Question

Design a wall footing to support a 300 mm reinforced concrete wall with dead load of 292KN/m and live load of 200 KN/m. The bottom of the footing is 1.20 m below the final grade, the soil weighs 15,700 N/m3. The allowable soil pressure is 190 Kpa. fy = 276.5 Mpa, fc’ = 27.6 Mpa.

Answer #1

A reinforced concrete square column (0.26m × 0.26m) is
supported by a square isolated footing (spread footing). The
footing is of plain concrete, and concentrically loaded. An
engineer has suggested 1.25m × 1.25m footing. First, check the
sufficiency of footing dimension. If it is not sufficient, design
the footing in accordance with the requirements of ACI 318M-08 and
using the following available data:
Net allowable soil pressure: net qa = 170 kPa
Column loads (unfactored): D = 160 kN L...

CE Board May 2012
A 450 mm square interior column carries a dead load of 825 KN
and a live load of 668 KN. A rectangular footing is required to
carry the column loads such that the length of the long side must
be equal to twice the width of the short side. Assume base of
footing is 1.5 m below the ground surface. Allowable bearing
pressure of soil is 15.74 KN/m3 and that of concrete is 23.5 KN/m3.
Use...

Design the shown beam; if it is given that
Dead load, wd = 15 kN/m
Live load, wL = 10 kN/m
Beam breadth b = 300 mm
Beam height, h = ℓ/21 mm
where; Span, ℓ = 9; and S
is the student serial number according to the following table. Use;
fc = 35 Mpa and fy = 420
Mpa.

In
attempting to derive a rule of thumb for the thickness of a wall
footing, it can be shown that h = a Pu-b, where h = required
thickness of wall footing in mm, Pu = ultimate load in kN/m. If the
allowable bearing capacity of soil = 248 kN/m2, f'c =28 MPa and
average load factor = 1.37, determine the factor a in the above
rule of thumb.

A rectangular beam having b=300 mm and d=575 mm, spans 5.5 m
face to face of simple
supports. It is reinforced for flexure with 4φ32 bars that continue
uninterrupted to the ends of
the span. It is to carry a service dead load wD=30 kN/m (including
self-weight) and a service live
load =45 kN/m both uniformly distributed along the span. Design the
shear reinforcement using
φ10 vertical U stirrups. Use the equation (a) for Vc. Material
strengths are fc’=22 and...

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.

Determine the allowable design load for a column resting on a
rectangular footing 2 m by 9 m, buried to a depth of 2 m in clay
soil with a unit weight of 18.5 kN/m3, internal friction
of 39 degrees, a drained cohesion of 36 kPa and undrained shear
strength of 119 kPa. Assume the short-term condition governs, water
table is at the ground surface and use a factor of safety of 3.
Provide your answer in kN as a...

Reinforced Concrete
By
using method 3 of ACI code, design a corner slab panel ( 4m x 5.7m
) of a frame building . Use f'c=21MPa, fy=276 MPa, γc=24 kN/m3 and
WL=7 kN/m2 .
Draw
the final design.
pls
quickly

A reinforced concrete beam is constructed with Grade 30 concrete
which has a cross section of 450 mm x 660 mm (b = 450 mm and D =
660 mm). The length of the beam is 5 m. The elastic modulus of the
concrete is 32.8 GPa. A uniformly distributed live load of 23 kN/m
is acting on the beam. Determine (a) the design bending moment on
this beam for strength limit state, (b) modular ratio assuming Es =
200...

1.) The pile load test data of a 300 mm diameter and 15 m long
pile is as
follows . Design a pile group system to carry a load of 4000 kN.
Compute
the settlement of the pile group for the designed load.
Load in kN
0
500
1000
1500
2000
2500
Settlement in mm
0
8.5
16.5
25.5
38.0
60.0
2.) Design a retaining wall for a 8 m sandy soil backfill with unit
weight as
17.5...

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