Abstract
In order to reveal the feasibility of engineering cementitious composite (ECC) link slab applied to hollow slab beam bridge, the construction process of ECC link slab was simulated based on the birth-death element method and tracking element. Nonlinear analyses of ECC link slab under six load conditions were carried out based on Chinese bridge code. The theoretical formulas are derived and calculated for three of the unfavourable conditions. Finally, the effects of five support conditions on ECC link slab were analysed. The results show that the maximum tensile stresses of the ECC link slab under the overall cooling and negative temperature gradient are 3.569 MPa and 3.440 MPa, and the ECC material has entered plasticity. Theoretical calculations and finite element (linear) results are similar and conclude that temperature-induced axial deformation is the main cause of ECC link slab damage, especially the overall cooling and negative temperature gradient. At the same time different support conditions do not change this result, but rubber bearings can well improve the force behaviour of ECC link slab due to its good deformation coordination ability.
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