Bird's Nest Stadium
The Stadium (Bird's Nest) is located in the south of the central area of the Beijing Olympic Park an
Cooperation Cases & related parameters
丨Daqing oilfield surface photovoltaic power station
The project is located in Honggang District, Daqing City, Heilongjiang Province. The site area belongs to the alluvial accumulation landform, and the landform unit belongs to the alluvial plain of Songhua River in the middle of Songnen Plain. The landform features are relatively single, the terrain is not very undulating, the site is open, the terrain is relatively flat, there are no buildings and obstacles around, the solar energy resources in the area are more uniform, and the area is all salinized land, which is suitable for the construction of ground photovoltaic power stations. The planned site area is about 55×104m2, the elevation is 146.8~147.2m, the total planned construction capacity is 20MWp, the rated power is 270Wp polysilicon components, the average annual power generation is 2482.3×104kWh, the equivalent annual utilization hours are 1241.2h.
The seismic fortification intensity of the site area is 6 degrees, the design earthquake group is the first group, the design basic seismic acceleration value is 0.05g, the seismic response spectrum characteristic period is 0.45s. The type of site soil is soft soil to medium hard soil, and the type of building site is Class III. The basic wind pressure is 0.55kN/m2, and the basic snow pressure is 0.30kN/m2. The design service life of the main structure is 25 years, the safety level is 3, and the structural importance coefficient is 1.0.
As shown above, the main components of the support are C-shaped steel and rectangular (square) steel pipes, of which purlins and inclined beams are C-shaped steel (purlin: C100×50×20×2; Inclined beam: C80×45×10×2.5), the support is a rectangular (square) shaped steel pipe (middle support: 120×80×3; Long and short diagonal support: 40×40×2); The amount of steel used for a single group of photovoltaic module array brackets is about 7kg/m2, and all steel components are made of Q235 steel. In addition to the welded connection type of the middle support and the prefabricated pipe pile end plate, other components are bolted connection type.
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Square tube 1 |
120mm×80mm×3.0mm | Square tube 2 |
40mm×40mm×2.0mm |
丨Antarctic Zhongshan station photovoltaic support
The structure diagram of the photovoltaic array is shown in the figure above, and the photovoltaic bracket of each photovoltaic array is composed of 3 support frames, 3 fixed bases and 2 beams. Among them, the support frame and beam are the main part of the photovoltaic support; The front column of the support frame is fixed together with the base through the flange; For ease of adjustment, the rear column is hinged with the inclined beam and the base.
Increasing the length of the strip concrete foundation of the photovoltaic support base is conducive to reducing the quality of the foundation. In the area of Zhongshan Station, the size of the strip concrete foundation can be 2.4m × 0.4m × 0.4m for the photovoltaic array installed with 4 photovoltaic modules. The front column of the support has the greatest force, and the rectangular steel pipe material of 80 mm×40 mm×2.0 mm with Q345E material can meet the engineering requirements.
| Square tube |
80mm×40mm×2.0mm |
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