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Rebar choice of column and beam

 
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Rifat
SEFI Regulars
SEFI Regulars


Joined: 26 Mar 2016
Posts: 22

PostPosted: Sat Aug 12, 2017 11:55 pm    Post subject: Rebar choice of column and beam Reply with quote

Hi sefians,
Is there any problem if we choose larger bar diameter in beam and smaller bar diameter in column?Please experts ansewer with detail.
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Zia
SEFI Regulars
SEFI Regulars


Joined: 28 May 2015
Posts: 32

PostPosted: Wed Aug 16, 2017 7:23 am    Post subject: Reply with quote

Smaller bar diameter has less stress demand than larger diameter.

-     Requires less bond length.
-     Allowable permissible stresses are higher under serviceable loading.      Therefore better crack control.

Regards,
Zia
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spsvasan
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Joined: 18 Dec 2008
Posts: 287

PostPosted: Wed Aug 16, 2017 1:22 pm    Post subject: Re: Rebar choice of column and beam Reply with quote

Dear Er.Rifat

Many structures have been built with smaller dia column bars and larger dia beam bars.

I only hope that the smaller column bar diameter is not due to neglecting bending moments in columns and designing only for axial forces

S.P.Srinivasan

Rifat wrote:
Hi sefians,
Is there any problem if we choose larger bar diameter in beam and smaller bar diameter in column?Please experts ansewer with detail.
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