Michael Maltzan Architecture completes Ribbon of Light bridge with swooping arches in LA
由专筑网小R编译
Michael Maltzan建筑事务所在洛杉矶设计完成了全新的第六街区高架桥，这座桥有着多个混凝土拱门，下方安装有照明系统，因此得名为“光带”。
这座桥梁长度为3500米，由混凝土和钢材建造，它取代了原有建造于1932年的“6th Street Viaduct”桥体结构。
原来的桥体只服务于机动车，而全新的光带桥则横跨洛杉矶河、美国101高速公路，以及当地的社区，同时服务于机动车、非机动车，以及行人。
Michael Maltzan Architecture has completed the new Sixth Street Viaduct in Los Angeles, also named the Ribbon of Light for its multiple concrete arches lit from below.
The 3,500 metre-long (1,067-metre) concrete and steel bridge replaced a deteriorating structure, called the 6th Street Viaduct, that was built in 1932.
While the previous structure only serviced cars, the Ribbon of Light, which stretches over the Los Angeles River as well as the US 101 highway and local neighbourhoods, is also geared towards bicycles and pedestrians.
▲ Michael Maltzan建筑事务所完成了洛杉矶光带桥的设计
Michael Maltzan Architecture has completed the Ribbon of Light in Los Angeles
来自洛杉矶的Michael Maltzan建筑事务所认为：“该项目希望能够克服原有基础设施所带来的影响，激发区域的活力和连通性。”
桥梁有10对拱门，下方设置有灯光，因此而得名“光带桥”，项目的参考来源于6th Street Viaduct高架桥，这座桥梁就应用了特别的拱门。
"It seeks to overcome the silo effect caused in the past by infrastructure, countering it with the vibrancy and connectiveness of a 'civicstructure,'" said LA-based Michael Maltzan Architecture.
The structure has ten ribbon-like pairs of arches that are lit on the underside, giving the bridge its name. These were designed in reference to the old 6th Street viaduct, which had distinctive arches.
▲ 桥梁有着10对混凝土拱门
The bridge has ten pairs of concrete arches
光带桥将城市的东部街区和西部市区，以及艺术街区连接在一起。
桥体主要通过混凝土和钢建造，其宽度为100英尺（约30.48米），半径为5000英尺（约1524米）。
建筑师说：“全新高架桥的高拱门位于洛杉矶河之上，这是在向原有的桥梁设计致敬，而另外一对更高一些的拱门则对应着东边门户。”
The Ribbon of Light will connect the Boyle Heights neighbourhood in the east of the city with the western Downtown and Arts District.
Constructed primarily from concrete and steel, the bridge is 100 feet (30.48 metres) wide and curved along a 5,000 foot (1,524 metres) radius.
"Paying homage to the design of the earlier bridge, the new viaduct places the tallest pairs of its sculptural arches over the LA River, where the original arches stood, and positions another taller pair as a gateway on the east," said the architecture studio.
▲ 桥梁跨越了洛杉矶河
The bridge spans the Los Angeles River
桥体的拱门略微倾斜，因此无法直接跨越河流，看起来在“拥抱”桥面。
LED灯设置于桥梁的上下方。
The viaduct's arches are slightly tilted so that they cant over the river and appear to "embrace" the deck.
LED lights have been inserted below and above the decks in the traffic barriers.
▲ 光带桥由混凝土和钢建造
Ribbon of Light is made of concrete and steel
建筑师说：“桥梁下方的照明系统照亮了拱门，城市的各个方位都能够看到这座桥体，它就如同城市的灯塔。”
自行车道和人行通道也连接着桥体，建筑师也设计了螺旋通道，从而将桥梁和街区联系起来。
"Accent lighting from below the deck illuminates the undersides of the arches," said the architecture studio. "The bridge, visible from many parts of the city, will have the ability to be illuminated as a civic beacon."
Designated bicycle lanes and a pedestrian walkway run the length of the bridge. To connect the viaduct to the neighbourhoods it runs over, the architecture studio included paperclip and helical ramps to the ground.
▲ 大量的通道通向地面
A number of ramps lead to the ground
桥梁下方是一个面积约为12英亩的公共公园，由Hargreaves/Jones Associates事务所设计。
公园能够促进社区与项目的联系，并且将附近的社区和河流联系在一起。
Below the bridge is a 12-acre public park designed by Hargreaves/Jones Associates.
