- Project Overview:
This Newcastle duplex development combines contemporary architectural design with robust structural engineering. Located in Newcastle, the project is tailored to local coastal conditions, geotechnical characteristics, and wind classifications, while meeting the National Construction Code (NCC) and relevant Australian Standards. - Foundations & Substructure:
- Reinforced concrete strip footings and slab-on-ground systems designed per AS 2870, addressing soil reactivity, differential settlement, and bearing capacity.
- Termite barriers and damp-proof membranes protect ground-level habitable spaces.
- Ground Floor Structure:
- Reinforced concrete slab-on-ground forms the base structure, supporting internal partitions and vertical loads.
- Load-bearing masonry and reinforced concrete walls transfer loads effectively to the foundations.
- Upper Floor Structure:
- Suspended reinforced concrete slabs span between load-bearing walls and concealed structural steel framing.
- Engineered for stiffness, minimal vibration, and acoustic separation between duplex units.
- Roof & Feature Overhangs:
- Lightweight roof framing (timber or structural steel) supported by reinforced concrete and steel beams.
- Extended flat roof canopy with integrated feature lighting, supported by concealed structural steel, designed to withstand local wind pressures per AS/NZS 1170.2.
- Façade & Architectural Elements:
- Central vertical stone-finished wall serves both as an architectural focal point and load-bearing structural element.
- Cantilevered first-floor projections and balcony planters are formed using reinforced concrete slabs with secondary steel framing.
- Vertical batten façade screens are fixed to concealed framing connected to the main structure.
- Lateral Stability:
- Reinforced concrete shear walls, diaphragm action of suspended slabs, and discreet steel bracing ensure resistance to wind and seismic forces in line with AS 1170.4.
- Materials & Durability:
- Reinforced concrete designed per AS 3600 with exposure classifications suitable for a coastal-urban environment.
- Structural steel to AS 4100 with protective coatings and hot-dip galvanizing for external elements.
- Masonry detailed to AS 3700, incorporating control joints for shrinkage and thermal movement.
- Services Integration:
- Coordinated service penetrations through slabs and walls for hydraulic, electrical, and architectural layouts without compromising structural capacity.
- Provision for concealed drainage within balcony slabs and planter boxes to protect internal and façade structures.
- Compliance & Standards:
- National Construction Code (NCC) Vol. 2
- AS 1170 – Structural Design Actions
- AS 2870 – Residential Slabs and Footings
- AS 3600 – Concrete Structures
- AS 4100 – Steel Structures
- AS 3700 – Masonry Structures
- AS 1684 – Timber Framing Code
Key Takeaway:
A Newcastle duplex where modern design and structural excellence converge. The development balances aesthetic ambition with engineering precision, ensuring durability, safety, and long-term performance in a coastal urban setting.
