[Coal bunker dry coal shed grid]

The dry coal shed structure has been developed for 20 years. The structural forms used mainly include plane rigid frame, plane truss, plane arch and cylindrical reticulated shell structure. According to the comparison of the technical and economic indicators of the built dry coal shed structure, the cylindrical reticulated shell has obvious advantages and has become the main structural form of the dry coal shed structure.

The grid structure is adopted to reduce the bearing capacity of the roof. Generally speaking, 40-70 kg of steel is used per square meter of projected area.
With the development of my country's power industry, dry coal sheds have been extensively constructed and studied. Due to environmental protection requirements and strict control of construction land, the method of coal piles must be replaced by closed storage methods, so the construction of dry coal sheds has flourished in my country in recent years.
 
Generally speaking, the main function of the dry coal shed structure is to cover the coal yard to prevent the coal from being drenched in rain and polluting the environment when it is windy. It is an energy saving and environmental protection project. The architectural function of the dry coal shed is mainly a large storage warehouse. Therefore, it must have a certain storage and working space, that is, the structure must meet certain clearance requirements, and the cross-sectional shape of its effective space is trapezoidal, and the envelope of the working space is close to an arc.
The length and width of the dry coal shed structure are determined according to the needs of installed capacity, while the height of the structure is determined by the operation requirements of coal stacking and bucket wheel machines. Therefore, the characteristics of the dry coal shed structure are large span, high height and wide coverage area.