fischer shear connectors transfer loads into existing structures

"During the renovation work, fastening systems from the fischer corporate group were used in almost all trades," reports Thomas Held, who accompanied the project as a field service technician. "For the first time, our new shear connectors FCC were used in the installation of the new penthouse apartments." For a force-fit connection of the old concrete support layer of the flat roof with the new in-situ concrete addition, fischer provided a suitable system with the shear connector FCC. "The FCC anchor was bonded with the injectable mortar FIS EM and the load was thus transferred to the old supporting structure," emphasizes Thomas Held. The connection of the in-situ concrete layer was made during concreting and was designed according to the head bolt theory. In this way, the basis for the construction of the penthouse apartments could be established on-site. The panels of the rising wooden structure were anchored to the reinforced concrete ceiling with the fischer anchor bolt FAZ II. The anchoring of the partially renewed balcony structures was done with the fischer Highbond system, which was the only system capable of transferring the altered loads into the structural framework.

"A particular highlight in the facade insulation was the fastening of the insulation panels with the fischer/Sto Ecotwist, which was able to demonstrate its universal applicability clearly on this project," also expresses fischer Key Account Manager Adolf Hoffmann. The innovative insulation plug was processed quickly by the craftsmen because it is very easy to install. "Due to the strongly varying insulation thicknesses, the Ecotwist was the optimal plug for this construction project," confirmed foreman H. Steiger from the executing plasterer company Märte, Sipplingen. At the residential buildings in Singen, PS insulation panels Sto Top 32 with thicknesses of 60 mm to 240 mm were applied to the existing concrete substructure with its 20 mm thick old plaster layer. The fixing of panels with a thickness of 100 mm and above was carried out with the Ecotwist 10-30.

Winner of the German Client Award 2015/2016

The client had announced an architectural competition for the renovation measures on Überlinger Straße, which was won by the architectural firm Hermann and Bosch from Stuttgart. The bathrooms, façades, windows, balconies, flat roofs, and outdoor areas were modernized. The improvement of the residential environment, the senior-friendly adaptation including barrier-free house entrances, modernized elevators, and modified balconies significantly contribute to the increase in the quality of the neighborhood.

"Despite the uniform structure of the entire ensemble, each building receives its own identity through the differently colored bands," states the jury's vote for the German Client Award 2015/2016. The building access was newly organized to be barrier-free. The new threshold-free entrances to the entrance foyers are accessed via external ramps, stairs, and automatic sliding doors. "Cost savings and shorter construction times were made possible by using prefabricated modules for the roof renovation and extension as well as by repurposing the old garbage chutes for the vertical reorganization of the riser shafts.

Thanks to sensitive tenant support, the renovation was achieved while the building was occupied. The jury agreed that through the interaction of these many measures, the future viability of the residential complex was excellently secured," the jury concludes.