Is there any facility in STAAD to design buildings for blast loading?

The analysis for blast loading is done using the time history analysis feature.

The blast load has to be defined as discrete time-force pairs, with the force changing from a very small value to a large value, and then back to a small value over a very small time interval. Please refer to example 16 for help in specifying an arbitrary time-force function.

STAAD can perform design for the maximum forces resulting from the time history analysis. The examples manual contains examples on steel and concrete design illustrating the commands and parameters required to carry out design.