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Anonymous users2024-01-23For such beams (or slabs) with large spans, the questioner often only thinks of the beams (slabs) and ignores the supports!
The main building is a large-span reinforced concrete single-span frame, and the columns (bearings) must be carefully designed, so it is not appropriate to seek answers on the Internet, and formal design should be entrusted, and do not treat life and property and public safety as a game!
Ordinary structure buildings of this size generally have girders, and the cross-section of the beams under the general plate is 25-30*35-42cm, and it is best to maintain a meter of clearance between the bottom of the beam and the ground of the general residence after completion
100 square area, it is recommended to be more than 60 inches, or with a projection.
It's the same as my house, I made a 600-thick girder in the middle, and I can't forget it without a beam.
According to the load-bearing load, generally according to the structure of the reinforcement is: under 10 25, on 3 18, load-bearing width 90 cm, the beam body weight is large enough, plus such a large span, the beam is high.
Hang four hollow-shaped tops.