Ten elements were used along the axis to discretize the
beam. The tolerance of 0.1% was chosen to give the convergence of each load increment of 2 kN or less near the limit load.
The displacement-applied load curves measured experimentally at the beam span centre and obtained by using the presented model are displayed in Figs. 6-8 for the three analysed cases. For each of the three shear reinforcement rate cases, six specimens were tested resulting into the envelope represented by the two experimental curves plotted in Figs. 6-8. As one can see. the model used to transfer shear forces from the damaged concrete material points to the shear reinforcement worked very well. Moreover, the damage induced by the shear stress components has been taken into account. Small differences are observed when comparing the results with the values obtained by using a more simplified formulation where the shear effects are not taken into account. The large differences are near the limit load where more shear forces are transferred to the stirrups. For the over reinforced case the difference of taking into account or not the shear effects is small even near the limit load due to the presence of larger dowel forces. This is expected because the experimented beam is too long. However,
不要在线翻译的哦~~~