Civil Engineering/cracked section

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Question
sir,
does reinforcing a concrete section induce cracks, forming a cracked section. if yes then why do we provide face bars for cracking as per bs 8110 in a beam.

Answer
Dear Sufiyan

Cracks in concrete removes tension cracked  concrete  part and results in less stiff members and system. Bars are to bear the loadings which are impossible to bear by concrete itself. But reinforcement have usually an effect of force bearing not to prevent the cracking. It limit the cracks width too. The carcks are present in non reinforced or reinforced concrete both.

Regards
BEH

Civil Engineering

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Babak Esmailzadeh Hakimi

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