Project

Opal Hillside Aged Care Facility
Mt Hutton, NSW

Client

OPAL Aged Care

Construction Budget

$25m

Project Details

The development comprised:

• Construction of 128 bed residential aged care facility with an overall building footprint of over 6800m²
• Structure included 3 wings each of 3 to 4 storeys with one wing including and underground basement for services and amenities
• External carparking and access roads for servicing vehicles

Challenge Faced / Engineering Problem Solved:

• Variable founding conditions and large mine subsidence ground strains required sliding bearing pads and compressible material around footings
• Variable earthquake design requirements due to varying building levels, sliding bearing joints and requirements to support base shear forces
• Sloping site required detailed temporary shoring considerations and retaining wall design
• Detailed site internal roadworks modelling to facilitate suitable stormwater drainage and satisfying accessibility requirements on a steep site

Engineering Design Services / Reviews

• Earthquake and wind modelling, analysis and design
• Footing and pile foundations
• Ground slab and footing engineering design on sliding bearing pads to satisfy mine subsidence design requirements
• Structural concrete column and wall analysis and engineering design
• Suspended concrete floor slab and beam engineering analysis and design using both conventional and post tension design solutions
• Structural steel roof rafters, purlins and awning framing analysis and engineering design
• Civil Stormwater pipe and pit modelling, analysis and design
• Civil roadworks and pavement analysis and design
• Sediment and Erosion Control Design

Safe Strong Stable Solution

Construction systems used included:

• Building supported on reinforced concrete piles and pad footings due to varying footing levels for the building wings
• Stiffened waffle pod slabs and footings
• Reinforced block retaining walls
• Post-tension suspended concrete systems
• Structural steel framed roof and awnings

Project Type

Existing Building Demolition
New Building Construction

Engineering Type

Structural & Civil
Constructions Phase Services

Project Stages

• Site Investigation and Assessment of variable founding conditions
• Assessment of Mine Subsidence Design Requirements
• Structural and Civil Engineering Design and Documentation
• Design Workshops and Project Meetings
• Design Coordination with all Consultants, Client and Principal Contractor
• Safety in Design / Environmental Considerations
• Construction Phase Services – Site Inspections, RFIs, Shop Drawing Reviews