Question

A one-way solid slab of a span of 3000 mm and a total thickness,
f is 414 MPa, the total cover of steel is 30
mm, minimum reinforcement ratio is _{y} ,ρ =
0.0033, maximum reinforcement ratio is
_{min}ρ = 0.0135, and density of concrete
_{max}γ = 24 kN/m_{c}^{3}. What is the required
area of steel reinforcement, A, needed to
resist the ultimate bending moment? urgent answer please_{s,req.} |

Answer #1

Area of steel required to resist moment developed is calculated.

Calculated area of steel is checked for minimum and maximum steel ratio.

Design a T Beam for s floor system. Thickness of slab is 75 mm
and width of the web is 375 mm, with an effective depth of 600 mm.
The beam carries a dead load moment of 270 KN m and a live load
moment of 460 KN m. The beam has a span of 5.4 m and has a spacing
center to center equal to 1.8 m, fc’ = 20.7 MPa, fy = 345 MPa.

The project will include the design of One Way Slabs, Beams and
Columns.
Choose the largest room in your house/apartment and measure the
area. let's say (length 6m* width 4m) ( height 3m)
Steel yield stress (fy = 60000 psi)
Concrete ultimate compressive strength (f’c = 4000 psi)
Reinforced concrete density = 150 lb/ft3.
Normal weight concrete is used.
The slab is treated as a one way slab and subjected to a dead
load of 120 psf (excluding the self-weight...

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