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Precast Ground Beams

Precast Ground Beams

Precast Ground Beams

(OP)
I was looking at an engineers design (UK) for precast ground beams supported on small poured insitu pilecaps. When the beams are placed the joints are poured.

Some of the beams had 3No. 32mm bars in the bottom (3 No. 12mm bars top)(straight) and they had approx. 150mm bearing on the edge of the pilecap. To anchor / tie the beams at the support was a single 12mm U bar.

Designing insitu foundations I would carry min. 50% of bottom steel to a min length of 12 Dia. passed the centre line of the support (centre of cap).

Is this precast system OK without either U or L bars at the end of the precast beams and only 1 No. 12mm U bar across the centre of the cap?

RE: Precast Ground Beams

(OP)
Could anyone provide input on this??

RE: Precast Ground Beams

The development length is not sufficient by ACI, but different codes give different minimums.

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