References

Load frame for fire resistance testing of load-bearing wall structures and firewalls

A centric or off-centre load of 1500 kN can be applied to the test structure.

Load frame for fire resistance testing of load-bearing wall structures and firewalls

In 2013, a new load frame for testing the fire resistance of load-bearing wall structures and firewalls was introduced at the fire testing facility. The load frame has a remarkably high stiffness. The wall structure to be tested is mechanically loaded from below. In the current configuration with five hydraulic presses, it is possible to apply a centric or off-centre load of 1500 kN to the test structure. In addition, the attachment surfaces for walls were extended to allow for a more convenient, unhindered attachment to the new support frame. 

Masonry walls and metal stud walls are not the only load-bearing structures for which the fire resistance is determined pursuant to DIN EN 1365-1 in conjunction with shock testing pursuant to DIN EN 1363-2 and which are classified as firewalls pursuant to DIN EN 13501-2. In recent years, load-bearing solid wood structures and timber stud structures have increasingly also been tested in the same manner. The test wall set-up personnel have access to compressed air and high-voltage current at each of the three new attachment surfaces. In addition, a second crane (10 tonne) was installed, which can traverse the entire facility. As a whole, these measures have created an environment which ensures problem-free preparation and execution of fire resistance tests, especially for manufacturers of load-bearing wall structures such as brick walls or solid wood walls.

Container homes – full-scale natural fire testing

Fire test on a container building in order to verify its 30-minute stability

Container homes – full-scale natural fire testing

§ 14 of the Model Building Code (MBO) specifies that structural installations should be planned, constructed and maintained in such a way as to prevent the occurrence of fire and the propagation of heat and smoke (fire propagation) and to ensure that, in the event of fire, it is possible to rescue people and animals, and effectively extinguish the fire. These requirements must also be met by temporary structures such as quick-assembly container buildings.

The fact that individual containers are attached to a steel framework system means that it is generally necessary to verify the stability of the overall construction experimentally by means of a natural fire test on a comparable container building.

Die Brandbeanspruchung wurde im aktuellen Versuch entsprechend der Vorgabe des Baureferates München mit einer Brandlastdichte (Wärmemenge aller brennbaren Stoffe, bezogen auf die Brandabschnittsfläche/Brandraum) von 800 MJ/m² gewählt. 

CONZEPT Containerhandel GmbH produces a range of prefabricated container units. The company commissioned MFPA Leipzig GmbH to conduct fire testing on a container building in order to verify its stability and integrity over a 30-minute period in the event of a destructive fire.

BASt research programme on road engineering

Use of PP fibre-reinforced concretes in road tunnel construction

BASt research programme on road engineering

As part of a research programme conducted by the Federal Highway Research Institute (BASt), MFPA Leipzig GmbH has been assigned the workstream “Quality assurance and repair concepts for the use of polypropylene fibre-reinforced concrete to improve the fire behaviour and spalling of the inner shell of road tunnels”. Over the next 20 months, this R&D project should answer unresolved questions relating to the use of polypropylene fibre-reinforced concrete in road tunnel construction. In the first instance, this will include analyses of the technical properties of concrete and questions related to its long-term resistance and the possibility of using polypropylene fibre-reinforced concrete to repair road tunnels on federal highways. The R&D project involves experts from the MFPA divisions Building Materials, Structural Fire Protection and Research, Development, Modelling.

Zoologischer Garten station, Berlin

Calculations to determine the effect of temperature in the event of fire

Zoologischer Garten station, Berlin

Calculations to determine the effect of temperature on the load-bearing structure of the railway hall of the Zoologischer Garten station in Berlin in the event of fire (in collaboration with Leonhardt, Andrä und Partner)

SACAC AG

Expert assessment of the fire resistance rating of high-strength spun concrete supports

SACAC AG

Expert assessment of the fire resistance rating and fire tests of high-strength spun concrete supports made by SACAC Schleuderbetonwerk AG

BASt project on bridge fires

The effect of extreme fire scenarios on the load-bearing capacity and durability of bridge...

BASt project on bridge fires

BASt – The effect of extreme fire scenarios on the load-bearing capacity and durability of bridge structures. FE 89.0278/2012 (Bridge fire)

PcP fire protection gratings

Expert opinion assessing the behaviour of PcP fire protection gratings and fire tests

PcP fire protection gratings

Expert opinion assessing the behaviour of PcP fire protection gratings type LHD with different sizes of oil collecting basins and a total surface area of up to 220m² and fire tests

Napcabs

Expert opinion to determine the fire load and assessment of the heat release rate

Napcabs

Expert opinion to determine the fire load and assessment of the heat release rate of napcabs sleeping cabins of the type in use at Munich Airport