Service-Stage Analysis of Curved Composite Steel-Concrete Bridge Beams

State of the art on the time-dependent behaviour of composite steel–concrete structures

“…These formulations were extended in the following years to account for material nonlinearities and different concrete time-dependent models, e.g. [57][58][59][60][61][62][63][64], as well as curved beams [65].…”

Analysis, design and construction of curved composite girder bridges: State-of-the-art

“…Marí, Mirambell and Estrada (2003) described effects of construction process and slab prestressing on the serviceability behavior of composite bridges, which can be consulted to study on the long-term behavior of curved composite girders. Giussani and Mola (2006) did research on the long term behavior of composite steel-concrete bridge beams with a circular axis. A case study was performed to point out the most important prerequisites of the deferred behavior of composite steel-concrete curved bridges, in particular the interaction between the different components of internal actions due both to the curved geometry of the beam and to the delayed deformations of the concrete slab induced by creep.…”

Nonlinear elastic analysis of composite beams curved in-plan

“…(2) to (6), by substituting into Eq. (7), using the rotation matrix components and curvature expressions in Appendix A and omitting the third-order small terms, the normal strain can be written as…”

“…The effect of initial curvature on the composite beam behaviour is illustrated by comparing the analysis results for different 6). The maximum applied load is increased up to P = 1500 kN mid-span load and q = 42 kN/m distributed load, hence increased tenfold, in order to observe the effects of geometric nonlinearity.…”

“…[1]), comparatively few studies have been reported on curved composite beams, and in particular on their numerical modelling. Colville [2], Thevendran et al [3,4] and Shanmugam et al [5], conducted experiments on steel-concrete composite curved beams to investigate the ultimate load behaviour, while Giussani and Mola [6] recently developed an analytical formulation for elastic composite beams curved in-plan by assuming full interaction between the steel girder and the concrete deck. Chang and White [7] discussed the modelling considerations for composite curved steel bridges and illustrated the effects of cross-sectional distortions.…”