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6.3.2.2 Lateral Torsional Buckling Curves - General Case
(1) Unless otherwise specified, see 6.3.2.3, for bending members of constant cross-section, the value of
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| body | --uriencoded--$$ \normalsize \chi_%7BLT%7D $$ |
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for the appropriate non-dimensional slenderness | Mathinline |
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| body | --uriencoded--$$ \normalsize \overline %7B\lambda%7D _%7BLT%7D $$ |
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, should be determined from:| Mathinline |
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| body | --uriencoded--$$ \normalsize \chi_%7BLT%7D = \frac %7B1%7D%7B \Phi_%7BLT%7D + \sqrt %7B\Phi_%7BLT%7D%5e2 - \overline%7B\lambda%7D%5e2_%7BLT%7D %7D %7D & \quad \text%7Bbut%7D & \quad \chi_%7BLT%7D \leq 1,0 & \qquad \qquad \qquad \qquad \qquad \qquad \qquad \qquad (6.56) $$ |
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where
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| body | --uriencoded--$$ \normalsize \Phi_%7BLT%7D = 0,5 \lfloor 1 + \alpha_%7BLT%7D ( \overline%7B\lambda%7D_%7BLT%7D - 0,2) + \overline%7B\lambda%7D%5e2_%7BLT%7D \rfloor $$ |
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| body | --uriencoded--$$ \normalsize \alpha_%7BLT%7D $$ |
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is an imperfection factor| Mathinline |
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| body | --uriencoded--$$ \normalsize \overline%7B\lambda%7D_%7BLT%7D = \sqrt \frac%7BW_yf_y%7D%7BM_%7Bcr%7D%7D $$ |
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