Offshore Jacket - Fundamental Period

Fundamental (sway) period of an offshore steel jacket from overall height and mass - determines wave-load dynamic amplification.

JacketPeriodDynamic

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This calculator requires JavaScript to compute its result. The formula, symbols, and regulatory sources are shown in the Formula section below.

Formula, assumptions, and limits

T_1 = 2\pi \sqrt{m/k}

Symbol	Meaning	Unit
$m$	Mass of jacket + topsides	kg
$k$	Lateral stiffness	N/m

Source: API RP 2A-WSD

Fundamental (sway) period of an offshore steel jacket from overall height and mass - determines wave-load dynamic amplification.