Orthotropic Analysis of Steel Deck–Girder–Rib Systems Subjected to Transverse Load

As one of the advanced modern techniques, orthotropic steel decks are widely used in bridge engineering. Because of its structural complexity, theoretical analysis of mechanical performances of the orthotropic steel bridge deck is very difficult. Therefore, in the past 50 years, a series of experime...

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Bibliographic Details
Published in:International journal of steel structures 2019, 19(3), , pp.1010-1022
Main Authors: Chen, Mu, Xue, Jianghong, Li, Ping, Jin, Fusong
Format: Article
Language:English
Subjects:
Bridge decks
Bridge loads
Civil Engineering
Composite materials
Deformation
Engineering
Exact solutions
Finite element method
Girder bridges
Girders
Kinematics
Material properties
Materials Science
Mathematical analysis
Orthotropic bridges
Orthotropic plates
Reinforcing fibers
Ribs (structural)
Ritz method
Series (mathematics)
Solid Mechanics
Steel bridges
Steel decks
Steel structures
Structural steels
Transverse loads
토목공학
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Summary:As one of the advanced modern techniques, orthotropic steel decks are widely used in bridge engineering. Because of its structural complexity, theoretical analysis of mechanical performances of the orthotropic steel bridge deck is very difficult. Therefore, in the past 50 years, a series of experiments and finite element analysis have been used to obtain the information. A steel deck–girder–rib bridge system subjected to the transverse load is investigated in this paper. The bridge deck is laid on four simply-supported girders at the four edges and is reinforced by ribs in longitudinal direction. The longitudinally stiffened deck is idealized as an orthotropic plate. The equivalent material properties in the longitudinal and breadth directions of the orthotropic plate are evaluated using micro-mechanics of composite material by treating the ribs as reinforcing fiber-beams. Governing equations for the deck–girder–rib bridge systems are established and are solved using Ritz method. The analytical solutions are substantiated by comparing with the classic solutions of an isotropic deck with fixed ends and with the finite element predictions. The analytical approach presented in this paper eliminates the very intricate and arduous kinematics study among deck–girder–rib and allows the bridge engineer to fast and convenient estimate the deformation in an orthotropic bridge deck.
ISSN:1598-2351
2093-6311
DOI:10.1007/s13296-018-0180-1