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MindTap Engineering for Garber/Hoel's Traffic and Highway Engineering, 5th Edition, [Instant Access], 1 term (6 months)
5th Edition
ISBN: 9781305581159
Author: Nicholas J. Garber; Lester A. Hoel
Publisher: Cengage Learning US
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Chapter 20, Problem 13P
Repeat Problem 20-12, with the slab containing temperature steel in the form of welded wire mesh consisting of 0.125 in.2 steel/ft width. The modulus of steel, Es, is
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Develop a signal design and timing for the intersection shown in the figure below. In each case
accommodate both vehicular and pedestrian movements. In general, use the following values
for the problem: pedestrian walking speed = 1 [m/s], vehicle deceleration = 3 [m/s²], driver
reaction time = 1.5 [s], length of vehicle = 6 [m], and level grade = 0. If you need to assume
other variables and parameters to solve this problem clearly state that in your report and
explain the reason.
=
4250
1100
70
1100
80
One-way
'
1
900
Speed limit = 50 [km/h]
Pedestrian = 15 per each crosswalk
Crosswalk widths = 3 [m]
Lane width = 4 [m]
Saturation flow = 1800 [veh/h/lane]
200
pls match the ans key, someone gave me a wrong ans.
SITUATION 3: A simply-supported steel beam 6 m long carries a uniform load of 25 kN/m and an axial
compressive force of 250 kN. Assume both flange and web are compact. The properties of the rolled section are
as follows: Show your complete solution and box only the final answer.
Flange Width, bf = 210 mm
Flange thickness, tf = 24 mm
Overall depth, d=225 mm
Web thickness, tw 14 mm
Yield Strength, Fy=248 Mpa
Radius of Gyration, ry = 54.342 mm
Cb = 1.136
J = 2,097,256 mm²
rts = 62.089 mm
1. Determine the total moment of inertia along x-axis.
2. Determine the total moment of inertia along y-axis
3. What is the allowable axial compressive strength of the beam, in kN?
4. What is the allowable flexural strength of the beam, in kN-m?
1. 108.764 x 106 mm*
2. 37.084 x 106 mm*
3. 982.304 KN
4. 166.723 KN-m
Chapter 20 Solutions
MindTap Engineering for Garber/Hoel's Traffic and Highway Engineering, 5th Edition, [Instant Access], 1 term (6 months)
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Ch. 20 - Prob. 11PCh. 20 - Prob. 12PCh. 20 - Repeat Problem 20-12, with the slab containing...Ch. 20 - Prob. 14PCh. 20 - Prob. 15PCh. 20 - Prob. 16PCh. 20 - Prob. 17PCh. 20 - Prob. 18PCh. 20 - An existing rural 4-lane highway is to be replaced...Ch. 20 - Prob. 20PCh. 20 - Prob. 21PCh. 20 - Prob. 22PCh. 20 - Prob. 23PCh. 20 - Prob. 24PCh. 20 - Prob. 25PCh. 20 - Prob. 26PCh. 20 - Prob. 27P
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- steel designarrow_forwardsteel designarrow_forwardSITUATION 1: A W250 x 131 is used as a column with an unbraced length of 8 m with respect to the x-x axis and 4 m with respect to the y-y axis. Assume an A36 steel member, pin-connected at the top and fixed at the bottom. Assume that the column is pin connected at mid-height. Use NSCP 2001 NSCP. Fy = 250 MPa. Properties of W250 x 131: A = 16,774 mm² d=274 mm bf=262 mm tf=25 mm tw = 16 mm Ix=222.268 x 10 mm ly = 74.505 x 10° mm* Effective Length Factors: Pinned at both ends, K = 1.0 Pinned at one end and fixed at the other, K = 0.8 1. What is the value of the slenderness ratio to be used for the column? 2. What is the nominal axial stress? 3. What is the design axial load? 1. 60.019 2. 206.543 MPa 3. 3118.091 kNarrow_forward
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