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Suitability of double walls for use in regions with high earthquake intensity proven

Franz Oberndorfer GmbH & Co KG, 4623 Gunskirchen, Austria


In the context of its international activities the Oberndorfer company, which is based in Gunskirchen in Austria, has very often been faced with the use of double walls in areas with high seismic activity. The use of double walls using the lattice girder system is often only possible to a limited extent if at all. The reason for this is the linear mode of action of the lattice girder system, which prevents the integration in a sufficient length of the horizontal reinforcement cages necessary in the earthquake regions. Oberndorfer realised very quickly that a punctiform mode of action of a wall connection system can solve this problem. This gave birth to the idea of developing the “KAP wave system” as an earthquake wave, since this system (see the separate report in this issue) offers the ideal solution for this. The double wall can thus be used in countries with high seismic activity such as Japan, New Zealand, Italy, Turkey or Greece. The renowned, "Middle East Technical University" (METU) in Ankara, Turkey which specialises in earthquake calculations, was commissioned by Oberdorfer to conduct a corresponding scientific study in order to prove the suitability of double walls with the KAP wave system for use in regions with a high earthquake intensity. Extensive tests proved that the KAP wave is indeed outstandingly well suited.

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Franz Oberndorfer GmbH & Co KG
Lambacher Straße 14
4623 Gunskirchen, Austria
T +43 7246 72720
F +43 7246 72721000

CPi worldwide journals are trade journals for the concrete and precast concrete industry that are published in 10 different language editions in more than 170 countries. These trade journals, with their practical editorial reporting on research, production and applications, are specifically addressing the decision makers of the concrete and precast concrete industry.

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