Load sequence in phases can be considered applying the self-weight load only to the story added in the appropriate phase.

Assuming that the material will not go into yield stage ( will always be at the elastic stage), is there any need to consider load sequence in construction stage for structural analysis?

I think there is no need, because no matter what, the final finished structure should always have the maximum loads at each floor/element, whereas during the construction, each floor/element loading is only partial. So if we consider the final structure analysis, we already consider everything adequate for design. No?

But why code of practice still recommend it?

Load sequence in phases can be considered applying the self-weight load only to the story added in the appropriate phase.

Assuming that the material will not go into yield stage ( will always be at the elastic stage), is there any need to consider load sequence in construction stage for structural analysis?

I think there is no need, because no matter what, the final finished structure should always have the maximum loads at each floor/element, whereas during the construction, each floor/element loading is only partial. So if we consider the final structure analysis, we already consider everything adequate for design. No?

But why code of practice still recommend it?