LA025078_Assn5_CPCCBC4011B_Ed5
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TAFE NSW - Sydney Institute *
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Dec 6, 2023
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CPCCBC4011B: Assessment 5
Please type your answers in black font. (Calibri 12 point)
STUDENT DETAILS
Student Name: TAFE ID:
UNIT AND ASSESSMENT DETAILS
Unit Number: CPCCBC4011B-ed5
Assessment No:5
LA Number:LA025078
DECLARATION
I hold a copy of this assessment.
I have completed all parts of the assessment.
I hereby certify that no part of this assessment or product has been copied from any other
student’s work or from any other source except where due acknowledgement is made in the
assessment.
Student’s signature: _________________________________________
(Electronic Signature is accepted)
Note: TAFE Digital has the right to reject your assessment if the above declaration has not
been completed.
What you have to do
LA025078 Assessment 5, CPCCBC4011B, Edition number 5
1
© New South Wales Technical and Further Education Commission, 2020 (TAFE NSW), Version 3, August 2020
Please type your answers in black font. (Calibri 12 point)
It is recommended that you are familiar with the following resources and standards prior to
completing this assessment:
Learning Resources for CPCCBC4011B
NCC Vol 1
AS1170.1 Structural design actions – Permanent, imposed and other actions
AS1170.2 Structural design actions – Wind actions
AS3600 Concrete structures
AS3700 Masonry
You may make any assumptions you need to, but be sure to include them as part of your
submission.
Please note:
EVERY question (and part thereof) must be answered satisfactorily for you to be
deemed COMPETENT in this assessment.
Task 1 – Services
This Assessment task relates to the following Project:
Project 3 Factory Complex
Job Address:
7 Layland Way, Banksia, NSW
Job Title:
Proposed Factory Units and Office Space
Client:
Tasmegs Development Pty Ltd
Architect:
Olympic Designs, 55 Olympic Parade, Homebush, NSW 2140
1.
Allowance for services – study the floor plans for this project. Clearly indicate on the
plan of units 2 & 3 (Dwg no. CC-8A), where penetrations in the ground slab (or other
allowance, e.g. wall chasing) would likely be required to allow for:
a.
hot and cold water supply
b.
wastewater
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LA025078, Assessment 5, CPCCBC4011B, Edition number 5
© New South Wales Technical and Further Education Commission, 2020 (TAFE NSW), Version 3, August 2020
Penetration in slab for waste water
2.
The installation of services must be considered in the design and construction
process.
a.
Outline the process for the incorporation of services installations in the design
of this building by nominating the correct order of the following processes:
Activity/process in the design of services for a
building
Indicate order of
processes
Issue of electrical, hydraulic, telecom., mechanical (air
ducting), drawings for construction
5
Consultation with engineers and specialist technicians
for all of the required services to establish design
requirements for the client
2
Consultation with client as to specific requirements for
telecommunications, fire systems, extra electrical
load, ducting for heating/cooling, exhaust systems,
etc.
1
Engaging required services trades for construction
6
Coordination of engineers’ and specialist technicians’
designed systems to ensure compatibility of plans
4
Drafting of drawings for the various services
installations (hydraulic, electrical, mechanical, etc.)
3
b.
What codes and/or Australian Standards are relevant to the compliance
requirements for these installations?
LA025078 Assessment 5, CPCCBC4011B, Edition number 5
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© New South Wales Technical and Further Education Commission, 2020 (TAFE NSW), Version 3, August 2020
Penetration in slab for cold water
Penetration in slab for hot water
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AS/NZS 3000:2018 Electrical installations (the Wiring Rules),
AS/NZS 3012:2019 Electrical Installations – Construction and
demolition sites
AS/NZS 3017:2007 Electrical installations Verification
guidelines,
AS/NZS 3760:2010 In-service safety inspection and testing of
electrical equipment
AS/NZS 4836:2011 Safe working on lowvoltage electrical
installations and equipment.
AS2293.1: Emergency Escape Lighting & Exit Signs
These codes relate to electrical safety:
Electrical safety code of practice 2020 – Electrical equipment
rural industry,
Electrical safety code of practice 2013 – Managing electrical
risks in the workplace,
Electrical safety code of practice 2020 - Working near overhead
and underground electric lines,
Electrical safety code of practice 2020 - Works.
Task 2 – Structural elements of commercial
buildings
3.
