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Smart and easy solution for stabilized staircases

By Peikko’s blog team

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 FATBAR®s are post-tensioned against high dynamic stress and thus protect the foundations from cracking even in harsh conditions. The unique design enables FATBAR®s 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 FATBAR®s 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, FATBAR®s 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.