In two way slab the ratio of longer span l to shorter span b is less than 2.
One way slab on concrete walls.
In reinforced concrete construction the slab is an extensively used structural element forming floors and roofs.
Ubc recommend concrete slab and composite topping slab serving as structural diaphragm used to transmit earthquake forces to be 50mm.
A concrete slab is the plane element having the depth d much smaller than its span and width.
The one way slab is a slab which is supported by parallel walls or beams and whose length to breadth ratio is equal to or greater than two and it bends in only one direction spanning direction while it is transferring the loads to the two supporting walls or beams because of its geometry.
When a reinforced concrete slab is supported by beams on all the four sides and the loads are carried by the supports along with both directions it is known as two way slab.
Difference between one way and two way slab are as follows.
If you plan on pouring a lot of concrete build a wood and mesh barrier first to ensure your new slab is strong.
It may be supported by reinforced concrete beam by masonry wall or directly by column.
A reinforced concrete slab is built integrally with its supports and consists of equal span of 15 ft.
Adding fresh concrete is a common way to level out old slabs and patch damage.
The service live load is 100 psf and 4000 psi concrete is specified for use with steel with a yield stress equal to 60000 psi.
No matter how strong a slab of concrete seems it will wear out over time.
I e longer span l shorter span b 2.