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Anonymous users2024-01-24Yes, why:
1. If the span is large, the weight of the concrete will be very large.
2. The thickness of the cast-in-place plate is limited, only about 15cm, its strength is not too strong, and the weight of supporting such a large area is a bit reluctant.
3. The thickness of the steel bars in the cast-in-place slab is also limited, only about 10.
The impact is huge. We know that the bare leakage of the rebar will corrode and rust on the outside, and the rebar must have a sufficient thickness of concrete to include a protective layer called concrete.
The stressed steel bar of the balcony slab of the beam should be placed on the upper part of the plate, which is a tensile steel bar, also called a negative moment bar.
As a living balcony, you don't have to worry so much, as a leisure balcony, you have to consider the ceiling beams.
Cutting a stirrup in the span of that beam is a trivial matter, but it is a bit bad to lose a bottom bar!
Balcony beams are generally cantilevered beams with stirrup openings facing downward.