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FAQ 002603 EN-US 03/06/2019

Wieland Götzler Add-on Modules STEEL EC3 RF-STEEL EC3

What is the difference between L_W and L_T in the mask 1.5 Effective Lengths - Bars or 1.6 Effective Lengths - Sets of Bars?

Answer

The length L_T the buckling length for drill buckling and bending buckling under planned centric pressure. The length L_T works analogously to the columns D and G. It is calculated a Drillknick and bending torsional buckling load for the design of a pure compressive force according to paragraph 6.3.1.4 EN 1993-1-1.

In contrast, the length L_W is not a buckling length, but it is the length to which the torque and shear force curves are related with the boundary conditions k_z and k_w (gaps J and K) and the lateral intermediate bearings. This length should usually not be changed.

Keywords

Effective lengths buckling lengths torsional buckling steel construction stability stability rating LW LT Eurocode 3 EC3

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RSTAB Steel and Aluminum Structures
STEEL EC3 8.xx

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Design of steel members according to Eurocode 3

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RF-STEEL EC3 5.xx

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Design of steel members according to Eurocode 3

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