Drainage

Drainage

Where gusset plates are used, generously cropped comers provide for free drainage. When cropping gusset plates is not possible, holes at least 1/2" (13 mm) in diameter must be placed in me plates as close to me comers as possible.

To ensure unimpeded flow of solutions, all stiffeners, gussets and bracing should be cropped a minimum of 3/4" (19 mm). Provide holes at least 1/2" (13 mm) in diameter in end-plates on rolled steel shapes to allow molten zinc access

during immersion in the galvanizing bath and drainage during withdrawal.

Alternatively, holes at least 1/2" (13 mm) in diameter can be placed in the web within 1/4" (6 mm) of the end-plate. To facilitate drainage, end-plates should have holes placed as close to interior comers as possible.

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Pacific Galvanizing