Statik ve dinamik yüklere maruz betonarme konsol istinat duvarlarının diferansiyel gelişim algoritması ile optimum tasarımı

Year 2018, Volume: 24 Issue: 3, 403 - 412, 29.06.2018

Ali Haydar Kayhan , Ahmet Demir

Abstract

Bu
çalışmada, betonarme konsol istinat duvarlarının minimum maliyetle tasarımında
diferansiyel gelişim algoritması tekniğine dayalı bir yöntem kullanılmıştır.
Düşey yüklerin yanı sıra hem statik hem de depremli durumdaki dinamik zemin itkileri
gözönüne alınmıştır. TS-500’de tanımlanan betonarme tasarım kriterleri ve
TS-7994’te tanımlanan devrilme, kayma ve zeminin taşıma gücü ile ilgili
kriterler, optimum tasarım probleminin kısıtları olarak ele alınmıştır. Farklı
zemin özellikleri için, istinat duvarının kesit ölçüleri ve betonarme donatı
düzeni, dikkate alınan tüm kriterler sağlanacak biçimde elde edilmiştir.
Duyarlılık analizi sonuçları, optimum tasarımın diferansiyel gelişim
algoritması parametrelerinin seçiminden etkilenmediğini göstermiştir.
Dolayısıyla, diferansiyel gelişim algoritmasının, betonarme konsol istinat
duvarlarının tasarımının optimum şekilde yapılabilmesi için etkin şekilde
kullanılabileceği söylenebilir.

Keywords

Betonarme konsol istinat duvarı, Diferansiyel gelişim algoritması, Optimum tasarım

Optimum design of RC cantilever retaining walls subjected to static and dynamic loadings by differential evolution algorithm

Abstract

In
this study, a solution algorithm based on the differential evolution algorithm
is used to optimally design the reinforced concrete cantilever retaining walls.
Beside vertical loads, static and earthquake induced dynamic lateral soil
pressure are taken into account for designing of the retaining walls.
Requirements for reinforced concrete design given in TS-500 and requirements
for sliding, overturning and soil bearing capacity evaluation given in TS-7994
are considered as constraints of the optimum design problem. For different
combinations of soil properties, section dimensions and reinforcement of the
retaining walls are obtained cost of the wall to be minimum and all the
considered constraints to be satisfied. Results of sensitivity analysis show
that optimum design is insensitive to the selection of differential evolution
algorithm parameters. Therefore, differential evolution algorithm can be used
as an effective way for optimally designing the reinforced concrete cantilever
walls.

Keywords

Reinforced concrete retaining wall, Differential evolution algorithm, Optimum design

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