架构师提供的文本描述。东自由社区图书馆位于匹兹堡的一个城市街区，位于匹兹堡的卡内基图书馆，为匹兹堡最具经济和种族多样性的居民提供服务。边缘工作室与匹兹堡卡内基图书馆(CLP)合作，全面翻修了现有的33，000 SF，1967年设施，并提供了9，000 SF加载项，从而促进了图书馆服务的全面重组。该设施包括成人、青少年和儿童部门的藏品和服务、4间会议室、办公室和工作间后面，以及一个高密度的存储空间，可容纳15万册被称为“传统藏书”的历史藏书，以及中央图书馆业务的增长空间。为了提高图书馆提供服务的能力，该设施进行了大幅度的改造。

Text description provided by the architects. Located on an urban block in Pittsburgh, the Carnegie Library of Pittsburgh, East Liberty neighborhood library serves one of the most economically and racially diverse populations in Pittsburgh. EDGE studio worked with the Carnegie Library of Pittsburgh (CLP) to fully renovate the existing 33,000 sf, 1967 facility and provide a 9,000 sf addition which facilitates a complete reorganization of library services. With adult, teen and children’s department collections and services, 4 meeting rooms, back of house offices and workrooms, and a high density storage space for 150,000 historic volumes known as the ‘Heritage Collection,’ along with growth space for central library operations, the facility was dramatically reshaped to improve the library’s ability to provide services.

 © Ed Massery

C.埃德·马塞里

现有的建筑被彻底改造了，拆除它的非绝缘的，单一的玻璃围护和扩大结构，扩大设施，并使建筑的形状，将有一个更大的视觉形象，当接近所有附近的街道。从毗邻的大型新哥特式教堂获取正式的线索，新图书馆建筑被包裹在折叠的雨幕皮肤中，以揭示阴影和光线的深度。在较高的楼层，大楼延伸到楼盘线以外，延伸到主要街道的观景走廊，使第一次游客更容易看到，也更能让游客看到。

The existing building was completely transformed by removing its un-insulated, single glazed envelope and expanding the structure to enlarge the facility and to give shape to a building which would have a greater visual presence when approached from all nearby streets. Taking formal cues from the adjacent, grandly scaled neo-gothic church, the new library building is wrapped in a folded rain screen skin articulated to reveal depth in shadow and light. At the upper floors, the building extends beyond the property lines to stretch into the view corridors of major streets, making it more visible to first time visitors and screening.

两个主要入口彼此相对，中间是客服(流通)台，欢迎从一边乘公共汽车来的游客，另一边是把车停在公共停车场的游客。新的外墙组件有助于提供一个高度可持续的建筑与一个热优越的信封。高效的机械系统，以及低能耗的照明装置和灯具，以及低用水的管道系统有助于保持低的运营成本。

Two main entrances, located opposite each other with the Customer Service (circulation) desk located between them welcome visitors who arrive by bus on one side, and those who park their car in the public lot, at the other side. The new exterior wall assembly helps to provide for a highly sustainable building with a thermally superior envelope. Efficient mechanical systems, along with low energy use lighting fixtures and lamps, and low water use plumbing systems help keep operating costs low.

 © Ed Massery

C.埃德·马塞里

在内部，对空间进行了重新安排，将所有主要图书馆服务，包括成人、青少年和儿童部的服务安排在一层，最大限度地减少工作人员的视线，以尽量减少所需人员。可访问性，无论是物理上的还是视觉上的，对游客的体验都很重要。图书馆欢迎其多样化的客户群，而且所有游客都可以在进入后立即进入该空间，以确保服务能被轻易地感知到。膨胀的窗户，让自然光进入和观看，二楼高悬控制眩光通过应用太阳模型确定建筑物，为公共空间提供舒适的，轻的填充空间，理想的阅读和电脑使用。

At the interior, the space was reorganized to locate all of the main library services, including adult, teen and children’s department services on a single floor with maximum staff sight lines to minimize staffing requirements. Accessibility, both physical and visual, is important to the visitor experience. That the library is welcoming to its diverse customer base, and that all visitors can orient themselves to the space immediately upon entry ensures that services are readily perceived. Expansive windows which let natural light in and views out, with glare controlled by second floor overhangs determined by applying solar modeling to the building, provide the public spaces with comfortable, light infused spaces ideal for reading and computer use.

 © Ed Massery

C.埃德·马塞里

中庭连接一楼和二楼。在二楼，提供了四个会议室，其中两个可以通过折叠声隔板组合成一个大房间，同时提供开放的办公空间，供中央图书馆使用。用于杂项储存的较低级别已进行了翻修，并提供了机械系统，以容纳高密度的历史材料储存。

An atrium connects the first floor to the second floor. At the second floor, four meeting rooms, two which can be combined by way of a folding acoustic partition into one large room, were provided along with open office space for central library operations. The lower level, which had been utilized for miscellaneous storage, was renovated and mechanical systems provided to accommodate high density storage of historic material.