LA023653_Assn3

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TAFE NSW - Sydney Institute *

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4011B

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Civil Engineering

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Dec 6, 2023

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docx

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CPCCBC4011B: Assessment 3 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: 3 LA Number: LA023653 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: OTEN has the right to reject your assessment if the above declaration has not been completed. What you have to do LA023653, Assessment 3, Marking guide, CPCCBC4011B, Edition number 4 1 © New South Wales Technical and Further Education Commission, 2019 (TAFE NSW), Version 2, November 2019

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: o Learning Resources for CPCCBC4011B o NCC Vol 1 o AS1170.1 Structural design actions – Permanent, imposed and other actions o AS1170.2 Structural design actions – Wind actions o AS3850.2 Prefabricated concrete elements – Building Construction o National Code of Practice for Precast, Tilt-up and Concrete Elements in Building Construction o AS3600 Concrete structures o Joints in Concrete Buildings – Technical Note 63, Cement Concrete & Aggregates Australia You may make any assumptions you need to, but be sure to include them as part of your submission. Task – Footing and flooring systems This Assessment task relates to the following Project (plans and specification provided): 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. Watch the YouTube videos Construction layout basics at https://www.youtube.com/watch?v=2ClYiSzct0U , Surveying – Setting out (Finchley college) at https://www.youtube.com/watch?v=iRH6bOMdBq4 and Laying out of footings with gridlines https://www.youtube.com/watch?v=KIN3fJYirhc and then explain briefly, in point form, the steps to setting out the building with reference to Drawing no.s CC-1A, CC-23A and CC-24A provided in readiness for excavating for the footings. You can assume that we have a flat site that has been cleared of topsoil, and that a surveyor has placed survey marks at reference points at the corners of the lot. (½ - 1 page) (Notes on the videos: 2 LA023653, Assessment 3, CPCCBC4011B, Edition number 4 © New South Wales Technical and Further Education Commission, 2019 (TAFE NSW), Version 2, November 2019

In the Construction layout basics video, the narrator refers to ‘batter boards’; in Australia we usually refer to these as profiles. Also, you will notice the use of imperial units of measurement. In Australia, we use metric measurement. In the Finchley College video, the lecturer describes the use of a total station for the setting out. A total station is a surveying instrument that integrates the capabilities of an electronic theodolite with electronic distance measurement. He also talks about surveying to set out the foundations. In Australia, we use the term foundation for the ground upon which the structure is built, and the term footing for the base of the building that sits on the foundation. The Chad Ryan video narrator refers to the “pad” – this is the base or platform of the bulk excavation before the detailed excavation takes place.)  Review drawing CC-1A, CC-23A, CC-24A (Factory plans) and surveying report and marks/ control points (corners boundaries, AA/A1, AK, A7, etc)  Ensure that the Survey marks have been established and marked out as reference points within the corners of the lot with stakes.  Stakes should be positioned at least 600mm from the building line  Run a taut string line from batter board to batter board, passing directly over the pegs. Stringlines to be run between the nails and the top of the stakes.  Check the distance between each stringline and ensure that they are equal.  Once the perimeters are parallel, the diagonals need to be measured to ensure that the building line is Square. Diagonals should be double checked by using Pythagoras theorem to prove it is square and correct.  Profiles should be established around the site but should at least be minimum 1200mm away from construction machinery.  Stakes should be perfectly pointed to ensure that when they are driven into the ground they don’t twist and move to avoid inaccuracies.  Plans should be looked over and checked for the location of footings including strip footings, pad footings and beams.  Hubs and laths are used to establish gridlines with chalk and should be double checked that they are correctly placed.  Dig out the footings ensuring that they are the right depth before finally pouring the footing. 2. Structural integrity – study the drawings showing details of the footings for this project. Describe how the footings – piers, pad footings (these are really pile caps), strip footings (this is really a pier and beam type system) and slab – contribute to the structural integrity of the building. You will need to address the following in your answer: a. the purpose of each type of footing (the specific loads that are supported; why this type of footing is used; how the loads are transferred to the ground) (approx. 100 words each) Piers : LA023653, Assessment 3, CPCCBC4011B, Ed4 3 © New South Wales Technical and Further Education Commission, 2019 (TAFE NSW), Version 2, November 2019

