Civil Engineering Reference
In-Depth Information
Figure 3.28
Arching action in reinforced concrete fl oor
can carry the fi nal unbalanced arch thrust. In this case, this abutment consisted of a
length of concourse slab which could transfer the thrust to the perimeter walls at the
ends of the excavation.
3.12.3 Bridge deck slabs
A further example of the practical importance of arching action is the design of the
deck slab of concrete bridges. Although such slabs, which have to carry the wheel loads
of traffi c, are usually designed as bending members, signifi cant savings in reinforcement
may be realised by considering their arching action. This is discussed in more detail
in
9.3.5
.
