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It is certainly not normal to have 5 cracks in the balcony floor. But whether it affects security depends on the specific situation.
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It depends on the size and shape of the crack.
Possible reasons are:
When the concrete was poured, the workers stepped on the steel bars to the bottom. If it is a cantilevered structure, this balcony will fall over. >>>More
There needs to be a reserved pipeline, and there is no obstruction.
It's very confusing, but I can still understand it. Cantilever balconies can't be double-layered, since the balcony is walled on three sides, it is not necessary to use double-layer bars. To put it bluntly, it's just a floor slab. >>>More
The newly bought house, a total of 10 floors, I have a 3-meter-long thin crack in the central floor of the living room on the 6th floor, and the crack is not visible to the naked eye on the bottom plate.
Be careful, it's important that the balcony has a rebar, and below 1500, the light block will be fine.