Abstract
The shear behavior of 18 different groups of hybrid fiber (steel fiber and polypropylene fiber) reinforced HPC deep beams and 2 groups of HPC deep beams without fiber were discussed through experimental study and nonlinear finite element analysis. The shear tests were made under the static load and the finite element analysis software ABAQUS was used in numerical simulation. Results illuminate that hybrid fiber can significantly increase the diagonal cracking load and the ultimate shear load of deep beams although it can not change the brittleness of shear damage. Good agreement are found between test results and simulative results, including failure mode of hybrid fiber reinforced HPC deep beams, load-displacement curves, stress distribution of steel bars and concrete, etc.
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