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SEMINAR ON FOOTING.

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Presentation on theme: "SEMINAR ON FOOTING."— Presentation transcript:

1 SEMINAR ON FOOTING

2 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.

3 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

4 TYPES OF SHALLOW FOUNDATION
Spread Footing Combined Footing Cantilever or Strap Footing Grillage Footing Raft or Mat Footing

5 SPREAD FOOTING

6 RECTANGULAR SPREAD FOOTING

7 ISOLATED SPREAD FOOTING
PITEXCAVATION STIRRUPS COLUMN ISOLATED FOOTING

8 COMBINED FOOTING STRAP FOOTING

9 GRILLAGE FOOTING RAFT FOOTING

10 TYPES OF DEEP FOUNDATION
Pile foundation Well foundation

11 PILE FOUNDATION WELL FOUNDATION

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13 Critical s/c for one way & two way shear

14 Critical s/c for bending moment

15 DEFLECTED SHAPE

16 Load distribution Under earthquake effect Without earthquake effect

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23 THANK YOU


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