MODELING PULL-OUT BEHAVIOR OF THE DEFORMED REBAR EMBEDDED INSIDE THE REINFORCED CONCRETE

This study presents the modeling of pull-out behavior deformed bars embedded inside reinforced concrete element. The simulation uses an in-house finite element package called 3D-NLFEA. Sufficiently small solid elements that consider frictional resistance and mechanical interlocking between bar thread matrix were used in simulation. effect compressive strength, cover thickness, stirrup configuration on capacity modeled specimens are investigated thoroughly. found out 3D-NLFEA can capture bond-fracture process at interface concrete. fracture occurs was dominated by tensile splitting failure. presence stirrups confined restrained crack propagation significantly influences capacity, cracking pattern, failure with analysis results from also compared 3D-RBSM available literature. From comparison two packages, it be concluded result is somewhat more conservative to 3D-RBSM.