M.Sc. Tezi Görüntüleme

Student: Barbaros ATMACA
Supervisor: Assistant Prof. Sevket ATES
Department: İnşaat Mühendisliği
Institution: Graduate School of Natural and Applied Sciences
University: Karadeniz Technical University Turkey
Title of the Thesis: Construction Stage Analysis of Three Dimensional Cable-Stayed Bridge
Level: M.Sc.
Acceptance Date: 15/6/2012
Number of Pages: 61
Registration Number: i2507

      In this paper nonlinear static analysis of three-dimensional cable stayed bridges are performed for the time dependent materials properties such as creep, shrinkage and aging of concrete and relaxation of cable. The Manavgat Cable-Stayed Bridge is selected as an application. The bridge is located in Antalya, Turkey was constructed with balanced cantilever construction method. Total length of the bridge is 202 m. The tower of bridge is located middle of the bridge span. The bridge has one λ shape steel tower. The construction stages and 3D finite element model of bridge are modeled with SAP2000. Large displacement occurs in these types of bridges so geometric nonlinearity is taken into consideration in the analysis using P-Delta plus large displacement criterion. The time dependent material strength variations and geometric variations are included in the analysis. In the first chapter of the study is mentioned type of bridges and structural components of cable stayed bridges, and previous researches which related with this study. In the second chapter is showed the modeling method and the formulation of construction stage analysis of the bridge. In the third chapter, Manavgat Cable Bridge which constructed in Turkey is selected for modeling. The information about geometrical and material properties of bridge is given too. In the fourth chapter, two different finite element analyses carried out that are evaluated with and without construction stages and results are compared with each other. As a result of these analyses, variation of internal forces such as bending moment, axial forces and shear forces for bridge tower and displacement and bending moment for bridge deck are given with detailed. The result of dynamic analysis was showed with graphics and these graphics have helped us to understanding of dynamic behavior of the bridge. As a result, it is observed that the differences between two analysis. The construction stage analysis is the best way for showing static behavior of bridge.


Key Words: Manavgat Cable-Stayed Bridge, Construction Stage Analysis, Time dependent materials properties, 3D finite element model, Balanced cantilever method.