This assessment has been designed to allow you to provide partial evidence of your competence in the unit CPCCBC5018A Apply structural principles to the construction of medium rise buildings.In completing your final assessments, you will show evidence of your ability to understand:
- What a medium rise building is.
- Performance characteristics of the structural elements, including materials identified in the building's plan and the safe co-ordination of demolition.
- Knowledge of foundation materials, and the applications of retaining walls.
- Structural function and requirements for temporary structural elements.
- Types of footing systems.
- Performance characteristics of construction materials.
- The inclusion of services in construction elements.
- Knowledge of medium rise buildings compliance to codes and standards.
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Structural system
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(A) Two examples of existing materials as per the plan sets.
(B) Include at least one new and emerging building technology that could be used in lieu of the existing.
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Structural performance characteristics for school building context (include relevant NCC and AS/NZ codes)
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Who could you seek expert advice from about the structural integrity of the system or systems?
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Footings
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For example
(A) A tank structure made of concrete, the floor slabs made of concrete and strip footings made concrete and ramp structure made of concrete.
(B) Waffle pod slabs; examine the alternatives made of light weight concrete.
Fibercon – fibre that is strengthened with concrete
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For example,
Convenient bearing capacities of the load for school as well as car parks context for instance lower ground, first, second floor as well as car park (the type of soil, condition of the climate and many more.)
(As per compliance with NCC/BCA Volume 1, section B specs, Section J specs, section G3 specs, section A1 and section A specs. Also, Part G5 (bushfire)
AS/NZ 1170.2 https://law.resource.org/pub/nz/ibr/as-nzs.1170.2.2011.pdf)
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For example
Surveyor, engineer, draftsperson and architect
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Soil stability
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(A) firm fill, hard-core made of stone, strengthening elements, strengthened block of soil and a base stabilized with Polymer soil
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Capable to hold structure load according to AS 5100 with little settlement as shown in D025 AND AS5100.3
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Surveyor
Engineer of structures
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Floor system
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(A) slab made of Concrete, the treads of pre-cast stair made of concrete and block work
(B) The structure of composite floor that comprises of rolled UC or UB parts on in situ made of the floor slab made of concrete and passed through connectors of the stud.
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Capable to hold the structure dead and live loads.
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Structural engineer, draftsperson, mechanical and service engineer and architect
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Structural wall and wall cladding systems (including window and door installation and retaining walls)
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(A) Wall of masonry, 12mm wall made of glass curtain, plasterboard and fair-faced brickwork. precast flat panels (construction of cross wall)
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Capable to transmit the structure dead and live loads to the slab footing as well as foundation
BCA 3.3.1.2, BCA 3.3.1.3, BCA 3.5.3, BCA 3.6.0
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Draftsperson, structural engineer and architect.
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Structural roof systems and roof cladding systems
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(A) structural steel lintels,
Structure of timber,
(B) PVC Single ply roofing membranes.
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Capable to hold the wind loads, safeguard the Able to withstand the structure from BCA 3.5.1 elements
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Service engineer, Architect, draftsperson and structural engineer,
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- Joe as site manager has found he needs to check some basic detailing for to ensure parts of the structure are adequately supported, and DPC and weather proofing requirements are met. See the part drawing below to start you off, the problem areas have been circled to make it easier. Then refer to your drawing set for the High school, specifically for full details before helping Joe with his problem.
Image: Part drawing High schoo
- The door such as this one “D14” is located in fairfaced blockwork (you will find all the abbreviation legends on Architectural drawing A-000). You may need to check other drawings to verify size, however Joe needs to know what would be acceptable as support for this opening in blockwork? Refer to Australian Standards: Part AS 4773.2for answer.
Describe or sketch your answer in the space below:
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Cavity flashings should be installed on the blockwork and wall ties shall be placed 300mm from the door opening as per AS 4773.2
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- The below section drawing captures an external wall drainage system, for a typical parapet wall. You are required to interpret this drawing and identify all building characteristics. Before you draw the section view, label each building characteristic as listed from A-G, in the below table.
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Name the following building characteristics
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A
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Coping/ sheathing
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B
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Tray flashing overlapping the tray below by 75mm
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C
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Gutter /collection tray
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D
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Weep holes at maximum1200mm centres
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E
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Corrugated iron sheets (roof finish)
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F
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Mechanical fixing of the roof (timber battens)
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G
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Timber truss
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Using the above diagram of the parapet wall, drawa detailed freehand Section in 2D, in the space provided below. Refer to the diagram and draw your section in line of the suggested arrow. (Drawing is not to scale)
- Planning for demolition – Review the High school plan set, specifically A-001 Site Plan with the view that the existing tennis courts shown (assume on a concrete slab base) and any surrounding fences and adjacent driveway into Tango avenue will also be demolished and removed from site. In preparation for the disturbed land area to be made-good, compacted and re turfed at the end of demolition.
