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: Shear Center and Bending Explained.
Applying a point load at a beam's shear center results in pure bending, avoiding twisting or shear. The shear center is where a load creates only a bending moment, not a twisting one.
Step 2: Answer.
Therefore, the answer is pure bending, making option (4) the correct choice.

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