Conceptual design of a building with columns and shear walls

1.

Restraint of floor shrinkage

1. Will have higher restraint to shrinkage, thus lead to cracks in the floor
2. Average
3. Will not effectively restrain the shrinkage, so possibly less cracks

The lateral stiffness

b. will provide higher lateral stiffness for a pure seismic acceleration in X and Y direction

Torsion with respect to vertical axis

a. will be best option with respect to torsional resistance whereas option(c) is the worst one

Vertical reinforcement for similar base capacity

c. will require higher vertical reinforcemntand option(b) will require the least

Static eccentricity

c. will have static eccentricity and it is significant

Sytsem's redundancy

a. and b. are more redundant than option c

Foundation system

b. and c. shall be incorporated with isolated footings/ strip footings. Option a is recommended to have peripheral box foundation

Architectural constraints

Option a is preferred one. option b is subjected to discussion. option c will not be accepted both architecturally adn commercially

2.

Indirect lateral load transfer in X and Y direction

The beams are connecting to another beams which is ineffective during lateral load transfer. In such condition, the primary beam is prone to shear failure

Eccentricity

The longer the distance between center of mass and center of stiffness, the higher torsional moment of the building. As per the given plan eccentricity, the building is subjected to higher torsional moment in both X and Y direction

Strong beam weak column possibility

The size of columns majorly mentioned as 25cmX 25cm. But all the beams have much deeper section. Inertia of beam is visually higher than column. If the column reinforcement is adequately greater than that of beams, we are okay and since we do not have the reinforcement detail, this is doubtful. It is recommended to have slight bigger sizes for column