Willis Tower Repositioning / Gensler
由专筑网小R编译
自从1973年以来，Willis大厦就一直是美国建筑的标志，同时也是芝加哥天际线的中心，2015年，当地政府开始对其进行多功能利用的再开发，希望能够全方位地重新对这座建筑进行构想，在2021年，这座110层的建筑改造已经完成，这也代表着其历史上的最大改造项目的完成，Willis大厦建造于一个单一功能的时期，但是其下一个目标则是结合了现代化功能，并且欢迎着大众。
Text description provided by the architects. Willis Tower has been an American architectural icon and centerpiece of the Chicago skyline since 1973. In 2015, a massive mixed-use redevelopment of the site began, seeking to re-envision the tower “from street to sky.” In 2021, this transformation of the 110-story property was finalized, marking the completion of the biggest restoration project in the building’s history. Willis Tower may have been built in an era of single-use buildings and urban flight, but its next iteration consists of a modern mixture of uses with active streetscapes — welcoming to all.
Gensler应用了以人为本的策略，认真思考了通过建筑来影响使用者和社区的日常生活，并且让它们更加丰富，全新的底座是曾经的红色花岗岩部分，现在则是具有欢迎感的通透裙房，其中的功能是零售和餐饮，除此之外还包含了芝加哥的城市环道，该项目的设计存在有不少挑战，比如缓解烟囱效应、地下空间结构的限制、场地安全，以及塔楼标志的保留等等，但是其中最大的挑战则是，整座建筑需要在疫情期间边改造边开放运营，其中的使用者大约有15000人。
Instituting a human-centric approach, Gensler considered how the building would impact and add value to the daily routines of both the tenants and the community. The new base, which was once a “fortress” of red granite transformed into a welcoming and transparent podium, including a varied and extensive retail and dining experience, as well as rare urban greenspace in Chicago’s Loop. There was no shortage of challenges presented throughout the process from stack effect mitigation and underground structural constraints to homeland security designations and preserving the iconic character of the tower. However, one of the biggest challenges faced was that the entire build had to be done while keeping the tower open and operational for the 15,000 tenants all while navigating an unforeseeable global pandemic in the midst of the project.
建筑的改造尊重了原有的玻璃以及金属美学，同时其集中式结构模块，给人们带来了人性化的肌理和触感，除此之外还是对丰富历史功能的致敬，建筑的街道层次有着丰富的视觉效果，在主要入口部分带来了视觉上的对比，具有欢迎感的开放式大堂模糊了工作与休闲之间的界限，给使用者提供了休息空间，结合了多种功能，也展示了令人惊叹的公共艺术。
While honoring the Tower's original glass and metal aesthetic, as well as its groundbreaking “bundled tube” structural module, the podium offers a more textural and tactile design at a human scale. Terracotta, a nod to the rich history of its usage in the Loop, was incorporated at the streetscape level to add visual interest and at the main entries to provide visual contrast. A hospitality-inspired open lobby blurs the lines between work and leisure, offering lounge space for mingling and co-working upon entry along with awe-inspiring displays of public art.
Willis大厦的室内体验以“风格、结构，以及灵魂”为主要原则，在展示现有结构的同时，还引入了特殊的材料和细节，它们会让人联想到芝加哥的著名街道，在上部结构和地面的连接处，深色铝板面层呼应了上部的塔楼特征，在Wacker Drive入口部分，人们通过柱子之间的大楼梯向上走，激发起人们进入历史场地的意向，室内外公共空间的面积大约为300000平方英尺，其中包含有餐厅、娱乐，以及零售功能，这是对经典公司Sears Roebuck & Co. Catalog的致敬，该公司是这座建筑的原使用者，很好地适应了商业空间的自然转变，其中的服务也包含有全方位的餐饮服务、体验式艺术展览，以及高端便利购物等等，除此之外，人们再向上通过天窗能够看到塔楼令人惊叹的美景。
Built under the principles of “Style, Structure, and Soul,” Willis Tower’s interior experience celebrates the existing structure while also introducing materials and details reminiscent of notable Chicago neighborhoods. Wherever the superstructure touches the ground, dark aluminum cladding visually recalls the tower above. At the entry on Wacker Drive, the user ascends via a grand staircase between columns, an intentional design element evoking the entry to a historic archeological site. Catalog—300,000 square feet of indoor and outdoor public space including new dining, entertainment, and retail—is a nod to the classic Sears Roebuck & Co. Catalog, the tower’s original tenant, and is attuned to the everchanging nature of commercial spaces. There, offerings include full-service dining with both Chicago’s emerging and widely recognized culinary talent, experiential art exhibits, and high-end convenience shopping. Looking upwards, guests encounter incredible views of the tower through an undulating 75’x85’ skylight.
