Question

Ningbo University of Technology test papers VII. Construct the influence line for the bending moment on section C of the following beam due to unit load transmitted via panel points by using tae method. (15 points) P=1 A B C 2m 2m

Answer 1

| KN Klm Im- 2m 2m Influona Line Oraon tor Bending moment ecthon Ordinate of ILD for beam Unit lad at any paint Calaated em TLD Rea chon at raqwitd Section 1 Ordinate al 6-666 opply Unit lood at A 0.333 Ordinate at A- BM at c ILO foy Bm at C Oridimde at C apply onit land at c Ordinate at c = Bmatc 1(D(5) 6 0.8333 Ordinat at D Cont bed af o OTdinate at 0 Bmal Lim 0.666 Ondinate at E' (unit faad at E) 3m 2n im Drinate at E g1) 6 2 0.333 Ordinat at B fonit lood at 8 1KN Oridinabe at B - Bmatc