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Structural system |
(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. |
Structural performance characteristics for school building context (include relevant NCC and AS/NZ codes) |
Who could you seek expert advice from about the structural integrity of the system or systems? |
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Footings |
e.g. engineer, surveyor, architect, draftsperson |
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Soil stability |
(A) Compact fill, stone hard-core, reinforcing elements, reinforced soil block (B) Polymer based soil stabilization |
Able to withstand the loads of the structure as per AS 5100 and with minimal settlement as set out in D025 and AS 5100.3 |
Structural engineer, surveyor |
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Floor system |
(A) Concrete slab, concrete pre-cast stair treads, blockwork, (B) composite floor structure made up of rolled UB or UC sections on in situ concrete floor slab through stud connectors. |
Able to withstand the dead and live loads of the structure |
Architect, structural engineer, mechanical and services engineer, draftsperson |
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Structural wall and wall cladding systems (including window and door installation and retaining walls) |
(A) masonry wall, 12mm wide glass curtain wall, fair-faced brickwork, plasterboard (B) precast flat panels (Cross wall construction) |
Able to transfer the dead and live loads of the structure to the foundations and slab footings. BCA 3.3.1.2, BCA 3.3.1.3, BCA 3.5.3, BCA 3.6.0 |
Architect, structural engineer, draftsperson |
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Structural roof systems and roof cladding systems |
(A) structural timber, structural steel lintels, (B) Single ply roofing membranes made up of PVC |
Able to withstand the wind loads, protect the structure from the elements BCA 3.5.1, |
Architect, structural engineer, draftsperson, services engineer |
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.
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 |
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 |
Coping/ sheathing |
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B |
Tray flashing overlapping the tray below by 75mm |
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C |
Gutter /collection tray |
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D |
Weep holes at maximum1200mm centres |
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E |
Corrugated iron sheets (roof finish) |
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F |
Mechanical fixing of the roof (timber battens) |
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G |
Timber truss |
Using the above diagram of the parapet wall, draw a 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:
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 site shall be arranged. The staff conducting the site analysis will be equipped with the existing site plan containing sewerage, drainage, telecommunication, electricity and other services connection plans. The staff will identify and map out the services that are may be affected during the demolition. In addition, the staff will carry out soil tests to determine the presence of any contaminants. Also, the appropriate site for waste disposal shall be identified. 7. Obtaining necessary statutory requirements The local authority shall be on the demolition works and all necessary certificates and permits acquired. 8. Design and installation of temporary structures A signboard shall be designed and installed in the site where it is clearly visible to the public. In addition, a temporary fence will be installed all around the site of demolition. 9. Site mobilisation and safety requirements The equipment and staff necessary for the demolition will be mobilised to prepare for the demolition on site. The staff shall be equipped with mud huts, protective boots and clothing and informed on the safety measures to be adhered to during the demolition. Al vegetation near the demolition site shall be covered with dust nets. All services on site will be disconnected or rerouted. All items will be removed from site. 10. Demolition The actual demolition works will commence. Materials such as concrete or brick that can be reused or recycled will be well removed from site and taken to an appropriate recycling plant. Once the demolition is complete, the land will be compacted and infills will be added to level the land. |
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:
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1. Types of retaining walls: · Block-wall retaining wall: Core filled block with N16-400 vertical dowels, drilled and grouted epoxy into the rock. · Reinforced retaining wall with 350mm reinforced concrete on a reinforced pad footing, and 150mm core filled block-wall 2. Membrane requirements: A minimum 20mm waterproofing membrane is required to be installed between the reinforced concrete and the core filled core structure. APP, EPDM or any other equivalent approved waterproofing can be used. 3. Affiliated subsoil drainage requirements: Open jointed perforated ground water and subsoil drain pipes will be required to be laid in trenches, following the slope of the land, and direct their output to a sump. This maintains the stability of the soils. 4. Props used for back-propping The types of back propping that Joe may use include one level ‘table form’ propping and 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)) |
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 and data connections · Water supply pipes · Rainwater gutters or drains |
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