Examine the following photographs and answer the questions relating to this building
project. Figure 1 shows the upper floor of a 2-storey office building during
preparations for pouring concrete. Figure 2 is a view of the ground floor at the same
stage of construction.
a.
What system is being used to support the upper floor for the pouring and
setting of the concrete?
Formwork for Suspended reinforced slabs. The slabs can be formed and
poured in situ, with either removable or ‘lost’ non-loadbearing formwork, or
permanent formwork which forms part of the reinforcement.
The plywood formwork is supported on ground and 1st floor adjustable
formwork props. Bracing, formwork bearers and bottom plates are also used.
b.
How are the floor slabs on the upper floor supported in the finished building?
Columns, walls, beams, concrete and steel bars.
c.
What enables the concrete in the slabs to span over the open areas beneath?
To enable the concrete in the slabs to span over open areas beneath, a
common method used in construction is the inclusion of structural elements
called beams or girders. These beams or girders are designed and positioned
in such a way that they provide additional support to the concrete slabs,
allowing them to span across the open areas without sagging or collapsing.
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LA025078, Assessment 5, CPCCBC4011B, Edition number 5
© New South Wales Technical and Further Education Commission, 2020 (TAFE NSW), Version 3, August 2020
The beams or girders distribute the load from the slab to the supporting
columns or walls, ensuring the structural stability of the building.
d.
There do not appear to be any structural walls at ground floor level. How then
are the loads (dead and live) to be supported in the finished building?
The loads, including dead loads and live loads would typically be supported
through alternative structural elements. Here are a few possibilities:
Columns and Beams: The building may rely on a system of columns
and beams to distribute the loads to the foundation. The columns
provide vertical support, while the beams transfer the loads
horizontally between the columns.
Transfer Beams: Transfer beams can be used to transfer loads from
the upper levels to columns or walls at lower levels. These beams are
designed to accommodate the load transfer and redistribute the forces
effectively.
Structural Cores: The building may have a structural core, which is a
vertical element that provides both lateral and vertical support. The
core can be made of reinforced concrete or steel and is responsible
for resisting lateral loads, such as wind or seismic forces.
e.
Suggest what elements in this building would provide resistance to wind
loads.
Bracing, dead loads, connections, ties, and walls. Reinforced concrete
slab and columns.
© J.Wilms
Figure 1 Preparing for concrete pour
LA025078 Assessment 5, CPCCBC4011B, Edition number 5
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© New South Wales Technical and Further Education Commission, 2020 (TAFE NSW), Version 3, August 2020
© J.Wilms - TAFE Digital
Figure 2 View of ground floor and second floor supports
4.
Find a retaining wall in your neighbourhood, or refer to the photos below and answer
the associated questions.
a.
Sketch a typical cross-section that could represent this retaining wall and fully
label.
b.
When this retaining wall is completed, what is the major component that
resists overturning? Indicate this in your sketch above.
When a retaining wall is completed, the major component that resists
overturning is typically the wall's base or fotting. The footing of a
retaining wall is designed to provide stability and prevent the wall from
toppling or overturning under the lateral pressure exerted by the soil or
retained material.
The footing of a retaining wall is typically constructed below ground
level and is designed to distribute the loads from the wall to the
underlying soil or rock strata. It may consist of reinforced concrete
footings, piles, or other engineered foundation systems, depending on
the specific design requirements and site conditions.
6
LA025078, Assessment 5, CPCCBC4011B, Edition number 5
© New South Wales Technical and Further Education Commission, 2020 (TAFE NSW), Version 3, August 2020
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It is designed to counteract the lateral forces exerted by the retained
material and to ensure that the wall remains stable and in its intended
position.
Other components of the retaining wall, such as the backfill material,
drainage systems, and reinforcement elements, also contribute to the
overall stability and performance of the wall.
c.
What is the purpose of the black sheeting?
The black sheeting is a water barrier sheet, also known as a
waterproofing membrane, is used in a retaining wall to prevent water
infiltration into the structure. It serves as a protective layer that resists
the passage of water and moisture through the wall.
d.
What is the purpose of the flexible pipe?
A flexible pipe is often used for drainage purposes. The flexible pipe,
also known as a perforated drainpipe or weeping tile, is typically
placed at the base of the retaining wall or within the backfill material
behind the wall.
The purpose of the flexible pipe is to collect and redirect any excess
water that accumulates behind the retaining wall. It helps prevent the
build-up of hydrostatic pressure, which can put additional stress on the
wall and potentially lead to structural issues.
