2016/4/6 Method of equilibrium Fp=l F=1 Fp= x F4= M 杯 d15M+δ1p=0 ǒ1=3E7 p=-32-x2) 6EI 1 OIE=x(3P-x2) 1 23 Kinematic method 1MK+61P=0 F。=l M M=器 9 期 FP=1 δ1p=6p1+M=- 1=1 MK=-0p1 @同份大学闺苏2程平院 26 132016/4/6 13 25 Method of equilibrium 26 Kinematic method