1. TOPIC 3: DESIGN AND ANALYSIS OF SHALLOW FOUNDATION
WEEK 8
CONSTRUCTION DETAILS FOR SHALLOW FOUNDATION
STRUCTURAL DESIGN OF SHALLOW FOUNDATION

2. Learning Outcomes Student should be able to:
Specify details for shallow foundation construction (CO2-PO10)
Determine the maximum bending moment
and shear stress for RC design
(CO2-PO10)

3. Construction Drawings
Raft Foundation
Pad Footing
Details on platform, footing sizes,
Reinforcement details, design bearing capacity

7. RC Design for Pad Foundation
Determine base area of foundation by dividing column load by the allowable bearing pressure on the soil.
Determine overall depth of foundation required by punching shear, based on column load only.
Select type of foundation: simple flat or sloping upper surface.
Check dimension by computing beam shear stress at critical section, on the basis that diagonal shear reinforcements should not be provided.
Compute bending moment and design the reinforcement.
Check bond stresses in steel.

11. Shear stress at the Critical Section
Of 1.5d

12. Maximum Bending Moment