3.) A viewing platform in a wild-animal park is supported by a row of aluminum pipe columns having length L = 3.25 m and outer diameter d = 100 mm. The bases of the columns are set in concrete footings and the tops of the columns are supported laterally (no deflection, but rotation is permitted) by the platform. The columns are being designed to support compressive loads P= 100 kN. Determine the minimum required wall thickness t of the columns if a factor of safety n = 3 is required with respect to theoretical Euler buckling load. What is the level of axial compressive stress in the column at the working load? Comment (For the aluminum, use 72 GPa for the modulus of elasticity and 480 MPa for the yield strength.) (b) L (a)

3.) A viewing platform in a wild-animal park is supported by a row of aluminum pipe columns having length L = 3.25 m and outer diameter d = 100 mm. The bases of the columns are set in concrete footings and the tops of the columns are supported laterally (no deflection, but rotation is permitted) by the platform. The columns are being designed to support compressive loads P= 100 kN. Determine the minimum required wall thickness t of the columns if a factor of safety n = 3 is required with respect to theoretical Euler buckling load. What is the level of axial compressive stress in the column at the working load? Comment (For the aluminum, use 72 GPa for the modulus of elasticity and 480 MPa for the yield strength.) (b) L (a)

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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