Tam Ölçekli Yanal Yükleme Testinin Sayısal Modellemesi

Limanlar, ulusal ve uluslararası deniz taşımacılığında çok önemli yapılardır. Aynı zamanda bu yapılar, nakliye ve dağıtım hizmetleri sağlayarak, ülke ekonomisi ve ticaret kapasitesi üzerinde de kritik bir konumdadır. Liman yapısı tasarımında, yapının hizmet ömrü boyunca stabilitesini ve dayanımını mufaza etmesi oldukça önemlidir. Bu tip yapıların tasarımında, rüzgâr ve dalga yükleri ile gemi yanaşması ve bağlanması sırasında ortaya çıkan etkilerin neden olduğu yanal yükler, dikey yüklere kıyasla çok daha önemli olabilmektedir. Liman yapısı temel sisteminin tasarımı ve performansı, hizmet yükleri dikkate alınarak tam ölçekli saha testleri ile araştırılmalıdır. Bu çalışmanın amacıda, Akdeniz'de Mersin Uluslararası Liman İnşaatı bölgesinde tam ölçekli saha yükleme testleri ile çelik boru kazıklarının yanal yük altındaki performansının incelenmesidir. Tekil bir test kazığı, tam ölçekli yanal yükleme düzeneği ile 4 yükleme-boşaltma çevrimi altında, proje yükünün 2 katına kadar yüklenmiştir. Ayrıca gerçek yanal yük-deplasman davranışını simüle etmek için Plaxis 3D sonlu elemanlar yazılımı kullanılmıştır. Sayısal modelden elde edilen analiz sonuçlarının, yükleme testinden elde edilen kazık yanal yük-deplasman davranışını başarılı bir şekilde yansıttığı gözlemlenmiştir.

Numerical Modelling of Full-Scale Lateral Load Test

Ports are very important structures at the national and international sea transportation. These structures are also in a critical positionon economy and commerce capacity by providing shipping and distribution services. It is very important to design a port structure,considering its stability and resistance along its service time. In the design of this type of structure, the lateral loads caused by duringship berthing, wind and wave loads etc. can be more important compared with vertical loads. The design and the performance of aport structure foundation should be investigated by full scale field tests considering the service loads. The aim of this study is toinvestigate the performance of the steel pipe pile under lateral load by full scale in-situ loading tests at Mersin International PortConstruction area in the Mediterranean Sea. Full scale pile lateral loading test (PLLT) on a single offshore pile has been conducted atthe project site and the test pile has been loaded up to 2 times the service load with 4 loading-unloading cycles. In addition, anumerical analysis has been performed to simulate the real lateral load-deflection behavior by using Plaxis 3D finite element software.It has been observed that, the analysis results obtained from the numerical model has been reflected the test pile lateral loaddisplacement behavior with good convergence.

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