Shakedown seismic analysis of composite steel-concrete frame systems

2016 ◽  
pp. 231-236
Author(s):  
P Alawdin ◽  
G Bulanov
Keyword(s):  
Seismic Analysis ◽  
Concrete Frame ◽  
Frame Systems ◽  
Composite Steel

scholarly journals Shakedown Analysis of Composite Steel-Concrete Frame Systems with Plastic and Brittle Elements Under Seismic Action

2017 ◽  
Vol 25 (2) ◽  
pp. 11-23
Author(s):  
Piotr Alawdin ◽  
George Bulanov
Keyword(s):  
Mathematical Model ◽  
Seismic Action ◽  
Concrete Frames ◽  
Shakedown Analysis ◽  
Nonlinear Properties ◽  
Concrete Frame ◽  
Partial Redistribution ◽  
Analysis Theory ◽  
Frame Systems ◽  
Composite Steel

Abstract In this paper the earthquake analysis of composite steel-concrete frames is performed by finding solution of the optimization problem of shakedown analysis, which takes into account the nonlinear properties of materials. The constructions are equipped with systems bearing structures of various elastic-plastic and brittle elements absorbing energy of seismic actions. A mathematical model of this problem is presented on the base of limit analysis theory with partial redistribution of self-stressed internal forces. It is assumed that the load varies randomly within the specified limits. These limits are determined by the possible direction and magnitude of seismic loads. The illustrative example of such analysis of system is introduced. Some attention has been paid to the practical application of the proposed mathematical model.

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