(1) Select the lightest, rectangular Douglas fir section for the
cantilever beam of15- ft span that...
(1) Select the lightest, rectangular Douglas fir section for the
cantilever beam of15- ft span that will carry a uniform load of 450
lb/ft. [Hint: V max = wL; Mmax = wL2/2]
1. A 3.5 m clear span singly reinforced cantilever
beam has a rectangular section of b=300mm and D=500
mm is reinforced with 2 bars of 32 mm diameter and 1 bar of 25mm
diameter in the tension zone. The
live load taken by the beam is 19 kN/m. Check if the beam is safe
to carry the above load . Use M25
and Fe500.
1. A 3.5 m clear span singly reinforced cantilever
beam has a rectangular section of b=300mm and D=500
mm is reinforced with 2 bars of 32 mm diameter and 1 bar of 25mm
diameter in the tension zone. The
live load taken by the beam is 19 kN/m. Check if the beam is safe
to carry the above load . Use M25
and Fe500.
A 12 in. x 18 in. rectangular beam has an effective span of 20
ft. A dead load of 1500 lb/ft (includes self weight) and a live
load of 4000 lb/ft is applied to the beam. The concrete and steel
strengths are 4000 psi and 60000 psi respectively. Design and
detail the shear reinforcement for the beam. Assume d is 2 inches
less than h
Select a 12 ft cantilever beam with p = 0.012, to
support a dead load of 2k/f (including self weight) and Live load
of 3 k/ft. fy= 60000 psi, fc'= 3500 psi (hint your answer should be
Width = XXXX, Effective depth= XXXXX, Area of reinforcement =
XXXXX)
Design a rectangular reinforced concrete beam for a simple span
of 35 ft. Uniform service loads are 1.0 kip/ft dead load (excluding
the self-weight of the beam) and 1.2 kips/ft live load. Use
f′c=4,000 psi and fy=60,000 psi. Sketch your design.
Design a rectangular reinforced concrete beam for a simple span
of 32 ft. Uniform service loads are 1.5 kips/ft dead load and 2.0
kips/ft live load. Assuming that the total depth h is not to exceed
32 in. and that there is no limitation on the width b. Use f′c =
3000 psi and fy = 60,000 psi. Sketch your design
Select the lightest W section to serve as an axially loaded
column 28 ft long, in a braced frame, with additional lateral
support in the weak direction at mid-height. The load to be carried
is 65 kips dead load and 150 kips live load. Assume the top and
bottom of the column are hinged.
a) Use A992 and indicate first and second choices
b) Use A572 Grade 60, indicating first and second choices
A beam extends over a span of 7.3 m and an overhang (cantilever)
to the right of the right support of 3 m (that is, the total length
of the beam is 10.3 m.) The beam supports a service dead load of 18
t/m that does not include self-weight, and a service live load of
10 t/m. Assume the connection between the beam and the support is a
simple pin or roller.
. If self-weight is 1.512 , the height(h)...