Design of post tensioned slab bridge

In this study, presented as mester thesis, general information was given on the design principles of the prestressed concrete bridges. Especially, under the traffic and earthquake loads of a five span slab deckbridge analaysis are demonstrated. The master thesis, presented in five chapters. In the first chapter general information about the topic, the point and the scope of the study are given. In the second chapter, the methods and the essential of design of prestressing are investigated. In addition, type of prestressing steel, the loss of the prestressing, the stage of calculation of prestressed structure and the information about allowable stress are informed. In the third chapter, pre-sizing of a slab deck and cable settlement are made. Traffic load is founded by using the programme of CSIBridge. The post tensioned slab bridge modeled in the CSIBridge and moving load analysis was performed. Using the results obtained in the analysis deck calculation is finished. Stress controls were made as specified in AASHTO. After doing this calculation, horizontal and vertical earthquake effects are calculated by equivalent static method. On the light of these informations, intermediate pier reinforcement is found out. Having regard to the these effect of earthquake and superstructure, the dimension of pile foundation, settlement of pile and diameter of piles are determined after some of trying. Using the results obtained in the calculations also fundamental reinforcement is calculated. In the forth chapter of study, it is investigated that pre-cast girder bridge, which have a same span and width with post-tensioned concrete slab bridge, behaves under the condition of own weight and trafic loads. Traffic load is founded by using the programme of CSIBridge. Stress controls were made as specified in AASHTO. Using the results obtained in the calculations pre-tensioned girder bridge cost are calculated. Finally, the fifth chapter includes the conclusions that obtained by studying of the master thesis. In addition, it gives some advice about all of this topic in order to extend these study.