Pilecap (self-weight)

= 0.8 x 25

= 20 kN/m2

Ultimate pilecap load

= 1.35 x 20 Design

Deep beams under a concentrated load may be designed using a strut and tie model.

Use a model with a node at the centre of the loaded area and lower nodes BS 8110 over the centre lines of the piles at the level of the tension reinforcement together with an effective column load to account for the pilecap weight of, for example:

The total tensile force in each direction

2850 x 1350

WSd x L

4 x 675

For reinforcement yd yk

0 0

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