Composite stocky box girders of variable thickness in high-support expressways: Constrained torsional analysis

Yanan Luo, Xiaoming Lu,Yaoqing Gong

Engineering Structures(2021)

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Abstract
•A kind of new theory is formulated for the composite stocky box girders.•The deformation shapes of a CSBG are expressed as a set of the families of curved surfaces.•The mechanics analysis model is a no-simplified CSBG itself.•The mathematical model for the analysis of a CSBG is a set of ODEs.•An ODE based method is developed for the constrained torsional analysis of CSBGs.
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Key words
Structural analysis,Constrained torsion,Nodal line method,Composite stocky box girders,Boundary value problems of ODEs
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