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Post-Fracture Redundancy Evaluation of a Twin Box-Girder Shinkansen Bridge in Japan
IABSE Reports, 2016<p>As the national bridge inventory ages and traffic volumes increase, the government is spending more on maintaining their existing structures to extend the service life of the current bridge inventory. This includes two-girder bridges that are classified as fracture critical and non-redundant.
Weiwei Lin +4 more
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Vortex Induced Vibration Analysis of Twin Box Girders by Means of Computational Fluid Dynamics
Applied Mechanics and Materials, 2014This paper analyzes the vortex induced vibration (VIV) phenomena of twin box bridge girders by means of 2D computational fluid dynamics (CFD) models. The modeling of turbulence follows a methodology known as large eddy simulation (LES) in which the large scales of turbulence are resolved, while the small ones are modeled by means of sub-grid-models ...
Qing Liang Zhan +3 more
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Nonlinear aerodynamic and energy input properties of a twin-box girder bridge deck section
Journal of Fluids and Structures, 2017Abstract By means of computational fluid dynamics (CFD), the nonlinear aeroelastic properties of a bridge deck configuration is investigated in this study in terms of amplitude-dependent flutter derivatives and indicial functions. The results are partially compared with experimental results.
Zhitian Zhang +3 more
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Wind-induced nonlinear behaviors of twin-box girder bridges with various aerodynamic shapes
Nonlinear Dynamics, 2018Wind-induced nonlinear oscillations of twin-box girder bridges are very sensitive to the aerodynamic shape of the deck (i.e., slot width ratio (SWR) and wind fairing shape) due to the complicated flow characteristics around the bridge deck. This paper presents a fully integrated finite element (FE) model in time domain, involving a nonlinear ...
Rui Zhou +4 more
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Peculiar aerodynamic advantages and problems of twin-box girder decks for long span crossings
Bridge Structures, 2019Multi-box girder deck section (typically a twin-box) is considered an effective solution to increase the aeroelastic stability threshold. However, besides this positive feature, twin-box sections may have some aerodynamic problems that should be accurately addressed during the tailoring of the section: dependence of unsteady force coefficients of the ...
Zasso, A. +4 more
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Effects of gap width on flow motions around twin-box girders and vortex-induced vibrations
Journal of Wind Engineering and Industrial Aerodynamics, 2015Twin-box girders are employed in long-span suspension bridges for flutter stability. However, the flow around a twin-box girder is notably complicated. The effects of gap width on the flow characteristics at Re=5.58×104 and the vortex-induced vibration (VIV) of a twin-box girder at about Re=1.17×104 were experimentally investigated using a sectional ...
Shujin Laima, Hui Li
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Experimental Studies on VIV Countermeasures for Long-Span Suspension Bridge with Twin-box Girder
2017This paper was reviewed and accepted by the APCWE-IX Programme Committee for Presentation at the 9th Asia-Pacific Conference on Wind Engineering, University of Auckland, Auckland, New Zealand, held from 3-7 December 2017.
Wang, Junxin +3 more
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Yi Sun-sin Bridge: High Speed Wind Tunnel Tests of Twin Box Girder
IABSE Congress Reports, 2012<p>This paper presents experimental results for twin box girder of the Yi Sun-sin Bridge in order to investigate the sensitivity of the Reynolds numbers on aerostatic force coefficient. High speed wind tunnel tests on 1:30 scale sectional model were carried out at the aeronautical wind tunnel in Korea Air Force Academy.
Seungho Lee +2 more
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A nonlinear numerical scheme to simulate multiple wind effects on twin-box girder suspension bridges
Engineering Structures, 2019Abstract The present study aims to investigate multiple wind effects on long-span twin-box girder bridges by developing a time-dependent nonlinear numerical scheme, which takes into account a range of aerodynamic forces, such as the stationary aerodynamic force, self-excited force, buffeting force and vortex-induced vibration (VIV) force.
Rui Zhou +5 more
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