what is not true about moment fram building 1 need less str

what is not true about moment fram building ?

1) need less streel compared to braced fram structure
2) more labor intensive than braced fram structure
3) larger deflection can be expected compared to braced fram structre
4) easy to design doorway and window

Solution

Moment frame building consume more steel compared to braced frame building.

For4 to8 stories, steel consumed by brace frame building is 87% of steel consumed by moment frame building.

For more stories, it is about 77%.

Hence,correct option is 1.