LA023654_Assn4

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Dec 6, 2023

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CPCCBC4011B: Assessment 4 Please type your answers in black font. (Calibri 12 point) STUDENT DETAILS Student Name: Sarah Lloyd-Jones TAFE ID: 880582706 UNIT AND ASSESSMENT DETAILS Unit Number: CPCCBC4011B-ed5 Assessment No: 4 LA Number: LA023654 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 LA023654, Assessment 4, CPCCBC4011B, Edition number 4 1 © New South Wales Technical and Further Education Commission, 2020 (TAFE NSW), Version 2, September 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: 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 AS4100 Steel structures o Code of Practice: Demolition Work o AS2601 The Demolition of structures You may make any assumptions you need to, but be sure to include them as part of your submission. Task 1 – Wall systems This assessment task is based on 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. Study the wall system for the external and dividing walls in the factory units and answer the following: a) What type of wall system has been used? The type of wall system that has been used are prefabricated concrete panels with a paint finish. (Also known as Precast Concrete) b) What structural function(s) do these walls perform? (hint: what loads do they resist and how? Do they support any building components?) 2 LA023654, Assessment 4, CPCCBC4011B, Edition number 4 © New South Wales Technical and Further Education Commission, 2020 (TAFE NSW), Version 2, September 2020
Pre concrete panels can easily support multi-storey structures such as the project shown. They are quite strong and adaptable therefore the product can withstand a lot of weight. Precast has the highest levels of acoustic separation that is commonly used in the housing construction. Example: - Weight 10DT24 = 468 plf. - Roof Dead Load = 20 psf - Roof Live Load = 30 psf - Wind Load = 30 psf 2. When prefabricated concrete elements are used in a construction project, there are two stages to the design process. a) What design issues do these stages consider? Stage 1: Structural design – Completed by the Structural Engineer who will review the load requirements of the buildings construction and determine the appropriate wall thickness, height and overall design. Stage 2: Construction process – Determining how the concrete elements are handled, transported, erected and supported during the erection process. It can be completed by the Structural Engineer or the Engineer appointed during the construction phrase process i.e the concrete panel manufacturer. b) What loads must be considered in each of these design stages? (refer to Part 3 and Part 4 of Precast and Tilt-up Concrete for Buildings at https://vic.cfmeu.org.au/sites/vic.cfmeu.org.au/files/uploads/OHS/Alerts/Industry %20Standard%20%28Vic%29%2C%20Precast%20and%20Tilt-up%20Concrete%20for %20Buildings.pdf if you need help) The structural design of Precast concrete elements should be carried out whilst regulating with AS 3850 and AS 3600. They are to also take note of the provisions that come along with these regulations and Australian Standards. Structural members supporting precast or tilt-up elements needs to be designed such that they are subject to for the situation where the element may bear on only two discrete points during erection. In addition to the normal design considerations, special consideration should be given to: • Construction loads • Handling and transport loads or Impact loads • Erection loads • Wind load on the braced elements prior to incorporation into the structure • Seismic (earthquake) loads. c) What is/are the Australian Standard(s) most applicable when undertaking this type of construction? LA023654, Assessment 4, CPCCBC4011B, Edition number 4 3 © New South Wales Technical and Further Education Commission, 2020 (TAFE NSW), Version 2, September 2020
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Precast and tilt-up concrete elements should be designed and constructed in accordance with the Building Code of Australia and the relevant Australian Standards. This Industry Standard is intended to complement the key Australian Standards dealing with precast and tilt-up concrete construction, AS 3600 and AS 3850. d) What is the relevant (national) Code of Practice? Work Cover’s Code of Practice for Building and Construction Workplaces. Work Cover Safety Guidance for Housing Construction. Precast and Tilt Up Concrete Construction AS3600 AS 3850.1 – 2015 ‘Prefabricated Concrete Elements’ e) Considering the transport and erection of large precast elements that are manufactured off-site, what issues need to be considered by the designers and the principal contractor prior to the preparation of shop drawings for a project? Prior to the preparation of the shop drawings, which should comply with the structural design, the following details should be considered how the elements will be lifted for transport the movement of materials and equipment the required vehicle load capacity where the elements will be stored the clearance to adjacent structures whether assembly can take place on ground, or if working at height will be necessary. the allowances required for cranes and other lifting devices. If there is any site limitation or access issues Local street access What the delivery sequence will be f) List 15 important items that should appear on the shop drawings for such elements. 