Question:
The profile of the pre-stressing steel in pre-stressed concrete member follows
The profile of the pre-stressing steel in pre-stressed concrete member follows
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Remember:
\[
\boxed{
\text{Prestressing tendon profile}
\longrightarrow
\text{Bending Moment Diagram}
}
\]
The tendon is placed where it most effectively resists flexural stresses.
Updated On: Jul 24, 2026
- Axial force diagram
- Shear force diagram
- Bending moment diagram
- Torsional moment diagram
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The Correct Option is C
Solution and Explanation
Concept:
The tendon profile in a prestressed concrete member is selected so that the prestressing force counteracts the bending moments produced by external loads.
Therefore, the tendon is curved in such a way that its eccentricity varies according to the bending moment along the member.
\[
\boxed{
e \propto M
}
\]
where
\[
e=\text{Eccentricity of tendon},
\]
\[
M=\text{Bending moment}.
\]
Step 1: Understand tendon profiling. The tendon is placed with greater eccentricity where bending moments are larger and with smaller eccentricity where moments are lower. This improves structural efficiency.
Step 2: Identify the corresponding diagram. Since tendon eccentricity follows the variation of bending moment, \[ \boxed{\text{The tendon profile follows the bending moment diagram}.} \] Therefore, the correct option is \[ \boxed{(C)\;\text{Bending moment diagram}.} \]
Step 1: Understand tendon profiling. The tendon is placed with greater eccentricity where bending moments are larger and with smaller eccentricity where moments are lower. This improves structural efficiency.
Step 2: Identify the corresponding diagram. Since tendon eccentricity follows the variation of bending moment, \[ \boxed{\text{The tendon profile follows the bending moment diagram}.} \] Therefore, the correct option is \[ \boxed{(C)\;\text{Bending moment diagram}.} \]
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