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4. SHEAR AND MOMENT DIAGRAMS Determine the shear and moment diagrams for the beam shown below. There is a pin at A and a rock
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X y 1000 lbx 1 1125 lb/ft RA A →n n, с D B -82 RAS -83- RB K ** loft 674 loft first lie. we will calculate the reactions onSection AC Take a section X-X at distance ve, from A. Shear force (SF) equafion.- = 055-77 (Constant) (SF) AC RA = (SF)A = 8Section CD Take a section X-X at distance xs from . SF equation- (SF) = RA-1000 [ Constant] (SF) = 055.77-1000 = -144.23 lbSection DB Take a section X-x from Aat distance Xz- Sf equation- (SF) Ra-1000 - 125x (X3-16) [Linear Equation at x= 16,(SF),SFD and BMDI 1000 lb 12516/17 A B C 855.77.66 Sheare force Diagram CSFD) A C D -144-2316 -1394.2316 0557.7.lb-ft Linear 7692-

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