With the use of diagrams, describe the slenderness ratio and the effective length of a column. Give references where necessary, especially in the use of illustrations and diagrams.

You are working as a trainee civil engineer on the design and construction of a 3-storey office building. You have been tasked with producing a structural report on the performance of steel and reinforced concrete columns in the proposed structure. The report will explore the use of another construction material in place of steel and/or reinforced concrete. You are to complete and present the report by providing evidence to the following tasks:

TASK 1

With the use of diagrams, describe the slenderness ratio and the effective length of a column. Give references where necessary, especially in the use of illustrations and diagrams

Determine whether the reinforced concrete column cross-section shown below would be suitable to resist an axial load of 1750kN. Assume that the design compressive strengths of the concrete 20N/mm2 and steel reinforcement are 375 N/mm2 respectively.

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