2016/4/6 6.2 variation in response function with position of load:influence line (影响线) I kip 1 kip movement - A 凡B L RA RB Ro=4 (a) (c) 1 kip I kip B ↑ R=I RB=0 RA Ri= (b) (d0 6.2 continued 1 kip B ↑ 2 R=0 RB=1 4 (e) Rg(kips) 3-4 1-2 (g) 0 Ra(kips) n @月冷大学 目土本工程季悦 22016/4/6 2 3 6.2 variation in response function with position of load: influence line（影响线） 4 6.2 continued