American Society of Civil Engineers


Displacement Method for the Long-Term Analysis of Steel-Concrete Beams with Flexible Connection


by Francesca Giussani, Ph.D., (corresponding author), (Research Fellow, Dept. of Structural Engineering, Milan Univ. of Technology (Politecnico), P.za L. da Vinci, 32, 20133 Milan, Italy E-mail: francesca.giussani@polimi.it) and Franco Mola, M.ASCE, (Professor of Theory and Design of R.C. and P.C. Structures, Dept. of Structural Engineering, Milan Univ. of Technology (Politecnico), P.za L. da Vinci, 32, 20133 Milan, Italy. E-mail: mola@stru.polimi.it)

Journal of Structural Engineering, Vol. 136, No. 3, March 2010, pp. 265-274, (doi:  http://dx.doi.org/10.1061/(ASCE)ST.1943-541X.0000109)

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Document type: Journal Paper
Abstract: The long-term behavior in the service stage of continuous composite steel-concrete beams with deformable connectors subjected to uniaxial bending and axial load is presented. The problem is dealt with by recurring to the displacement method, assuming the bending curvature and the longitudinal deformation as unknowns, and obtaining a system of differential and integro-differential equations. The results are compared with literature experimental tests. A case study is then discussed, referring to a continuous beam subjected to permanent and variable loads, to concrete shrinkage, and to a vertical displacement imposed to the central support or to the prestressing of the central part of the beam.


ASCE Subject Headings:
Composite beams
Deformation
Connections
Creep
Shrinkage
Prestressing
Displacement

Author Keywords:
Composite steel-concrete beams
Deformable connectors
Creep
Shrinkage
Prestressing
Imposed displacements