SEMINAR ON FOOTING
INTRODUCTION TO FOUNDATIONS Function of a foundation is to transfer the structural loads from a building safely into the ground. A larger and heavier building of masonry, steel, or concrete would require its foundations to go deeper into earth such that the soil or the rock on which it is founded is competent to carry its massive loads.
TYPES OF FOUNDATION 1.SHALLOW FOUNDATION Requirements - Suitable soil bearing capacity - Undisturbed soil or engineered fill 2.DEEP FOUNDATION Requirement - Transfer building loads deep into the earth
TYPES OF SHALLOW FOUNDATION Spread Footing Combined Footing Cantilever or Strap Footing Grillage Footing Raft or Mat Footing
SPREAD FOOTING
RECTANGULAR SPREAD FOOTING
ISOLATED SPREAD FOOTING PITEXCAVATION STIRRUPS COLUMN ISOLATED FOOTING
COMBINED FOOTING STRAP FOOTING
GRILLAGE FOOTING RAFT FOOTING
TYPES OF DEEP FOUNDATION Pile foundation Well foundation
PILE FOUNDATION WELL FOUNDATION
Critical s/c for one way & two way shear
Critical s/c for bending moment
DEFLECTED SHAPE
Load distribution Under earthquake effect Without earthquake effect
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