2017 Volume 24 Issue 95 Pages 95_13-95_24
The application of spheroidal graphite cast iron to a bridge deck slab is explored. The deck slab is expected to have a good seismic resistance with little possibility of fatigue crack. The dimensions of the deck slab are determined by the 3-D FEM analysis to satisfy the design requirements. Through a careful casting process, the spheroidal graphite cast iron deck slab is produced. Various material properties are tested and satisfactory results are obtained. The slab is then loaded statically. The results are in good agreement with the finite element predictions. Furthermore, the fatigue durability test is carried out. No fatigue cracks are initiated even though the number of loading cycles reaches 10,000,000.
