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Header width/thickness, body height/thickness and diameter/thickness ratios of beams, columns and braces are controlled according to the relevant limit value given in Table 9.3 (Article 9.7.1.1).
Required strengths for dimensioning beams and columns The excess strength coefficient given in 9.2.6 is found from load combinations containing the increased earthquake effect with D (Item 9.7.2).
The slenderness ratio of the braces (bar buckling length/radius of inertia) is checked (see 9.7.3.1).
The required strengths for dimensioning the braces are found from the load combinations including the earthquake effect given in Article 9.2.5 (Item 9.7.3.3).
For V or inverted V shaped brace systems , the additional conditions given in 9.7.4.1 are not currently considered.
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