Question

In seismic areas, the most crucial requirement for precast concrete is:

1) not to build higher than two stories.
2) to tie elements together laterally.
3) to make ductile concrete beams.
O 4) to use only steel columns.
5)
precast concrete cannot be used in seismic zones.

Answer 1

Option 2, In seismic areas, the most crucial requirement for precast concrete is to tie elements together laterally

Step-by-step explanation:

In seismic areas, the in-plane lateral forces are very larger and hence in order to restrict the lateral movement governed by the lateral force, lateral ties are essential .

Specific design detailing such as interior and perimeter ties in the floors causes diaphragm behavior and hence distribute the load evenly without any movement.

Hence, option 2 is correct