engleski

NUMERICAL MODEL FOR TIME-DEPENDENT ANALYSIS OF PRESTRESSED CONCRETE SLABS AND SHELLS

The numerical analysis of prestressed concrete slabs and shells under short term and long-term static load was shortly presented. The model simulates the dominant nonlinear effects of concrete, reinforcing and prestressing steel. Reinforcing steel is modelled as a separate layer with anisotropic material properties. Prestressing steel is simulated by 1-D curved element embedded in the shell finite element. The numerical procedure, which describes the prestressing contributions and time-dependent effects, are briefly presented. The model is verified by comparison of the numerical results with the results of performed experimental test of prestressed concrete shell.

Prestressed concrete shell; Tendon; Numerical model; Creep; Shrinkage.

nije evidentirano