Can the Land and Resources Bureau know what kind of building the old community is? Are there any steel bars on the floor? The decoration upstairs has cracked my floor. Will the floor collapse?

This needs to check the original construction unit (original property right unit) of the old community first. If the original construction unit is a regular state-owned enterprise or local state-owned enterprise, or a civil residence (building) built by a government department, then there will be design and construction drawings, which will be kept by the technical construction archives department for a long time, and the original unit will also have construction design and construction files for safekeeping. As for the original buildings, most of them are reinforced concrete brick-concrete structures, and there will definitely be steel bars on the floor. As for the diameter and quantity of floor reinforcement, it can only be determined by checking the drawings. Since the decoration has cracked the floor, it is really necessary to seriously communicate and negotiate with the current property company and owners. If negotiation fails, you can appeal to the government housing construction department or quality supervision department and ask the owner to implement relevant laws and regulations.