等邊角鋼截面已知形心為C,對(duì)y軸的慣性矩Iy=3175cm4,Imax=5045cm4,(圖5-5-11),則Imin等于:()
A.560cm4 B.935cm4 C.1305cm4 D.1870cm4
已知圖5-5-10所示矩形截面中Iz1及b,h,要求Iz2?,F(xiàn)有四種答案,試判斷哪一種是正確的?()
A.A B.B C.C D.D
圖5-5-9所示任意截面已知面積為A,形心為C,對(duì)z軸的慣性矩為I,則截面對(duì)z1軸的慣性矩Iz1為:()