ENVS 10003 CONSTRUCTION LOG BOOK
Week 9: Detailing Strategies 2 Construction Workshop • Stress Testing • Box Beam construction Full Size 1:1 Detailing Drawing Tutorial • Construction Site Visit: 522 Collins St • Concrete pour • Tension rods • Glazed curtain window system eLearnings • Finish Work and Composite Materials • Wall finishes • Engineered composite materials • Flooring • Ceiling
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ENVS 10003 CONSTRUCTION LOG BOOK Construction Workshop 5th May 2014 Design brief: -Using the materials provided, construct a structure that will span a 1m gap and be as strong and rigid as possible, enough to substantially withstand a point load from directly above. Consider: • The material-what works best in tension and compression-why? • In what way will your structure utilise the material inherited qualities • How will your design maximise the load bearing capacity? Materials provided: • 3mmx100mmx1200mm brace plywood X2 • 30mmx40mmx1200mm structural pine X2
Extra materials provided: • Handsaw • Measuring tape • Various types of nails • Bench hooks • Hammer • Power drill • Timber screws • Square 110
ENVS 10003 CONSTRUCTION LOG BOOK Design:
Plasterboard Nails
30mmx40mmx1200mm Structural Pine
3mmx100mmx1200mm Brace Plywood
Timber Decking Nails
Note: Plasterboard nails were used as they have a wider surface area on the head, thus a greater purchase between the pine and plywood
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ENVS 10003 CONSTRUCTION LOG BOOK Materials used in construction: • 3mmx100mmx1200mm Brace Plywood X2 • 30mmx40mmx1200mm Structural Pine X2 • Plasterboard Nails • Timber Decking Nails Final Product:
Plasterboard nails
Cracks in timber due to nails at each end
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ENVS 10003 CONSTRUCTION LOG BOOK Stress Testing: The device that we used was similar to the device shown here, however it was hand driven.
http://www.frontiersin.org/files/Articles/63674/fbioe-01-00013-HTML-r1/image_.jpg Device we used for stress testing:
Digital Pressure readout Deflection ruler Crosshead
Impact point
Specimen
Supports
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ENVS 10003 CONSTRUCTION LOG BOOK Stress Testing Result: Our structure withstood 380kg of stress before failing in the centre
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Structure shattered in the centre where the mass was applied
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Shattered where a nailed had weakened the structural integrity
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Faired pretty well relative to other designs-small fracture rather than complete collapse
Point of failure Peer designs:
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ENVS 10003 CONSTRUCTION LOG BOOK Full Size 1:1 Scale Detail Drawing
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ENVS 10003 CONSTRUCTION LOG BOOK Tutorial CBD Construction Site Visit 522 Collins St Overview: As a group we visited the Construction Site of 522 Collins St, soon to be new, Premium office space. We were given an overview of the various components and construction principled employed in the buildings construction and fabrication. The following show the construction techniques employed on site:
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Tension rods: increase the strength and rigidity of concrete once set
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Reinforcing for concrete
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Corrugated alloy sacrificial formwork for concrete
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Temporary formwork for concrete
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Onsite power
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Tension rods
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Temporary crane
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Concrete pump
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Mechanical system piping
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Set concrete
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Service corridor
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Formwork impression
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Concrete pour process: Pumped up form cement trucks on the base level floor, pumped into the steel reinforcing’s, levelled, extruded and settled
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Concrete pump
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Bundles of steel rods for the tension casing
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Tension casing
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Arterial reinforcing
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Safety barriers
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Concrete pump mechanism
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Column reinforcing
Figures 1-8: 10th floor external concrete construction
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Internal steel sacrificial concrete formwork
Figures 9-10: 10th and 11th floor internal concrete formwork 120
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Fire system
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30mm polyurethane insulation board coated with sisalation paper to increase thermal insulation properties
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Temporary formwork
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Glazed curtain wall: unit system (pg. 93)
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Temporary safety barrier
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Hanging support system
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Space for glazed curtain wall system installation
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Theodolite
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Glazed curtain wall units
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Installation process: units are hung from a series of cantilevered rails, which are fixed to the above concrete floor. They are then connected with a system of weather proof stripping and galvanised steel brackets. All curtail walls are non loadbearing
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Galvanised steel bracket
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Concrete bracket
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Weatherproof stripping
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Temporary safety barrier
16. Figures 11-16: 4th and 5th floor glazed curtain wall installation process 123
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Reinforced steel pylons are a structural as well as an aesthetic feature
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Open foyer integrates the structure with the landscape
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Mechanical systems-climate control
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Temporary cover paper-protect the surface
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Base of the temporary crane
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Exposed sacrificial formwork
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Location of photo
Figures 17-19: Ground floor superstructure 19. 124