[2079] SHEAR BEHAVIOR PREDICTION OF CENTRIFUGAL FORMING HOLLOW CIRCULAR SFRC PILES USING THE FINITE ELEMENT METHOD AND X-RAY TECHNIQUE
Keywords:steel fiber、fiber orientation、PHC pile、centrifugal forming、X-ray、shear behavior
This paper presents a finite element (FE) method to assess the shear performance of hollow circular steel fiber reinforced concrete (HSFRC) piles, considering the effects of fiber distribution and orientation influenced by centrifugal forming. A novel approach is developed to identify a constitutive tensile stress-crack opening relation for the HSFRC material using prisms made of SFRC and fiber distributions observed in small HSFRC piles visualized through an X-ray technique. The FE method provides a highly accurate prediction of the shear behavior of large HSFRC piles.