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3000-10000 will do the trick.
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It depends on what material you use for reinforcement, and it costs 10,000 to reinforce with I-beam.
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Thank you prawns for your help, but I still don't understand much, can you explain it more clearly?
It's not very suitable, the living room is 3 meters high to give people a more comfortable feeling, but the chandelier is 1 meter high will give people a sense of depression.
The specific situation is unknown! Crack length, building height, single or multi-unit, etc.!
Find the area: length and width, that is, square meters.
Definitely overloaded, the load on the balcony will not be so high. There is no information at hand, and it can be concluded based on memorization and impressions alone.
The two ends and the middle of the 14 steel bars each 4 meters long distance 60-80, the middle net shop 8-10 steel bar spacing 100.