Introduction to Civil and Enviornmental Engineering
CIVIL ENGI 12100

Fall 2015
Carnegie Mellon University
Department of Civil and Environmental Engineering
12100 INTRODUCTION TO CIVIL AND ENVIRONMENTAL ENGINEERING
Fall 2015
Course Description: Introduction to selected subfields in the discipline, such as structural engineering, con
Introduction to Civil and Enviornmental Engineering
CIVIL ENGI 12100

Fall 2013
I intro to CEEwHandout I Truss Analysis I KBG I 2/24/17 I 1/11 I
/\/\/\
II: Ilillil llli Elrmjuby
.Figure 1: Warren Truss: A Warren truss is made up of alternating equilateral triangles.
cfw_Figure 2: Pratt Truss: A Pratt truss adds vertical members, and
Introduction to Civil and Enviornmental Engineering
CIVIL ENGI 12100

Fall 2013
I Intro to CEE  Handout I Rigid Body Equilibrium I Kelvin Gregory I 2/9/17 I 1/7 I  Intro to GEEHandout  Rigid Body Equilibrium  Kelvin Gregory  2/9/17  2/7 
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Introduction to Civil and Enviornmental Engineering
CIVIL ENGI 12100

Fall 2013
I Intro to CEE Handout I Bending Stress & Beam Design I Kelvin Gregory I 2/13/17 I 1/7 I
strUCtural  , How big
he beam Ine d to be to e strong enugh? Struct ral enginEe 5 answer thi question b
  W ' I measurest e: intensity
. IpsiII kip/ian
_ _.c
Introduction to Civil and Enviornmental Engineering
CIVIL ENGI 12100

Fall 2013
Intro _to CEE Handout 28 I Arrivais, Departures, and Queuing I Name:  _ Date: I 1/2 I
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Introduction to Civil and Enviornmental Engineering
CIVIL ENGI 12100

Fall 2013
Intro to CEE Handout 1 I Standard Production Rate I initials: I Date: I 1/4 I
_I '  ' ST NDARD PRODU non RATE 77 I. _ I
he standard pnoductlon rate (SPR) measures t _e_ quantity 0L aterlal delwereh _ng unIt tIme assummg it Is aI
onstant flow _oI materIa
Introduction to Civil and Enviornmental Engineering
CIVIL ENGI 12100

Fall 2013
Intro to CEE Handout 2A
Scheduling, Precedence, Gantt Charts
Name:
Date:
1/6
Project planning and scheduling applies to many types of projects, for example:
1.
2.
3.
4.
The typical approach to project planning and scheduling is to divide the project into
Introduction to Civil and Enviornmental Engineering
CIVIL ENGI 12100

Fall 2013
I Handout 4 Intro to CEE Notes I Vectors I I 1/5 I
9r$ acting at a 0mmon POIrIt_._. ,
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tion Iof [_Ihesis tip of _resulta IIt Ilector j
"Figure 1: Vector Addition
.LengtII of. .a vector 5. preportion I to Its maghltude
Introduction to Civil and Enviornmental Engineering
CIVIL ENGI 12100

Fall 2013
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Introduction to Civil and Enviornmental Engineering
CIVIL ENGI 12100

Fall 2015
12100 Intro to CEE
HW 8: Reaeration, Exponential Growth and
Decay
CS
11/20/2015
1/3
1. The DO content in a pond has a saturation concentration of 8.5 mg/L. The DO content in the pond has been
partially depleted, and measures 3.1 mg/L at the time of your
Introduction to Civil and Enviornmental Engineering
CIVIL ENGI 12100

Fall 2015
12100 Introduction to Civil and Environmental Engineering
Homework 1.
Fall 2015
Due: 9 September 2015 2:30 PM
Show all work
1. Let us explore the effect of different compounding rates and numbers of periods. Suppose I invest
$1,000 in my local bank.
a. H
Introduction to Civil and Enviornmental Engineering
CIVIL ENGI 12100

Fall 2015
12100
Introduction to Civil and Environmental Engineering (Updated 8/25/15)
Date
Topic
Aug 31
Intro to CEE Subfields
Sep 2
Engineering economics, interest (discount) rates:
PM1 6.16.6
Lifelong learning: Probability concepts and the discussion of risk,
r
Introduction to Civil and Enviornmental Engineering
CIVIL ENGI 12100

Fall 2015
12100
Homework Preparation Guide
Fall 2015
All HW must be submitted on engineering computation paper. You can purchase green computation paper in
pads at the university store or anywhere you choose.
Solution sheets should be singlesided and stapled. For
Introduction to Civil and Enviornmental Engineering
CIVIL ENGI 12100

Fall 2015
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Introduction to Civil and Enviornmental Engineering
CIVIL ENGI 12100

Fall 2015
12100 Intro to CEE
Probability and the Normal Distribution
CS
10/21/2015
1/3
For all the problems, in addition to doing the required calculations, shade in the area on the actual distribution
that represents the probability you are calculating, and shade
Introduction to Civil and Enviornmental Engineering
CIVIL ENGI 12100

Fall 2013
I Intro to CEE  Handout I I Internal Bending Moment I KelVin Gregory I 2/10/17 I 1/6 I
he first ste IiInI Ithe deslg of a struqt r5II 5r struct IIIrIIaII member 55 I55 determine I5h5 suppdrt
orces IIIor re ctIons T Id5term ' '
the
upports, 5IIjII Iating
Introduction to Civil and Enviornmental Engineering
CIVIL ENGI 12100

Fall 2013
Intro to CEE Handout 2A I Scheduling, Precedence, Gantt Charts I Name: Date: I 1/6 I
reject planning and scheduilngiapel_i9_t9_.mm typeset prqiecoIsJ. i9! _?WPIEF,I or I . _
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Introduction to Civil and Enviornmental Engineering
CIVIL ENGI 12100

