Question

a. Compare the suitability of the solid rectangular and hollow square columns to support a compressive load.

Comment on two of their key geometrical design aspects.

Answer 1

Sqaure hollow sections, have excellent properties in comparison to the solid rectangular section for use in compression like resisting static loads, not only with regard to buckling, bi-axial bending and torsion, but also in the overall design of members.

They can offer economic advantages in comparison with soild rectangular sections.

hollow square sections in compression structures became widespread due to its numerous advantages such as light weight, high strength, large energy absorption capacity, high
torsional rigidity, and adequate ductility to certain extents.

● Moment of inertia is most important design aspect of compression member which is less in the hallow square section than in solid rectangular section.

● Weight is also depends on geometry and a prime factor in design of compression member so according to weight HSS is more preferable than solid rectangular.

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