一点，设计刻意揭示了建筑的历史，通过将旧钢和混凝土与现代玻璃栏杆和光滑的墙壁并置，展示了EGWW最初建造者的文物。

Additionally, the building renovation sets a precedent for how a mid-century high rise can be reused and adapted to new functions and requirements, another important green strategy. Recognizing this, the design deliberately reveals the history of the building, exposing the artifacts of EGWW’s original builders by juxtaposing the old steel and concrete with modern glass railings and smooth walls.

 © Nic Lehoux

C.Nic Lehoux

 © Nic Lehoux

C.Nic Lehoux

与现有建筑相比，EGWW节省了60%的能源，它是GSA在全国范围内的一个示范项目，既是一个主要的联邦办公空间，也是一个节能改造项目。由此产生的LEED白金项目预计将超过ARRA的要求，并有望成为美国能耗最低的建筑之一。

With an energy savings of 60% compared to the existing building, EGWW is a model project for GSA nationwide, both as a premier federal office space and as an energy efficient renovation project. The resulting LEED Platinum project, is projected to exceed the requirements of the ARRA, and is on track to being one of the lowest energy use buildings in the US. 

 © Nic Lehoux

C.Nic Lehoux

 © Nic Lehoux

C.Nic Lehoux

Architects Cutler Anderson Architects, SERA Architects

Location 1220 Southwest 3rd Avenue, Portland, OR 97204, United States

Category Office Buildings

Project Year 2013

Photographs Nic Lehoux

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