The pipe is perforated, allowing water to enter through the small holes
or slots along its length. It then carries the water away, either through
gravity or with the assistance of a drainage system, such as a
collection sump or drain outlet. By effectively draining water away from
behind the wall, the flexible pipe helps maintain the stability and
integrity of the retaining structure.
e.
What is shown in Figure 5? What is its purpose?
A Control Joint is shown.
The purpose of a control joint is to control and minimize cracking in
concrete structures. A control joint is a deliberate gap or groove that is
formed in the concrete at pre-planned locations. It allows for controlled
cracking to occur along the joint, relieving the stress caused by
shrinkage, thermal expansion/contraction, or movement in the
structure.
Control joints are strategically placed in concrete slabs, walls, or other
large concrete structures to guide the location of cracks. By providing
a weakened plane, the control joint directs where the cracks will occur,
minimizing the likelihood of random, uncontrolled cracking that could
impact the structural integrity or appearance of the concrete.
f.
Give 5 reasons for constructing this retaining wall with this material
(blockwork).
Strength and Stability: Blockwork is known for its strength and stability,
making it a reliable choice for retaining walls.
LA025078 Assessment 5, CPCCBC4011B, Edition number 5
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© New South Wales Technical and Further Education Commission, 2020 (TAFE NSW), Version 3, August 2020
Versatility: Concrete blocks come in various sizes, shapes, and finishes,
allowing for versatility in design.
Durability: Blockwork is highly durable and resistant to weathering, rotting,
and insect damage.
Cost-effectiveness: Concrete blocks are relatively cost-effective compared to
some other retaining wall materials
Ease of Construction: Blockwork is generally considered easier to work with
compared to other materials, such as poured concrete or natural stone.
© J.Wilms- TAFE Digital
Figure 3 Retaining wall being prepared for filling with concrete slurry
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LA025078, Assessment 5, CPCCBC4011B, Edition number 5
© New South Wales Technical and Further Education Commission, 2020 (TAFE NSW), Version 3, August 2020
© J.Wilms- TAFE Digital
Figure 4 Retaining wall backfill preparations
LA025078 Assessment 5, CPCCBC4011B, Edition number 5
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© J.Wilms- TAFE Digital
Figure 5 Joint in retaining wall
5.
Using documentation provided for Macquarie Fields TAFE (structural engineering
drawings),
identify what steel sections you would need for the following structural
elements in Block K (western part of the building), explaining what the letter/number
designation means:
a.
the main roof rafters
RA: 310UB32.0 – 310mm high weighing 32kg/m
RB: 200PFC – 200mm high
RC 75x75x5.0 SHS – 75mm x 75mm square 5mm thick
RD: 310UB40.4 – 310mm high weighing 40.4kg/m
b.
the main roof bracing
RBA (Roof): 16mm diameter threaded rods with turnbuckle 10Rs, 1M20
bolt per connection
WBA (Wall): 16mm diameter threaded rods with turnbuckle 10Rs, 1M20
bolt per connection
c.
the main roof purlins
PA: C20015 @ 1200 spacings with 1 row of bridging at mid span
200mm high 1.5mm thick
PB: C25019 @ 1200 spacings with two rows of bridging at third span
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LA025078, Assessment 5, CPCCBC4011B, Edition number 5
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200mm high 1.5mm thick
PC: C15015
150mm high 1.5mm thick
6.
On a set of engineering drawings (Drawing no. S-05 Slab plan – first floor) for a
project (“Central supermarket”) on which you are working, a reinforced concrete floor
slab spans over a grid of steel beams spaced at 6 metres in each direction. The
drawings say that the slab is 120 mm thick and has N20 bars running in two
directions both top and bottom of the slab (two-way spanning and continuous). In the
specifications, cover to the reinforcement is noted as 30 mm top and 20 mm bottom
and the concrete strength is noted as 32 MPa. The slab is an internal slab with no
external exposure.
(Note that you do not need to access this drawing to complete this
question)
Based on the information provided, here are some key details about the reinforced
concrete floor slab:
Thickness: The floor slab has a thickness of 120 mm.
Steel Beam Grid: The slab spans over a grid of steel beams spaced at
6 meters in each direction. This indicates that the beams provide
support and structural stability to the slab.
Reinforcement: The slab contains N20 bars running in two directions,
both on the top and bottom of the slab. This configuration suggests
that the slab is designed for two-way spanning and continuous
reinforcement, enhancing its load-bearing capacity.
