Strong vibration wooden beam ceiling

Hello,

only the house manufacturer can confirm whether the calculated quality class was also used. I think you can ask again here and request a confirmation of the quality class.

The specification of the maximum deflection of L/200 can be found almost everywhere in the construction sector except for glass. That means profile length divided by 200 = maximum allowable deflection in the serviceability limit state, i.e. when floors, furniture, etc. are still present in the room. Let's assume one of the beams is 10.0m long (e.g. house width) and rests again in the middle on a supporting beam, resulting in a span length of 5.00m. 5000mm / 200 = 25mm deflection.

That’s why never again a prefabricated house.. when someone walks in ours it sounds like an elephant is stomping..

Next house [Kalksandstein] with at least 20cm concrete ceiling.

a span of 5.00m. 5000mm / 200 = 25mm deflection.

A deflection of 2.5 cm can be seen with the naked eye and is probably as realistic as the oil consumption of 1l/1000km that some car manufacturers cite as state of the art.

2.5cm deflection can be seen with the naked eye and is probably as realistic as the oil consumption of 1l/1000km that some car manufacturers claim as state of the art

That is the maximum mathematically permissible value and must not be exceeded.
In practice, this will -hopefully- not prove to be the case. Every water bottle will automatically roll to the center of the room if it falls over. Not to mention marbles.

Moreover, in the structural analysis for each position, the actual max. deflection in cm should appear.