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AS3600 reinforcement detailing - beam to column connection

AS3600 reinforcement detailing - beam to column connection

AS3600 reinforcement detailing - beam to column connection

(OP)
Dear colleagues,
I have a particular question regarding reinforcement detailing per AS3600. In a non-seismic beam-to-column connection, should a certain percent of the bottom reinforcement in midspan be anchored behind supports or we can use separate column bars and splice them with the bottom bars.
A clarification attempt: say the beam has 4 bars bottom reinforcement in midspan. In our national code it is required that at least two of them (the same bars) are anchored in the supports. On the other hands detailing per other codes allows using separate bars in the column (say U-bars in an end support) which are spliced with beam bars, so that the reinforcement skeleton can be "inserted" between the columns. Is the latter allowed when detailing per AS3600, or a certain percent of bars have to pass behind supports?

Kind regards,
Mike

RE: AS3600 reinforcement detailing - beam to column connection

Mikesq,

I think you are reading something into AS3600 that is not actually there. Where does it require that 50% of the bars at midspan must be continuous into the support without splices?

As long as the correct lap and detailing around the lap is provided, there is no problem with using a separate U bar from the support to lap with the main bottom bars.

RE: AS3600 reinforcement detailing - beam to column connection

(OP)
Thanks for your reply,

It is my bad that I did not clarify that I am not based in Australia, that's why I am not acquainted with the specific detailing practices there :)

Thanks again,
Mike

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