The park was set up to facilitate community connection with the project and to connect the neighbourhoods near the bridge to the river.
▲ 桥梁连接了洛杉矶的两个街区
The bridge connects two LA neighbourhoods
原有的第六街区高架桥是计划和其他桥体共同建造，但是由于规模不同，这座桥体则使用来自洛杉矶河的砂石建造。
Michael Maltzan建筑事务所说：“但是，混凝土中的材料引起了一定的化学反应，因此整体结构在竣工之后的20年内逐步恶化，因此人们花费了很高的成本来尝试改造它，但是都失败了。”
经过抗震研究，最终得出结论这座桥体无法改造，因此于2016年拆除。
The original 6th Street Viaduct was constructed alongside a series of other bridges and, because of its scale, was built on-site using sand from the Los Angeles River.
"Unfortunately, the materials in the concrete gave rise to an alkali silica reaction, which made the structure deteriorate within 20 years of completion," said Michael Maltzan Architecture. "Over time, various costly and ultimately unsuccessful methods were tried to save the viaduct."
Seismic studies eventually declared the continued use of the bridge unfeasible. It was demolished in 2016.
▲ LED灯光照亮了面板
LED lights illuminate the deck
为了完成Michael Maltzan事务所的光带设计，HNTB则受邀设计抗震结构。
上部结构应用了低收缩的混凝土混合物，而桥体则应用纤维增强型混凝土混合物，高架桥体基础则使用了32个基础抗震设施。
建筑师说，光带桥是洛杉矶当地最大的桥梁项目，国家、州，以及地方政府为该项目投入了5.88亿。
施工部分由承包商Skanska Stacy与 Witbeck负责。
To fulfil Michael Maltzan's design for the Ribbon of Light, HNTB was selected as the engineer of record to create a seismic-ready structure.
A low-shrinkage concrete mix was used for the superstructure, while the decking was constructed using a fiber-reinforced concrete mix. Thirty-two seismic base isolators were used along the base of the viaduct.
The Ribbon of Light is the largest bridge project in the history of Los Angeles, according to the architecture firm. More than $588 million dollars were allocated to its completion from federal, state and local governments.
Construction was led by contractors Skanska Stacy and Witbeck.
▲ 自行车与行人通道也包含于设计范围中
Bicycle and pedestrian lanes were included in the design
Michael Maltzan建筑事务所成立于1995年，已经设计了许多的桥体，还包括一些其他结构。
近期完成的其他桥梁包含有位于土耳其的世界最长吊桥，以及位于中国某村庄的复杂木桥。
摄影：Iwan Baan
Michael Maltzan Architecture was founded in 1995 and has completed a number of bridges, as well as other structures, internationally.
Other noteworthy bridges completed recently include the world's longest suspension bridge in Turkey as well as an intricate wooden bridge completed in a Chinese village.
The photography is by Iwan Baan.
项目信息：
建筑设计：Michael Maltzan Architecture, Inc. (Michael Maltzan, FAIA, 设计负责人；Tim Williams, 管理负责人；Paul Stoelting, 项目管理)
团队：Michael Maltzan Architecture (Matthew Austin, Deysi Blanco, Casey Beinto, William Carson, Scott Carter, Lord Ceniza, Roger Cortes, Michael Faciejew, Mehr Khanpour, Yu Li, Ann Soo, Jose Thomas, Hiroshi Tokumaru, Gee-Ghid Tse, Jennifer Wu)
Engineer of record: Michael Jones, HNTB
城市规划：AC Martin
景观设计：Hargreaves/Jones Associates
Project credits:
Architect: Michael Maltzan Architecture, Inc. (Michael Maltzan, FAIA, design principal; Tim Williams, managing principal; Paul Stoelting, project manager)
Team: Michael Maltzan Architecture (Matthew Austin, Deysi Blanco, Casey Beinto, William Carson, Scott Carter, Lord Ceniza, Roger Cortes, Michael Faciejew, Mehr Khanpour, Yu Li, Ann Soo, Jose Thomas, Hiroshi Tokumaru, Gee-Ghid Tse, Jennifer Wu)
Engineer of record: Michael Jones, HNTB
Urban planning: AC Martin
Landscape architect: Hargreaves/Jones Associates
|
|
