圖示剛架,EI=常數,B點的豎向位移(↓)為:()
A.Pl3/6EI B.Pl3/3EI C.Pl3/6EI D.Pl3/3EI
圖示梁EI=常數,B端的轉角是:()
A.5ql3/48EI(順時針) B.5ql3/48EI(逆時針) C.7ql3/48EI(逆時針) D.9ql3/48EI(逆時針)
圖示結構EI=常數,截面C的轉角是:()
A.ql3/8EI(逆時針) B.5ql3/24EI(逆時針) C.ql3/24EI(逆時針) D.ql3/24EI(順時針)