Atop Catalog是一个全新的公共室外屋顶公园，占地大约30000平方英尺，配备有多种座椅和绿化景观，其灵感来源于伊利诺平原，改造部分还结合了150000平方英尺的租户专用设施，其中包括活动空间、休息区、咖啡厅，以及位于裙房楼层的健身中心。
Atop Catalog is a new, publicly accessible outdoor roof park, spanning 30,000 square feet, which is equipped with a variety of seating options and verdant landscaping inspired by the Illinois plains. The restoration also introduces 150,000 square feet of tenant-exclusive offerings, including event spaces, lounges, cafes, and a fitness center on additional floors of the podium.
伴随着改造过程，Willis大厦也发布了一项名为“Art of the Neighborhood”的动态艺术倡议活动，目的是为建筑的艺术规划提供支持与协助，两个大型永久性装置与其他公共艺术作品相类似，其中一个是芝加哥艺术学院毕业生Jacob Hashimoto的作品，该作品悬挂于Wacker Lobby，另一个则是世界知名艺术家Olafur Eliasson的作品，通过该项目，Willis大厦延续了芝加哥的传统，让世界艺术来到了城市之中，除此之外，Willis大厦还满足了极高的可持续标准，提升能源效益，减少浪费，满足LEED白金标准。
Along with the transformation, Willis Tower launched a dynamic arts initiative called Art of the Neighborhood for the art programming throughout the building. Two large-scale permanent installations, akin to other works of public art found throughout the Loop, were installed: one by School of the Art Institute of Chicago graduate Jacob Hashimoto, which hangs in the Wacker Lobby, and one by world renowned artist Olafur Eliasson, which is situated on the building’s Jackson Boulevard facade. With this program, Willis Tower continues Chicago’s tradition of making world-class art accessible to the city at large. Willis Tower also sets a standard for supertall sustainability, achieving LEED Platinum status by increasing efficiency and reducing waste.
建筑设计：Gensler
类型：多功能/办公
面积：463000平方英尺（约43014平方米）
时间：2021年
摄影：Tom Harris, Garrett Rowland
制造商：Bendheim, Boston Valley Terra Cotta, Fritz Hansen, Lutron, Sherwin-Williams, dormakaba, ARIAKE, Arflex, Armstrong, Avenue Road, B&B Italia, BLÅ STATION, Barrett Roofs, Benjamin Moore, Bloomburg, Carl Hansen, Carlisle SynTec, Carnegie, Cassina, Concrete Collaborative, +35
室内工程：Gensler
结构工程：Thornton Tomasetti
土木工程：V3 Companies
声学设计：IMEG corp
景观设计：Olin
主要负责人：Grant Uhlir
室内设计负责人：Todd Heiser, Hansoo Kim
建筑设计负责人：Benjy Ward
建筑设计指导：Michael Townsend
项目指导：Neale Scotty, Todd Desmarais
室内技术指导：Scott Marker
立面指导：Stephen Katz
立面设计：Hua-Jun Cao
室内设计：Kelly Bogenschutz
项目管理/项目负责人：Marissa Luehring
项目管理启动：Shawn Fawell
项目管理：Jeffrey Peck
项目管理品牌：Kim Lindstrom
平面设计：Pia Sachleben
外立面合作设计：SkB Architects
立面工程：Thornton Tomasetti
MEP/FP：ESD
消防安全：WJE
公园：Walker Parking
总承包商：Turner Construction Co. & Clayco Corp
城市：芝加哥
国家：美国
MIXED USE ARCHITECTURE, OFFICE BUILDINGS
CHICAGO, UNITED STATES
Architects: Gensler
Area: 463000 ft2
Year: 2021
Photographs :Tom Harris, Garrett Rowland
Manufacturers: Bendheim, Boston Valley Terra Cotta, Fritz Hansen, Lutron, Sherwin-Williams, dormakaba, ARIAKE, Arflex, Armstrong, Avenue Road, B&B Italia, BLÅ STATION, Barrett Roofs, Benjamin Moore, Bloomburg, Carl Hansen, Carlisle SynTec, Carnegie, Cassina, Concrete Collaborative, +35
Interior Designer: Gensler
Structural Engineer: Thornton Tomasetti
Civil Engineer: V3 Companies
Acoustical Design: IMEG corp
Landscape Desgin: Olin
Principal In Charge: Grant Uhlir
Interior Design Principals: Todd Heiser, Hansoo Kim
Architectural Design Principal: Benjy Ward
Architectural Design Director: Michael Townsend
Project Director: Neale Scotty, Todd Desmarais
Technical Director Interiors: Scott Marker
Technical Director Facade: Stephen Katz
Project Architect Facade: Hua-Jun Cao
Project Architect Interiors: Kelly Bogenschutz
Project Manager & Project Lead: Marissa Luehring
Project Manager Enabling Works: Shawn Fawell
Project Manager: Jeffrey Peck
Project Manager Brand/Graphics: Kim Lindstrom
Graphic Designer: Pia Sachleben
Exterior Facade Co Designer: SkB Architects
Facade Engineer: Thornton Tomasetti
MEP/FP: ESD
Fire/Life Safety: WJE
Parking: Walker Parking
General Contractor : Turner Construction Co. & Clayco Corp
City: Chicago
Country: United States
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