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A pier is a concrete column that's cast a top of a footing and is connected to the footing by steel re-bar. Piers are vertical pillars that transfer the load of the structure to the soil. Mostly used in soils that are either highly expansive or prone to collapse. These are typically underlain by stable material of high strength gravels, or compact sand. Piers work well on sites that may be difficult to dig a traditional foundation for example around tree roots, as well as being ideal for sites that are close to the ocean or flood zones as they raise a structure off the ground to protect it from the water. Pad footings: the simplest and cost-effective footing used for the vertical support and the transfer of building loads to the ground. Pad are footings used in good soil conditions this means that these types of footings do not need to be deep and structural loads of from the building is isolated to columns and not load baring walls. In instances the bearing capacity of soil directly below the structure is insufficient for a spread footing, piles are then used to transfer the load to deeper and firmer strata. It is necessary for piles to be used when the soil is affected by seasonal changes Strip footings : strip footing supports the load of the exterior walls and any interior wall that is load bearing or supports a slab. These are shallow foundations and are deemed to be the best option for light loads. Concrete Slab : Concrete slabs can be used in two different ways which include being supported by the ground or suspended slab above the ground. slabs are made from reinforced concrete. The slab is poured thicker at the edges, to form an integral footing. b. specific requirements for each type of footing (why they are the size specified; why they have reinforcement in the configuration shown; types of joints if applicable) (50 - 100 words each) Piers : Where footings are used on fill, unstable soils low bearing capacity soils, etc. the footings (and slab) will need further support which may be provided by:  Bulk piers—using a backhoe or excavator to dig down to firm ground at regular intervals. Bulk piers are generally poured at the same time as the footing. 4 LA023653, Assessment 3, CPCCBC4011B, Edition number 4 © New South Wales Technical and Further Education Commission, 2019 (TAFE NSW), Version 2, November 2019

 Bored piers—either reinforced or unreinforced depending on diameter, length, side movement expected, etc. These are usually dug and poured prior to digging the footings. 750 concrete piers under to detail pad all pad footing (PF3) for columns elevation 450 piers required max 600 pier to stiff natural clay strata (min 250 kPa bearing strata) for FOOTING JOINT 450 piers required pier to stiff natural clay strata (min 250 kPa bearing strata) for driveway 450 piers required pier to stiff natural clay strata (min 250 kPa bearing strata) for strip footing SF1, SF2, SF4 Pad footings: Pad Footings are square or round. These are used to support a concentrated load. The depth of the block which surround the piles must be equal to the length of the piles and its perimeter is equal to the perimeter around the outer surfaces of the outer piles. Concrete size 600 height with Y16-200 U-bars both ways top and bottom, 1200X1200 area for PF2, PF3, PF4, Strip footings : Strip footings can be dug out using a digger or back hoe depending on the depth of the footings. The footing support the load of exteriors walls and any interior wall that is load bearing or supports a slab. Outer walls are supported by strip footings SF2 with a square base 1200mm and height of 600mm to form the ground friction pad of the above weight of the slabs. This is connected across forming a single base structure of the ground base of the building. Concrete of 450 height and 600X600 area with 6-N12 top & bottom ties for SF1, SF2, SF4, 3. Once the layout of the footings has been accurately set out on the site, construction of the footings can begin: a. outline the construction method and sequence to construct each of these footing types (approx. 100 words each) Piers Construction method/sequence  Excavate the pier holes. The number, location and spacing will be shown on the Structural engineer's drawings.  Engineer to complete inspection of the Piers and provide approval to pour concrete  Pour concrete in the piers. The concrete is as per the Structural Engineer drawings. LA023653, Assessment 3, CPCCBC4011B, Ed4 5 © New South Wales Technical and Further Education Commission, 2019 (TAFE NSW), Version 2, November 2019

 After three days, excavate concrete beams between the piers. These concrete beams will be excavated around the entire perimeter of the house.  Position steel reinforcement for the beam.  Pour the beam Pad Footings Construction method/sequence  Pile caps are constructed by excavating an area around the group of piles to enable form work to be inserted.  The pile tops may be trimmed to ensure they are at the same height.  A reinforcement cage is then built and positioned in the formwork cast box and fastened to the piles.  Engineer to complete inspection of the footings and provide approval to pour concrete Strip Footings Construction method/sequence  Excavate the pier holes. The number, location and spacing will be shown on the Structural engineer's drawings.  Engineer to complete inspection of the footings and provide approval to pour concrete  Pour concrete in the piers. The concrete is as per the Structural Engineer drawings.  Excavate the strip footing. After three days, excavate the strip footing (or concrete beams) between the piers. These concrete beams will be excavated around the entire perimeter of the house.  Position steel reinforcement for the beam. (Inspection may be required for the installation of the reinforcement for the beam)  Pour the beam Concrete Slabs Construction method/sequence  Mark and plan out the slab in accordance with Structural Engineer plan.  Prepare the ground  Fix the edge formwork  Installation of services  Lay concrete underlay  Fix steel reinforcement in the beams  Fix reinforcements in the slab 6 LA023653, Assessment 3, CPCCBC4011B, Edition number 4 © New South Wales Technical and Further Education Commission, 2019 (TAFE NSW), Version 2, November 2019

