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[33391] Artykuł:

Instruments of probabilistic optimisation of load bearing capacity and reliability of statically indeterminate complex structures

Czasopismo: Archives of Civil Engineering   Tom: 60, Zeszyt: 1, Strony: 77-90
ISSN:  1230-2945
Opublikowano: 2014
 
  Autorzy / Redaktorzy / Twórcy
Imię i nazwisko Wydział Katedra Procent
udziału		 Liczba
punktów
Zbigniew KowalWBiAKatedra Mechaniki, Konstrukcji Metalowych i Metod Komputerowych *1006.00  

Grupa MNiSW:  Publikacja w recenzowanym czasopiśmie wymienionym w wykazie ministra MNiSzW (część B)
Punkty MNiSW: 6

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Słowa kluczowe:

nośność  niezawodność  optymalizacja probabilistyczna  konstrukcja złożona 

Keywords:

load bearing capacity  reliability  probabilistic optimisation  complex structure 


Abstract:

The paper presents the method of probabilistic optimisation of load bearing capacity and reliability of statically indeterminate bar structures, and of coupling of members in kinematically admissible failure mechanisms (KAFM), which contain minimal critical sets of elements (MCSE). The latter are characterised by the fact that if only a single element is operational, the whole set is operational too. A method of increasing load bearing capacity and reliability of KAFM built from bars dimensioned in accordance with the code is presented. The paper also shows estimation of load bearing capacity and reliability of KAFM of the optimised structures containing elastic-plastic bars with quasi-brittle connections with nodes. The necessity of increasing connection of load bearing capacity and reliability in relation to bar reliability in order to prevent bars from being excluded from MCSE due to connection fracture is estimated.


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