| Title |
An Experimental Study on the Flexural Behavior on High-Performance Reinforced Concrete Beams |
| Abstract |
In this paper, the concept of high performance concrete(HPC) is to improve the workavility of high strength concrete(HSC). This paper presents a parametric study of the flexural ultimate strength and the curvature ductility capacity of high performance reinforced concrete sections. In this test, the experimental parameters are the strength of concrete(f'c), the tension steel ratio(p), the compressive steel content (p'/p).Twlve specimens were tested to study the influence of these parameters to flexure ultimate strength, crack propagation, deflection, and ductility.From the test results, and increase in the compression steel content increased the ductility. Also, the HPC beams subjected to flexural moment behaved more brittly than the normal strength concrete beam at the similar reinforcement condition. Thus when thd concrete strength exceeds 700kg/cm2, for ductile behavior, it was appeared that the reinforcement ratio is less than p-p'=0.64pb. Also, the flexural ultimate strength using the retangular stress block parameter(B1,y)of New Zealand standard coincided with the flexural ultimate strength by the experiments in HPC beams. |