Design Assignment | EGB375 | Page 1 of 6

Faculty of Engineering
Assessment Task Description

Design Assignment
EGB375 Design of Concrete Structures

Assessment # #1 in EGB375
Unit Learning
Outcomes Assessed
ULO1 Determine the bending and shear capacities of reinforced concrete members
ULO2 Assess whether reinforced concrete beams satisfy the ultimate and serviceability
limit states as per AS3600 (ultimate capacity, crack width, cracks spacing, deflection).
ULO3 Assess risks to safety in design
ULO4 Write well laid out design reports
Task Weight (%) 30
Due Date 11:59PM on 27 May 2022
Nature of Submission Individual Scanned Copy (Neatly Handwritten) or Typed submitted via. Turnitin
Overview
The following scenario is formulated to provide you a chance to apply the theories introduced in the concrete
structures subject to design a simple structural element and develop an appreciation of overall structural design
process.

Scenario
A two-storey house in Sunshine Coast, QLD has been planned to have a terrace over garage which is supported on
a concrete beam and two columns at front of the garage as shown in Figure 1. The principal engineer has
proposed to use 32MPa concrete (unit weight 25kN/m3) for this building. You are required to analyse and design
RC Beam carrying the load of terrace of this building by solving Tasks 1 to 21. Include references from Australian
Concrete Standards (AS3600-2018) where possible. The required design data is given below.
• Proposed beam size: b = 250mm, D = 400mm
• Clear span of the beam = 5.75m
• Proposed column cross-section = 250mm × 250mm
• Uniform permanent dead load of terrace slab onto the beam = 6/
• Uniform permanent dead load of terrace fall, and flooring onto the beam = 3/
• Uniform permanent dead load of safety railing onto the beam = 1/
• Uniform imposed live load onto the beam = 2.5/
• Clear cover to reinforcement = 30mm















Figure 1: House Elevation (https://www.rawsonhomes.com.au/)
RC Beam
Columns
Clear Span
Design Assignment | EGB375 | Page 2 of 6

What you will do
In the conduct of your design assignment, you will be required to complete the following Tasks 1 to 21:
1. Draw the beam elevation schematically supported on columns with span length and the loading on top.
2. Determine the self-weight of the beam in /
3. Determine the magnitude of the ultimate design load w*
4. Determine the design bending moment M*
5. Determine the short-term bending moment ∗
6. Determine the long-term bending moment ∗
7. Determine the area of steel required for the calculated M*
(TIP: Find considering singly reinforced beam using ∅ = ∗. If this steel area does not satisfy the
ductility requirements of AS3600, design a doubly reinforced beam keeping the same and provide
compression reinforcement for which the ductility and moment demand are satisfied)
8. Determine the gross second moment of area of the cross-section
9. Determine the cracking moment ,
10. Determine the cracked second moment of area of the cross-section and comment whether it is needed for
the serviceability design.
11. Determine the steel stresses at serviceability stage.
12. Check if the steel stresses in (11) satisfy the allowable stresses corresponding to crack width of 0.3mm in
consistence with Cl. 8.6.2.2, AS3600 (2018).
13. Determine the crack spacing.
14. Determine the crack width and check if it is lower than 0.3mm. If not, why not and how will you ensure crack
width does not exceed 0.3mm?
15. Select the allowable limit of deflection from Cl. 2.3.2, AS3600 (2018).
16. Calculate the deflection of the beam and check if it is less than the allowable limit; if not, suggest methods for
improvement.
17. Calculate the design shear force V* and determine the absolute maximum shear capacity , and
comment on the potential safety of the beam to compression-shear failure.
18. Determine the ultimate shear capacity of the cross-section.
19. Design the required stirrups.
20. Show detailed sketches of the design beam suitable for the construction engineer.
21. If this beam was a prestressed concrete (PSC) beam, what aspects would you consider as important in
designing in comparison to RC beam? and why? (Maximum 300 words and use dot points for your arguments).

