#### Further Information

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• ### Which cross-sections and which cross-sections as reinforcements of a runway girder are allowed for the design in the CRANEWOUNK add-on module?

For rolled cross-sections, you can access the extensive [library] of the I-shaped rolled cross-sections,
which you can access with the corresponding button (see Figure 1). The following cross-sections can be selected, among others: I-section series (I, IPE, IPEa, IPEo, IPEv, HE-B, HE-A, HE-M, HE-AA, etc.)

If there is a Welded cross-section, you can define I-shaped, uniaxially symmetric cross-sections (see Figure 2).

Angle and U cross-sections are possible as additional cross-sections. They can be defined as the cross-sections
Select the beam in the [Library] or use the button to define the beam (see Figure 3).

We already have an interesting webinar about " Design of crane way girders according to Eurocode 3 " on our homepage.
• ### I would like to calculate a hall frame with loads from a crane runway. It is not quite clear for me, what denote the various action categories. Can you explain it to me?

The standard EN 1991-3, Table 2.2., presents load groups 1 to 10. These are equal to the denotation of the classes in our software.

The integration in Categories A to E is a specific classification by Dlubal Software.

• Category A: Ultimate limit state → Table 2.2 of the standard: ULS (1-7)
• Category B: Test load (8)
• Category C: Accidental (9,10)
• Category D: Serviceability limit state (11-13)
• Category E: It was added to the combinatorics on customer request and should be used for the load cases where the support forces from the crane girder design are combined with the related structure.

The article of our Knowledge Base (see Links below) points out that the combinatorics (Classes A to D) should be used for the preliminary design of crane girders. For the supporting structure (brackets, supports, trusses), this combinatorics should not be used.

In your model, the support loads from the crane girder design are only considered in Category E.

• ### A crane runway has small cantilevered girders at the start and end, so that the wheels go as far as to the column. In these areas, the deformations show invalid values. What should I do?

According to the current recommendations, the deformation analysis for a cantilevered crane runway girder is performed using the formulas:

$\mathrm{δz}\;\leq\;(2\;\cdot\;l_{\mathrm{cantilever}})\;/\;\mathrm{allow}.\;\mathrm{deformation}$

$\mathrm{δz}\;\leq\;\mathrm{allow}.\;\max.\;\mathrm{deformation}$

In this case, the program cannot distinguish whether the design for the analysed crane runway girders is irrelevant or not. This decision must be made by an engineer.

Usually, a simple note in the structural analysis is sufficient for an examiner. Alternatively, you can consider whether such a girder is even relevant for the design of the entire crane runway girder and, if necessary, neglect it when entering the geometry.

• ### How do you enter the skew force "S" in the KRANBAHN module so that it acts counter to the HS force?

The S-force and the H S -forces must always be entered with the correct sign. The orientation of these forces can be checked graphically in the "1.5 Load combinations" window or by using the [3D Rendering] button and displaying the load block No. 5.

• ### By default, the crane in the KRANBAHN module extends beyond the ends of the carrier. How can I stop this?

FAQ 002432 EN Add-on Modules CRANEWAY

To determine the maximum support forces, it is often necessary for the crane to be able to travel beyond the support to be dimensioned. This ensures that z. B. in an asymmetrical load distribution and really every wheel crossing the respective critical point of the carrier.

However, if carrier buffers are present to prevent the crane from moving out at the left and / or right end, the distances bL and bR can be specified in the two input fields. This also reduces the number of generated load combinations. An eccentric
Arrangement of the buffers can be described via the button in a dialog (see Figure 1).

There is already an interesting webinar on the topic of " Designing crane runways according to Eurocode 3 ".
• ### Is it possible to specify user-defined stiffener spacings for the individual fields of a craneway girder?

FAQ 002047 EN Stand-Alone Programs CRANEWAY 8.xx

In order to set different stiffener spacings, select the "User-defined" option. After clicking in the text box of Column C, the [...] button appears. Click the button to open a dialog box where you can define stiffener items in the selected text box.

• ### Is it possible to reduce dynamic coefficients when using DIN EN 1993-6?

FAQ 002025 EN Stand-Alone Programs CRANEWAY 8.xx

NCI to DIN EN 1993-6, Chap. 2.3.1, permits reduction of dynamic coefficients for the value >=1,1. Therefore, you can use the reduces support forces for the design of supporting or hanger structures. As long as the "DIN" National Annex is selected in CRANEWAY and the dynamic coefficients are >=1.1, this reduction is taken into account automatically.