A study on repair method using TRS for fatigue cracks in orthotropic steel deck. (13th September 2017)

• Record Type: Journal Article
• Authors: Mizokami, Yoshiaki; Kamata, Masafumi; Kishi, Yuki; Sakano, Masahiro
• Is Part Of: Ce/papers. Volume 1:issue 2/3(2017)
• Page Start: 4570
• Page End: 4578
• Publication Date: 2017-09-13
• Subjects: orthotropic steel deck -- fatigue crack -- crack repair -- Thread Rolling Screw; Civil engineering -- Periodicals; 624
• DOI: 10.1002/cepa.517
• Languages: English
• ISSNs: 2509-7075

Abstract

ABSTRACT: For the purpose of reducing dead load, an orthotropic steel deck is used in many long span bridges. The Honshu‐Shikoku Bridges use orthotropic steel decks stiffened by closed section ribs (trough rib) as well. With the increase of the service years, fatigue cracks resulting from large vehicles have been observed. For the bead‐penetrating cracks that initiate at weld root and grow toward bead surface in trough‐deck weld, several repair methods have been studied. However, effective methods that are applicable from the underside of the deck are still under development. In this paper, development of plate‐splicing methods that are applicable from the underside of the deck using Thread Rolling Screw and other fasteners and results of the fatigue tests to confirm their performances are described