Fatigue test of an advanced orthotropic steel deck system using high performance steel for bridges

• Published in: International journal of steel structures Vol. 13; no. 1; pp. 93 - 101
• Main Authors: Oh, Chang-Kook, Bae, Doobyong
• Format: Journal Article
• Language: English
• Published: Heidelberg Korean Society of Steel Construction 01.03.2013; 한국강구조학회
• Subjects: Civil Engineering; Engineering; Materials Science; Solid Mechanics; 토목공학; bulkhead plate; out-of-plane motion; orthotropic steel deck; fatigue test; high performance steel for bridges
• ISSN: 1598-2351; 2093-6311
• DOI: 10.1007/s13296-013-1009-6

Magnificent elongation of bridge span length, especially of recently constructed cable stayed bridges and suspension bridges, can be achieved by technological as well as new material development of orthotropic steel deck systems. One such effort is to install curved bulkhead plates inside longitudinal u-ribs, which was analytically and experimentally demonstrated to reduce significant amount of concentrated stresses without sacrificing self-weight of the whole structure. In this paper, the optimal shape of more effective bulkhead plates is characterized by computational analysis. And it is verified from fatigue tests of a 3-dimensional full-scale structure that the fatigue performance can be significantly improved by installing the optimal bulkhead plates and by fabricating the structure out of recently developed high performance steel for bridges.