- مبلغ: ۸۶,۰۰۰ تومان
- مبلغ: ۹۱,۰۰۰ تومان
High Performance Fiber Reinforced Cementitious Composite (HPFRCC) materials exhibit strain hardening behavior under tensile loading. This strain hardening response occurs after first cracking of the material. In this paper, experimental and parametric studies are performed to assess the influence of the compressive strength, loading type and tension reinforcement ratio (ρ) on the ultimate deformation characteristics of reinforced HPFRCC beams. The analytical and numerical results for simply supported beams with different amounts of tension reinforcement ratio under three different loading conditions are presented and compared with each other and also with the experimental data, where available. The plastic hinge rotation capacity is increased as the loading condition is changed from the concentrated load at the middle to the uniform, and it is a maximum for the case of the two-point load. The effect of the loading type on the plastic rotation capacity of the reinforced beams with high amount of ρ is not as significant as that for the lightly reinforced beams. Based on the analytical results obtained using the nonlinear finite element method, new simple equations as function of the tension reinforcement ratio and the loading type are proposed. The analytical results indicate that the proposed equations can be used with sufficient accuracy for analysis of ultimate capacity and the associated deformations of RHPFRCC beams.