Unit Outline

This unit introduces the principles and materials used in prestressed concrete design. The unit explores in details the design of prestressed concrete structures for serviceability and strength by covering essential topics such as the design of statically determinate and indeterminate beams and also losses – short and long term effects and anchorage zone design. The syllabus also covers the use of commercial software such as INDUCTA and/or RAPT to design prestressed concrete members.

Intended Learning Outcomes

As per the Assessment and Results Policy 1.3, your results will reflect your achievement against specified learning outcomes.

On completion of this unit, you will be able to:


1.	Determine load effects induced by prestressing and their effect on service behaviour and ultimate strength
2.	Analyse and design prestressed concrete members for serviceability, deflection, creep and shrinkage
3.	Analyse and design prestressed concrete members for strength
4.	Optimise the design of prestressed concrete structures using computer software.

Requisites


REQUISITE TYPE	REQUISITES
Pre-requisite	ENG705

Alterations as a result of student feedback

How will I be Assessed?

For more detailed assessment information please see MyLO.

Assessment schedule


ASSESSMENT TASK #	ASSESSMENT TASK NAME	DATE DUE	WEIGHT	LINKS TO INTENDED LEARNING OUTCOMES
Assessment Task 1:	Design Project 1	Week 7	30 %	LO1, LO2, LO3
Assessment Task 2:	Questions/ Short Essay	Week 10	10 %	LO1, LO2, LO3
Assessment Task 3:	Design Project 2	Week 12	30 %	LO2, LO3, LO4
Assessment Task 4:	Design Project 3	Week 13	30 %	LO1, LO2, LO3, LO4

Assessment details

Assessment Task 1: Design Project 1

Task Description:

In this project, you will be required to design typical prestressed beams to a certain loading. the Design includes section dimensions, prestressing force and eccentricity.

Task Length:

6-8 A4 pages including drawings and sketches

Due Date:

Week 7

Weight:

30 %

CRITERION #

CRITERION

MEASURES INTENDED

LEARNING OUTCOME(S)


1	Interpret Australian Standards to determine loads and load combinations on the given beam.	LO1
2	Apply the principles of structural analysis to determine internal forces in the given beam.	LO1
3	Interpret the Australian Standards to design and detail the given beam	LO2, LO3
4	Produce drawings and sketches of construction details to industry specifications	LO2, LO3

Assessment Task 2: Questions/ Short Essay

Task Description:

In this essay, you will need to answer a series of questions regarding the theory and application of prestressed concrete. Questions will revolve around the general theory of prestressed concrete, prestressing techniques, design procedure, design philosophy, in-service design and other theoretical and practical aspects covered in class.

Task Length:

6-8 A4 Pages (including photos, pictures and diagrams)

Due Date:

Week 10

Weight:

10 %

CRITERION #

CRITERION

MEASURES INTENDED

LEARNING OUTCOME(S)


1	Identify and describe the theory and standards used in the design of prestressed concrete members	LO3
2	Correctly answer the test questions	LO1
3	Use the appropriate references and theory when answering the questions	LO2

Assessment Task 3: Design Project 2

Task Description:

In this project, you will need to optimise the design of a conventional reinforced beam by adding prestressed strands and then determining the ultimate sign moment of resistance of the section using strain compatibility and given stress-strain design relationship for prestressing steel.

Task Length:

5-7 A4 Pages including drawings and sketches

Due Date:

Week 12

Weight:

30 %

CRITERION #

CRITERION

MEASURES INTENDED

LEARNING OUTCOME(S)


1	Apply the principles of structural analysis to determine internal forces in the given beam.	LO2, LO3
2	Interpret the Australian Standards to design and detail the given member/structure and its connections	LO2, LO3
3	Produce drawings and sketches of construction details to industry specifications.	LO2, LO3
4	Optimise the given beam by correctly using prestressing strands.	LO4

Assessment Task 4: Design Project 3

Task Description:

In this project you will need to conduct the full design, detailing and optimisation of a prestressed beam. The design will include:
- Calculating the prestressing force required to produce zero deflection at transfer
- Calculating the friction losses at midspan and the time-dependent losses for the beam
- Checking the flexural strength at mid-span
- Checking the shear strength of the beam at a certain distance from the support.
- Designing suitable shear reinforcement.
- Designing the anchorage zone for the beam.
- Optimisation of the design.

Task Length:

16-18 A4 Pages including drawings and sketches

Due Date:

Week 13

Weight:

30 %

CRITERION #

CRITERION

MEASURES INTENDED

LEARNING OUTCOME(S)


1	Interpret Australian Standards to determine loads and load combinations on the given beam.	LO1
2	Apply the principles of structural analysis to determine internal forces in the given beam	LO2, LO3
3	Interpret the Australian Standards to design and detail the given beam and its anchorage zones	LO2, LO3
4	Produce drawings and sketches of construction details to industry specifications	LO2, LO3
5	Optimise the design beam using relevant theory and/or software	LO4

How your final result is determined

To pass this unit, you need to demonstrate your attainment of each of the Intended Learning Outcomes, achieve a final unit grade of 50% or greater, and pass any hurdle tasks.

Submission of assignments

Where practicable, assignments should be submitted to an assignment submission folder in MYLO. You must submit assignments by the due date or receive a penalty (unless an extension of time has been approved by the Unit Coordinator). Students submitting any assignment in hard copy, or because of a practicum finalisation, must attach a student cover sheet and signed declaration for the submission to be accepted for marking.

Requests for extensions

If you are unable to submit an assessment task by the due date, you should apply for an extension.

A request for an extension should first be discussed with your Unit Coordinator or teaching support team where possible. A request for an extension must be submitted by the assessment due date, except where you can provide evidence it was not possible to do so. Typically, an application for an extension will be supported by documentary evidence: however, where it is not possible for you to provide evidence please contact your Unit Coordinator.

The Unit Coordinator must notify you of the outcome of an extension request within 3 working days of receiving the request.

Late penalties

Assignments submitted after the deadline will receive a late penalty of 5% of the original available mark for each calendar day (or part day) that the assignment is late. Late submissions will not be accepted more than 10 calendar days after the due date, or after assignments have been returned to other students on a scheduled date, whichever occurs first. Further information on Late Penalties can be found on the Assessments and Results Procedure.

Review of results and appeals

You are entitled to ask for a review of the marking and grading of your assessment task if there is an irregularity in the marking standards or an error in the process for determining the outcome of an assessment. Details on how to request a review of a mark for an assignment are outlined in the Review and Appeal of Academic Decisions Procedure.