Precast Concrete Vertical & Laretal Forces Resisting System

[cdous]

As far as I have encoutered the combinations of External Moment Resisting Frames & Internal Shear Walls, External Shear Walls & Internal Moment Resisting Frames, Moment Resisting frames are comminly used in precast concrte buildings with the Moment Resisting Frames specially for one storey buildings.
A local contractor in the middle east insists of using only Shear walls in a H type one storey building of 45mx40m with plenty of protrusions in plan.
The building is in average seismic zone with pga of 0.19g
Shear walls aren't aligned in the transvesre direction.....
His layout is far from any rectangular shapes with unclear force flow paths..basically against the PCI general guidelines
The plan is not PCI accredite.
Has anyone got experience of such structural system ?
Had him divide the volume in three distinct structural volumes bu the anomalies rgarding shear wall are there...
Appreciate an answer as he is in the conceptul design stage.

 

[MotorCity]

In an ideal world, all buildings would be a box with exterior shear walls. In the real world, this is not always the case. There is certainly nothing that prohibits odd arrangements of shear walls as long as they are designed and detailed correctly. If you have a rigid diaphragm, the lateral forces will find their way to the shear walls on their own. If you have a flexible diaphragm, the lateral forces will need a little help getting into the shear walls using collectors, drag struts, etc.