Project 1 - MODELLING, ANALYSIS & DESIGN OF TALL BUILDINGS IN ETABS

Aim:

To model a tall building in ETABS for the given architectural drawing along with the given parameters and to design their frame elements.

Procedure in ETABS modeling:

a) Column spacing and wall spacing marking in the architectural drawing

b) Story assignment

c) Grid assignment

d) Material assignment

e) Frame sections, Slab section & wall section assignment

f) Load patterns

g) Mass source & P-delta assignment

h) Load case definitions for Earthquake and Wind

i) Load combinations for concrete frame design

j) Modeling of columns, beams, slabs & shear walls

(4 Different column sizes are used for the tall building)

k) Wall load & Floor live load assignment

l) Run analysis & Check design of frames

(Utilization factor kept as 0.9)

m) Verification of gravity load at base reaction:

Floor area of each level = m2

Live load assigned = 3 kN/m2

Total live load at each level = kN

Overall live load in the tall building = 25 story x kN = kN

 

This is verified with the ETABS live load base reaction result as given below.

 

n) Design of Column & beam rebar:

Beam

Column:

Conclusion:

Thus a tall building with all given parameters and for the given architectural drawing is modeled and designed.