PRIN.OF HIGHWAY ENGINEERING&TRAFFIC ANA.
7th Edition
ISBN: 9781119610526
Author: Mannering
Publisher: WILEY
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Chapter 3, Problem 27P
To determine
The lowest possible elevation of the bottom of the overpass structure to ensure sufficient stopping sight distance at
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When using a work breakdown structure (WBS) for a project why it is necessary to break down activities?
As shown in the figure below, a 1.5 m × 1.5 m footing is
carrying a 400 kN load.
P
Depth (m)
0.0
1.0
2.0
Df
Groundwater
table
(Yw = 9.81 kN/m³)
3.5
Yt = 16.5 kN/m³
E = 9,000 kPa
Sandy
soil
Ysat 17.5 kN/m³
E = 15,000 kPa
6.0
Stiff Clay
(OCR = 2)
Bedrock
Ysat 18.0 kN/m³
eo = 0.8
Cc = 0.15, Cr = 0.02
Eu =40,000 kPa
(a) Estimate the immediate settlement beneath the center of the
footing. Assuming that Poisson's ratios of sand and soft clay are
0.3 and 0.5, respectively. Use numerical integration approach.
For the calculations, use layers (below the bottom of the footing)
of thicknesses: 1 m; 1.5 m, and 2.5 m.
(b) Determine the primary consolidation settlement beneath the
center of the footing.
(c) Redo Part (b) if OCR=1.1.
Note: Use the 2:1 method to determine the stress increase below
the footing. For parts (b) and (c), use the one-dimensional
consolidation theory.
Consider the cross-sections illustrated in the next slides. Implement a
cross-sectional analysis based on a layered discretisation of the cross-
section as required at the following.
1) Develop the implementation of an analysis to estimate the nonlinear
response of the composite steel-concrete section, of the reinforced
concrete section and of the steel section shown in following slides
(using material nonlinear models provided in the support files).
Provide the details of the numerical implementation with clear
explanations of all steps.
Hint: the implementation can be done in Excel.
2) Discuss how the 3 cross-sections (shown in the next slides) compare
to each other in terms of embodied carbon under the condition that
the cross-sections possess the same nominal moment capacity (i.e. the
peak moment achieved in the moment-curvature diagram).
The discussion should include at least 2 sets of the sections (each set
contains one composite section, one reinforced concrete section and
one…
Chapter 3 Solutions
PRIN.OF HIGHWAY ENGINEERING&TRAFFIC ANA.
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
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