Design of the Tsakona Arched Bridge

Abstract

<p> An extended landslide cut the National Road Corinthos-Tripoli-Kalamata in Southern Greece and emerged the need for the construction of a large singular structure, capable to bridge the whole landslide in an area of high seismicity. In order to address the challenge, a bridge with length of 390m was designed. The main span 300m long, which passes over the landslide, consists of two vertical steel arches with rise of 45m and a steel-concrete composite deck, 22,80m wide, fully suspended by the arches with 2x20 vertical hangers. The approach to the main span of the bridge is achieved by a V-shaped prestressed concrete bridge 90m long and 20,40m wide.</p>