Optimum Design of Rc Retaining Walls with Key Section using Jaya Algorithm

Year 2019, Volume: 22 Issue: 2, 283 - 291, 01.06.2019

Hasan Tahsin Öztürk Erdem Türkeli

https://doi.org/10.2339/politeknik.432031

Cited By: 5

Abstract

In the traditional design process, the design starts
with preliminary dimensions that may change by using engineering intuition
after unfulfillment of necessary design conditions. By this way, the design is
renewed with the new dimensions determined. In this process, when designing a
structure that provides enough durability, stability, ductility and stiffness,
the design is not going to go beyond trial-and-error especially for a more
economical structure. However, the ever-decreasing supply of resources and the
increase in environmental pollution require the structures to be designed with
minimum cost or emission. The main purpose of this study is to perform minimum
cost or CO₂ emission design of a reinforced concrete console
retaining wall with a key section at the bottom by using JAYA algorithm. There
are 12 design variables utilized in this optimization process. The design
variables are related to the wall dimensions and reinforcement placed at the
various regions of the wall. The design problem has a total of 25 constraints
that are related with the slip, overturning, bearing capacity and overall
dimensions of the wall, dimension check of the cross section and the amount of
reinforcement. In the optimum design of the numerical example given in this
study, the effect of the magnitude of the surcharge load and the effect of the
parameters of the soil behind the wall on the minimum cost and CO₂
emission design of the wall is investigated.

Keywords

Optimization, retaining wall, jaya algorithm

Tabanında Anahtar Kesiti Bulunan Betonarme İstinat Duvarlarının Jaya Algoritmasıyla Optimum Tasarımı

Abstract

Geleneksel tasarım süreçlerinde bir
yapının tasarımında bir önboyutla tasarıma başlanarak, bu tasarımın gerekli
koşulları sağlamaması durumunda mühendislik önsezisiyle tasarım değiştirilerek
yenilenmektedir. Bu süreçte, başta dayanım olmak üzere; dayanıklılık,
stabilite, süneklik ve rijitlik koşullarını sağlayan bir yapı tasarlandığında,
özellikle daha ekonomik bir yapı için tasarım birkaç deneme-yanılmadan öteye
gidilememektedir. Oysa kaynakların gün geçtikçe azalması ve çevre
kirliliğindeki artışlar, yapıların minimum maliyetle yada emisyonla
tasarlanmalarını gerektirmektedir. Bu çalışmanın temel amacı, tabanında anahtar
kesiti bulunan bir betonarme konsol istinat duvarının, JAYA algoritması
kullanılarak, minimum maliyetle yada CO₂ emisyonuyla tasarımlarının
gerçekleştirilmesinden ibarettir. Betonarme istinat duvarı probleminde 12
tasarım değişkeni bulunmaktadır. Bu tasarım değişkenleri duvar boyutlarına ve
duvarın çeşitli bölgelerindeki donatılara ilişkindir. Problemin toplam 25
sınırlayıcısı bulunmakta ve bu sınırlayıcılar duvarın kayma, devrilme ve taşıma
gücü tahkikleri, betonarme kesit denetimleri ve boyut ile donatılara ilişkin
koşullardan oluşmaktadır. Çalışma kapsamında gerçekleştirilen sayısal
uygulamanın optimum tasarımda; duvar arkasındaki zemin parametreleriyle sürşarj
yükünün büyüklüğünün duvarın minimum maliyetine ve CO₂ emisyon
değerine etkisi incelenmektedir. 

Keywords

Optimization, retaining wall, jaya algorithm

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