Cost optimum design of spread footing under uniaxial combined bending according to TS500 via various metaheuristic algorithms

In this study, optimum designs of reinforced concrete spread footings bases with minimum cost were realized with various metaheuristic algorithms known as Artificial Bee Colony, Cuckoo Search, Teaching-Learning-Based Optimization Algorithm. The findings obtained from the optimum designs performed by the algorithms are evaluated according to various performance criteria. Teaching-Learning-Based optimization algorithm showed the highest performance and convergence speed. On the other hand, the effect of bending moment-axial force level, bearing capacity of soil on the optimum design of the spread footing are investigated by some parametric studies. It is understood that the increase in axial force increases the minimum cost of the spread footing and the increase in the eccentricity level rises the degree of increase. It has been observed that the minimum cost of spread footing has decreased with the increase of the bearing capacity of soil.

Bir doðrultuda birleþik eðilme etkisindeki tekil temellerin çeþitli sezgisel algoritmalarla TS500’e göre minimum maliyetle optimum tasarýmý

Bu çalýþmada betonarme tekil temellerin minimum maliyetle optimum tasarýmlarý Yapay Arý Koloni, Guguk Kuþu Arama, Öðretme-Öðrenme Tabanlý Optimizasyon Algoritmasý adlarýyla bilinen çeþitli sezgisel algoritmalarla gerçekleþtirilmiþtir. Söz konusu algoritmalarla gerçekleþtirilen optimum tasarýmlardan elde edilen bulgular çeþitli baþarým (performans) ölçütlerine göre deðerlendirilmiþtir. Algoritmalardan en yüksek baþarýmý ve en yüksek yakýnsama hýzýný öðretme ve öðrenme tabanlý optimizasyon algoritmasý göstermiþtir. Diðer taraftan temelin eðilme momenti ve normal kuvvet düzeyi ile temel zeminin taþýma gücünün optimum tasarýma etkisi birtakým parametrik çalýþmalarla incelenmiþtir. Gerçekleþtirilen parametrik çalýþmalardan normal kuvvetin artmasýyla tekil temelin minimum maliyetinin arttýðý, ayrýca dýþ merkezlik düzeyinin artmasýyla bu artýþ düzeyinin de yükseldiði anlaþýlmýþtýr. Zemin emniyet gerilmesinin artmasýyla temelin minimum maliyetinin azaldýðý görülmüþtür.