Challenge

Conceptual design of a building with columns and shear walls

As the structure is more restrained it will be more shrinking, expanding and cracking.
There will be more floor shrinkage and expanding in structure A whereas there will be minimum cracks in structure B and C.
The shear walls in the structure also decide whether the floor vibration is more or less in the structure it will be better placing a column at the corners.So that it will reduce the cracks instead of having a shear walls at the corner in the structure.
The Torsion in the structure C is more when compared to structure A and B because in the structure C there will be an eccentricity.
The redundancy in structure A and B is more when compared to structure C because there will be an eccentricity in structure C in the left side where the length of the wall 10 meters which cannot carry load equally in either direction.
For Lateral stiffness structure C is more laterally stiff when compared to the structure A and structure B because there will be an eccentricity in structure C in the left side where the length of the wall 10 meters which cannot carry load equally in either direction.

In this structural frame , there is a two-way eccentricity of the center of mass in accordance with the center of stiffness , which is eccentricity of x-direction is larger than y-direction.
In this structure beams are provided at stronger than column, so it can consider as Weak column strong beam design in nature.
Therefore this structure need some shear wall to resist the column failure, when the lateral forces acting about the structure.
Combination of shear wall and column tends to prevent the failure about the structure during the seismic forces occur.
As the frame plan, we can see about the alignment of beam is uniformly continuous of B1 and B2 at X- direction, and B11 & B12, B9 & B10 at Y-direction.
But another all beams are provided at discontinuous of structural frame, so here cause to difficult of transmission of load evenly at entire structure due to action of lateral forces.
Beams with long span may have their top reinforcement at the supports governed by factored gravity load, rather than by the seismic design situations.
Therefore,this structure will alternate to better portal of better offset at symmetric in nature.
The column beams connections should be in proper cross section area, then it achieve lateral stiffness, mass regularity, moment resisting factor.
As we consider beam-sway mechanism in strong column/ weak beam design frames is better, because of its achieve a uniformly spread, global inelastic displacement demand at roof level, to all storeys.

This plan totally unsuitable for heavy seismic zone areas.
In this plan, the interior columns are in unsymmetric.
The partition wall are provided through the base of beam, should support the lateral deformation due to the structure.
The interiors beams will supports the slab, then the lateral load resisting the failure due to earthquakes.
For this irregular columns in plan, there we provided the flat slabs, because its directly stay in a column centroidal axis.
For here, the beams at different locations is irregular in plan and are continuous and is disallowed to resist the seismic load in the region.
In this plan, the flat sab is more appropriate than a regular beam column junctions, because of as its provide support to the columns without any provision of the beam, which reduces the weight of the building and also helps in the ductility of the structure by indirectly.
for the solution of this structure, we provide the shear wall from the foundation of structure through vertical components, it should minimize the loss of sudden failure occur due to lateral force acting on structure.

Ship work like this
in your own course.