Student:	Walid YAQOOBİ
Supervisor:	Prof. Dr. Şevket ATEŞ
Department:	İnşaat Mühendisliği
Institution:	Graduate School of Natural and Applied Sciences
University:	Karadeniz Technical University Turkey

Title of the Thesis:	DETERMINATION OF LINEAR AND NONLINEAR BEHAVIOR OF POST TENSIONED CONCRETE BOX GIRDER BRIDGES
Level:	M.Sc.
Acceptance Date:	7/2/2020
Number of Pages:	105
Registration Number:	i3746

Summary:

In this thesis, linear and nonlinear analyses of post tensioned concrete box gieder

Budan highway bridge located in Artvin-Erzurum are eveluated by finite element method.

The SAP2000 package program was used for the finite element analyses of the bridge and

combinations were made with loads that acted on the bridge and maximum cross sectional

effects were determined accordings to the most critical loading. Morover, as a results of

pushover and time history analyses, the seismic performance level, maximum displacement

and maksimum base shear forces of bridge were determined. Values abtained from linear

and nonlinear methods were compared.

This thesis caontains four chapters. The first chapter include genral information,

literatüre studies related to the topic, formulations methods related to design and calculation

of prestressed bridges. The second chapter consists of information about geometric, cross

section, material, applied loads and finite element model. The findings and investigations

abtained from this studeis are given in the third chapter. The fourth chapter consist of results

and suggestions in the light of findings and ivestigations. Finally, referances and Curriculum

vitae are presented.

Keywords: Prestressed Highway Bridge, Post Tensioned, Material Properties, Modal

Analysis, Displacements, Finite Element Model