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 Engineer to complete inspection provide approval to pour concrete  Placement of concrete b. what codes and/or Australian Standards are relevant to the compliance requirements for these footings? (briefly outline what each covers) Piers Codes and/or AS  NCC Vol 2, Part 3.2.5 Footing and Slab Construction  AS 2870–2011 Residential slabs and footings Pad Footings Codes and/or AS  NCC Vol 2, Part 3.2.5 Footing and Slab Construction  AS 2870–2011 Residential slabs and footings  AS 2159 & 3600 Concrete Pile Design Strip Footings Codes and/or AS  NCC Vol 2, Part 3.2.5 Footing and Slab Construction  AS 2870–2011 Residential slabs and footings  AS 2159 & 3600 Concrete Pile Design Concrete Slabs Codes and/or AS  NCC Vol 2, Part 3.2.5 Footing and Slab Construction  AS 2870–2011 Residential slabs and footings c. prepare an Inspection & Test Plan for ensuring the compliance of the damp- proofing of the floor slab with project documentation (information on Inspection & Test Plans and a template have been provided for you). Please see below ITP LA023653, Assessment 3, CPCCBC4011B, Ed4 7 © New South Wales Technical and Further Education Commission, 2019 (TAFE NSW), Version 2, November 2019

4. Read about the different types of joints in ground slabs. a. Sketch and explain the purpose and structural functionality of three types of slab joint (approx. 50 words each ), and Isolation joins (also known as expansion joints), isolate the slab from a wall, a column or a drain pipe. 8 LA023653, Assessment 3, CPCCBC4011B, Edition number 4 © New South Wales Technical and Further Education Commission, 2019 (TAFE NSW), Version 2, November 2019

Construction joints (which can also function as contraction joints) Construction Joint in concrete used to prevent any crack during its life period. Concrete has the property of expansion and contraction due to temperature changes resulting in a change in the volume of concrete. The change in the volume of concrete causes concrete cracking. Contraction joints (also sometimes called control joints) Contraction joints (also called control joints) are used in to minimise random concrete cracking by creating straight-line weakened-planes in concrete to control the cracking location by inducing cracks at predetermined locations. When slabs shrink due to change in moisture and temperature, shrinkage or tensile stresses start building and cracks form at contraction joints because the concrete is weaker or thinner at these locations as illustrated below b. indicate on a part floor plan of the factory project, where you would expect to see an isolation joint. LA023653, Assessment 3, CPCCBC4011B, Ed4 9 © New South Wales Technical and Further Education Commission, 2019 (TAFE NSW), Version 2, November 2019

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5. Investigate the first floor offices including details. a. How would the first floor office floors be supported during construction and post-construction? The first floor office floors are a concrete slab. During construction the office floors is supported via Formwork and is strengthened by reinforcement bars & mesh. The formwork is a temporary support whilst the concrete cures. Post Construction the office floor is supported by beams and columns. b. Detail the sequence of activities for the construction of the office floors. (approx. 100 words) During the Ground floor slab the columns for the Office floors will be cast. The next steps include  Prepare ground to hold scaffolding by compacting pressured area.  Formwork for the columns  Engineer to complete inspection and provide approval to pour the columns  Pour columns  Erect scaffolding with solid footing underneath to prevent accidents, this is done with leveling of foot steps bar and secure in locked position with horizontal, vertical and diagonal supporting bars  Assemble and Erect Formwork for Slab  Formwork for the First floor  Installation of services  Fix reinforcements in the slab  Engineer to complete inspection provide approval to pour concrete  Placement of concrete  Cure daily  Post-construction, scaffolds and the shuttering are removed and structure can be supported by itself post construction.  Roof installation  Completion of fit out works including internal partitions installation, windows, doors, Electrical, Mechanical and communications. 10 LA023653, Assessment 3, CPCCBC4011B, Edition number 4 © New South Wales Technical and Further Education Commission, 2019 (TAFE NSW), Version 2, November 2019

