Long-term behavior of composite concrete girders made continuous
Abstract
Time-dependent effects are significant for the design of range of concrete structures. Reliable data for creep and shrinkage properties of concrete and analytical procedures are needed to account for these effects. A number of software applications have been developed to deal with time-dependent
properties of concrete. In this paper numerical simulation of experimental long-term behavior of composite concrete beams made continuous is presented. DIANA software nonlinear FEM analysis
and a simplified method for prediction of the continuity restraint moment are compared with the experimental results. ACI 209, MC 90, LRFD and EC2 material models have been applied. Material models were also compared with respect to compliance of calculated and measured moments.
Keywords:
composite beams / concrete / construction methods / creep / shrinkage / nonlinear analysisSource:
Macedonian association of structural engineers - MASE, 2011, 1, 203-208Publisher:
- MASE