Strong floor at TU Berlin
- © E+K Massivbau
Since February 2004 the TU-Berlin campus of
civil engineering located in Wedding is equipped with a strong floor
for testing and research purposes. The initial capacity of the
hydraulic jack of the strong floor was 2,5 MN. In the year 2007 an
additional hydraulic jack with capacity 1 MN was provided.
Through this brief information, we wish to address those who might be
interested to investigate structural elements or those who require to
plan or examine new projects. For this purpose our facilities and our
personnel are available for collaboration.
Full-scale Saddletest for Fa. VSL (Schweiz) AG 
Our strong floor is one of the largest in Europe of its kind. It has a grid of 1 m x 1 m and dimensions of 12m x 25m. It consists of a 1 m thick concrete slab which constitutes the top side of a box section. As such the strong floor is considered to be adequately stiff and has a high loading capacity.
The frame structure and the supports are built as a bolted steel structure with pre-stressed high strength connections. The steel frame structure can carry a maximum load of 4000 kN (2000 kN for each half of the portal frame). The maximum horizontal load is equal to 200 kN for each half of the portal frame up to 5 m above the floor level. The maximum spacing between the portal frame halves is equal to 7 m and the clear height of the portal frame ranges from 1485 mm to 5985 mm with a grid adjustment of 100 mm.
- © E+K Massivbau
Two hydraulic jacks of type “LAH” from the
company ”Zwick”, are available with capacities of 2500 kN and 1000
kN with maximum strokes of 400 mm and 250 mm respectively. The
hydraulic jacks are supplied with a powerful hydraulic system which is
controlled by a PC-controller “HYDROWIN 9640-E”. Accordingly,
high flexibility in carrying out static and dynamic load tests is
The load test rig at the TU-Berlin offers always in addition to the use of the available test facilities, the possibility to establish all kind of test arrangements and to conduct tests and investigations within the specified loading capacity.