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Solid Waste Engineering
3rd Edition
ISBN: 9781305635203
Author: Worrell, William A.
Publisher: Cengage Learning,
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Chapter 9, Problem 9.7P
To determine
The argument to put the collection agreement out to the bid and the argument not to put it out to the bid.
Expert Solution & Answer
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Students have asked these similar questions
A box beam is fabricated from two
plywood webs that are secured to
lumber boards at its top and bottom
flanges. The beam supports a
concentrated load of P = 4100 lb at the
center of a 13-ft span. Bolts (3/8-in.
diameter) connect the plywood webs
and the lumber flanges at a spacing of s
=
9 in. along the span. Supports A and
C can be idealized as a pin and a roller,
respectively. [w = 4.5 in., b = 0.25 in., t
= 5 in., h = 17 in.]
B
Determine the maximum horizontal
shear stress in the plywood webs.
Determine the average shear stress in
the bolts.
Determine the maximum bending stress
in the lumber flanges.
A cantilever flexural member is
fabricated by bolting two identical C-
section steel shapes back to back as
shown in the figure. The beam has a
span of L = 1300 mm and supports a
concentrated load of P = 800 N. The
cross-sectional dimensions of the built-
up shape are shown in the figure.
Assume the section has a constant
thickness of t = 2.5 mm. Bolts of 3.5
mm diameter are installed at intervals of
s = 65 mm.[b = 100 mm, a = 25 mm]
b
T
Determine the shear flow in the
sections connected by the fasteners.
Calculate the shear force in each bolt.
Calculate the shear stress in the bolts.
Five wood boards are bolted together to
form the built-up beam shown in the
figure. The beam is subjected to a
shear force of V = 14 kips. Each bolt
has a shear strength of V bolt = 6 kips.
[h₁4 in., t₁ = 0.75 in., h₂ = 6.5 in., t₂ =
1.25 in.]
hi/2
h/2
h2
h:/2
hi/2
+
h2
Determine the moment of inertia of the
section.
Determine the shear flow in the section
connected by fasteners.
Determine the maximum allowable
spacing of the bolts.
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- Two built-up beams shown in the figure below have the same dimensions and are connected by the same types of nails with the same spacing. Which beam could carry more shear force if the controlling factor is the shear flow in the fasteners? Nails Beam (1) Z Beam (2) Beam (2) Beam (1) Both are the same Cannot answer without knowing the shear diagram Cannot answer without knowing the modulus of rigidity Nailsarrow_forwardTwo built-up beams shown in the figure below have the same dimensions and are connected by the same types of nails with the same spacing. Which beam could carry more shear force if the controlling factor is the shear flow in the fasteners? Nails Beam (1) Beam (2) Cannot answer without knowing the shear diagram Beam (1) Cannot answer without knowing the modulus of Nailsarrow_forward8-51. Determine the horizontal displacement at C. Take E = 29(10³) ksi, I = 150 in for each member. Use the method of virtual work. 8ft 10 ft Barrow_forward
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- Page 3 3.5) Using the Method of Components, determine the magnitude, the direction, and the sense of the resultant for the coplanar concurrent force system shown below. Y 76 lbs 10 kips 4 3 0 Y 12 kips 5 12 > x 60 lbsarrow_forwardREINFORCED CONCRETE DESIGNFLEXURAL ANALYSIS OF BEAMS (CRACKED SECTION)Solution must be completeUse ballpen/inkpenAnswer in two decimal placesBox your final answerarrow_forwardA vertical parabolic curve has a back tangent of -5% and a forward tangent of +3% intersecting at station 1 + 240 at an elevation of 100m. If the stationing of PC is at 1 + 120, Evaluate the elevation at the third quarter point.arrow_forward
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