Steel support structures coupled with a complex textile membrane design enhance stability and aesthetic in modern constructions.
Case Study

From Crane Runways to Membranes: How WAF GmbH Tackles a Wide Range of Structural Challenges

Challenge

The design of specialized steel structures and complex membrane architectures requires dealing with irregular geometries, strict regulatory requirements, and highly complex aerodynamic wind loads. For WAF GmbH, the biggest challenge was to establish a workflow that seamlessly integrates traditional structural engineering in steel construction with the sophisticated cutting patterns of textile membranes and computational fluid dynamics (CFD) simulations—all while maintaining complete transparency.

Solution

Dlubal Software provided WAF GmbH with a perfectly integrated structural analysis software suite centered around the main program RFEM. By using RFEM 6, enhanced with add-ons for membrane design and torsional warping, the company was able to centralize its entire design process. In combination with RWIND for state-of-the-art wind analyses, WAF GmbH automates complex geometric calculations, provides verifiable detailed design checks including formula references, and benefits from maximum flexibility without a hardware dongle thanks to online licensing.

Advantages of Using Dlubal Software

  • Consistent Material Workflow: The intuitive user interface and the dialog boxes for steel, timber, and concrete—which are designed in a very similar way—allow for a seamless transition between different materials without the need for lengthy familiarization.
  • Complete Clarity for Structural Engineers: The detailed design checks are output in a clear and organized manner, with direct references to the relevant formulas in the standards, which significantly speeds up the external review and approval process.
  • Unparalleled Precision in Steel Construction: The consideration of the 7th degree of freedom using the Torsional Warping (7th Degree of Freedom) add-on is directly integrated into RFEM 6 and offers significant advantages in stability analysis.
  • Location-Independent Flexibility: Online licensing eliminates the need for physical dongles, allowing complex analyses to be performed flexibly from any location.

From Craneway Construction to Specialized Membrane Design

WAF GmbH’s success story with Dlubal Software began with a specific need for a craneway calculation. The decision to use the stand-alone program CRANEWAY proved to be a stroke of luck, which later paved the way into new fields of expertise. Dr.-Ing. Fischer used this foundation to immerse himself in membrane construction, which ultimately led to a master’s degree completed with honors—a milestone that was made possible in part by Dlubal’s precise membrane and cutting pattern modules.

Seamless Wind Analysis and Fast Verification Approval

The integration of RWIND into the daily workflow has revolutionized the determination of wind loads for irregular geometries. The program provides phenomenal and easy-to-use CFD flow simulations that are essential for calculating membrane structures. Because the calculations are presented in a transparent manner, they can be easily verified. This saves WAF GmbH valuable time and money on every project.