Prepare a demolition plan for this area, considering:
- All items to be removed
- Possible recycling of any material (eg. Concrete)
- Inspections or testing for the possibility of contaminated soils under courts
- Appropriate disposal of all waste
- Making good and re-compaction of land to existing levels after demolition is complete, including the possible importing of fill
- Removal and / or capping off of any existing services, or discovered services during demolition
- Any required permits and licenses’
- Any temporary structure (road crossings, silt fences, etc)
- WHS requirements, fences, signage and so on.
Prepare a brief report to describe the demolition planning above, including all items described (Max 200 words).
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The demolition plan will follow the following steps:
1. Site visit and analysis
2. Obtaining the necessary documentation and statutory requirements
3. Design and installation of temporary structures for demolition
4. Site mobilisation and safety requirements
5. Demolition
6. Site visit and analysis
A visit to the location will be planned. The members carrying out the location analysis will be facilitated with the exiting location plan comprising of telecommunication, drainage, electricity, sewerage and several services lining plans. The members of staff will point out and locate the service that will be influence by the demolition. Furthermore, the assigned members will conduct soil tests figure out any contaminant presence. A convenient location to dispose waste will be located. Acquiring relevant statutory requirements.
The local authority will be present during the demolition works and all relevant permits and certificates obtained.
7. Design and installation of temporary structures
A billboard will be designed and fixed in the site where it can be easily noticed by all people. additionally, a temporary fence will be fixed all around the site of pulverization
8. Site mobilisation and safety requirements
The tools and necessary staffs for the demolition will be assembled to get ready for the demolition on location. The staff will be given with mud huts, safety boots and clothing and educated on the security measures to be considered during the demolition. All vegetation close to the site of demolition will be protected with dust nets. All services on location will be stopped or rerouted. All items will be expelled from site.
9. Demolition
The actual demolition works will start. Materials, for example, block or concrete that can be recycled or reused will be removed from site and taken to a suitable recycling plant. Once the demolition is finished, the land will be compacted and infill will be added to level the land.
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Retaining walls and temporary support – Joe has been looking over the plans for the High school job, specifically the structural details, drawings S1-02, S1-11, and S1-12. Which show a considerable amount of retaining walls and associated work. He is also concerned about temporarily supporting the slabs, “back propping” after they are poured, and wants to research some different types of props. You may remember studying these elements in this unit, specifically Topic 5.2.
Study the drawings and briefly describe the following:
- Types of retaining walls for this project, brick, block and so on
- Any membrane requirements
- Any affiliated subsoil drainage requirements
- Also research for Joe and give two examples of props that can be used for back-propping with their load ratings
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1. Retaining walls types:
· Block-wall retaining wall: Core filled block with N16-400 vertical dowels, drilled As well as grouted epoxy into the rock.
· Strengthened retaining wall with 350mm strengthen concrete on a firm pad footing, and 150mm core filled block-wall
2. Membrane requirements:
A minimum 20mm waterproofing film is needed to be fixed between the strengthened concrete and the centre filled a vital structure. Application, EPDM or any other comparable endorsed waterproofing can be utilized.
3. Affiliated subsoil drainage requirements:
Open jointed punctured ground water and subsoil drain channels will be needed to be laid in trenches, following the land slope, and direct their yield to a sump. This keeps up the soil stability.
4. Props used for back-propping
The back propping types that Joe may utilize comprise of include one level ‘table form’ propping as well as two level ‘table form’ propping.
· One level ‘table form’ propping:
One level propping allows more load distribution (wp) on the slabs (supporting slabs and lower slab (1))
· two level ‘table form’ propping:
Two level propping allows more load distribution (wp) on the props (back props and lower slab (3))
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Service provisions in the structure –This project has any other has the need to provide for the inclusion of all necessary services when we poor suspended slabs and associated formwork. Review the High School Drawings for the suspended first floor slab and compile a brief list of all the service provision you think should be allowed for in this suspended slab and affiliated formwork.
Write your list below:
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The services that should be included in the suspended slab include:
· Drainage pipes
· Electrical cables
· Water supply pipes
· Rainwater gutters or drains
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