Concrete Cover: The specifications mention a concrete cover of 30
mm on the top side and 20 mm on the bottom side of the slab.
Concrete cover refers to the thickness of concrete between the
surface of the slab and the nearest surface of the reinforcement. This
cover provides protection to the reinforcement from corrosion and
ensures proper bond between the concrete and the reinforcement.
Concrete Strength: The specified concrete strength for the slab is
noted as 32 MPa. Concrete strength is a measure of its ability to
withstand compression. A higher strength indicates greater load-
bearing capacity and durability.
Internal Slab: The slab is described as an internal slab with no
external exposure, meaning it is not directly exposed to the external
environment. This can impact factors such as surface finishes and
additional protective measures required.
a.
Although preparations for this stage of the job are some weeks away yet, compose
two
points that you wish to discuss with the engineer responsible for the design to
address your concerns that there may be an error.
(Refer to the information tab on
the OLS for guidance to answering this question)
Concrete Slab Thickness: I would like to seek clarification regarding the specified
thickness of the concrete slab in Drawing No. S-05, Slab Plan - First Floor. I have
noticed a potential discrepancy in the thickness mentioned and would like to confirm
the intended thickness to ensure that it meets the required structural and load-
bearing criteria. This clarification will help us ensure the proper design and
construction of the slab.
Concrete Cover: I would like to discuss the concrete cover requirements for the
reinforcement in the concrete slab. Drawing No. S-05 mentions a concrete cover of
LA025078 Assessment 5, CPCCBC4011B, Edition number 5
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© New South Wales Technical and Further Education Commission, 2020 (TAFE NSW), Version 3, August 2020
30 mm on the top side and 20 mm on the bottom side of the slab. However, I would
like to confirm if these dimensions align with the project's specifications and design
standards. It is crucial to ensure adequate concrete cover to protect the
reinforcement from corrosion and ensure the long-term durability of the structure.
b.
Forward an email to your concreting subcontractor, informing them that there is an
issue with the concrete slab thickness and/or concrete cover on one of the drawings,
and that you are going to contact the engineer. You should inform the concretor that
there may be changes to be made and that you will require a revised quote once you
have received a response from the engineer. Be very clear and respectful in your
communications; it is very important that your concretor understands the issue and
that no problems arise later. Although your concretor has shown absolute
competence in the job so far, they are not a native english speaker.
Subject: Issue with Concrete Slab Thickness and Cover - Request for Revised Quote
Dear Concretor
I hope this email finds you well. I wanted to bring to your attention an issue that has been
identified on one of the engineering drawings for the "Central supermarket" project. It
appears that there may be discrepancies regarding the concrete slab thickness and concrete
cover as specified in Drawing No. S-05, Slab Plan - First Floor.
Upon careful review, it has come to our attention that the specified concrete slab thickness
and cover may require adjustment. As the accuracy and compliance of the construction
plans are of utmost importance, we are taking immediate action to address this matter.
To ensure that the concrete slab meets the required standards and design specifications, we
will be reaching out to the engineer responsible for the project. We intend to seek their
guidance and clarification on the appropriate slab thickness and cover requirements.
As a result, it is highly likely that changes will need to be made to the concrete slab design. I
kindly request your cooperation and flexibility in accommodating any necessary revisions.
Once we receive a response from the engineer and have a clear understanding of the
required modifications, we will provide you with the revised details.
Your expertise and competence in this project have been greatly appreciated thus far, and
we fully trust your abilities to handle any adjustments that may arise. We understand that
English may not be your native language, so please do not hesitate to reach out if you
require any further clarification or assistance regarding this matter.
Please note that we value our working relationship and aim to ensure smooth
communication and a successful project outcome. We will keep you promptly informed of
any updates or changes as we progress.
Thank you for your understanding and cooperation in this matter. We look forward to your
continued support and await a revised quote based on the updated specifications once we
have received a response from the engineer.
Best regards,
Sarah Lloyd-Jones
Hickory Group
Senior Contracts Administrator
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Checklist
I have:
named my file appropriately.
completed the Assessment cover sheet and signed the assessment
declaration
submitted my assessment report as a single combined PDF file.
answered all questions in the manner described
saved a copy of the assessment on my computer
checked spelling, grammar and punctuation
presented my own work, used only my own words, except where cited, and
followed the presentation guidelines found on the OLS
LA025078 Assessment 5, CPCCBC4011B, Edition number 5
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© New South Wales Technical and Further Education Commission, 2020 (TAFE NSW), Version 3, August 2020