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Please use this identifier to cite or link to this item: http://hdl.handle.net/2108/1396

Title: Ottimizzazione e miglioramento del comportamento a fatica di ponti a piastra ortotropa
Other Titles: The Optimization and enhancement of fatigue behaviour of orthotropic deck bridges
Authors: Grimaldi, Antonio
Abruzzese, Donato
Qian, Zhonghui
Keywords: orthotropic deck bridge
fatigue
welded conncetion
structural hot spot stress
improvement technology
FBP
Issue Date: 5-Aug-2010
Abstract: Orthotropic deck bridges are widely used in bridge engineering, especially for long span bridges. Although orthotropic deck bridges have many advantages, it is found that they are sensitive to produce fatigue cracking under the repeating vehicle loading since there are a large number of welded connections in the deck structure. Among of these connections, rib-to-deck plate connection, rib-to-diaphragm connection and rib-to-diaphragm-to-deck plate (RDDP) connection are the three typical welded connections that are more sensitive to the fatigue cracking due to the high concentrated stress and high residual stress. Fatigue analysis of an orthotropic deck is a complex and uncertain process due to many factors which can influence the fatigue cracking. A state-of-the-art literature review of the fatigue codes/specifications was conducted to identify their advantages, disadvantages and limitations in this study. Meanwhile, the stress performances of a typical orthotropic deck were analyzed t...
Description: 21. ciclo
URI: http://hdl.handle.net/2108/1396
Appears in Collections:Tesi di dottorato in ingegneria

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