Which of the following cases must consider bending shear stress?
A: The span of the beam is large（l / h >; 5）
B: A large load is applied near the support
C: When the bending moment is negative
A: The span of the beam is large（l / h >; 5）
B: A large load is applied near the support
C: When the bending moment is negative
举一反三
- When a column is subjected to an eccentric load, the stress induced in the column will be ( ) A: direct stress only B: bending stress only C: shear stress only D: direct and bending stress both
- When calculating the displacement of composite structure: A: Only bending moment is considered B: Only axial force is considered C: Bending moment and shear force are considered D: Bending moment and axial force are considered
- In order to improve the bending rigidity of the beam, it can be realized by (). A: Choose high-quality materials B: Reasonably arrange the beam support to reduce the span length of the beam C: Reduce the load acting on the beam D: Choose a reasonable cross-sectional shape
- If the beam is subjected to a bending moment of M = 15 kN.m, the maximum bending stress inthe beam is ( ). [img=443x401]1803275dfac22cc.jpg[/img] A: 5.88 MPa B: 3.92 MPa C: 1.96 MPa D: 7.84
- If the beam is subjected to a bending moment of M = 16 kN.m, the maximum bending stress inthe beam is ( ). [img=758x530]17de83378488e00.jpg[/img] A: 48.6 MPa B: 74.5 MPa C: 59.6 MPa D: 85.4 MPa