Lataa tästä tutkintaselostus, pdf-tiedosto, 4,6 Mt
Lataa tästä tutkintaselostus, pdf-tiedosto, 4,6 Mt
Lataa tästä tutkintaselostus, pdf-tiedosto, 4,6 Mt
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B1/2010Y<br />
Urheiluhallin katon romahtaminen Järvenpäässä 23.2.2010<br />
ja muita rakennevaurioita kevättalvella 2010<br />
A canopy used to shelter firewood collapsed onto an employee, causing fatal injuries. This structure<br />
was not subject to a building permit. The working conditions posed inherent risks, since firewood<br />
was being taken out in a horizontal direction under an unsupported canopy. Due to the<br />
snow load, the canopy weighed approximately one metric ton. As this case demonstrates, structures<br />
not subject to a building permit can also involve fundamental risks.<br />
The investigation commission decided to reiterate two safety recommendations issued previously<br />
and to issue three new ones. Moreover, the investigation gave rise to eight further remarks and<br />
proposals. The recommendations propose that a systematic and regular inspection procedure be<br />
established for old buildings, which could be termed an inspection, for example. The second recommendation<br />
reiterated calls for the development of a database for building-related accidents<br />
and incidents. A current problem lies in the fact that no information has been collected, for example,<br />
on the more than one hundred collapses and incidents which probably occurred during early<br />
2010. Such information could be exploited in safety enhancement work.<br />
An investigation of the collapsed steelwork halls revealed that, once defects in the buildings had<br />
been identified, no appropriate communication channel was available. Nor was it possible to obtain<br />
properly assembled information on whether similar defects had been detected or repaired in<br />
other halls. The investigation committee recommends that a procedure be developed to this end.<br />
With respect to large new buildings, the investigation commission recommends that a third-party<br />
review of the structural design be required, in the case of buildings designed to accommodate<br />
large numbers of people.<br />
Furthermore, the investigation commission recommends that the design requirements set for<br />
loads caused by drifted snow be re-considered. In particular, it should be investigated whether<br />
more careful account might be taken of the following during the design phase: the possibility of<br />
proportionally greater snow drifts on roofs significantly higher than the surrounding terrain or located<br />
at the foot of a hill.<br />
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