1127x
003050
2019-05-07

Question

The RX‑TIMBER add-on module has the "Edge Beam" feature. What exactly does this option do?


Answer:
This option allows you to determine whether to design an edge beam or an inner beam arranged between the individual spans. The load application differs as follows:

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

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

a is the beam or rafter spacing
ü is the roof overhang on the gable
k is the load factor for the effect of continuity
pk' is the surface load in kN/m²

The application area is shown in Image 02.