In: Civil Engineering

Design an isolated rectangular footing to support an interior column 40 cm × 40 cm in cross section and carries a dead load of 800 kN and a live load of 600 kN. Use f́c= 21 MPa, fy= 420 MPa, q all (net) =200 kN / m2 , γsoil = 17 kN /m3 , and Df =1.25 m. Space limitations are such that one lateral dimension cannot exceed 2.5 m

Design a rectangular footing for an 18-in square interior column
with a dead load of 210 k and a live load of 180 k. Make the length
of the long side equal to twice the width of the short side, fy =
60,000 psi, fc' = 4000 psi, normal weight, and qallowable= 3650
psf. Assume the base of the footing is 5 ft 0 in below-grade , γ
concrete = 150 pcf and γ soil = 100 pcf. Also, assume...

Design a square interior column footing for a 15-in. square tied
interior column that supports a dead load of 160 kips and live load
of 180 kips. The column is reinforced with eight # 8 bars, also,
the base of the footing is 6 ft below the grade line, the soil
weight is 100 lb/ft3, the concrete weight is 150 lb/ft3, f’c =
4,000 psi, fy = 60,000 psi and qa = 4 kip/ft2.

What will be the length (L in meter) of a
rectangular footing to support rectangular column 20x70 cm and
carries a dead load of 625 kN and live load of 426 kN. The net
allowable bearing pressure is 155 kPa. The design should be
according to (ACI) code with the following parameters: fc’ = 28
MPa, fy = 420 MPa.

What will be the width (B in meter) of a square
footing to support rectangular column 40x40 cm and carries a dead
load of 614 kN and live load of 477 kN. The net allowable bearing
pressure is 180 kPa. The design should be according to (ACI) code
with the following parameters: fc’ = 28 MPa, fy = 420
MPa.

QUESTIONS:
Design a square column footing for a 20-in. square
tied interior column that supports loads of DL (170) k and Live
load LL (210) k. The column is reinforced with eight No 8 bars, the
bottom of the footing is 5 foot below final grade, and the soil
weighs 100 lb. /ft3 the allowable soil pressure is 4 w ksf. The
concrete strength is 4,000 psi and the steel is Grade
60.

. Design a square footing for a 16-in. square
interior column with an ultimate dead load = 300
(k) and an ultimate live load = 200
(k). Take fy=60,000 psi,
fc=4000 psi, normal weight, and
qa= 4500 psf. Assume the base of the
footing is 4 (ft.) below grade. Draw the
reinforcement detail also. Check for one way and two way shears
with the support of diagram. With ACI code

Rectangular Combined Footing design

Q1) in footing answer all these parts for isolated square and
rectangular footing:
a) in which part the crack will develop by the soil pressure in
footing. where and why?
b) What the difference between one-way and two way shear in
footing?
c) What is the depth of foundation and what is the depth of
footing?
d) where will be the max moment?
e) what the difference between rectangular and square
footing?
PLEASE ANSWER IN A CLEAR ANSWER AND SUMMARIZE...

Q.2. Design a square footing for a 16-in.
square interior column with an ultimate dead load =
W1 (k) and an ultimate live load =
W2 (k). Take
fy=60,000 psi, fc=4000 psi,
normal weight, and qa= (w) psf. Assume
the base of the footing is h (ft.) below grade.
Draw the reinforcement detail also. Check for one way and two way
shears with the support of
diagram.
Student shall take the data given below in the table against...

Using the formulas and codes provided by ACI 318
1. Design a square interior column footing for a 15-in. square tied
interior column that supports a dead load of 160 kips and live load
of 180 kips. The column is reinforced with eight # 8 bars, also,
the base of the footing is 6 ft below the grade line, the soil
weight is 100 lb/ft3, the concrete weight is 150 lb/ft3, f’c =
4,000 psi, fy = 60,000 psi and...

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