Cantilever Vertical Component of Earthquake

[ce.agp_03]

Hello.

It says in UBC code that horizontal cantilever components shall be designed for a net Upward force of 0.7CaIWp, does this mean that I should replace the value of Ev = 0.5CaID with the 0.7CaIWp at upward direction?

Does this also apply for the reversal of loads? If so, should Downward force retain at 0.5CaID?

Many thanks.

 

[r13]

It seems to me that 0.7CaIWp is the minimum/mandatory design force for the cantilever, however Ev is mandated in the load combination to include the vertical earthquake effect of the entire structure, regardless how the component was designed.