▼高层交通业务楼外观，exterior of the high-rise traffic service building ©马元
The site is located at Yixian Road and Memorial Road, Yangpu District, Shanghai, with a construction area of 26536㎡. It was originally an open-air bus parking and maintenance yard built in the early 1970s. Now it has been transformed into a 352-parking and maintenance building for buses, a diesel fuel station and a high-rise traffic service building with a total floor area of 91967㎡.
▼公交多层停车库，multi-storey bus parking garage ©马元
场地分析| Site analysis
There are many sensitive buildings adjacent to the site: two residential districts, a 220 KV substation, a large building material market with a fire-resistant grade of only four and urban elevated roads, plus the sensitive objects such as gas station, large parking maintenance building and dense bus charging facilities of the project. Therefore, the design needs to solve the following difficulties.
设计难点| Design Difficulties
1. Ensuring safety and health;
2. Ensure that the organization of bus route is reasonable;
3. Improve building usage and parking efficiency in limited space; 4. Achieve the owner’s requirement that “not new at the beginning of construction complete, not old after many years”;
5. Pay attention to green ecology and energy conservation.
According to the bus entry and exit lines, the parking process and the most efficient “four layers and five stops” layout, the plane of 352 bus parking garages is a rectangle with a aspect ratio of 1:2 and a height of nearly 24 meters. In order to reduce the impact of sunshine on the northern residential district, the multi-storey parking garage is erected on the east side of the base. The high-rise traffic business building is located on the east side of the elevated Yixian Road, and the north side is a 2-storey substation, which is more conducive to the image display of public transport enterprises. According to the requirements of fire protection, the gas station should be placed in the middle of the land, which can be far away from residential buildings, substations and elevated roads, so as to minimize the potential safety hazards.
▼352辆大巴停车库的平面是个长宽比约1：2的矩形，高层交通业务楼放在逸仙路高架东侧，352 bus parking garages is a rectangle with a aspect ratio of 1:2, the high-rise traffic business building is located on the east side of the elevated Yixian Road ©史巍
Inbound buses enter the base from the entrance of the buses on Memorial Road and Yixian Road respectively, and pass through the storage lane of about 100 meters to the gas station for refueling. After leaving the station, the bus turns left to the East and drives downstairs to cross the street, “Inbox”, and then to the left to enter the multi-storey garage for parking or maintenance; the exiting buses leave the garage northward and leave the base from the exit of the buses on Memorial Road.
▼进场公交车分别由纪念路和逸仙路上的公交车入口驶入基地，出场的公交车向北驶离停车库并由纪念路的公交车出口驶出基地，inbound buses enter the base from the entrance of the buses on Memorial Road and Yixian Road respectively; the exiting buses leave the garage northward and leave the base from the exit of the buses on Memorial Road
公交多层停车库| Bus multi-storey parking garage
In order to ensure that the buildings inside and outside the site keep enough safe spacing, coupled with the width of bus passage and turning radius, the land use has become very limited. The design of parking building based on the conventional bus ramp and inner courtyard can not be realized on the general layout. Therefore, the built-in bus ramp + firewall mode is creatively proposed, so that the same number of parking occupies the smallest space. At the same time, the noise reduction rubber ramp board is used to effectively control the large amount of noise generated by the uphill bus in the parking building.
▼内置大巴汽车坡道+防火墙模式， built-in bus ramp + firewall mode
交通业务楼|Traffic Service Building
Plane: The standard floor area of the building is 1800㎡ and the ground floor area is 35000㎡. There are 6 passenger elevators and 2 fire fighting and passenger and cargo elevators. The shared antechamber will be connected with the elevator hall in series. Eight elevators can shorten the time of waiting elevator in peak period and improve the plane utilization coefficient.
▼交通业务楼标准层平面，standard floor of Traffic Service Building
Facade: The facade design of the building originates from three intentions——the inclined array parking mode to facilitate bus access; the inclined interwoven tread pattern of bus rubber tires; the crisscross and orderly urban grid road network. The facade of the building is thus coordinated with the rugged bus parking and gas station facades.
▼大楼立面意向，intentions of the building facade
Exterior wall: Because there are many sensitive buildings around, it is not suitable for glass curtain wall, so the system of exterior window + dry hanging stone curtain wall is adopted. At the same time, the ratio of window to wall is controlled from 0.5 to 0.4, which not only satisfies the indoor good natural lighting, ventilation and vision, but also achieves high efficiency and energy saving.
because there are many sensitive buildings around, it is not suitable for glass curtain wall, so the system of exterior window + dry hanging stone curtain wall is adopted ©马元
Material: The solid wall of the facade is made of 600*1620*30 dry-hanging polished granite. The color of the stone is uniformly dark dots in beige. Looking from a distance, it not only has the texture of litchi stone, but also is dirty resistant and easy to clean, which makes the building more simple and magnificent. It sets up the image of modern public transport enterprise in a complex environment, yet modest and pragmatic.
▼外立面实墙采用了600*1620*30的干挂抛光面花岗岩，the solid wall of the facade is made of 600*1620*30 dry-hanging polished granite ©马元
▼窗外观景，view through the window ©史巍
▼建筑简约、大气，the building is simple and magnificent ©马元
▼石材颜色米色中均布深色麻点，the color of the stone is uniformly dark dots in beige ©马元
Section: After fully pipeline synthesis design, the standard floor height of the building is 4.05 meters, deducting the floor structure of overhead network, the net height of indoor ceiling is not less than 2.85 meters. Therefore, under the condition of meeting the planning limitation height of 80 meters, there is one layer more than the conventional design, which improves the efficiency of land use.
▼大楼标准层层高4.05米，the standard floor height of the building is 4.05 meters ©马元
注重绿色生态节能| Paying Attention to Green Ecology and Energy Conservation
According to the climate and project characteristics of Shanghai, the following green energy-saving design innovations are made:
1. Steel structure assembly system is adopted for foundation pit support in order to reduce the impact on surrounding residents.
2. The built-in bus ramp and noise-reducing rubber ramp board are used to reduce the noise generated by the bus when it goes uphill.
3. The roof adopts 20 thick ultra-thin insulation vacuum insulation board to ensure that heavy-duty buses can be parked on the roof of multi-storey bus parking garage.
4. Flower grooves are set on the outer wall of multi-storey bus parking garage, and drought-tolerant plants are planted, which can beautify the micro-environment of the parking garage and enrich the facade effect.
5. A light catheter is installed on the top of the access passage of the reservoir to avoid glare.
6. Compared with the traditional refrigeration room plus cooling tower system, the energy efficiency ratio has been improved by using energy tower technology.
7. Other measures include rainwater recovery and solar hot water.
▼采用内置式大巴汽车坡道及降噪橡胶坡道板，屋面采用20厚超薄绝热真空保温板，the built-in bus ramp and noise-reducing rubber ramp board are used to reduce the noise generated by the bus; the roof adopts 20 thick ultra-thin insulation vacuum insulation board
In 2015, the project won the design logo of “Green Construction Erxing” of the Ministry of Housing and Construction; in 2017, it won the “Magnolia Award” of Shanghai Quality Engineering and the “Golden Stone Award” of the Yangtze River Delta of Curtain Wall; and in 2018, it won the National Quality Engineering Award. This project will enhance the public transport service capacity in the northeastern part of Shanghai, build up the image of modern public transport enterprises, and implement the concept of public travel service.
▼入口夜景，entrance night view ©马元
▼业务楼与车水马龙的街道，service building and the busy street ©马元
▼公交多层停车库标准层平面，standard plan of multi-storey bus parking garage