1) Drawing Number 2) Date and Revision number of the drawing 3) Location of the project 4) Element number 5) Mass of each element 6) Dimension and center of gravity of elements 7) Reinforcement, Concrete Cover and Strands. 8) Standard Symbols used on the drawings – AS3850 9) Brace and Prop details for the concrete elements. 10) Concrete Compressive strength of the concrete element. 11) Class and Strength grade designation – AS3600 12) Erection Sequence. 13) Location of Grouting Ducts. 14) Location of Conduits – electrical, plumbing and cabling. 15) Reinforcement strands and concrete cover. 4 LA023654, Assessment 4, CPCCBC4011B, Edition number 4 © New South Wales Technical and Further Education Commission, 2020 (TAFE NSW), Version 2, September 2020
16) Concrete Element Dimensions. 17) Location, Orientation and Depth of all inserts and the size, configuration and concrete cover of any component reinforcement that is required. 3. There are a number of steps in the process of erecting this type of wall system. Outline the main issues that need to be considered in: a) planning the use of cranes on the site (for lifting the panels into place), The feasibility of transporting a crane of the required type and capacity to lift the elements also needs to be taken into account. Cranes and elevating work platforms should be selected and used in accordance with the appropriate parts of AS 2550 Review of any obstructions such as trees, overhead powerlines Communication to the Site teams High risk SWMS Frames used to support elements during transport should be designed to withstand loads and forces acting on the system during loading, transportation and unloading. b) quality checks on the panels prior to commencing lifting, Ensuring that the concrete strength of the precast elements has reached the design strength for transport and erection. Ensuring that the elements are loaded in a sequence compatible with the required unloading sequence on site. Restricted access to loading zones ITPs are completed by Manufacturer, site team and Engineer. c) steps to be taken prior to commencing erection, and Crane Inspections are completed and deemed safe to operate. High Risk SWMS are completed. Brace Footing and Element Concrete must have specific strength. Locating the dowels and levelling shims are located in the correct spot. Room for crane outriggers, broom swings and counterweight tail swings. d) safety procedures to be followed during lifting and placing of the panels. When panels are lifted with the rigging equipment, it must be in view of the crane operator & dogman All personnel must be outside of the loading and drop zone No personnel should position themselves under a precast element Minimum of two braces must be connected before lifting Unless specified by the project design engineer, there should be no less than two connections to support each precast elements No braces should be connected to another panel unless specified on the shop drawings Review of weather and ensuring that when wind is present no panels should be lifted. 4. List the industry professionals that would be required to be consulted for some aspect of the design and construction of this building. For each, explain what LA023654, Assessment 4, CPCCBC4011B, Edition number 4 5 © New South Wales Technical and Further Education Commission, 2020 (TAFE NSW), Version 2, September 2020
involvement they will have and what input/advice they would be able to provide. Present this in a table. (Note: you should have at least 5 professionals) Industry Professional Role and Responsibilities Architects In charge of the design and project planning. Responsible for the visual appearance of the building and structures Structural Engineers Configuration of Structures, Selection of appropriate building materials, Inspection of construction work and ensuring the structural soundness of buildings and structures Builder/Principal Contractor The builder/principal contractor is the person who controls the operations of the construction site. Planning the onsite movement and prefabricated concrete elements. Precast Installer This professional is responsible for the erecting process – precast and tilt-up concrete elements. Responsible for the design of the erection of precast elements including shop drawings Building Surveyor Building surveyors provide independent oversight of buildings and building work throughout the construction process and upon completion of construction to ensure that buildings are safe for use, accessible and energy efficient. 5. Research a permanent polymer formwork system for wall construction (such as; Ritek, Dincel, AFS, MSProWall, Permaform). In a table, briefly report on the following aspects of your chosen system (20 - 50 words on each): Description of the components of the system (what is it made of and how is it held together) How the wall system contributes to the structural capacity of the building How quality is maintained Potential problems with quality/structural integrity How the product and its installation meets requirements for bushfire, high wind, earthquake and alpine environments Handling details Fire resistance Compatibility of cladding systems Allowance for services Quality control during installation Installation of windows and doors Connection details and tools required 6 LA023654, Assessment 4, CPCCBC4011B, Edition number 4 © New South Wales Technical and Further Education Commission, 2020 (TAFE NSW), Version 2, September 2020
