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Transfer Deflection Limit - Span/1000 or Span/500

Transfer Deflection Limit - Span/1000 or Span/500

Transfer Deflection Limit - Span/1000 or Span/500

(OP)
What constitutes “provision is made to minimise the effect of deflection of the transfer member on the supported structure” with regards to the following clause in AS3600? -

“For transfer members the total deflection should not exceed span/500 where provision is made to minimise the effect of deflection of the transfer member on the supported structure. Otherwise, span/1000.”

RE: Transfer Deflection Limit - Span/1000 or Span/500

Take into account the effects of the transfer beam deflection on the members being supported by it and detail then to accommodate the support settlements etc.

RE: Transfer Deflection Limit - Span/1000 or Span/500

(OP)
Thanks rapt.

If you have a column on a transfer beam for example, would you be attempting to detail the column to move in accordance with the beam deflection? How would you achieve this? Dowels with a slip joint that’s then grouted up later?

I can imagine resisting the column from moving with the transfer beam would cause cracks and put the column in tension?

RE: Transfer Deflection Limit - Span/1000 or Span/500

I would design the structure above for the differential support settlement experienced by any column that experiences it due to transfer beam deflection.

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