Fall 2013
I Intro to CEE Handout
Probability I
aked ecgisiIon
I
KBG 
brella?
3/3/17  1/16 
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um wind 5p:
uricertamty,
ome A rain om \IarIabIe n take ofn
.iIIOWeIIIer, t eprqbabilitE of a paIrtiiCI
III"_lt PO rter Ha I.
that Is,
Introduction to Civil and Enviornmental Engineering
CIVIL ENGI 12100

Fall 2013
Intro to CEE Homework
Truss Analysis
KBG
2/24/17
1/4
1. Determine the bar forces. Note that the reactions at A and B are provided. Show the results on the sketch below,
and include that as the first page of your solution for this truss. (DE = 10 k (T), AF
Introduction to Civil and Enviornmental Engineering
CIVIL ENGI 12100

Fall 2013
Intro to CEE Homework
Bending Stress and Beam Design
KBG
2/24/17
1/3
1. Determine the maximum bending stress (in psi) in the beam. (A y = 541.2 lb., M max = 2706 lb.ft.)
P1
P2
L1
L2
L
A
L3
B
P1 = 600 lb.
P2 = 500 lb.
L1 = 5 ft.
L3 = 4 ft.
L2 = 8 ft.
d
b
Introduction to Civil and Enviornmental Engineering
CIVIL ENGI 12100

Fall 2013
Intro to CEE Homework 2
Vectors, Equilibrium, Reactions
Kelvin Gregory
2/9/17
1/4
A freebody diagram is required for problems 3 7, and any equilibrium problem. Look at the grading sheet to see how
much value this part of the problem has.
1. Determine the
Introduction to Civil and Enviornmental Engineering
CIVIL ENGI 12100

Fall 2013
Bridge Over Troubled Water
12100 Introduction to Civil and Environmental Engineering
Department of Civil and Environmental Engineering
Carnegie Mellon University
Pittsburgh, PA 15213
March 3, 2017
12100 Introduction to Civil and Environmental Engineerin
Introduction to Civil and Enviornmental Engineering
CIVIL ENGI 12100

Fall 2013
Engineering Economics
Prof. Kelvin Gregory
[email protected]
January 20, 2017
Outline
Why is engineering economics important?
Some formulas
Some examples
Conclusion
Field Day (Extra Credit)
CPDC
The Role of Engineers in the Public Sector
Engineers must make
Introduction to Civil and Enviornmental Engineering
CIVIL ENGI 12100

Fall 2013
Intro to CEE Handout
Truss Analysis
KBG
2/22/17
1/11
Trusses are structures that consist of (usually) straight members, connected at joints and
designed so that the structure behaves as a single object
Trusses consist of straight members (with some except
Introduction to Civil and Enviornmental Engineering
CIVIL ENGI 12100

Fall 2013
Course Syllabus for 12100
Introduction to Civil & Environmental
Engineering
Spring 2017
Professor Kelvin Gregory
GENERAL INFORMATION
Meeting
Room
Instructor
M,F 2:303:20, W 2:304:20
Monday & Friday in BH 136A and Wednesday in PH 107E (Tung Au Lab)
Prof
Introduction to Civil and Enviornmental Engineering
CIVIL ENGI 12100

Fall 2013
Project 2
Structural Mechanics
A Bridge over Troubled Waters
ABoTW
Prof. Kelvin Gregory
[email protected]
March 01, 2017
Project Objectives
You need to build a truss that can support
a 200 lb. load with a specified level of
safety.
Your truss must fit in t
Introduction to Civil and Enviornmental Engineering
CIVIL ENGI 12100

Fall 2013
Site Information and Constraints
The following information is the necessary material costs, labor rates, environmental impact
costs, and site information that will affect your companys cost and schedule. All groups share
this general information and have
Introduction to Civil and Enviornmental Engineering
CIVIL ENGI 12100

Fall 2013
Intro to CEE Handout
Bending Stress & Beam Design
Kelvin Gregory 2/13/17
1/7
A structural engineer designing a beam is attempting to answer the question, How big does
the beam need to be to be strong enough? Structural engineers answer this question by us
Introduction to Civil and Enviornmental Engineering
CIVIL ENGI 12100

Fall 2013
12100 Introduction to Civil and Environmental Engineering
Homework 1.
Due Wednesday Jan 25 by 2:30pm
(Show all work on engineering paper)
1.
List the five types of engineering economic decisions:
2. Let us explore the effect of different compounding rate
Introduction to Civil and Enviornmental Engineering
CIVIL ENGI 12100

Fall 2013
Intro to CEE Handout
Rigid Body Equilibrium
Kelvin Gregory 2/9/17
1/7
When solving rigid body equilibrium problems, the unknown forces required to satisfy
equilibrium are called reaction forces. These forces constrain the rigid body so that under the
acti
Introduction to Civil and Enviornmental Engineering
CIVIL ENGI 12100

Fall 2013
12100 Intro to CEE Sense of Forces in Truss Anal sis KBG 2/24/2017 1/3
ers that aregi fsioh Can be .
thenode 15m tenjsion 12100 Intro to CEE Sense of Forces in Truss Analysis KBG 2/24/2017 3/3
Introduction to Civil and Enviornmental Engineering
CIVIL ENGI 12100

Fall 2013
I Intro to CEEHandout I Probability I KBG I 3/6/17 I 1/4 I
Distribution of Ruler Lengths
!I L2
10135 11.53 11.7r 11.88 12 05 12.23 12.4 12.57
Ruler Lengths (in.) Intro to CEE Handout
Standard Normal Distribution
0.3
0.2
0.1
04 3 2 l 0 1 2 3 4
g(Z)
Probabi