Quote Originally Posted by Полуношник
You can use "дотрясся" then.
That'd imlpy that the lift was juddering all its way up to the six floor, not that it juddered when it stopped there.

Шум is either a meaningless sound as was noted above or a sound you can't identify, like where it's coming from or what's its nature. But шум is mostly used to describe noise coming from a multitude of different sounds. E.g. Many people talking at once.