近日，位于科罗卡多泉市的联合公园桥在剪彩仪式后正式向公众开放，以此拉开美国独立日周末的序幕。该步行桥将America the Beautiful Park公园和科罗拉多泉市中心流畅地连接在一起。

▼步行桥连接了博物馆和公园，the pedestrian bridge connects the museum to the park © Jason O Rear

The City of Colorado Springs kicked off Independence Day weekend by opening Park Union Bridge to the public, following a ribbon cutting ceremony. This pedestrian gateway connects America the Beautiful Park to downtown Colorado Springs.

▼鸟瞰，aerial view © Iwan Baan

▼两个紧扣的环形结构从铁路两侧向中间延伸，Two interlocked loops, stretching from either side of the railyard © Iwan Baan

项目由毗邻的国家奥林匹克与残奥会博物馆的设计团队DS+R设计，灵感来自运动员的反重力运动，250英尺（76.2米）高的弯曲钢结构架在铁轨上。两个紧扣的环形结构从铁路两侧向中间延伸，连接博物馆和公园。这座桥是材料和几何结构的双重试验，混合钢结构体系起着拱和桁架的作用，优雅地保留了市中心到落基山脉的壮丽景色。

Designed by the same team as the adjacent U.S. Olympic & Paralympic Museum complex, the Park Union Bridge takes its inspiration from the gravity-defying motion of athletes, with a 250-foot curved steel structure that floats above an active railyard. Two interlocked loops, stretching from either side of the railyard, connect the museum and America the Beautiful Park. The bridge is an exercise in fitness – both in terms of material and geometry. The hybrid steel structure system functions as an arch and a truss, elegantly preserving views from downtown to the majestic mountain ranges of Pikes Peak.

▼由铁轨远观项目，viewing the project from the railway trail © Iwan Baan

▼混合钢结构体系起着拱和桁架的作用，The hybrid steel structure system functions as an arch and a truss © Jason O Rear

▼夜景，night view © Jason O Rear

联合公园桥将多条自行车道汇集到一起，其中就包括著名的派克峰绿道（Pike Peak Greenway）以及毗邻纪念碑溪（Monument Creek）的米德兰步道（Midland Trail）。宽敞的桥面足以安全容纳行人和自行车骑行者。曲线的桥身在桥面最宽处的两侧勾勒出椭圆形的景观框，从这里人们可以清晰地望到博物馆与东侧市中心、同时它也可作为观景平台，向人们展示出下方的火车和西侧派克峰的清晰景象。

▼曲线的桥身在桥面最宽处的两侧勾勒出椭圆形的景观框，an oculus at either side of the bridge frames the museum and downtown © Jason O Rear

The bridge stitches together a growing network of pedestrian bicycle paths including the Pikes Peak Greenway and Midland Trail running alongside Monument Creek, with a generous width that safely accommodates pedestrians and cyclists alike. At its widest point, an oculus at either side of the bridge frames the museum and downtown to the east, a platform for trainspotting below, and a distinct look out to the Rocky Mountains to the west.

▼骑行的人们伸出手便可触摸到桥身，Cyclists can reach out and touch the bridge © Jason O Rear

▼宽敞的桥面足以安全容纳行人和自行车骑行者，the generous width that safely accommodates pedestrians and cyclists alike © Jason O Rear

▼速度与动感之美，sense of speed and motion © Jason O Rear

夜晚，灯光沿着桥身从铁轨一侧至另一侧，不仅为人们提供照明，更给人一种速度感和动感。

In the evenings, lighting along the bridge traces a single vector from one side of the tracks to the other, giving a sense of speed and motion while providing illumination for pedestrians and cyclists.

▼灯光沿着桥身从铁轨一侧至另一侧，lighting along the bridge traces a single vector from one side of the tracks to the other © Jason O Rear

▼亮起的桥梁与火车的灯光相互呼应，The lit bridge echoes the lights of the train © Jason O Rear

▼夜景顶视图，aerial top view during the night © Jason O Rear

DS+R主管合伙人兼首席设计师Benjamin Gilmartin指出：“作为项目的设计者与见证者，我们感到万分激动，联合公园桥不仅仅是一座连接两点的交通建筑，而将成为科罗拉多泉市的新晋地标。大桥两侧的洞口前，人们将欣赏到博物馆、公园以及派克峰雄伟山脉的美景。骑自行车的人沿着250英尺（约76.2 米）的桥身前行，伸出手便能感受到它光滑的弧形钢拱。在独立日到来的这个特别的周末里，游客们将不仅仅惊叹于从脚下呼啸而过的列车，还能饱览远处震撼人心的烟火表演。”

DS+R Partner-in-Charge Benjamin Gilmartin noted: “We were thrilled to witness members of the Colorado Springs community take ownership of this unique bridge, not just as a means of connecting point A to B, but as a new landmark. Families paused at the oculus to take in views of the museum, the park and the majestic mountain ranges of Pikes Peak. Cyclists gliding along its 250-foot length reached out to touch its smooth curving steel arch. And on this special Independence Day weekend, visitors marveled not only at the trains they were hovering above, but at an amazing display of fireworks in the distance.”

▼独立日焰火表演场景，Independence Day fireworks display © Jason O Rear

▼2021年2月安装现场，February 2021 construction site © DS+R

▼风洞试验与制作，wind testing and fabrication © Arup

科罗拉多泉市市长John Suthers评论道:“这座桥不仅为我们提供了一条跨越河流与铁路的通道，同时将人们从市中心与博物馆引向两溪交汇处的美丽公园，在这里，人们将尽览派克峰的壮丽景色。可以说联合公园桥将城市与公园完美连接在一起，我相信它将成为美国奥林匹克城最具标志性和最受关注的地标之一。”

“The bridge takes us places physically from downtown Colorado Springs and the U.S. Olympic & Paralympic Museum over a river or railroad tracks, to a beautiful park at the confluence of two creeks in a majestic view of Pikes Peak,” commented Colorado Springs Mayor John Suthers. “It unites a city and a park, and I confidently predict it will be among the most iconic and most photographed landmarks in Olympic City USA.”

▼区位图，location plan © DS + R

▼鸟瞰效果图，perspective drawing © DS + R

▼总平面图，master plan © DS + R

Location: Colorado Springs, Colorado Owner: City of Colorado Springs Architects: Diller Scofidio + Renfro, Desgin Architect Anderson Mason Dale Architects, Architect of Record Total Project Cost: $20 Million USD Dimensions Length: 250′ Height: 25′ above ground level Height from deck to top of arch: 17′ Width: 16′ – 23′ Weight: 550 tons Number of Section: 6 Materials Shell: Painted structural steel Liner: Painted metal panels Deck: Concrete Elevator: Glass Additional materials: Stainless steel cable mesh, comfort rail with integrated lighting Project Team Design Architect: Diller Scofidio + Renfro, (Partner-in-charge: Benjamin Gilmartin) Architect of Record: Anderson Mason Dale Architects Structural Engineer: Arup Structural Engineer (Bridge Abutments): KL&A Railroad Consultant: Felsburg Holt & Ullevig and FUHueng Steel Fabricator: KING Fabrication General Contractor: Kiewit Construction Lighting: Tillotson Design Associates Onsite Inspector: Terracon