Question

The advantages of providing bearings in a bridge is/are

(i) To absorb movement of girder

(ii) To spread the load from the superstructure in such a manner that the bearing stress induced on the material is within the permissible limits.

(iii) To take up vertical movement due to sinking of supports

1. Only (ii)
2. (i) and (ii)
3. (i) and (iii)
4. (i), (ii) and (iii)

Answer 1

Correct Answer - Option 4 : (i), (ii) and (iii)

Concept:-

The bridge bearings are the structural devices which are placed between bridge superstructure and substructure.

The bridge bearings serve the following functions: -

1. To transmit loads from superstructure to substructure.

2. To accommodate horizontal relative movement between the superstructure and substructure.

3. To take up vertical movement due to sinking of the support.