Abstract:
Along with increasing environmental damage due to the use of synthetic materials in large volumes, it has an
impact on global warming, so scientists and field practitioners are innovating a lot to use environmentally friendly
materials. One type of environmentally friendly concrete structure is the Hollow Reinforced Concrete Beam
(HRCB) type, which is usually used as a bridge girder. This study aims to observe the process of horizontal failure
of the girder due to shear stress, and analyze the causal factors, to ultimately provide a solution to minimize the
failure of the girder due to the horizontal shear failure. This research was conducted with an experimental
quantitative approach which was described by using the analysis of the bridge girder structure in accordance with
applicable standards. Full-scale experiments were carried out on intact beams (without holes) and hollow beams.
This study shows that the failure that occurs in hollow beams is horizontal shear failure, which is caused by the
width of the residual beam that is insufficient to carry the main stress due to the combination of horizontal shear
forces and bending stresses, which occur in the quarter span zone of the girder. This study recommends that in the
use of hollow reinforced concrete girders, care must be taken in the placement of bottles (as holes), so that during
casting their position does not experience displacement in the concrete cross section, which causes spalling in the
cross sectional area of the girder.
