View of intricate steel framework designed by Blanke + Zollner Ingenieure GmbH showing beams and connections.
Case Study

High-Performance Software for Steel Structures – Blanke + Zollner Engineers

Mastering Every Situation, from Standard to Special Structures

Engineering offices specializing in steel structures regularly face the challenge of reliably handling both routine design tasks and complex special structures using a single software environment. At Blanke + Zollner Ingenieure, the project portfolio ranges from conventional steel halls and industrial structures to special structures and detailed analyses that fall outside standard solutions. Manually determining load assumptions—especially for large, spatially complex models—is time-consuming and prone to errors. The team needed a platform that would enable them to handle both routine and special tasks with equal reliability and precision.

Integrated Steel Structure Design in RFEM Environment

RFEM provides Blanke + Zollner engineers a flexible 3D modeling platform for the entire spectrum of structural design. Together with the add-ons Steel Design, Steel Joints, and Concrete Foundations, all required design checks can be performed in a unified software environment—without having to switch between different tools. The Member Loads from Area Loads wizard eliminates the need to manually determine member loads, while the integrated wind load generator allowed for a 30% reduction in wind loads for one project, leading to an efficient solution. The clear structure of the input tables and the transparent display of the results enable a reliable evaluation of even complex structural systems.

Advantages of Using Dlubal Software

  • Complete design checks in a single environment — Steel design, joint design, and concrete foundations are handled within an integrated workflow—without switching tools, and with consistent, verifiable documentation.
  • Significant time savings during load input — The Member Loads from Area Loads wizard automates the derivation of line loads from surface loads and saves considerable effort when working with larger 3D models.
  • Optimized wind load calculation — The integrated wind load generator delivers precise results according to standards; in one project, wind loads were reduced by 30%, which directly contributed to the efficiency of the structure.
  • Reliable for Standard and Special Structures — Thanks to its wide range of modeling and analysis options, RFEM is equally suitable for classic steel halls as well as for complex special structures.

Steel Hall Project with Complete Design Package

A clear example of RFEM’s capabilities was the design of a steel hall by Blanke + Zollner Ingenieure. The project included not only the structural analysis of the main structure but also the complete design of the steel joints and the reinforced concrete foundations. Thanks to RFEM’s integrated add-on ecosystem, the entire scope—from member analysis and connection detailing to foundation design—could be handled within a single software environment.

This integrated approach is a decisive advantage for the company. Being able to generate all required verifiable design checks in a consistent environment reduces coordination efforts, minimizes interface errors, and simplifies coordination with reviewing authorities. Philip Zollner cites this as a key reason why the company uses RFEM as its central tool for structural design.

Intelligent Load Input and Wind Optimization Using RFEM

Two features of RFEM have proven to be particularly valuable in the daily workflow at Blanke + Zollner. The Member Loads from Area Loads wizard allows surface loads to be applied directly to the 3D model. Line loads are automatically applied to the individual members. Previously, it was necessary to perform the calculation manually, but now it can be done with just a few clicks; the time savings are significant, especially for larger or geometrically complex structures.

Using the Wind Load Generator, the team was able to reduce wind loads by 30% in one project compared to a simplified approach through a precise, calculation according to standards, thereby lowering construction costs.

Both features show that RFEM not only improves calculation accuracy but also actively contributes to cost efficiency.