On the use of immune algorithms to determine seismic collapse conditions for frame structures

A. Greco 1, A. Pluchino 2

Abstract


In this paper an original application of the mechanisms of theoretical immunology for the effective evaluation of the ultimate resistance of planar frames is presented. The methodology is based on the combination of elementary collapse mechanisms following a collapse load factor minimization criterion. The proposed procedure makes use of arbitrary antibodies coded as strings of integer numbers (molecules), where each number represents how many times a given elementary mechanism enters in the combination, and allows to quickly converge to the actual collapse load factor and to jump out of local minima. A dedicated user-friendly software is developed in the NetLogo programming environment.  Validations of the proposed procedure are reported for several applications.


Keywords


Limit analysis; Seismic behaviour; Elementary mechanisms method; Immune algorithms; NetLogo.

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References


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DOI: http://dx.doi.org/10.24294/csma.v0i0.689

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