how ?to deal with this assignment about structural mechanics

SCHOOL OF CIVIL ENGINEERING

CIVL2201 STRUCTURAL MECHANICS 2012: ASSIGNMENT 1
This assignment is worth 5 % of the total mark.
SUBMISSION REQUIREMENTS

Assignment is due to your tutor at the start of your tutorial (either 11 am or 2 pm) on Friday 20 April
2012. The hard copy of the assignment should include your working and answers for question 1, plus a
printout of your email to Prof Smith from question 2. Please submit stapled sheets without any manilla
folders or slip in sheet protectors etc, and include the assignment cover sheet.
Your email to Prof Smith (Q2) should be sent by 11 am on Friday 20 April 2012.

? Students are always encouraged to help each other with studying, however copying solutions from
anyone, where you have little or no academic input is not acceptable.
? Any form of copying and pasting electronic data for question 2 is not acceptable. The lecturer will have
electronic copies of all submissions, so it will be very easy to detect copying.

1)

Consider the beam below. The exact dimensions and values of the loads depend on your tutorial
Draw the bending moment diagram (BMD) and shear force diagram (SFD), clearly indicating the values of V
&amp; M at A, B &amp; C, and the end of the UDL zone. Also show the location(s) and value(s) of maximum sagging
and/or hogging moment.

a

P
w

C

B

A
L1

Group
2A
2B
2C
2D
2E
2F
11A
11B
11C
11D
11E
11F

L2
L1
(mm)
(mm)
a (mm) w (kN/m)
P (kN)
6000
2000
3000
1
2
4000
1000
2000
2
3
3000
1000
2000
2
2
6000
2000
4000
1
2
4000
2000
1000
1
1
3000
1000
1000
2
1
6000
2000
2000
1
2
4000
2000
2000
3
1
3000
1000
1000
3
2
6000
1000
1000
3
2
4000
1000
2000
2
2
3000
1000
1000
1
1

L2

2)

Download the Report on the Collapse of the I-35W Highway Bridge from the Blackboard
portion and the conclusions and recommendations. Based on your tutorial group, you are required
to write a 200 – 300 word statement explaining what you have learned from reading your assigned
section. Directly quoting from the report would not be deemed suitable.

Group
2A
2B
2C
2D
2E
2F
11A
11B
11C
11D
11E
11F

Students should send an email to Prof Smith (email address below). Note different email
addresses apply for each group and the plus sign ?+? in the address is correct.
Include a printed copy of the email in the assignment handed in to the tutor.
Prof Smith does not accept attachments of any kind and the email must be readable as
plain text.
An appropriate level of professionalism and netiquette is expected in your email to Prof
Smith.
Prof Smith is very pedantic, and students should first configure their email to show their
name
as
the
sender
correctly
using
the
instructions
at
Prof Smith will send you an acknowledgment receipt by email.
Note that if you send Prof Smith more than one email he will only look at the first one
Students should first send a test email to themselves or a friend to ensure that all the
conditions are met.
Topic
Bridge description (pp5?14)
Damage (pp16?21)
Renovations (pp22?24)
Fatigue (pp54 ?61)
Design (pp87?92)
Collapse (pp119?123)
Other scenarios (pp123?127)
Inspections (pp140?148)
Conclusions (pp149?152)
Recommendations (pp153?156)
Bridge description (pp5?14)
Collapse (pp119?123)

profjonathonsmith+2A@gmail.com
profjonathonsmith+2B@gmail.com
profjonathonsmith+2C@gmail.com
profjonathonsmith+2D@gmail.com
profjonathonsmith+2E@gmail.com
profjonathonsmith+2F@gmail.com
profjonathonsmith+11A@gmail.com
profjonathonsmith+11B@gmail.com
profjonathonsmith+11C@gmail.com
profjonathonsmith+11D@gmail.com
profjonathonsmith+11E@gmail.com
profjonathonsmith+11F@gmail.com

Question 3 applies to MPE students in CIVL5502 only. Undergraduate students in CIVL2201 do
not attempt this question. MPE students also have to do Q1 &amp; Q2.
3)

Consider the overhanging beam below. The total length of the beam is L, but the internal
span is length kL, where k is some value less than 1.
o Sketch (without specific calculations) the bending moment diagram, comparing it to the
BMD of a standard simply supported beam of length L.
o By specifically referring to the bending moment diagram, discuss (in no more than one
page), how changing the value of k would affect the behaviour and design of a beam.

L
w

B

A
kL

Tim Wilkinson
Tim Wilkinson
Senior Lecturer in Civil Engineering

C