Investigation of Structural Behavior of a Bridge Designed by the Segmentally Constructed Balanced Cantilever Method

Abstract

Segmentally constructed balanced cantilever bridge is a construction method slicing the superstructure vertically. The bridge model becomes continuously system after pouring the closing slice in the middle of the span. As a result, two different stages should be taken into account in the design of the viaduct in the segmentally construction method. The purpose of this study is to compare the internal forces that occur with the design of the bridge as a continuous system, considering the construction stages of a bridge designed according to the segmentally constructed cantilever method. For this purpose, a balanced cantilever bridge with a total length of 345 m with 2 piers and 3 spans was designed and the analyzes were carried out on this bridge. The sample bridge model was designed according to the application of Karşıyaka Viaduct in Trabzon, Ortahisar district, which is still under construction according to the precast beam bridge method. The results obtained in this method made taking into account the construction stage revealed a 14% higher bending moment. © 2022, TUBITAK. All rights