2、based on the relationships between loads, shear forces, and bending moments introduced in the video, which one of the choices listed below corresponds to the correct shear force and bending moment diagrams for the following beam?
矩形截面悬臂梁如图所示,已知l=4 m, b / h =2/3,q=10 kn/m,[s]=10 mpa,则此梁横截面的宽度b必须满足_________。
the application of a concentrated force to any point on the axis of a beam leads to an abrupt change in the rate of change of the bending moment at that same point.
9、下图杆中,ab段为钢,bd段为铝。在p力作用下 。
please translate the following english sentence into chinese. pay attention to the word in red. we will die before we give in.