Conceptual design of a building with columns and shear walls
1. For restraint of floor shrinkage -
A - full restraint at all corner that will lead to crack in floor
B - restraint along the edges Average crack
C - no uniform Restraint less crack will developed
The Lateral Stiffness -
A - compratively lower lateral stiffness
B - uniform and comparatively higher lateral stiffness
C - Non uniform lateral stiffness
So the b option is good
Torsion with respect to vertical axis
A - It will provide more resistance to twist
B - It will provide good resistance to twist
C - It will provide poor resistance to twist
So the A is best
Vertical reinforcement for similar base capacity
A - Wall are nominal flexural moment and heavy twisting moment
B - wall are subjected nominal twisting moment
C - wall are subjected to heavy flexural moment and twisting moment
Statiic Eccentricity -
A - Symmetric
B - symmetric
C - un- Symmetric
System Redundancy
A - Uniform place of lateral loadin both axes
B - uniform place the lateral load on both axes
C - concentrated lateral load in both axes
So A B have more reductant then C
Foundation system
A - Due to L shape wall geometry of foundation and its design will be critical
B - wall are in line and easy to design and fix geometry
C - wall are in line easy to fix but critical to design
A and B will have isolated and strip footing but C wiil go with Peripheral box founndation
Architectural constraient -
A - wall will obstract corner
B - wall will obstract face of building
C - vrtical wall will not allowed passage
A designwill prefered
2.Indirect lateral load transfer in X and Y direction
the beam are connecting to another beams which is ineffective during lateral load transfer .
so the primary beam is prone to shear faliure
Eccentricity - the longer distance between centre of mass and centre of stiffness the higher trosional moment of building
As per plan building is subject to higher torsional moment in both direction
Strong beam and weak column
Cloumn 25x 25 but beam have deeper section 50 cm
If column reinforcement are greater than beam them it is okay but if not then is doubtful
For change we have to avoid connection of beam by shifting column
change the column size
3. Floor plan - It is not uniform or symmetry so natural any lateral load induced inn the floor will not have 100 % influence in same direction
Random Internal column - As they are random they are unable to transfer lateral load efficiently and canot achieve desirable building response
Floor to Floor variation in partition wall and beams - They aare impotant but heavy distortion and distribution of lateral load
suugestio
Heavy torsional forces can be controlled by respective lateral load system so corner shear wall
shear wall must be on the left side as it is larger area
it should be connected by link beams to transfer shear from one to the other
internal column are supported by isolated footing and shear wall can connect to them by tie beam