Question

Which material property is most important for the web of a Wagner Beam?

• A. High compressive strength
• B. Extremely high thickness
• C. High tensile strength
• D. Low elasticity

Hint:

In a Wagner Beam, \[ \boxed{ \text{Web} \Longrightarrow \text{Tension Field Action} } \] Therefore, the web material should possess \[ \boxed{\text{high tensile strength}.} \]

Answer 1

The Correct Option is C

Step 1: Recall the Wagner Beam concept. A Wagner Beam is a tension-field beam in which the web carries shear primarily through tensile stresses after buckling.

Step 2: Identify the required material property. Since the web resists loads mainly by developing tension, \[ \boxed{ \text{High tensile strength} } \] is the most important material property. Therefore, \[ \boxed{\text{High tensile strength}} \] is the correct answer. Thus, \[ \boxed{(C)} \] is the correct answer.