Soil Pressure
Data Used:
fc’ = 40 MPa, fy = 420 MPa, Surcharge LLD = 20 kN/m2, Surcharge LLC = 71.5 kN, g =20 kN/m3 and K0 = 0.5
B.C = 300 kN/m2 and K = 22000 kN/m2/m’ TO BE VERIFIED ON SITE AT LEAST
P1 = 0.5* 20+0.5* 20* 0.5 = 15
P2 = 0.5* 20+0.5* 20* 2.7 = 37
P = C* Z+D
@Z = 0.0 --- P = 37
@Z = 2.2 --- P = 10
C = -10 & D = 37
P = -10Z+37
Kn/m2
Kn/m2
Ref. AASHTO-2024-10th edition.
Ref. P-0005-PH01-D02-00000-SCL-TRP-CIV-000001-00-Geotechnical Site Investigation Report
Etabs Model
Model Views
Bottom Slab Dimension
Grids Data
Stories Data
Material C40/50
Rebar 420
Slab 300 mm in thickness
Wall 300 mm in thickness
Load Patterns
Load Combination 01
Load Combination 02
LL at top slab = 20 kN/m2 surcharge
H at top slab = 0.5 x 20 = 10 kN/m2
H at bottom slab = 20 x 2.7 = 54 kN/m2
LLD at bottom slab = 10 KN/m2 surcharge
Walls Load EP + Surcharge
Area Spring Assignment
Area Spring Definition
Pier And Spandrel Assignments
Walls Design Preferences
Pier Design Overwrites
Spandrel Design Overwrites
B.C due to ENV SERVICE (ABS MAX)
B.C due to ENV SERVICE (MAX) after redistribution
Assigned RFT for piers
D/C Ratios for piers
Walls PMM failure
Walls shear failure
Spandrel longitudinal required RFT
Spandrel shear required RFT
Safe Model to check Top Slab
story f2k model was exported from etabs to check slab deflection and reinforcement.
All assignment data
Design preferences
Cracking analysis data
Design combinations
Incremental Deflection
Long Term Deflection
No add. Required RFT above T12-150
Top 1-1
Top 2-2
Bottom 1-1
Bottom 2-2
No add. Required RFT above T20-150 FOR BOT SLAB
TOP 1-1
TOP 2-2
Bottom 1-1
Bottom 2-2
Conclusion:
-
Use wall and slabs with t = 300 mm.
Use T12-150 VR&HZ RFT for walls.
Use T12-150 T&B for Top slab.
Use t20-150 T&B for Bottom Slab With Dimension (1.8x1.5x.3 m)