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Seismic analysis of steel structures
Release time:2017-03-20 15:48:03 | Views：
Seismic analysis of steel structures
 
The seismic design of high-rise steel structure construction should adopt the design method for analysis of frequent seismic action, anti seismic design of multi and high-rise steel structure should be carried out under the elastic analysis, the earthquake at this time, assuming the steel structure and components are in elastic state, the calculation of stability bearing capacity of the steel. The structure layer deformation and overall stability. The calculation method should be used according to the complexity of the height and shape of the steel structure.
1, steel structure building height not more than 40m and the horizontal and vertical is irregular, with shear deformation, can be calculated using the bottom shear method, the damping ratio of the structure is equivalent to 0.05.
2, steel structure in the wind load relatively large area, when the wind load effect is greater than the earthquake effect, the structure of interlayer displacement and bearing capacity are determined by wind load combination, in the elastic stage but does not consider the role of checking the earthquake, but the construction steel structure seismic requirements must be strictly in accordance with the seismic design of buildings the relevant provisions of the design specification.
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