OPTIMUM DESIGN OF THE SYMMETRICAL GRAVITY RETAINING WALLS

Abstract

Retaining walls are one of the important applications in civil engineering. When the height of the wall is not too high, the gravity retaining walls, which are one of the retaining wall types, are widely used. Since the shear and bending moments in the wall sections are carried by the wall material in the gravity retaining walls, there is no need for reinforcement in the wall and more economical wall design can be made. Because many failure modes, design requirements and design constraints need to be considered together for the design of retaining walls, the problem has to be considered as an optimization problem. In this study, the artificial bee colony (ABC) algorithm, which is one of the heuristic methods, is used for the optimum design of symmetrical gravity retaining walls. Examples of different heights of wall and characteristics strengths of the used wall material are handled, and the effects of these characteristics on the cross-section geometry are investigated and the results are discussed.

Keywords

• Gravity retaining wall,Characteristic strength of material,Optimum design,Artificial bee colony algorithm

SİMETRİK AĞIRLIK İSTİNAT DUVARLARININ OPTİMUM TASARIMI

Abstract

İstinat duvarları, inşaat mühendisliğindeki önemli uygulamalardan birisidir. İstinat duvar türlerinden birisi olan ağırlık istinat duvarları özellikle duvar yüksekliğinin fazla olmadığı durumlarda yaygın olarak kullanılmaktadır. Ağırlık istinat duvarlarında duvar kesitinde oluşan kesme kuvvetleri ve eğilme momentleri duvar malzemesi tarafından karşılanabildiğinden, duvar içerisinde donatı gereksinimi oluşmamakta ve daha ekonomik tasarımlar yapılabilmektedir. İstinat duvarlarının tasarımı için birçok göçme modu, tasarım gereksinimleri ve kısıtlarının birlikte düşünülmesi gerektiğinden, bu problem önemli optimizasyon problemlerinden birisi haline gelmektedir. Bu çalışmada, simetrik ağırlık istinat duvarlarının optimum tasarımı için sezgisel metotlardan birisi olan yapay arı koloni (ABC) algoritması kullanılmıştır. Farklı duvar yükseklikleri ve kullanılan duvar malzemesinin karakteristik dayanımları için örnekler ele alınmış ve bu karakteristiklerin kesit geometrisine etkileri incelenerek sonuçlar tartışılmıştır.

Keywords

• Ağırlık istinat duvarı,Malzeme karakteristik dayanımı,Optimum tasarım,Yapay arı koloni algoritması

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