JavaScript must be enabled in order to use this site.Please enable JavaScript in your browser and refresh the page. CRACKING LOAD, AT 0.4L Cracking section is at 0.4L. Net stress at 0.4L is: (Art. 9.16.2) f r = − 7.5 f ` c = − 7.5 6000 = − 581 p s i Art. 9.15.2.3 M c r = ( 581 p s i + 3159 p s i ) ( 20143 i n 3 ) ( k − f t 12000 l b − i n ) − ( 1267.0 + 285.5 + 1382.7 ) k − f t ( 20143 i n 3 14915 i n 3 − 1 ) = 5250.0 k − f t R a t i o n = M u M c r = 9347.3 k − f t 5250.0 k − f t = 1.78 > 1.2 Parent topic: Tutorial 1: Continuous 3-Span 72 Inch Bulb Tee Girder Design (U.S. Units) (LFD)
