Question

A point load applied at shear center induces

• A. Zero shear force
• B. Zero bending
• C. Pure twisting
• D. Pure bending

Hint:

The shear center is the point where a load application causes no twisting, resulting in pure bending.

Answer 1

The Correct Option is D

Step 1: Understanding Shear Center and Bending.
When a point load is applied at the shear center of a beam, it causes pure bending without inducing any twisting or shear forces. The shear center is the point at which the application of a load does not cause any twisting moment, only a bending moment.
Step 2: Conclusion.
Thus, the correct answer is pure bending, making option (4) the correct answer.

Final Answer: \[ \boxed{4. \, \text{Pure bending}} \]