Principles of Highway Engineering and Traffic Analysi (NEW!!)
6th Edition
ISBN: 9781119305026
Author: Fred L. Mannering, Scott S. Washburn
Publisher: WILEY
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Question
Chapter 3, Problem 54P
To determine
The design speed used for curve.
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Find: ftop and fbottom of (initial stage, construction phase, final stage)
+150+
Assignment
SW+ SLAB
SDL =
250
150
- 3.3 kPa
укра
LL = 3 kPa
3
୪
8c = 23.6 kN/m²
P = 3000 KN
loss,
=
9%
Coss = 20%
LBEAM = 9m
COMPUTE AND DRAW THE STESS DIAGRAM (TRIBUTARY WIDTH=
600m
350mm
FIND:
f TOP & BOTTOM
fe = 35Mpa
100mm f'c = 42.5 MPa
218
5m)
EC = 4700 √ fc
(MPa)
(Initial, Const. phase, final stage)
Design a cantilevered rectangular RC beam subjected to a maximum factored load bending
moment, M u = 260 kip-ft. The clear height requirements for the building limits the total beam depth
to 22 in. Determine the beam width and the steel design. Use f c’ = 6,000 psi, f y = 40,000 psi. The
grade beam is cast against earth and permanently in contact with soil.
a. Assume an initial steel ratio or beam width.
b. Set up the bending design equation.
c. Solve for either the steel ratio or the beam width.
d. Design needed steel.
2
Hint: Knowing “h”, one can estimate the “d” value. So, two remaining variables can be estimated.
There are many acceptable solutions. You can either assume a steel ration and solve for width “b”,
or assume a beam width “b” and solve for the steel ratio. Remember that a good beam aspect ratio
(d/b) is approximately 2.0
Chapter 3 Solutions
Principles of Highway Engineering and Traffic Analysi (NEW!!)
Ch. 3 - Prob. 1PCh. 3 - Prob. 2PCh. 3 - Prob. 3PCh. 3 - Prob. 4PCh. 3 - Prob. 5PCh. 3 - Prob. 6PCh. 3 - Prob. 7PCh. 3 - Prob. 8PCh. 3 - Prob. 9PCh. 3 - Prob. 10P
Ch. 3 - Prob. 11PCh. 3 - Prob. 12PCh. 3 - Prob. 13PCh. 3 - Prob. 14PCh. 3 - Prob. 15PCh. 3 - Prob. 16PCh. 3 - Prob. 17PCh. 3 - Prob. 18PCh. 3 - Prob. 19PCh. 3 - Prob. 20PCh. 3 - Prob. 21PCh. 3 - Prob. 22PCh. 3 - Prob. 23PCh. 3 - Prob. 24PCh. 3 - Prob. 25PCh. 3 - Prob. 26PCh. 3 - Prob. 27PCh. 3 - Prob. 28PCh. 3 - Prob. 29PCh. 3 - Prob. 30PCh. 3 - Prob. 31PCh. 3 - Prob. 32PCh. 3 - Prob. 33PCh. 3 - Prob. 34PCh. 3 - Prob. 35PCh. 3 - Prob. 36PCh. 3 - Prob. 37PCh. 3 - Prob. 38PCh. 3 - Prob. 39PCh. 3 - Prob. 40PCh. 3 - Prob. 41PCh. 3 - Prob. 42PCh. 3 - Prob. 43PCh. 3 - Prob. 44PCh. 3 - Prob. 45PCh. 3 - Prob. 46PCh. 3 - Prob. 47PCh. 3 - Prob. 48PCh. 3 - Prob. 49PCh. 3 - Prob. 50PCh. 3 - Prob. 51PCh. 3 - Prob. 52PCh. 3 - Prob. 53PCh. 3 - Prob. 54PCh. 3 - Prob. 55PCh. 3 - Prob. 56PCh. 3 - Prob. 57PCh. 3 - Prob. 58PCh. 3 - Prob. 59PCh. 3 - Prob. 60PCh. 3 - Prob. 61PCh. 3 - Prob. 62PCh. 3 - Prob. 63PCh. 3 - Prob. 64PCh. 3 - Prob. 65PCh. 3 - Prob. 66PCh. 3 - Prob. 67P
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