EBK INTRODUCTION TO SUSTAINABLE CIVIL E
1st Edition
ISBN: 9780134037318
Author: Neumann
Publisher: YUZU
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Chapter 2, Problem 1EDDS
To determine
Explain how to characterize the NSPE definition of sustainability.
Explain on what the philosophy of sustainability relies upon, and also explain its impact on civil engineering projects that have sustainability as a design goal.
Expert Solution & Answer
Explanation of Solution
The NSPE (National Society of Professional Engineers) defines sustainability as “the challenge of satisfying human needs related to industrial products, natural resources, food, energy, shelter, transportation, and effective management of waste, and also conserve and protect environment quality and natural resources base necessary for future development.
According to NSPE, sustainability is characterized by integration of development and conservation as well as satisfying basic human needs.
The philosophy of sustainability mainly depends upon the conservation of the available resources. In the case of civil engineering, sustainability is referred to as the conservation of construction material in an environment-friendly manner.
In construction projects such as roads, buildings, and sewage treatment plant, the design and construction should be done in such a way that its impact on the environment is minimum and it also reduces global warming.
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4
F3
Existing Flocculation Basin Design Parameters at 22.5 MGD:
A) # of Basins: 5
B) # of Stages per Basin: 2
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F) Theoretical Unit Detention Time: 25.9 minutes
G) Flow through Velocity (Q): 1.16 ft/min
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C) If not, determine the number of additional flocculation basins needed to
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a) Ignore this bullet point
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A1.4- Determine the factored moment resistance for the flanged beam (simply supported) shown in Figure 4.
Given: Beam span L = 8m
fc = 25MPa
fy=400MPa
As = 3-35M
*350*
mm
1.5 m
Figure 4
*350*
mm
-60mm
A2.3- a simply supported reinforced concrete beam of rectangular cross-section is shown in Figure 3. The beam
supports a uniform dead load of 20 kN/m (excluding the beam self-weight) and a uniform live load of 20 kN/m.
The beam width is restricted to 400 mm. The maximum aggregate size is 20 mm. We are using 10M bars for
stirrups and 25M bars for tension steel. Concrete is type N with f'c = 35 MPa and fy = 400 MPa. The beam needs
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Design the beam for the given load, considering the reinforcement ratio p < 0.5 pb
Figure 3
WDL = 20 kN/m
WLL= 20 kN/m
8.0 m
Chapter 2 Solutions
EBK INTRODUCTION TO SUSTAINABLE CIVIL E
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