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of /home/abouaayt/public_html/aboutcivil/answers/qa-plugin/user-management/layer.php problem #380 from strength of materials by andrew pytel & F L.singer - Civil Engineering Technical Questions Answers - Ask a Civil Engineer
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A reinforced concrete beam d=18 in,and n=10. find the dimensions b and A, that will resist a bending moment of 60 kip.ft with balanced stress reinforcement if fc=1600 psi and fs=20ksi.
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