Design of Buried Reinforced Concrete Pipes with SIDD Type IV Installation

Year 2022, Volume: 33 Issue: 3, 11979 - 12002, 01.05.2022

Havvanur Kılıç Onur Demirci

https://doi.org/10.18400/tekderg.832738

Cited By: 1

Abstract

One of the most common and widely used methods of buried reinforced concrete pipe design is the direct design method (SIDD) which was started being developed in 1970’s. In SIDD Type IV pipe installation, there is no need to use a special bedding material under the pipe invert because a rock material is used in foundation soil. In this study, the behavior of the buried reinforced concrete pipe with SIDD Type IV installation is investigated. In this scope, a parametric investigation was conducted with numerical analysis to design a concrete pipe considering soil-structure interaction concept. In numerical analysis, the effects of varying design parameters are investigated such as properties like burial depths and diameter of pipes. Therefore, a reinforcement area chart has been created according to the SIDD Type IV design calculation results which includes internal forces obtained from pipe cross section. Furthermore, these obtained reinforcement areas are compared with reinforcement areas used by Iller Bankası A.Ş which are widely used in our country for buried pipe design. Hence, the main scope is to design concrete pipes practically by using this chart for SIDD Type IV conditions.

Keywords

Buried reinforced concrete pipes, finite element analysis, direct design

Tip 4 Kurulum ile Betonarme Boru Tasarımı

Abstract

Gömülü betonarme boru tasarımında yaygın olarak kullanılan yöntemlerden birisi ACPA tarafından 1970’li yıllarda geliştirilmeye başlanılan doğrudan tasarım yöntemidir. Bu yöntemde (SIDD) Tip 4 boru kurulumunda tabanda kayaç malzeme olmadığında boru tabanında özel bir yatak malzemesine ihtiyaç yoktur ve gömülme için herhangi bir kontrol gerektirmemektedir. Bu çalışmada, doğrudan tasarım yöntemine göre Tip 4 kurulum ile gömülen bir betonarme borunun davranışı incelenmiştir. Bu kapsamda zemin-yapı etkileşimi dikkate alınarak beton bir borunun tasarımı için parametrik sayısal analizler yapılmıştır. Analizlerde gömme derinliği ve boru çapı değişimi dikkate alınarak hesaplanan kesit tesirlerine göre gerekli donatı alanları belirlenerek Tip 4 kurulum koşulları için bir abak oluşturulmuştur. Ayrıca belirlenen bu donatı alanları, ülkemizde gömülü boruların tasarımında yaygın olarak kullanılan İller Bankası A.Ş’nin kullandığı donatı alanları ile karşılaştırılmıştır. Böylece Tip 4 kurulum koşulları için bu abaktan yararlanılarak pratik olarak tasarım yapılabilmesi amaçlanmıştır.

Keywords

Gömülü betonarme borular, sonlu elemanlar analizi, doğrudan tasarım

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