Results 181 to 190 of about 4,459 (229)

Improvement of fatigue properties of orthotropic decks

Engineering Structures, 2011
Orthotropic decks are progressive structural elements which often occur in civil, mechanical, ship, air and space engineering. Besides the advantages like low weight, great stiffness, and low structural height, they suffer from dynamic forces causing fatigue cracks. Therefore, it was tried to improve their fatigue properties and, thus, to prolong their
L. Frýba, Sh. Urushadze
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Numerical Evaluation of Toe-Deck Fatigue in Orthotropic Steel Bridge Deck

Journal of Performance of Constructed Facilities, 2015
AbstractSome toe-deck crack cases in China have been reported after about 10 years of service in suspension and beam bridge steel orthotropic decks with trough stiffeners. In this paper, a reference stress method used in design practice and a hot-spot stress method provided by the International Institute of Welding are used to investigate toe-deck ...
Rong Liu, Bohai Ji, Manman Wang, Ce Chen, Hirofum Maeno   +4 more
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Commentary on Orthotropic-Deck Bridge Specification

Journal of the Structural Division, 1974
A commentary is presented to support specification provisions for the design and construction of steel orthotropic-deck bridges that were recently (1973) adopted by the American Association of State Highway Transportation Officials. The new provisions pertain primarily to the deck, but include some requirements for all-steel box girders, which are ...
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Cracks in Steel Orthotropic Decks

1990
Many cracks have been discovered in steel orthotropic decks during the past 12 years. They occurred either at the rib-to-deck plate junction or at the rib-to-floor beam junction, depending on local facts. Frequent inspections on a large number of decks allowed observation of their appearance and progress in order to set up a plan of action and repair ...
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Stress concentration in steel bridge orthotropic decks

Journal of Constructional Steel Research, 2005
Abstract The structural behaviour of orthotropic steel decks is characterized by the complex interaction between its components (deck plate, ribs and floorbeams) and also by the interaction between the structure, the pavement and the vehicle’s wheels tyres.
Michèle S. Pfeil, Ronaldo C. Battista, Aluísio J.R. Mergulhão   +2 more
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Blast Resistance of Steel Orthotropic Bridge Decks

Journal of Bridge Engineering, 2012
AbstractThe main objectives of this study were to: (1) study the response of bridge decks to blast effects resulting from an explosion on the deck; and (2) develop efficient technologies and systems that can be used in design and construction of bridges to enable them to survive blast attacks without collapse.
J. Son, A. Astaneh-Asl
openaire   +1 more source

INFLUENCE SURFACES FOR ORTHOTROPIC STEEL BRIDGE DECKS.

Proceedings of the Institution of Civil Engineers, 1975
An analytical method to produce influence surfaces for stiffened steel bridge decks is described. It uses dynamic relaxation to solve the finite difference form of the orthotropic small deflexion plate equations and employs A variable orthogonal mesh to ensure maximum economy of computer time and storage.
PJ DOWLING, AS BAWA
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Wearing Surfaces for Orthotropic Steel Bridge Decks

Transportation Research Record: Journal of the Transportation Research Board, 1999
In the state of Alaska, a six-span 884.5-m orthotropic steel bridge crosses the Yukon River at a 6 percent grade. The bridge is on a gravel road, it has a roadway width of 9.2 m, and the orthotropic steel deck is supported by two steel box girders 154.9 cm wide and 414.0 cm deep. The structure is expected to support the oil pipeline, a future gas line,
J. Leroy Hulsey, Liao Yang, Lutfi Raad
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Fatigue Assessment of Orthotropic Steel Bridge Decks

1990
Fatigue failures have occurred in the steel orthotropic decks of several bridges in Europe, some after little more than a decade in service. This has led not only to expensive inspection and repair procedures but has also highlighted the difficulty of assessing these decks, which lie outside the scope of most design codes.
C. Beales, J. R. Cuninghame
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Fatigue behaviour of orthotropic steel decks

1990
Recently, some orthotropic steel bridge decks have suffered fatigue cracks For a better knowledge of this problem, the European Community promoted and financed collective research work in which seven laboratories in six European countries participated The Italian contribution to this research, deals with the experimental determination, on full scale ...
Caramelli, Stefano, Croce, Pietro, Froli, Maurizio, Sanpaolesi, Luca   +3 more
openaire   +1 more source