lt is often necessary to take unusual steps when preserving monuments. During the general:overhaul, the existing reinforced concrete coffered ceilings could only be saved from demolition on the basis of experimental testing, thereby preserving them as part of the monument.
More than 90 years of crane operation and the handling of agressive potash had left heavy traces on this reinorced concrete structure. We checked whether it is permissible to keep up operations until the structure can either be overhauled or replaced by a new construction.
After WW II this bunker had purposefully been made inoperable by controlled blastings of the inner structure. We accompanied the reconstruction and conversion into a power plant.
The roof of the “Neuen Museum Weserburg” in Bremen, Germany, is made of light-weight concrete slabs. They showed visible deformations and cracks (w ≤ 0,5 mm). We tested both its seriveability and its load carrying safety.
Our company has gained experience how to connect a steel tower to a reinforced concrete foundation, how to deal with possible damages and methods of reconstruction.
In order to convert the The Mining Directorate in Saarbrücken to a shopping mall the load carrying capacity of all structures must been proven for the increased live loads, including flights of stairs, half-paces and columns.
After cracks had been discovered in the superstructures we were commissioned to explore the current load bearing capability of several rail bridges in Austria.
The reinforced concrete bridge was one of the last existing “Möller-Bridge”, and was tested in-situ by using the special loading vehicle “BELFA”
The facades of the reinforced frame construction should be energy-efficiently refurbished. The joints showed partially defects, so that the load transfer of both vertical and horizontal wind loads could not be shown satisfactorily.