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Smart and easy solution for stabilized staircases

November, 18, 2019

Good innovations are often multipurpose. Peikko’s FATBAR was designed for wind turbine foundations but discovered adequate for post-tensioning staircases as well.

FATBAR Post-Tensioned Anchor System for wind turbine foundations and other demanding engineering applications sustains fatigue loads by ETAG 13 test with ease. The FATBARs are post-tensioned against high dynamic stress and thus protect the foundations from cracking even in harsh conditions. The unique design enables FATBARs to sustain greater fatigue loads, which increases the life span of turbine foundations and thereby the cost efficiency of the entire installation. However, an innovative and solution-oriented approach has led to using FATBARs also for post-tensioning staircases.

Open-mindedness leading to new solutions

Sometimes good solutions are at hand and only waiting for someone to discover them. This is how the story of FATBAR goes as well. When looking for a post-tensioning solution in a customer case, a clever guy working on the construction of a residential multi-story building realized we actually already have the solution in our product range.  

When used for staircases, FATBARs are attached to anchor plates with a post-tensioning jack at the top part of the wall element. Together with the reinforcement, this creates a stabilizing structure sustaining high fatigue loads. The system has been innovated and further developed in collaboration with our customer Safe-Con.

The use of FATBAR allows transferring more forces into a slimmer structure, which in turn leads to important material savings of both concrete and reinforcement. Furthermore, the FATBAR and precast concrete elements feature design for disassembly as they can more easily be taken apart at end the end of the lifecycle of a building. This way, in the future the material resources will reassert circular economy. Simply put, increased sustainability and smaller environmental footprint.

Johannes Greisen

Johannes Greisen works as Senior Manager, Circular Economy at Peikko Group Corporation. He holds a Master’s Degree in Architecture, Industrial Design and a PhD in Robotics and Concrete Architecture. Johannes has been working with major building materials such as aluminum, polymers, concrete, wood, and most recently steel. He embraces the interplay between digital and physical realities and the relation between the fabrication process and the fabricated object. Johannes is thriving in the interdisciplinary cross-field of industry and research & development. He combines creativity and commercial enterprise by bringing innovative fabrication methods into building design and construction – always with the architectural aim of enhancing aesthetics, functionality, durability, and cohesion in our built environment. Johannes is targeting environmentally and economically sustainable circularity.

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