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Reinforced Concrete 1 -25 <br />CHART 1.1 <br />DESIGN OF RECTANGULAR BEAMS WITH <br />TENSION REINFORCEMENT (p < 0.75pb) <br />fc, = 3,000 pci fy = 40,000 psi <br />M7:-F�l <br />p d <br />3000 L� u• LAs`pod <br />b4 <br />2000 b Mu d P <br />60 KEY <br />50 <br />1000 <br />40 40 zoo <br />� <br />500 <br />30 a <br />Y <br />300 <br />1- <br />LL <br />✓ <br />20 <br />200 <br />f <br />Z <br />15 w <br />100 <br />= <br />f <br />0 <br />� <br />;�10 <br />� 0 <br />50 <br />9 <br />a <br />Lu <br />t <br />a <br />30 <br />In <br />7 LL <br />20� <br />6 <br />5 <br />10 <br />4 <br />Pmin` <br />ty <br />30 0005 <br />_ <br />0.006 <br />Z <br />0007 <br />140 <br />0 <br />20 0008 <br />Q <br />� 0009 <br />r 0.010 <br />a <br />0 <br />Iz <br />w if <br />a <br />018 <br />1 <br />OY <br />0015 <br />/uj <br />Z 05Po9 <br />0020 <br />00278 <br />6 <br />Pma� 0.75PD <br />5 pD = 00371 <br />\� <br />4 <br />STRUCTURAL AND CONSTRUCTION D[SIGN MANUAL <br />8 1� <br />