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1. Design for the Lower Flange of Suspension Cranes According to DIN EN 1993-6

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For suspension cranes, the bottom chord of the runway girder is subjected to local flange bending due to the wheel loads in addition to the main load bearing capacity. The bottom chord behaves like a slab due to these local bending stresses and has a biaxial stress condition [1].
2. Design of Web Fillet Welds of Crane Girders According to EN 1993-6

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The article series about the design of crane girder welds is concluded by this article describing the design of web fillet welds, following the previous articles about the design of rail welds of crane girders at ultimate limit state and fatigue limit state. Both the ultimate limit state and the fatigue limit state are considered.

3. BIM Workflow: Data Exchange Using IFC Files

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In the BIM workflow, IFC files are frequently used as the basis for data exchange between CAD and structural engineering software. However, there is a fundamental problem with this approach. This article explains various types of IFC files, and provides an overview of the import and export options in the Dlubal Software programs.

4. Calculating Critical Load Factor for Linear Buckling Analysis

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Buckling analysis according to the effective width method or the reduced stress method is based on the determination of the system critical load, hereinafter called LBA (linear buckling analysis). This article explains the analytical calculation of the critical load factor as well as utilisation of the finite element method (FEM).

5. Fatigue Limit State Design of Rail Welds of Crane Girders According to EN 1993-6

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Based on the technical article about the ultimate limit state design of rail welds, the following explanation refers to the process of fatigue design of rail welds. In particular, this article explains in detail the effects of considering the eccentric wheel load of 1/4 of the rail head width.

6. Consideration of Eccentric Wheel Load Application for Weld Design at ULS

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The eccentric wheel load application of 1/4 of the rail head width has to be considered only for the fatigue design from damage class S3 according to DIN EN 1993‑6. An additional input option in detail settings allows you to consider this eccentricity for the fatigue design at the ultimate limit state as well. By selecting this option, the design with the eccentric load applied is always considered without regard to the damage class.

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In CRANEWAY, the eccentric wheel loading of 1/4 of the rail head width is used for the fatigue design of welds as well as for craneway girder design according to the National Annex of Germany and as from the damage class of S3.

8. Ultimate Limit State Design of Rail Welds of Crane Girders According to EN 1993-6

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If crane runway girders are designed with flat steel rails, the welding of these rails is always a detail for the design. As a rail fixing, you can generally select between continuous and intermittent fillet weld. The following article provides an overview of the design processes and their specific features, especially when using the EN 1993‑6.

9. Buckling Analysis of Plates with Stiffeners Using PLATE-BUCKLING

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Buckling analysis of plates with stiffeners is a unique task for engineers. For this, EN 1993‑1‑5 provides three calculation methods:

• Effective Cross-Section Method, [1], Chapter 4‑7
• Reduced Stress Method, [1], Chapter 10
• Finite Element Methods of Analysis (FEM), [1], Appendix C
10. Damage Equivalent Factors

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Damage equivalent factors depend on the respective components to be designed in RF‑/STEEL Fatigue Members and they are explained in the corresponding standards. The following list shows an overview of the standards, which describe the calculation of the damage equivalent factors in detail.

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