To complete these tasks, you will:
• ensure that you work on the assignment regularly from the day of release until the day you submit.
• receive formative feedback from your tutor/ lecturer.
• use discussion board to post any queries related to the assignment (a separate forum has been set-up
for this purpose) to interact with each other and with the teaching team.

What you will submit/present (what artefacts will be used to judge your performance?)
You should include the following in your submission:
• A declaration statement (template attached) with your signature must accompany the submission.
• Solution of tasks 1 to 21 completed with step-by-step procedure, showing data, equations, sketches
and arguments wherever needed.
• A single pdf of the assignment solution with file name containing the student ID.
Design Assignment | EGB375 | Page 3 of 6


Criteria for Assessment
Your mark for this assessment task will be determined against the following criteria:
1. Use of sketches for describing the problem statement: Sketches showing the section, elevation of beam
with loading, supports and dimensions for a better understanding of the problem.
2. Formulae/design clauses: Correctness of the clauses and formulae that are used for specific
task.
3. Step wise procedure: Steps of design procedure shown in order with input data, diagrams, and cross
reference where necessary.
4. Numerical accuracy: The accuracy of the input and output design values.
5. Units of measurement: Inclusion of units in the numeric values and conversion to the standard
units used in the designing.
6. Results presentation: Comments on the design values and their safety. Summary of the results
and sketches to communicate the final design.
The marking rubric attached contains the standards that will be used to determine your mark against these
criteria. Examples of the types of design solutions that meet each standard are provided in the lectures and
tutorials.
You are encouraged to seek feedback from the teaching team at any time on your progress in this assignment via.
discussion board or in person.
Resources and Support Available
Support
Student Success: Book an appointment or attend a workshop at qut.to/academicsupport
Resources
EGB375 Workbook
EGB375 Discussion Board: A separate forum for assignment queries and help is set-up, please regular check and
post queries and engage in discussion to learn from each other and the teaching team
QUT Digital Workplace Health, Safety and Environment: https://qutvirtual4.qut.edu.au/group/student/health-
and-wellbeing/health-safety-and-environment
Academic Integrity Statement
You are reminded that maintaining academic integrity is an important professional capability in all assessment.
See the QUT MOPP C/5.3 Academic Integrity and the Engineers Australia Code of Ethics and Guidelines on
Professional Conduct. For this assessment, academic integrity will be monitored via uniqueness of approaches to
the solution, variation in the design values, progress through discussion and interaction with teaching team and
plagiarism tool.

In finalising your mark, you may be asked to verify aspects of your work through an interactive oral with the Unit
Coordinator. Note that if the Unit Coordinator has reasonable concerns about your academic integrity, they may
ask you to authenticate your learning in line with MOPP C/5.3 Section 5.3.7 (e) Authentication of learning.







Design Assignment | EGB375 | Page 4 of 6






EGB375 Design of Concrete Structures
DESIGN ASSIGNMENT

I, _________________________________________________,
Student Number ______________ declare that all work towards completing the assignment has been
performed by me with some/ no assistance from the tutor/ lecturer/ friend.
I have neither shared this assignment with any other student – present or past / within or outside QUT;
nor did I have the assignment written or the problems solved by other students.
The assignment is fully solved and written by me.

Sign: ___________________________
Student Name:
Date:


