The world's largest!The satellite hall of pudong international airport is about to officially set sail

At present, the satellite hall, the world's largest single satellite hall and the world's first air-side MRT system using the steel wheel and rail system of urban rail transit -- Shanghai pudong international airport phase iii expansion project satellite hall and MRT station, will officially set sail on September 16 after more than 5,000 builders' ingenuity for more than three years.

The satellite hall of Shanghai pudong international airport, with a total construction area of 621,000 square meters, is located at the south side of T1 and T2 terminals. It is the largest satellite hall in the world. After its operation, the annual passenger throughput of pudong airport will reach 80 million.

The connection between the satellite hall and T1 and T2 terminals breaks through the tradition and is connected through the underground MRT system, which is relatively independent and interconnected, forming an overall planning pattern of "east and west separated and north and south integrated".The building shape of the satellite hall is in the shape of "work", which maximizes the length of the boarding corridor, increases the number of near seats and optimizes the layout of the near seats.The construction of the satellite hall has added 83 boarding Bridges and 125 seats to pudong airport, which has become a model project for maximizing functional applications.

"Big view" makes passengers more comfortable and pleasant

Reflect ingenuity to create the biggest highlight of the satellite hall is to make waiting passengers more comfortable and pleasant.Thanks to the rolling 35,000 ton steel structure roof of the satellite hall and the 6km long transparent glass curtain wall, passengers can enjoy the "big view" experience of the empty side panoramic airport.But also to the steel structure lifting increased the super difficulty.Through overcoming difficulties, unique innovative achievements have been made in the aspects of airport non-stop construction collaborative management technology, "steel-curtain wall" integrated construction technology, long-span space hyperbolic truss construction technology, "steel-structure -- metal roof" integrated construction technology, digital construction technology, etc.

For example, the main building of satellite hall is surrounded by a circle from the 4-meter layer to the eave under the roof. The facade adopts a curtain wall steel frame maintenance system, with a length of 6 kilometers.The total openness of the system determines that the curtain wall steel frame is a fully exposed steel structure, and each member is exquisitely and delicately designed, which can be called art steel structure.Curtain wall system in order to meet the requirements of the wind anti - platform at the same time to assume the decorative effect.To meet the requirements of design and processing of curtain wall steel structure production and installation accuracy control are two key points, through the adoption of "integration of steel structure, curtain wall" construction technology, the use of BIM technology of concrete structure modeling, extracting the join point coordinates of curtain wall steel structure and concrete structure and the coordinate data is revised up according to the site the site, use of big data moulding technology, the curtain wall steel structure integration model and the concrete structure model, the clamping results output data used in steel structure, deepening of curtain wall structure design, ensure that the steel structure node is precise.

Large area of clear water concrete to show the artistic effect

Reflect craftsmanship to make another window of satellite hall is the decorative art effect that large area clear water concrete shows.In the construction of satellite hall of pudong international airport, the amount of clear concrete is large and wide.The participating units independently developed and applied the fifth-generation plain concrete formwork system -- fiberglass column formwork and circular platform wood mold system on a large scale. A total of 1899 plain concrete columns were poured on site, including 1751 columns and 148 square and rectangular columns.The arc cantilever slab with width up to 4.2m and length up to 3500m was cast on site, which created the largest length and area of plain concrete in China.The total volume of concrete columns, plates and beams cast on site is 54,000 cubic meters, which is also the most in a project in Shanghai.In addition, there are 532 pre-fabricated fair-water concrete panels covering an area of 6,000 square meters.From the appearance, this concrete in one-time casting molding, showing a realistic texture of concrete, forming an overall clear water effect, subsequent do not need to polish, repair, only on the surface coated with a layer of matte transparent protective agent, do not need to do any other surface decoration.

In the process of construction, the contractors to develop the natural texture clear water concrete construction technology, to meet the needs of rinse concrete structure art, formed from the clear water concrete materials research and development, the scene construction quality control to late finished products protection of a series of construction technology, formed using GPS positioning, BIM (building information model) technology to three dimensional layout to digital processing, and a series of construction technology, make large rinse concrete display artistic effect.

Airports operate more green and energy efficient

The third highlight of the ingenuity in building the satellite hall is that the airport operation is more green and energy efficient.According to the green terminal design of world-class hub airport, the installation group USES a variety of energy-saving technologies in the satellite hall, such as variable frequency air conditioning box, eliminating direct cooling by air conditioning exchange, natural ventilation in transition seasons, and direct water supply under the ground. It is predicted that the annual saving of electricity consumption can reach 9.95 million degrees.The toilet and green water in the satellite hall can save 216,000 tons of water per year through the reuse of rainwater from the paddock river.