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)...
• derive the equations for tensile stresses in the
bottom of steel for
a. superposion beam
b. composite beam
• tell the differeces between them
• how the RC deck is composited with the steel beam?
The following quesiton pertains to a strain gauge on a
cantilever beam often used in labs.
Are there any advantages in placing a strain gauge at one point
on the beam as opposed to another? In general, what should the
criteria be for choosing locations for strain gauges? Consider
where on the beam the strain will be of highest amplitude or of
highest frequency. What do you want (i.e. what criteria is most
important)?
In order to get the most...
Q3 (a) Figure Q3 (a) shows a cantilever beam which is carry a
load P at point C.
(i) Sketch the deflection curve of the beam.
(ii) Derive the bending moment deflection, slope deflection and
deflection equation at b-b using Double Integration Method.
(iii) Calculate the maximum deflection. Given: L= 10 m, a= 3m, P=
25 kN. EI is constant
(b) Figure Q3 (b) shows a solid steel spindle AB that has a
diameter ??=38 mm. The allowable shearing stress...
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)
A cantilever beam AB is 4 m long and is fully restrained at the
left support A. The beam is loaded with a uniform load of 600 N/m
over a length of 2 m from the free end together with a clockwise
couple of magnitude 4800 N-m at the tip B. Determine the maximum
moment.
a. 3600 N-m
b. 8400 N-m
c. 1200 N-m
d. 5200 N-m
(cantilever beam)
In most practical applications the dimensions do not scale down
by the same amount. Using the formula’s given in class/lectures
derive the overall scaling factor for the mass and deflection if
the width, thickness, and length is scaled down by 10x, 100x, and
5x respectively.
Q6: A
cantilever beam having span ‘L’ m was subjected to a uniformly
distributed load of
magnitude 8 kN/m for a distance of ‘0.6 L’ from the free end and
two concentrated loads one of
magnitude 15 kN at a distance ‘0.25 L’ m from the free end while
the other of magnitude ‘22’ kN at
a distance ‘0.6 L’ m from the free end respectively. It was
observed that the maximum bending
moment acting on the beam is equal...
Q1: A cantilever beam having span ‘L’ m was subjected
to a uniformly distributed load of
magnitude 8 kN/m for a distance of ‘0.6 L’ from the free end and
two concentrated loads one of
magnitude 15 kN at a distance ‘0.25 L’ m from the free end while
the other of magnitude ‘22’ kN at
a distance ‘0.6 L’ m from the free end respectively. It was
observed that the maximum bending
moment acting on the beam is equal...