#### Further Information

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• ### I would like to use the CRANEWAY add-on module to design a suspension crane. Where are the design points 0, 1, and 2 for the stress analysis on the bottom flange and for the fatigue design?

The design points in CRANEWAY have been adopted in compliance with the standard. In this case, the stresses are calculated for the following locations:

• Design Point 0

A periphery of the flange at the web edge or at the fillet start

• Design Point 1

A flange at load application point (this can be checked as wheel spacing in Window 1.4)

• Design Point 2

The flange edge
These points are not displayed in the resulting cross-section graphic in the CRANEWAY program. However, there is always a stress point at the design points 0 and 2 for which the result values can be directly displayed.
• ### How is it possible to consider edge lamellas of a glued-laminated beam?

In the main program RFEM/RSTAB, it is first necessary to rotate the member about 90° so that the lamellas of the glued-laminated beam are lying edgewise, see Figure 01.

In order to also consider the on-edge position of the beam for the design in the RF‑/TIMBER Pro add-on module, increase the resistance for edgewise bending under National Annex Settins in the "Other Settings 2/2" tab, see Figure 02.

• ### What does "Mortar Joint" mean if using "Masonry" as a material with the standard EN 1996‑1‑1?

A mortar joint is available when the bricks of a wall are not laid on one but on two mortar strips. In this case, the mortar has to be applied to the outer edges of the support surfaces of the bricks. By using a mortar joint, it is necessary to take into account the restrictions in the ultimate limit state as the unfavorable stress diagrams occur in the wall.

Whether to apply the mortar joint in a European country is governed by the respective National Annex. The German National Annex does not alllow to use the mortar joint for the masonry construction. Therefore, in Germany, bed joints must always be mortared over the entire surface.

• ### Why do I obtain such high contact stresses at the foundation edges of my floor slab?

Depending on how solid is the foundation body, the soil contact stress distribution under this structural component changes as well. In the case of elastic foundation bodies that are loaded by a uniform surface load, it is generally assumed that the distribution of soil pressure is a mirror image of the load. The plate forms a subsidence basin. However, the more rigid the plate is, the more the soil contact stress rises towards the edge (theoretically limitless).

These theoretically infinite stresses cannot be absorbed by the soil, of course. The soil would probably deflect laterally at the edge and the stress would migrate inwards from the edge.
• ### For a cross-section from the cross-section library of RFEM/RSTAB, the stresses calculated with RF‑/STEEL differ from the stresses of the same cross-section calculated with SHAPE‑THIN. What is the reason?

In RF‑/STEEL, the stresses are calculated on stress points of a cross-section. The stress points defined for the cross-section can be displayed in the details of the cross-section. For the cross-section shown in Figure 01, the stress points are defined along the cross-section. Thus, the stress points (here, Stress Points 1 and Stress Point 9) are also available in the roundings.
In SHAPE‑THIN, you can only calculate the stresses on elements. It is not possible to calculate the stresses on the point elements that are used to model irregularities in the cross-section geometry, such as roundings and so on. The stress points of the SHAPE‑THIN cross-section are displayed in Figure 02. In the case of the cross-sections with point elements, minor deviations in stresses may thus occur due to the different stress points.
Furthermore, SHAPE‑THIN provides the option to calculate the stresses for the most unfavorable element edges or for element center lines only. In RF‑STEEL, the stresses are calculated exclusively on the stress points.
• ### In the RX-TIMBER module, there is the "Edge Beam" feature. What exactly does this option do?

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 Figure 02.

• ### How do I disable a softlock?

002849

Please disable a softlock as follows:

2. Unpack the ZIP archive on the PC with the active softlock
3. Start the tool by double-clicking on "DeactivateLicense.exe".
4. Select the softlock to be deactivated and press "Deactivate"
5. Send us the *. * Ack file created after deactivation.

If not, contact us via our free e-mail, chat, or forum support, or send us your question via the online form.

#### First Steps

We provide hints and tips to help you get started with the main programs RFEM and RSTAB.

#### Wind Simulation & Wind Load Generation

With the stand-alone program RWIND Simulation, wind flows around simple or complex structures can be simulated by means of a digital wind tunnel.

The generated wind loads acting on these objects can be imported to RFEM or RSTAB.

#### Your support is by far the best

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