Corrosion Protection Process for Istanbul Golden Horn Metro (Halic) Crossing Bridge
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Date
2021-02-22
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International Congress on Engineering Sciences and Multidisciplinary Approaches
Abstract
This paper focuses on the corrosion control process for the Golden Horn (Halic) Metro Crossing Bridge which is constructed over the Golden Horn in the city of Istanbul-Turkey consisting of a swing bridge and cable-stayed bridge both to be founded on a steel tubular pile foundation as the most important infrastructure steel bridge in Turkey in two ways; i) the paint coating method used in 12.770 tons steel members for the superstructure and ii) an active cathodic protection (CP) method with external current source used in 7.928 tons steel members for substructures which impose an external voltage on the steel surface in a manner that forces the steel to become cathodic. One of the unique aspects of this present study is that the external current CP given details in this paper for a steel bridge is used in Turkey for the first time in this area.
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Keywords
Steel bridge, corrosion protection, steel paint coatings, cathodic protection (CP), weathering steel