Design Assignment | EGB375 | Page 5 of 6


MARKING RUBRIC

CRITERIA 7 6 5 4 3 2
1. Use of sketches for
describing the problem
statement
To meet this
standard, you will:
To meet this
standard, you will:
To meet this
standard, you will:
To meet this
standard, you will:
To meet this
standard, you will:
To meet this
standard, you will:
Sketches showing the
section, elevation of beam
with loading, supports and
dimensions for a better
understanding of the
problem
Show all data in an
excellent sketch
drawn using ruler
or using computer
tool
Show all data in a
neat sketch drawn
using ruler
Show most of the
data in a
reasonable sketch
Show sufficient
data in a poor
sketch
Show poor sketch
with minimal data
Show sketch with
incorrect data or
miss the sketch
2. Formulae/design clauses To meet this
standard, you will:
To meet this
standard, you will:
To meet this
standard, you will:
To meet this
standard, you will:
To meet this
standard, you will:
To meet this
standard, you will:
Correctness of the clauses
and formulae that are
used for specific task
Choose correct
formula/ design
clause in all tasks,
with explanation of
all terms and input
values
Choose correct
formula/ design
clause in all tasks,
with sufficient
explanation of
terms and input
values
Choose correct
formula/ design
clause in most
tasks, with brief
explanation of
terms and input
values
Choose correct
formula/ design
clause in most
tasks, without
explanation of
terms and input
values
Choose incorrect
formula/ design
clause in few tasks,
without explanation
of terms and input
values
Choose mostly
incorrect formula/
design clause,
without explanation
of terms and input
values
3. Step wise procedure To meet this
standard, you will:
To meet this
standard, you will:
To meet this
standard, you will:
To meet this
standard, you will:
To meet this
standard, you will:
To meet this
standard, you will:
Steps of design procedure
shown in order with input
data, diagrams, and cross
reference where necessary



Describe all design
steps in all tasks in a
clear & logical way
with excellent
illustrations
Describe all design
steps in all tasks in a
clear & logical way
with sufficient
illustrations
Describe all design
steps clearly in most
tasks but in a
random fashion
with few
illustrations
Skip few design
steps and
illustrations that
may cause carry
on error in other
tasks
Undertake incorrect
design steps in most
tasks with few
illustrations
Undertake incorrect
design steps in all
tasks without
illustrations
Design Assignment | EGB375 | Page 6 of 6

CRITERIA 7 6 5 4 3 2
4. Numerical accuracy To meet this standard, you will:
To meet this
standard, you will:
To meet this
standard, you will:
To meet this
standard, you will:
To meet this
standard, you will:
To meet this
standard, you will:
The accuracy of the input
and output design values
Use data
accurately to
design all tasks
with immaculate
accuracy
Use data
accurately to
design most of the
tasks with accuracy
Use most data
accurately to design
most of the tasks
with sufficient
accuracy
Use some date
inaccurately which
affects the accuracy
of design values
Use data
inaccurately in the
design or mostly
inaccurate design
Use inaccurate or
incomplete data in
designing and
inaccurate design
5. Units of measurement To meet this standard, you will:
To meet this
standard, you will:
To meet this
standard, you will:
To meet this
standard, you will:
To meet this
standard, you will:
To meet this
standard, you will:
Inclusion of units in the
numeric values and
conversion to the
standard units used in the
designing

Provide all units
appropriately with
accurate
conversions
Provide most of
the units correctly
with accurate
conversions
Miss units at few
places with mostly
accurate
conversions
Miss several units
with few inaccurate
conversions
Miss most units with
inaccurate
conversions
Miss all units with
inaccurate
conversions
6. Results presentation To meet this standard, you will:
To meet this
standard, you will:
To meet this
standard, you will:
To meet this
standard, you will:
To meet this
standard, you will:
To meet this
standard, you will:
Comments on the design
values and their safety.
Summary of the results
and sketches to
communicate the final
design
Provide correct
arguments on the
safety of designed
values and convey
results with
immaculate
sketches
Provide correct
arguments on the
safety of designed
values and convey
results with good
sketches
Provide mostly
correct arguments
on the safety of
designed values and
convey results with
reasonable sketches
Miss few arguments
or incorrect
arguments on
safety of design and
inaccuracy in few
sketches
Provide inaccurate
arguments with
inaccurate sketches
Miss most
arguments with no
or inaccurate
sketches
Feedback: What was done well Feedback: What you could improve

Result for this Assessment Task: