Shenzhen Shuiwei pedestrian bridge is located on Fuqiang Road, the main road of Shenzhen Futian District. The bridge span is 70.5m. This project, which connects Huanggang Park, many schools and residential areas, is full of imagination and creativity, giving the pedestrian bridge a sense of quality and ceremony.
▼天桥鸟瞰，aerial view of the bridge ©Elton
▼从街道看向天桥，view to the bridge from the street ©Elton
Single column umbrella-shaped structure
The design of Shuiwei pedestrian bridge in Shenzhen changes the supporting structure of the columns on both sides of the common pedestrian bridge, and adopts a single column umbrella shaped steel structure to support the bridge roof. When walking on the pedestrian bridge, people can enjoy the landscape on both sides of the bridge without any obstruction, and its line of sight will not be affected by the columns on the bridge, which will bring the beautiful scenery of Shenzhen all the year round. This design considers people’s psychology, when they pass the bridge, most people tend to look at both sides of the bridge and enjoy the street view of the city. Therefore, this design can make people have more beautiful experience when they pass the bridge.
▼桥上采用伞状支撑结构，umbrella shaped steel structure on the bridge ©Elton
Prefab-construction, green construction
The original intention of building pedestrian bridge is to promote walking and reduce traffic jams. However, the construction of many bridges bring a long construction time and a large amount of dust in the construction process, causing a certain degree of traffic congestion and air pollution, which makes people stay away.
In our design, we use prefabricated construction method to effectively solve this problem. The main bridge canopy is designed with large steel prefabricated components. Prefabrication is cast in the factory rather than at the construction site. For construction workers, the relatively stable working environment in the factory has higher safety factor than the complex site operation; The quality and process of building components can be better controlled through mechanized production; With the increasing of labor cost, the cost advantage of prefabrication will be more obvious. It greatly shortens the construction time and help achieve green construction.
▼伞状金属结构，umbrella shaped metal structure ©Atdesignoffice
Skillful use of rainwater and energy saving
The rain water from the canopy of the bridge is arranged to drip into the flower trough of the bridge deck along the cornice of the canopy. The main bridge deck uses the pavement layer to set a two-way cross slope of 1%. Combined with the longitudinal slope, the water on the bridge deck can be collected to the end of the bridge and led into the flower trough through the drainage pipe 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 ground green belt for drainage.
▼雨水引入花槽，沿端部排水管排出，rain water collected and led to the flower trough, and discharged through the drainage pipe at the end ©Elton
Detail control and quality
With the coming of night, the light of the bridge also rises quietly, which highlights the quality and connotation of the bridge.The light on the main bridge adopts strip-shaped light belt, combined with the column of umbrella structure, forming X-shaped light and shadow on the ground, which is vivid and interesting in the night. At the bottom of the main bridge, the concave coffer is adopted on the surface, and the uniform wall washing lamp is added to show the unique light and shadow effect in the night. When the driver drives through the bottom of the bridge, the delicate design will also disperse some daily boring and monotonous.
▼灯光示意图，lighting effect analysis ©Atdesignoffice
▼夜晚灯光效果，lighting effect in the night ©Elton
▼屋面下的灯光，lighting under the roof ©Elton
Wooden ceiling, integrated with nature
A green belt 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 road near the bridge, three kinds of bottom plants with different flowering periods and colors are selected to match the middle plants, and camphor is selected for the high plants.The plants are well arranged, and look different every seasons. The color of the bridge is mainly wood color, and the imitation wood grain steel plate is used at the bottom of the ceiling to meet its shading and rain 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，wooden ceiling corresponding with the green belt ©Elton
Strictly selected and meticulous Roofing materials
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。
The roof adopts the Standing Seam Roof System.The key design of this kind of roof system is based on the snap in metal 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, special fixed seat can solve the plate stress caused by thermal expansion and cold contraction, avoid the damage of the structure.
▼屋面细部，看不到穿孔和支撑方式，closer view to the roof, no perforation and supporting elements can be seen on the roof ©Elton
Barrier-free facilities design,unimpeded pass
The design of Shuiwei pedestrian bridge in Shenzhen takes into account the use of the elderly, the disabled, children, people carrying luggage and bicycles. Two vertical elevators are equipped on both sides of the flyover. Pedestrians can get on and off the flyover through the elevators, meeting the needs of the vulnerable groups and people with mobility disabilities, and improving the comfort and convenience of the bridge.With the development of pedestrian bridge beautification project, we are facing the prospect of promoting infrastructure construction, green development and harmonious coexistence between human and nature.
▼桥底自行车停车场和无障碍电梯，bicycle parking area under the bridge and barrier-free elevator ©Atdesignoffice
主创建筑师: 范铁（Tie Fan）
设计团队完整名单：李晓雪 Slavo Siska 吴晓丽 张晓莹