Punching - high aspect ratio columns

MagmaWorks / SCaFFOLD

Calculations ecosystem

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Punching - high aspect ratio columns #40

Closed mikegatt closed 4 years ago

mikegatt commented 4 years ago

I've read up on some technical advice in TR64 regarding high aspect ratio columns in flat slabs. The recommendation on page 51 seems to be to take the maximum column dimension in the perimeter calculation as 3d.

This seems to limit u1/u1* and the value of beta to take in calculation. This seems to be a good way to resolve the issue we were encountering with very high values of beta making longer columns worse than shorter columns for punching shear

AlBal2 commented 4 years ago

Yes, that would limit u1/u1* and prevent the beta value running away for long columns. I'll update the calc to suit.

AlBal2 commented 4 years ago

Implemented and deployed 14/4/2020 (in v 0.4.5)