Question: A frame subjected to a point load P is shown in the figure below. The dimensions and the material properties of the elements have been

A frame subjected to a point load P is shown in the figure below. The dimensions and the material properties of the elements have been defined in the figure.

(

)

Present the analytical model and identify the number of degrees of freedom of the structure for buckling analysis.

(

)

Determine all the element stiffness matrices and the system stiffness matrix for buckling analysis.

(

)

Calculate the buckling loads.

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)

Determine and sketch the buckling modes for the frame.

A frame subjected to a point load P is shown in

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