Steel plant is the industrial and civil construction of steel structures in the use of more buildings. The steel plant must have sufficient strength, stiffness and stability to withstand the effects of various vertical and horizontal loads from the roof, the wall, and the crane beam.
Steel structure is composed of roof system, support system (pillars, steel beams), crane beam system, wall system, and other parts of the combination of space rigid skeleton see Figure 3 1 1 1, to bear the role in the steel plant Of various loads. Among them, the pillars and roof trusses composed of horizontal plane frame is the most basic load-bearing plant structure, the vast majority of plant load through it to the foundation.
The roof structure consists of beams or roof trusses, brackets, sunroof frames, roof panels or ramps of flat frames that bear the vertical and horizontal horizontal loads of the roof.
The horizontal plane frame is composed of columns and beams as the basic load-bearing structure. The column is usually made of a fixed end at the base, and the connection between the beam and the column can be made as a hinge, but in order to increase the stiffness and to save the steel, it is usually made to have a transverse plane frame. The horizontal plane frame basically carries all the vertical and horizontal horizontal loads of the steel plant, including the weight of all steel structures (roof, wall, structural weight, etc.), roof snow loads and other live loads, vertical load and lateral Horizontal braking force, lateral wind load, lateral seismic action and so on.
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