Question

HW7 80 KN PROBLEM 7.40 30 IN For the beam and loading shown, (a) draw the shear and bending- moment diagrams, (b) determine the maximum absolute values of the shear and bending moment. Fig. P7.40

Answer 1

go KN 3D KNm 3ox2) (6)-Re (s) +80(2) = 0 BX By Re Relo4 kN 3m 2m 2m Bx0 Efyzo: Ret By-80-30x2 = 0 By 36 KN. Seclicn in Ac (o<<2m zMsaction- o; Zeyz0 30-Vo V-30 Me-1S meLS(2)z-60 KN.m Ve 6o kN Section in CD: (2<x<5Sm) 30KNM Zmychon D; m +{30x2)-) -3ox2+1o 4-v2o l04(-2-0 2 m May4148 4y KN Me 60 KN.m Ура чч иN mD 2 KN.m section in D8: (0<al<2m) 220 ZMsection- 0 vt3620 m 36xs o 36 KN V-36KN M36 VB -36 KN mD 36(2)z72 KN.m VD-34 KN

30 KNm 8OKN Ca) 2m 3m 36KN 1очкN Shear Force Diag ram (EN2 чч чч |-36 -36 -60 72 Bendiog morent Diagram (KN.m) (৬) Absoute Max. Sheor 60 KN Ma Max Moment Mma 72 KN.m