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独柱伞状结构 —— 深圳水围天桥

发布于：2022-10-27 16:41:27 来自：建筑结构/混凝土结构 [复制转发]

深圳水围天桥

英国安托士建筑设计

▲ 天桥鸟瞰 ?Elton

深圳水围天桥位于深圳福田区主干道福强路上，桥梁跨度70.5m，这个人行天桥连接着皇岗公园、众多学校与居民区。由于城市车辆的不停增长，斑马线已经变成了危险而又低效的过街方式。我们把城市里的人行天桥定义为城市立体慢行系统的一个重要组成部分，如何在过街的瞬间给与人独特的体验，并赋予了这个公共建筑品质感和仪式感。

Shenzhen Shuiwei pedestrian bridge is located on Fuqiang Road, Futian District in Shenzhen. The bridge span is 70.5m. This project connects Huanggang Park, many schools, and residential areas. Due to the increased traffic, zebra crossing becomes a dangerous and inefficient way to move across the road. We consider the footbridge an important part of the multi-level slow movement system in the city. The design provides a unique experience to the pedestrian when they cross the road, and gives the bridge a sense of quality and spirit.

▲ 天桥鸟瞰 ?Elton

▲ 从街道看向天桥 ?Elton

独柱伞状结构，视线通透

深圳水围天桥雨棚设计不同于普通天桥两边立柱的支撑结构，采用了独柱伞状钢结构完成对桥梁屋面的支撑，视线更通透，使行人步行在天桥上时，能够毫无阻拦的欣赏天桥两边的景观，将深圳一年四季的美景尽收眼底。这一设计依据人们在通过天桥时倾向于望向天桥两边和欣赏城市的街景的习惯，为人们在穿过天桥时提供更美好的行走体验。

Single-column umbrella canopy. The roof design of the Shuwei bridge is different from many other bridges that have the structure of the column on both sides. It adopts a single-column structure to support the canopy. People can enjoy the landscape on both sides of the bridge without any obstruction while walking on the bridge, especially in Shenzhen where the beautiful scenery is all year round. This design is based on people's habit that they tend to look at both sides of the bridge and appreciate the city when passing the bridge, so as to provide people with a good walking experience when crossing the bridge.

▲ 桥上采用伞状支撑结构 ?Elton

▲ 雨水引入花槽，沿端部排水管排出 ?Elton

预制体建造，绿色施工

建设天桥的初衷是为了方便人们通行，减少交通堵塞，然而许多天桥的建设带来的是漫长的施工时间，和施工过程中大量的尘土，造成一定程度交通拥堵和空气污染，使人们避而远之。

Atdesignoffice在设计中采用预制装配的建造方式有效解决了这一问题。主桥雨棚的设计采用大型钢结构预制构件。预制在工厂浇制而非在最后的施工现场。对于建筑工人来说，工厂中相对稳定的工作环境比复杂的工地作业安全系数更高；建筑构件的质量和工艺通过机械化生产，能得到更好地控制；机械化生产对人工的需求更少，随着人工成本的不断升高，规模化生产的预制件成本优势会愈加明显。极大缩短了施工时间，实现绿色施工。

Prefab-construction. The original intention of building pedestrian bridges is to promote walking and reduce traffic jams. However, the construction of many bridges brings a long construction time and a large amount of dust in the construction process, causing traffic congestion and air pollution, which makes people stay away. In this project, we use prefabricated construction methods to effectively solve this problem. The main bridge canopy is designed with large steel prefabricated modules. For construction workers, the relatively stable working environment in the factory has a higher safety factor than the complex on-site operation. The quality and process of building components can be better controlled in factories. With the continuous rise of labor costs, the cost advantages of prefabrication become more obvious. It greatly shortens the construction time on site.

▲ 雨水引入花槽，沿端部排水管排出 ?Elton

▲ 灯光示意图 ?Atdesignoffice

▲ 夜晚灯光效果 ?Elton

巧用雨水，节能环保

天桥的雨棚设置沿雨棚檐口滴入桥面花槽。主桥桥面利用铺装层设置双向1%的横坡，结合纵向坡度可以将桥面水收集至天桥端部，通过桥面排水管引入花槽。花槽利用纵坡收集花槽水至端部，花槽端部设置横向排水管，接入箱梁内部的纵向排水管。纵向排水管在天桥两端设置立管，沿主桥墩下行至地面绿化带排水。

Use of rainwater and Sustainability. The rainwater from the canopy of the bridge is arranged to free drip into the flower trough on the bridge deck. The longitudinal slope is used to collect the water from the flower trough to the end, and a transverse drainage pipe is set at the end of the flower trough, which is connected with the longitudinal drainage pipe inside the box girder. The vertical drainage pipe is provided with risers at both ends of the bridge, which goes down along the main bridge pier to the green area on the ground.

