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Making a dark beam in the middle of the floor slab does not have much effect on the bending strength of the floor slab, because the dark beam is too thin and the stiffness is too poor.
Frame structures are generally not available, but it also depends on the overall structure of the house. >>>More
Add steel beams under the floor slab.
Please professional company carbon fiber reinforcement. >>>More
The distance between the two rooms is 6.8 meters, and the cement concrete structure does not matter.
Dark beams and bright beams are not needed, as long as they are equipped with double-layer two-way reinforcement mesh, and the diameter of the reinforcement is not less than 12, and the spacing is within 15 cm. I hope my answer can help you.
Multiply with in and divide by multiplication.