In: Civil Engineering

**Using ACI codes.**

Design a simply supported one-way reinforcement concrete floor slab with a dimension of 10 ft x10 ft.

Dead load = 2620 lb

Live load= 28000 lb

Use f'c = 3000 psi and fy = 60,000 psi.

Reinforcement is number 8.

a) Design a one wat slab using ACI code with Reinforcement and the distance of steel bars from one another.

b) Design a slab without reinforcement with minimum thickness.

Compare the load, concrete slab and a reinforced concrete slab can take? What is the advantage of a reinforced concrete slab over a normal concrete slab in this case?

How many and what type of rebars should be places in the reinforcement concrete slab?

Design a simply supported one-way reinforced concrete floor
slab to span 10 ft and carry a service live load of 175 psf and a
service dead load of 25 psf (the dead load does not include the
self-weight of the slab).
Use f’c = 3000 psi and Fy = 60,000 psi. Make the slab
thickness to 1/2-in. increments.

This question is referring to a concrete beam with steel rebar
reinforcement,
For a simply supported beam with width 10 inches and depth 14
inches design the steel to resist a maximum moment of 50 kip feet.
span=15 feet. Concrete 4 ksi. steel is 60 ksi.

A one-way slab has been designed for a simply supported span of
4.0 m with an overall depth of 170 mm and clear cover of 20 mm,
using M 20 concrete and Fe 415 steel. The dead loads are taken as
5.0 kN/m2 and the live loads as 2.0 kN/m2.
The longitudinal bars are designed as 10 mm φ @ 150 c/c. Verify the
adequacy of the thickness provided,
Applying the limiting span/effective depth ratio;
Actual calculation of total deflections.

Design of circular slab with simply supported condition.
Effective span = 5.4 m c/c
Floor finish = 1.5 kN/m2
Imposed load = 3 kN/m2
Characteristic strength of concrete (fck) = 35N/mm2
Characteristic strength of steel (fyk) = 500 N/mm2
Assume cover

Design and draw the final cross section of a one-way
reinforced
concrete slab for the inside of a building, where the span is l
=3,6 m, and the applied live load is
LL = 7,02 KN m2 ⁄ . Normal-weight aggregate concrete is
specified with a density of 23. 5 KN m3 ⁄(reinforcement weight is
included). Use the largest of claculated steel ratio ρ and
0.75ρmax.
Assume:
Es = 2 × 105 MPa, fc′ = 28 MPa and fy =...

Performance of Reinforced Concrete Slab due to Reinforcement
Corrosion

what happen if simply supported slab provide with voids?

1. Design a simply supported slab resting on masonry walls of
thickness 250mm
each with its opposite edges supported (L = 4.75m). Take concrete
grade
32MPa; steel grade 500N; permanent load (G) = 1.5kPa; imposed load
(Q) =
2kPa; ψs = 0.7 & ψl
= 0.4; γconc = 25kN/m3
; ∆=span/500 (HOMEWORK)

a)Use SBC 304 to design a simply supported rectangular RC beam
with tension reinforcement only to carry a service dead load of 18
kN/m (excluding beam’s self-weight) and service live load of 6
kN/m. The span of the beam is 7.5 m. Design data:Compressive
strength of concrete, ?’?=25MPaYield strength of reinforcing steel,
??=420MPaConcrete cover 50mmSize of stirrups 10 mmSize of main
reinforcement20mmMaximum size of aggregate 20 mm
b)What is the maximum uniform live load (in kN/m) that the beam
designed...

Design a simply supported slab over a watch man office of 3.2m x 8m
inner span factored live load of 10 KN/m^2. Use M25 grade concrete
and Fe460 grade steel. Compare your results with void slab and
write a summaryvfor it.

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