Simone
.一、取整体为受力分析对象，取sin45≈0.7：
. ΣMe =0，即：Fax.3-Fay.6+10(3)+10(3x0.7)+90 =0,
. 简化得银拆：Fax =2Fay -47, ...①,
.二、取ABC为受力分析对象，C铰接，不传递90KNm力偶，
. ΣMc =0，即：Fax.6-Fay.3+10(3x0.7) =0,
. 简化得：2Fax -Fay +7=0 ,...②,
. 将①代入②得：Fay =29 (KN) ( ↑ ),
. 将计得的Fay=29KN代入①得：Fax =11(KN) (→),
. ΣFx =0, 即：Fax -10 +10(0.7)+Fcx =0,
. 将计得的Fax=11KN值代入上式得：Fcx = -8(KN) (←),
. ΣFy =0, 即：Fay -10(0.7) +Fcy =0,
. 将计得的Fay=29KN代入上式得：Fcy = -22(KN) ( ↓ ),
.三、再碰搏激取整体为受力分析对象：
. ΣFx =0, 即：Fax -10 +10(0.7)+Fex =0,
. 将计得的Fax=11KN 值代笑袜入上式得：Fex = -8KN (←),
. ΣFy =0, 即：Fay -10(0.7) +Fey =0,
. 将计得的Fay=29KN代入上式得：Fey = -22KN ( ↓ ),
