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The RX-TIMBER module contains the function called "Boundary Beam". What exactly does this option do?

Answer

By means of this option, it can be determined whether a boundary beam shall be designed or an inner beam that is arranged between the individual panels. The design load differs as follows:


Inner beam:
${\mathrm q}_{\mathrm k}\;=\;{\mathrm q}_{\mathrm k'}\;\cdot\;\mathrm a\;\cdot\;\mathrm k$

Boundary beam:
${\mathrm q}_{\mathrm k}\;=\;{\mathrm q}_{\mathrm k'}\;\cdot\;\left(\frac{\mathrm a}2\;+\;\mathrm ü\right)\;\cdot\;\mathrm k$

a = beam or rafter spacing
ü = roof overhang at the gable
k = load factor for continuous effect
pk' = surface load in kN/m²

The application area is shown in Figure 02.

Keywords

Load application Load application area Boundary beam Inner beam Roof overhang

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