A.<img src="https://cg-service.oss-cn-shanghai.aliyuncs.com/20240111/170495982829680.png">
B.<img src="https://cg-service.oss-cn-shanghai.aliyuncs.com/20240111/1704959828336637.png">
C.<img src="https://cg-service.oss-cn-shanghai.aliyuncs.com/20240111/1704959828390326.png">
D.<img src="https://cg-service.oss-cn-shanghai.aliyuncs.com/20240111/170495982844964.png">
A.πd²/4
B.πd⁴/32
C.πd³/16
D.πd⁴/64
A.组合截面的惯性矩等于各部分惯性矩之和
B.组合截面的惯性矩需要考虑质心距的平方
C.组合截面的惯性矩使用平行轴定理进行计算
D.组合截面的惯性矩与槽钢之间的距离有关
A.I_z=I_a+I_b
B.I_z=I_a+I_b+2A(h/2)^2
C.I_z=I_a+I_b+Ah^2
D.I_z=I_a+I_b+2Ah^2
A.高度为300mm
B.宽度为300mm
C.宽度为150mm
D.高度为150mm
A.<img src="https://cg-service.oss-cn-shanghai.aliyuncs.com/20240111/1704959825603475.png">
B.<img src="https://cg-service.oss-cn-shanghai.aliyuncs.com/20240111/1704959825637757.png">
C.<img src="https://cg-service.oss-cn-shanghai.aliyuncs.com/20240111/1704959825692967.png">
D.<img src="https://cg-service.oss-cn-shanghai.aliyuncs.com/20240111/1704959825715685.png">
A.Ix=(1/3)*b*h^3
B.Ix=(1/12)*b*h^3
C.Ix=(1/6)*b*h^3
D.Ix=(1/24)*b*h^3
A.2.25×10^8mm^4
B.1.35×10^8mm^4
C.6.75×10^8mm^4
D.4.05×10^8mm^4
A.1.7835×108mm²
B.1.6345×108mm²
C.1.9933×108mm²
D.1.8537×108mm²
