Experimental Analysis and Numerical Simulation of Ultra-High Performance and Normal Concrete Compound Columns

摘要

The combination of Ultra-High Performance Concrete (UHPC) and conventional construction methods (the use of Normal Concrete –NC) results in columns with a high load capacity. Compared with columns made only of UHPC or High Performance Concrete (HPC), they provide a better ductility and superior fire resistance because the external layer of NC reduces the penetration of heat in the core made ofUHPC. From the total of 16 columns which were tested in the experimental program, 12 columns had a compoundand 4 columns had a simple cross section. An analogy is made between the results of the experimental test and the results achieved with the Finite Element Analysis (FEA) softwareTNO "Diana".