Study of the impact of increasing the span of self-anchored suspension bridge on the bridge components

Abstract

This thesis aims to indicate the behavior of self-anchored suspension bridge (Pylon- Girder and Cables) of prestressed concrete girder type when the main span increases from 160 meters up to 500 meters while monitoring the impact of this increase on the bridge components. For analyzing the bridge behavior at increasing span , parametric study has been done to clarify the relation between bridge components and the impact of changing the geometrical properties for each of the elements on other elements that maintain the same properties with presenting the results of the studied six models for each element and also the impact of the sag value on other bridge elements has been figured out for the three studied models. To determine the straining actions of bridge components under both dead and live loads a study on eight models with different spans has been considered ,the increment process is done using scaling method as all of the bridge geometrical properties and components dimensional properties are selected relative to the bridge main span.