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The Steel Workshop S16-2009: What's New? - CISC-ICCA

The Steel Workshop S16-2009: What's New? - CISC-ICCA

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Clause 27 Seismic design27.5 Type MD (moderately ductile) concentrically bracedframes, R d = 3.0, R o = 1.3Brace slenderness for certain seismic cases is limited to 70 forHSS rather than the 200 for other members27.5.6 Protected zonesfull brace lengthelements that connect braces to beams and columns<strong>S16</strong> -<strong>2009</strong>What’s <strong>New</strong>?

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