▲ 夜晚灯光效果 ?Elton

▲ 屋面下的灯光 ?Elton

细节把控，品质突出

随着夜幕的降临，天桥的灯光也悄然升起，更凸显出天桥的品质与内涵。主桥梁上的灯光采用条状灯带，配合伞状结构的柱体，在地面上形成X形的光影，在夜幕中影影绰绰，趣味横生。在主桥梁底部，表面上采用内凹型的设计，添加均匀的洗墙灯照射，在夜色中呈现别致的光影效果，当司机驱车经过桥底，细腻的设计也会驱散一些日常的枯燥和单调吧。

Wooden ceiling, integrated with nature. A planter trough is set outside the handrail of the main bridge. The flowering period of Bougainvillea Rubra can be from November to June of the next year. On the pedestrian near the bridge, three kinds of bottom plants with different flowering periods and colors are selected to match the middle-level plants, and camphor is selected for the high-level plants. The plants are well arranged, and look different every season. The bridge ceiling is an aluminum panel with a wood texture, providing meet shading and shelter functions. At the same time, the light yellow wood color gives people a warm sense of vision and integrates with the surrounding green landscape.

▲ 木色顶棚与自然环境相融合 ?Elton

▲ 屋面细部，看不到穿孔和支撑方式 ?Elton

木色顶棚，与自然融合

天桥主桥扶手外侧设置了绿化带，植物选用三角梅，花期可从可从11月起至第二年6月，而在天桥附近道路上，选用三角梅，福建茶，希美丽三种不同花期与颜色的底层植物，搭配鸡蛋花树，小叶紫薇中层植物，高层植物则选用了香樟。植物的搭配错落有致，四季不同。天桥色调以木色为主，顶棚底面采用的仿木纹钢板，满足了其遮阳、避雨功能的同时，浅黄色的木色调给人以温暖的视觉感，与周围的绿化景观融为一体，浑然天成。

Detail control and unique lighting. At night, the lighting of the bridge also rises quietly, which highlights the quality and connotation of the bridge. The lighting under the umbrella on the main bridge forms X-shaped light and shadow on the ground, which is vivid and interesting. At the bottom of the main bridge, the concave coffer with a wall-washing lamp provides unique light and shadow effect. When the driver drives through the bottom of the bridge, the delicate design will also disperse some daily boring and monotonous.

屋面材料，严选细致

屋面采用钛锌板立边咬合系统 (Standing Seam Roof System)，立边咬合的核心构成是点支撑金属屋面系统，基于直立锁边咬合设计的特殊屋面板型，这种设计主要针对大跨度自支承式屋面/墙面系统。屋面板块的连接方式是板块与板块的肋边咬合形成密合的连接，在屋面上看不见任何穿孔，因为支承的方式是隐藏在面板之下的。钛锌板立边双咬合系统，第一次通过机械咬合，第二次咬合则由人工咬合完成，特制固定座可解决因热胀冷缩所产生的板块应力，避免结构物的破坏。

High-quality roofing material. Titanium Standing Seam Roof System is adopted for the roof. The connection mode of the roof plate is that the plate and the rib of the plate occlude to form a close connection, and no perforation can be seen on the roof because the support mode is hidden under the panel. Titanium zinc plate vertical double bite system, the first bite by mechanical, the second bite by manual, the special fixed seat can solve the plate stress caused by thermal expansion and cold contraction, avoid the damage to the structure.

无障碍设计，畅通无阻

深圳水围天桥的设计考虑到老年人、残疾人、儿童、携带行李者，携自行车者的使用，在天桥两侧配备了两台垂直电梯，行人可通过电梯上下天桥，满足了弱势群体及行动障碍人士的过节需求，提高天桥的舒适性与便利性。随着天桥美化工程的推展，迎接着十四五规划推进基础设施建设、推动绿色发展，促进人与自然和谐共生的展望。

Barrier-free design, unimpeded pass. The design of Shuiwei bridge takes into account the use of the elderly, the disabled, children, and people carrying luggage and bicycles. Two vertical elevators are equipped on both sides of the flyover. Pedestrians can get on and off the bridge through the elevators, meeting the needs of vulnerable groups and people with mobility disabilities, and improving comfort and convenience. Footbridge design can improve the pedestrian experience in the high-density city, and will promote the prospect of harmonious coexistence between humans and nature.

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