HEllo all! My question is: Does the

[Karan1]

HEllo all! My question is: Does the slab supported on four beam makes the slab two way. Where one beam is supported on columns, two beam is cantilevered from two column and one last beam is resting on the edge of two cantilever beam. And is it good to provide beam resting on the edge of two cantilever beam? I am designing a balcony of 7'10"*10'8"

 

[Smoulder]

You should model this with true stiffness for all members including the column supported beam in torsion, backspan of the slab behind that beam and bending of the columns that the cantilever beams come out from. It all depends on things you didn't tell us.

 

[BulbTheBuilder]

Having four beams around a slab doesn't necessarily mean that it's two. If you see the image attached, the 20'x4' slab will be a one way slab even though it has four beams.

From your description, I sketched "A" in the image. My question, what is the balcony for? What is it made of? Is made of concrete, steel, or wood. If it's concrete and you want to avoid having extra SW on the beams, you can use the 3 beam configuration as drawn "B"

 

[BAretired]

My question is: Does the slab supported on four beam makes the slab two way. Where one beam is supported on columns, two beam is cantilevered from two column and one last beam is resting on the edge of two cantilever beam. And is it good to provide beam resting on the edge of two cantilever beam? I am designing a balcony of 7'10"*10'8"

Your description is open to misinterpretation. Provide a framing plan for the balcony.