471_Mechanics SolutionInstructors_Sol.Manual-Mechanics_Materials_7e.book_Gere_light.1

# 471_Mechanics SolutionInstructors_Sol.Manual-Mechanics_Materials_7e.book_Gere_light.1

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SECTION 5.10 Shear Stresses in Beams with Flanges 465 Solution 5.10-13 T-beam L OCATION OF NEUTRAL AXIS c 2 h c c 2 5.623 in. c 1 c c 1 1.377 in. c 1.377 in. c b 1 h h 1 2 a h h 1 2 b + t h 1 a h h 1 2 b b 1 h h 1 2 + t h 1 V 5300 lb t f 0.8 in. t f h h 1 t 0.5 in. b 10 in. h 1 6.2 in. h 7 in. M OMENT OF INERTIA ABOUT THE - AXIS F IRST MOMENT OF AREA ABOVE THE AXIS ; t max VQ It t max 2221 psi Q tc 2 c 2 2 z I I web + I flange I 37.726 in. 4 I flange 8.07 in. 4 I flange 1 12 bt f 3 + bt f a c 1 t f 2 b 2 I web 29.656 in. 4 I web 1 3 t c 2 3 + 1 3 t 1 c 1 t f 2 3 z M OMENT OF INERTIA ABOUT THE - AXIS I flange 1 12 b t f 3 + b t f a c 1 t f 2 b 2 I web 5.287 * 10 7 mm 4 I web 1 3 t c 2 3 + 1 3 t 1 c 1 t f 2 3 z F IRST MOMENT OF AREA ABOVE THE
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