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Note to students: include brief but relevant and significant aspects, not irrelevant detail. (Recommendation: http://afsformwork.com.au/wp- content/uploads/2016/02/AFS_LOGICWALL%C2%AE-Design-Guide.pdf or https://www.dincel.com.au/resources/type/dincel-manuals/ or https://permaform.com.au/ ) AFS Description of the components of the system (what is it made of and how is it held together Made of lightweight sandwich panels from hard- wearing fibre cement sheets bonded to galvanized steel stud frames. The panels are rapidly and easily assembled on site, then core-filled with concrete to create load bearing, fire- and sound-resistant walls. How the wall system contributes to the structural capacity of the building More internal space is provided by the high strength, thinner walls. The walls act to lessen the dead weight on the structure, as well as deep beams and transfer walls, which help to reduce the size of the floor slab The system offers high lateral load resistance and wind and seismic load capacity It reduces the thickness of the beams and eliminates the need for traditional beams. How quality is maintained It a creates polished concrete walls with a substantial feel. It is durable and finished fiber cement sheets were used on both sides for better quality. The system provides accuracy in floor to floor wall alignment resulting in straight and plumb lines Potential problems with quality/structural integrity Internal finishes have an effect on the quality of installation The external coating system must be applied according to manufacturer’s instruction How the product and its installation meets requirements for bushfire, high wind, earthquake and alpine environments High Winds: uses standard braces that are engineer certified Earthquake: it follows the AS1170.4 Earthquake Actions in Australia Alpine environment: extra passes and gelling time is required when considering the number of concrete passing for the core fillings of the wall. Handling details Panels are stacked flat, off the ground on a level platform or on support members. The full width of the panels must extend and have a LA023654, Assessment 4, CPCCBC4011B, Edition number 4 7 © New South Wales Technical and Further Education Commission, 2020 (TAFE NSW), Version 2, September 2020
spacing of 800mm from the centres. A crane must be used when handling pallets of panels to the working deck and delivered close to the erection site. Fire resistance A wall system under fire test that carries its load for 240 minutes and maintains its integrity and insulation for 240 minutes is given a FRL of 240/240/240, i.e. 240 minutes structural adequacy, 240 minutes integrity and 240 minutes insulation. Underwent the testing for the requirement of the AS 1530. Test in 2004 and 2011 showed a Fire Resistance Level of 240/240/180 Compatibility of cladding systems Provides an effective structural substrate for a range of cladding systems. Flexible designs to create unique and aesthetic look. Comes in variety of colour and texture. Comes with innovative fixing system for fast installation. Allowance for services Allowance should be made for the following services, plumbing, electrical, and mechanical. Quality control during installation Quality assurance is done after the or during the following procedures to ensure: o Removal of temporary patches o Repair of panels when presence of bulge o Repair of voids o Cleaning and tidying Installation of windows and doors It is considered during the contract phase. Coordination activities are considered such as: Waterproofing square openings Rebates of window openings Chamfer windows openings Tolerance of the panels to suit the manufacturer’s windows. Connection details and tools required Connections are done in two ways structural and non- structural Structural: pre-cast is positioned during installation of AFS Non-structural: doesn’t matter if installed before or after the pre-cast Tools: PPE, hand tools, power tools, adhesive sealant, access tools, concrete pour tools 8 LA023654, Assessment 4, CPCCBC4011B, Edition number 4 © New South Wales Technical and Further Education Commission, 2020 (TAFE NSW), Version 2, September 2020
