Which design concept for prestressed steel?

AS/NZS 1576.1:2019 Scaffolding. Part 1: General requirements

Member imperfections [using buckling curves which allow for second-order effects]

AS/NZS 1576.1:2010 Scaffolding. Part 1: General requirements

AS/NZS 3750.9:2009 Paints for steel structures. Part 9: Organic zinc-rich primer

Every which way [Crystals at CityCenter, Las Vegas with 19-section roof]

AS/NZS 3750.6:2009 Paints for steel structures. Part 6: Full gloss polyurethane (two-pack)

AS/NZS 3750.11:2009 Paints for steel structures. Part 11: Chlorinated rubber - High-build and gloss

Which method of tightening?

Tension or torque - which is more important?