RILEM Technical Committee has organized an ongoing Round Robin research program to study the response of over-reinforced concrete beams subjected to four-point loading conditions. The major objective of the program is to predict the load-deformation behaviour of over-reinforced concrete beams…
RILEM Technical Committee has organized an ongoing Round Robin research program to study the response of over-reinforced concrete beams subjected to four-point loading conditions. The major objective of the program is to predict the load-deformation behaviour of over-reinforced concrete beams based on the mechanical parameters of the respective composite constituents. Therefore, a wide range of experimental and theoretical investigations were carried out at different research facilities. At University of Leipzig, an analytical study was conducted to compute the load-deformation response of over-reinforced concrete beams using the so-called "BDZ-Model". The BDZ-Model employs fracture mechanics parameters and takes into account the failure localization in a certain damage zone to predict the fracture behaviour of concrete under compressive loading.