@inproceedings{92c44ddd823940fb8640cadd81e9ffed,
title = "Composite stiffness of asphalt and deck and its influence on RD joint",
abstract = "Numerous fatigue cracks were observed recently in many long-time served orthotopic deck bridges. Especially the cracks initiating from rib-to-deck (RD) joint may produce asphalt surfacing damage and hence cause impact on traffic safety. For fatigue evaluation of RD joints, in most current design specifications, the asphalt surfacing is just treated as a layer dispersing wheel loads and the effect of composite stiffness of asphalt surfacing and deck plate is neglected. In this study, Full size experiment for 2 spans orthotopic bridge deck with asphalt surfacing were carried out to investigate the stress distribution around RD joints and a special indoor asphalt heating and cooling system was employed to study the real stress distribution around RD joint with considering asphalt temperature variation. The experiment results show that the most critical transversal load cases for fatigue damage of RD joint are wheel load ride on the RD joint and located around the adjacent RD joint. Moreover the transversal stresses around RD joint are significantly sensitive to the asphalt temperature and the most sensitive temperature range is 5 degree Celsius to 35 degree Celsius.",
keywords = "Asphalt surfacing, Fatigue crack, Orthotopic steel bridge deck, Temperature",
author = "Ming Li and Yasumoto Aoki and Yasuo Suzuki and Yukio Adachi and Kunitoino Sugiura and Kunitaio Hashimoto",
year = "2015",
language = "英語",
series = "IABSE Conference, Nara 2015: Elegance in Structures - Report",
publisher = "International Association for Bridge and Structural Engineering (IABSE)",
pages = "284--285",
booktitle = "IABSE Conference, Nara 2015",
note = "IABSE Conference, Nara 2015: Elegance in Structures ; Conference date: 13-05-2015 Through 15-05-2015",
}