Task 2 – Roof systems This assessment task relates to a standard portal frame steel structure. Project: You must find a building that incorporates a steel portal frame (with at least a 12 m span) and that has exposed roof elements. You will need to take photographs of the structural frame of the walls and roof, as well as the roof components including cladding and roof plumbing. 1. Your selection of photographs should include clear images of: the wall column/rafter connection purlins roof plumbing any roof installations e.g. rooflights, ventilation cowls roof bracing roof sheeting a. Label or provide brief descriptions of all images. b. For each of the structural elements, identify the material, section properties, and structural function, and relate the section and material properties that contribute to its specific use (minimum 50 words each) . Structural Element Identify Material Section Properties Structural Function Properties that contribute to specific use Purlins Steel Provide intermediate lateral restrain to one flange. It functions to transfers gravity and lateral forces of the cladding to the primary steel frame. Connects roofing through to the rafters Strengthening LA023654, Assessment 4, CPCCBC4011B, Edition number 4 9 © New South Wales Technical and Further Education Commission, 2020 (TAFE NSW), Version 2, September 2020
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Roof Bracing Gal Steel brace Portal frames resist wind forces by inplan flexure. But longitudinal wind forces acting on the end walls must be transferred via roof bracing to the side walls and thence to the footings To prevent rotation or buckling when affected by wind or heavy loads Resistance and Strengthening Columns Steel Rigid joint, full strength, butt weld Connects column to rafter Strengthening Roof Installation Connection s and ties. Steel Strengthening against various loads The extent of the work comprises all roofing, roof plumbing and associated works. Strengthening 2. Sketch and label details (as sections or elevations) of a.the column/rafter connection b.either the rafter/purlin connection or the rafter/bracing connection 10 LA023654, Assessment 4, CPCCBC4011B, Edition number 4 © New South Wales Technical and Further Education Commission, 2020 (TAFE NSW), Version 2, September 2020
c. a roof penetration – include details of connections and flashing 3. Explain how the roof system performs structurally against dead loads, live loads and wind loads (using terms such as bending, tension, load transfer – at least 150 words). Include a sketch (or sketches) showing how dead, live and wind loads are transferred to the foundation. This roof system supports Dead and Live loads via the roof sheeting. Roof sheeting spans between purlins, the purlins span between rafters and the rafters are supported by columns. All these members are subjected to bending, Via the load path outlined above, dead and live loads are transferred to the columns and then building foundations. Column loads under live and dead loads will be primarily compression. The most common lateral load is a wind load. In some areas, wind areas, wind load is an important consideration when designing and building a barn or other structure. Wind loads act on the roof structure both inwards and outwards depending on the load combination, wind direction. Loads applied in an inward direction are supported as per Dead and Live loads, transferring loads to the foundations. Loads applied in an outward direction again use the same load path, however this load path is reversed with columns in tension rather than compression. It is important that roof sheeting and fixings are designed to resist tensile loads from net uplift (suction). LA023654, Assessment 4, CPCCBC4011B, Edition number 4 11 © New South Wales Technical and Further Education Commission, 2020 (TAFE NSW), Version 2, September 2020
4. For the portal frame/roof system: a.outline the construction method and sequence to construct the frame and roofing It is assumed that foundations works and slab on ground is already constructed. Portal frames are prefabricated offsite and trucked to site for erection. Firstly, assemble the braced bay (rafter, columns, ties, all rolled steel elements. Baseplates should be fastened snug tight to stabilize the frames, however the full design load will not be applied as roof sheeting has yet to be installed. Final TF tightening does not occur until all adjustments in frame geometry have been completed. Proceed by installing purlin, girts and fly-bracing. On completion roof sheeting may be installed. Finally plumbing services, lighting and fixtures are assembled. b.what codes and/or Australian Standards are relevant to the compliance requirements for this type of structure? AS1170 – Loading Code AS 1538 - Cold-formed Steel Structures Code AS4100 – Steel Structures AS 2159-1995 Piling - Design and installation AS 3600 Concrete Structures c. prepare an Inspection & Test Plan for ensuring the compliance of the roof construction with project documentation. 12 LA023654, Assessment 4, CPCCBC4011B, Edition number 4 © New South Wales Technical and Further Education Commission, 2020 (TAFE NSW), Version 2, September 2020
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Checklist I have : LA023654, Assessment 4, CPCCBC4011B, Edition number 4 13 © New South Wales Technical and Further Education Commission, 2020 (TAFE NSW), Version 2, September 2020 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.
o named my file appropriately. 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. 14 LA023654, Assessment 4, CPCCBC4011B, Edition number 4 © New South Wales Technical and Further Education Commission, 2020 (TAFE NSW), Version 2, September 2020