哈工大考研结构力学试题 9).pdf

2003 1X 2O 3X 1D 2C 3C 1F =0M =40 kN.mF =0 2 By C QC l M X 1 1 2 1 l ql 8 M P ∆1P ql δ x +∆ 0 x1 =− 11 1 1P δ 24 11 2 ql 2 / 24 ql / 8 D ql 2 / 24 0 0 d F −F Na P a -FP 2 FP 0 b 0 d FNb 2 FP FP FP 2d 2d 1 1 1 FQ (kN) 3 FN (kN A F B H I C D E 0.25 1 FQB 0.25 A F B H I C D E MF 45 45 A D 90