How We Approach Rigging in Live Buildings
Not every construction project involves an empty site.
Across hospitals, commercial offices, universities, retail facilities and other operational buildings, major equipment may need to be removed, replaced or installed while people continue to use the building.
For rigging teams, this changes the way a project needs to be approached. The lift itself may only represent one part of the operation. Access, noise, pedestrian movements, existing services, working hours and coordination with building management can all influence how and when the work takes place.
Here’s what our team considers when planning rigging works in a live building.
What Is a Live Building Environment?
A live building is generally an existing facility that remains occupied or operational while construction, maintenance or upgrade works take place.
Depending on the project, this could include:
Hospitals and healthcare facilities
Commercial offices
Universities and education facilities
Retail and mixed-use developments
Government buildings
Industrial and manufacturing facilities
Unlike a closed construction site, contractors may be working around building occupants, staff, customers, patients, students or ongoing operations. This means the work area cannot always be treated in isolation. The impact of the rigging operation on the wider building needs to form part of the planning process.
Access Can Be More Challenging Than the Lift
Getting equipment from A to B isn't always straightforward in an existing building.
Mechanical plant and other heavy equipment may be located on rooftops, in basements, within enclosed plant rooms or deep inside a building. Existing structures, narrow corridors, doorways, lifts, ceilings and operational areas can all restrict the available path.
Before work begins, the entire movement route needs to be considered. This can involve assessing:
Equipment dimensions and weight
Doorway and corridor clearances
Floor loading
Overhead obstructions
Existing structural elements
Crane access and positioning
Temporary openings or removal of building elements
The sequence required to move equipment through the building
Where conventional access isn't available, a more specialised rigging methodology may be required to safely manoeuvre equipment through restricted spaces.
Read More: Challenges In Restricted Access Constriction Sites
Building Operations Don't Stop Because Rigging Starts
When working in a live environment, construction often needs to accommodate the building rather than the other way around.
For example, a hospital will have areas where access and disruption need to be tightly controlled. Similarly, a CBD office building or university campus might sit alongside busy roads and pedestrian areas.
Mechanical plant replacement can add another layer of complexity. Removing chillers, air-handling units or other building services may require carefully planned shutdown periods to minimise the time critical systems are unavailable.
The best time to perform a lift therefore isn't necessarily the most convenient time for the construction team. Rigging projects need to account for how the facility operates and identify windows in which work can be completed with the least disruption.
Managing People Around the Work Area
On a conventional construction site, access is already tightly controlled. In a live building, contractors may be working only metres away from people who aren't involved in construction at all.
That makes separation between the work and building occupants particularly important.
Depending on the environment and scope, this may involve exclusion zones, temporary barriers, alternative pedestrian routes, spotters, traffic management or temporarily restricting access to certain areas.
Deliveries and equipment movements may also need to be scheduled around peak periods to avoid unnecessary interaction between construction activities and everyday building traffic.
Read Next: What We’ve Learned From Decades On Tier 1 & Tier 2 Projects
Existing Services Need to Be Understood
Live buildings are full of existing infrastructure.
Electrical services, fire systems, plumbing, communications, HVAC infrastructure and other services can all affect how demolition, rigging and installation works are carried out.
This is particularly important during plant replacement projects, where new equipment often needs to integrate with existing building systems.
Existing conditions may not always be obvious from drawings alone, either. Site inspections and coordination with builders, engineers, mechanical contractors and facility teams can help identify potential conflicts before equipment starts moving.
The Sequence of Trades Matters
Rigging in an existing building rarely happens independently.
Demolition may be required to create access before old equipment can be removed. Structural steel may need to be installed before new plant can be positioned. Building works may then be required to reinstate areas once the installation is complete.
Each stage can affect the next, so careful sequencing helps minimise any conflicts and keeps the different trades moving in the right order.
Where one contractor can provide multiple complementary scopes, it can also reduce some of the interfaces that need to be managed between separate teams.
Learn more about our end-to-end rigging services.
Communication Becomes Part of the Rigging Operation
Conditions on construction projects change, but in a live building those changes can affect more than just the construction itself.
A delayed delivery, altered access route or change in lift timing may also affect facility managers, tenants, other contractors and building occupants.
Clear communication between the rigging team, builder, mechanical contractor, crane crew, engineers and building management helps ensure everyone understands when work will occur, which areas will be affected and what needs to happen beforehand.
This is especially important when the operation depends on short shutdown windows, temporary closures or coordination between several trades.
Working in an operational building requires a different mindset from working on a clear construction site.
Our rigging team considers: How do we lift this equipment? Who and what will be around us? Which building operations could be affected? What needs to happen before and after the lift?
Considering these factors early can help identify access constraints, reduce unnecessary disruption and create a more coordinated programme for everyone involved.
At Millennium Rigging, we support builders, mechanical contractors and project teams with complex rigging operations across commercial and operational environments. With capabilities spanning rigging, demolition, structural steel and metalwork, and building works, our team can assist with multiple stages of equipment removal, movement and installation across Melbourne, Adelaide, Canberra, Hobart and surrounding regions.