Maximum Permissible Slenderness Ratio of a Member Carrying Loads Resulting from Wind

Slenderness ratio is a dimensionless quantity used in structural engineering to determine the effectiveness of a column or beam in resisting buckling under load. It is defined as the ratio of the effective length of the member to its least radius of gyration.

The maximum permissible slenderness ratio of a member carrying loads resulting from wind depends on several factors, including the material properties of the member, the cross-sectional shape of the member, and the magnitude and direction of the wind loads.

For steel members, the American Institute of Steel Construction (AISC) specifies a maximum slenderness ratio for compression members based on the member's end conditions, as follows:

- Pinned-Pinned: 250
- Fixed-Fixed: 200
- Pinned-Fixed: 180
- Fixed-Free: 350

For concrete members, the maximum slenderness ratio is typically limited to 30-50, depending on the design code and the type of member.

In the case of members carrying loads resulting from wind, the maximum permissible slenderness ratio is typically lower than for members carrying gravity loads, due to the lateral instability induced by wind loads.

Therefore, the correct answer to the question is option C, 250, which represents the maximum slenderness ratio for pinned-pinned steel compression members carrying loads resulting from wind.