Lecture 11 Flashcards
How are ties arranged?
The arrangement of ties varies with the quantity and arrangement of vertical bars.
One‐Way Solid Slab
A system of beams support the slab. The slab is reinforced to span in one direction only.
More expensive
One‐Way Concrete Joist (Rib Slab)
A system of beams and slender, closely‐space ribs support a one‐way slab.
Economical
Wide‐Module Concrete Joist System
Like one‐way joist, but ribs are spaced 4 to 6 feet rather than 20 to 30 inches.
Thicker slab
Two‐Way Framing Systems
A two‐way slab is reinforced so that it acts structurally in both directions.
More structurally efficient than one‐way slabs of same thickness
Two‐Way Solid Slab
A system of beams supports a two‐way slab.
Heavy loads
Expensive
Two‐Way Flat Slab
A two‐way slab is supported by columns without beams.
Carry heavier loads than Flat Plate
Two‐Way Flat Plate
wo‐way slab supported by columns only, without column capitals or drop panels.
Less expensive for lighter loads
Two‐Way Waffle Slab (Two‐Way Concrete Joist)
Like one‐way joist, but with two‐way ribs.
