受力分析习题课
受 力 分 析 习 题 课
画出各构件的受力图 F B A B R 0 F F A D 0 D U B A, D B eA B R
画出各构件的受力图 ·o 2. 1. A B A B A D B D α A B α O A B F F F F A D B α F F ND NB XA YA RA NB XA YA ND RA
3 R F F FA R R R F F F R
3. C B A C A C A B F C F F F RC RB RC′ RC′ XA YA RA RC 4. F B C AC B A C B A · O C B A N A R C C A B F XC YC F F NA NA
B cy R
B A B C D E D 5. B C A D E F F RB RA RB′ XC YC ND ND′ RE B C D R B′ R C N D′
6 B B A B D R D R B B D A R B B B P
6. B A D CB B B D A C T1 B DA C P P P T2 T2′ RD RC RD XB YB XA YA XA YA XB YB RC′ XB′ YB′ XB′ YB′ T1
q m BITIN D B F m D C F D
q D m B C A 7. D C q m FD FCy FCx C A B FCy ´ FCx ´ FB FAy FAx q
8.B B A FA→FA 42 A 9 A1 B Al B A 12 Ax3 A F FT A Ay3 3 TI
9. 8. C A A A B FA1 FA1 ´ FA2 FA2 ´ F BC A F A BC G A A C F C FA1 F B A B FA2 FAy3 FAx3 FT2 FT1 A FA1 ´ FA2 ´ FAy3 ´ FAx3 ´ F C F B
10 F D E E G A B B B F D E FE D D F C Ax
10. G B C D E A F D E F D F E B C F E ´ · O F B F C GC F FCy FCxC A FCy FCx F D ´ FAy FAx C F C ´ FCy ´ FCx ´ FCy FCx
作业:1-3、1-4
作业：1-3、1-4