Roads and Bridges - Drogi i Mosty
6, 1, 2007, 19-39

Rheological effects in composite beams with sandwich deck slab

Czesław Machelski Mail
Wydział Inżynierii Lądowej i Środowiska Uniwersytetu Zielonogórskiego
Robert Toczkiewicz Mail
Instytut Inżynierii Lądowej Politechniki Wrocławskiej

Abstract


The paper concerns bridge spans made of steel beams combined with a concrete slab, boarding for the bridge deck slab. It also relates to bridges made of precast beams, rehabilitated with use of additional layer of a concrete slab. Effects of connection of a bridge beam with a sandwich concrete deck slab are analyzed in the work. For such composite structure there is proposed a solution in which global, resultant internal forces are separated into components imposed to the elements forming the girder i.e.: the beam and both layers of the sandwich slab. Influence of concrete creep and shrinkage on the internal forces and deflections of the composite girder is shown. Rheological processes are described with use of a model of the substitute modulus of elasticity. Numerical examples given in the paper show the effects of concrete creep and shrinkage in steel-concrete composite bridges, particularly in continuous beams.

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Rheological effects in composite beams with sandwich deck slab

  
Machelski, Czesław; Toczkiewicz, Robert. Rheological effects in composite beams with sandwich deck slab. Roads and Bridges - Drogi i Mosty, [S.l.], v. 6, n. 1, p. 19-39, apr. 2007. ISSN 2449-769X. Available at: <>. Date accessed: 28 Feb. 2024.