6. In the early stages of the construction of a single storey childcare centre with a slab on ground (stiffened raft), and brick veneer (timber framed) structure, damp-coursing and termite protection need to be considered. a. What are the BCA requirements and the Australian Standards (include clause numbers and brief description) relevant to: i. damp-coursing, and BCA volume 1, Clauses F 1.9 and F 1.10 relevant to damp-coursing: F 1.9 Damp-proofing: i. moisture from the ground must be prevented from reaching: the lowest floor timbers and the walls above the lowest floor joists; and the walls above the damp-proof course; and ii. where a damp-proof course is provided, it must consist of - SA F1.9(b) : a material that complies with AS/NZS 2904; or impervious termite shields in accordance with AS 3660.1. F1.10 Damp-proofing of floors on the ground: If a floor of a room is laid on the ground or on fill, moisture from SA F1.10, the ground must be prevented from reaching the upper surface of the floor and adjacent walls by the insertion of a vapor barrier in accordance with AS 2870, except damp-proofing need not be provided if: i. weatherproofing is not required; or ii. the floor is the base of a stair, lift or similar shaft which is adequately drained by gravitation or mechanical means ii. termite protection for this building. AS 3660.1, and for the purposes of this provision, a primary building element consisting entirely of, or a combination of, any of the following materials is considered not subject to termite attack. Area 3.1.3.3 Termite Risk Management-Barriers for Concrete Slab On Ground In introducing termite obstructions, the accompanying data will be thought of the chunk should consent to the guidelines of AS 2870 if the piece will function as a segment of the termite hindrance. b. Using bullet points, outline how you would plan for, implement and check, the installation of: i. damp-coursing, and  Supply and install the Damp Proof Courses and flashings throughout the project as required.  The Contractor must ensure that all flashings and damp proof courses are properly laid to shed and retain water to the outside of the premises and that the works are made water and weather tight.  Lay damp proof courses over the first course from floor of all amenity walls. Damp Proofing Checklist On the roof  Check for dislodged or broken tiles  Check condition of roof cement LA023653, Assessment 3, CPCCBC4011B, Ed4 11 © New South Wales Technical and Further Education Commission, 2019 (TAFE NSW), Version 2, November 2019

 Check gutter for leaks, blockages or mis-alignment  Check condition of any flat roofs In the loft  Check any water tanks for leaks and ensure any thermostats work correctly (faulty thermostats can result in a heating filament faling to switch off and excessive steam forming)  Check overflow pipes  Check for signs of excessive condensation  Check extractor fans are working correctly and discharging moisture outside Walls  Check for sign of damp above damp proof course  Check damp proof course is not breached  Check any drains are not blocked  Check condition of cement pointing ii. termite protection, for this building.  Removal all loose timbers  Solid core doors shall comply in all respects with the requirements of the relevant standards. Internal doors 35mm, external doors 40mm with marine ply.  Hardware shall be provided to suit the required purpose and shall be fixed strictly in accordance with the requirements of the manufacturer, and comply with BCA NSW in all respects.  Remove all excess garden waste including dead tree stumps and roots  Repair all leaks  Timber structures should be mounted on metal stirrups to be free from soil contact  Check slab joints where termites entry could be possible  Ensure ventilation and drainage within subfloors  Keep slab edges and termites shields clearly visible Checklist I have: o named my file appropriately. 12 LA023653, Assessment 3, CPCCBC4011B, Edition number 4 © New South Wales Technical and Further Education Commission, 2019 (TAFE NSW), Version 2, November 2019 NOTE: This is a competency-based assessment. You will receive a result of Satisfactory or Unsatisfactory . This means that you must satisfactorily complete each question (or part thereof) to meet the competency requirements set out in the training package. If you do not meet the competency requirements, you will need to resubmit your assessment until competency is achieved.

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o surname_Your first initial.Unit number_assessment number (e.g. Smith S.4002A_A2) o completed the Assessment cover sheet o submitted my assessment report as a single combined PDF file. o answered all questions in the manner described o clearly identified my answers o saved a copy of the assessment on my computer o checked spelling, grammar and punctuation o presented my own work, used only my own words, except where cited, and o followed the presentation guidelines found on the OLS If you require clarification, please contact your teacher at OTEN to discuss. LA023653, Assessment 3, CPCCBC4011B, Ed4 13 © New South Wales Technical and Further Education Commission, 2019 (TAFE NSW), Version 2, November 2019

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