Question

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 fy=420 MPa

Answer #1

a
rectangular beam having dimensions: b=300mm and d=550mm, spans 6m
face to face of simple supports. it is reinforced for flexure with
3D36mm bars that continue uninterrupted to the ends of the soan. it
is to carry a service dead load of 23.8 KN/m (including
self-weight) and a service lice load equal to 47.6 KN/m, both
uniformly distributed along the span. use fc’=27.6 Mpa and fy=414.7
Mpa. Normal weight concrete will be used and diameter of stirrup
are 10mm.
1.using...

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.

A Reinforced beam of size 350 * 630 mm, with effective
depth of 560 mm, having concrete of Grade C-22 and steel of Grade
420 is to be used. Factored shear force at a distance of 1.0 m from
the face of support is 400 KN. Concrete strength in shear is
assumed as 150 KN. Find the maximum spacing of the stirrups if two
legged stirrup of #13 is used.

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.

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.

A rectangular, tension-reinforced beam is to be designed for
dead load of 500 lb/ft plus
self-weight and service live load of 1200 lb/ft, with a 22 ft
simple span. Material strengths will be fy =
60 ksi and fc・= 3 ksi for steel and concrete, respectively. The
total beam depth must not exceed 16
in. Calculate the required beam width and tensile steel
requirement, using a reinforcement
ratio of 0.60 ρ0.005 . Use ACI load factors and strength reduction
factors....

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