Design Calculation of Pile Cap

Pile Cap Designs Calculation
Pile Cap Designs Calculation

Pile Cap of Two Piles:

Here, Pile value of 18 in diameter, 55 ft long, pile load is 80 kips, and 105 kips on column.
                                                                                               
Plan of Pile Cap
Plan of Pile Cap



  • Step 1: Moment


          Load on each pile = 105/2 =52.5 kips

          M = 52.5 × (2.25-.5) = 92 


  • Step 2: Depth


       
Punching Shear



  • Step 3: Steel

Area of Steel



  • Step 4: Shear


Shear Spacing


Provide, ΓΈ 10 mm @ 6.5 in c/c


Section of Pile Cap
Section of Pile Cap
Main bar (Bottom) marked (a) 7 - 20 mm dia
Stirrup bar marked (b) 10 mm dia (2-leg) @ 6.5" c/c.
Top bar marked (c) 6 - 12 mm dia.



Pile Cap of Three Piles:

Here, Pile value of 18 in diameter, 55 ft long, pile load is 80 kips and 220 kips on column.

Pile Cap of Three Piles
Pile Cap of Three Piles



  • Step 1: Moment

          Load on each pile = 74 kips

          M = 74× (1.9167’) = 142 


  • Step 2: Depth


Depth of Pile Cap


  • Step 3: Steel

steel area of pile cap



  • Step 4: Shear

Designs calculation of pile

Plan of Pile Cap
Plan of Pile Cap

Section of Pile Cap
Section of Pile Cap

Mail bar (Bottom) marked (a) 8 - 20 mm diameter
Top bar marked (b) 1 -12 mm diameter at each corner
Stirrup bar marked (c) 10 mm diameter @ 6" c/c.


Share your friend to know about this pile and pile cap design calculation. For any information, please comment below.

Post a Comment

0 Comments