1. Presenter Tony Bosnich 2015
Planning and Organising Two Plant and Equipment -Cranes- ConstructioConstru cc 2 : Construction Practice 2 : 2012
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Presenter Tony Bosnich
2015
© Unitec New Zealand
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2. Learning outcomes
1.Analysis crane requirements for large commercial building 2.Consider options and confirm selection. This one of the most important plant Selection made for any project 3.Carry out Crane Demand Analysis to confirm validity of selection and highlight any problem areas. 4.Analysis options and put methods in place mitigate risk.
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3. 1.Analysis crane requirements for large commercial building
Analysis site constraints
Constraints and the way we deal with them are the single biggest factor affecting the overall success of the project
Run through check list 1.
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4. What are the crane constraints of this site
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5. Crane Lifting Specific Constraints
Heavy lifts
Large number of lifts
Big pours
Adjoining properties
Services - danger of contact
Communications
Movement on site of material
Public protection
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6. Activity Consider plan provided. 1
Activity Consider plan provided. 1. Identify constraints from list on previous slide. 2. What type of crane would be suitable? 3. Where should we locate it 4. What is configuration of base 5. Is it free standing or climbing 6. How do we erect it 7. How do we take it down upon completion
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7. Selection of Crane Which of these is suitable
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8. Where are we going to locate it
On our plan determine Location of largest lift? Where are we lifting from? Consider lifting circle ,location is governed by being able to lift from delivery position and place in finished location with out shifting crane.
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9. Location continued
Exterior of building? Inside building? Consider base Tracked Counter weights Cast insitu base or piles (Sacrificial) Study data sheet provided
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11. Luffing Tower crane

12. Crane Data Sheets
Look at sample . Note Lifting capacity varies with Radius from Centre and Revs or parts of lifting rope
In SOME construction cranes the primary use is not to INCREASE lifting capacity but rather to gain control over the lifting operation.
The more parts the smoother the lifting operation ,allows for very precise placing movements of loads
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13. Analysis data from Crane specification sheet
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14. Extending site establishment
Crane Demand Analysis
Is this crane suitable for the job? Consider all lifting requirements for typical floor. Check list structure only
Concrete
Columns
Walls
Beams
Floor system
Stairs
General
Construction screens
Safety
Extending site establishment
Other trades
Reinforcing steel
Precast
Columns
Walls
Beams
Floor system
Stairs
Formwork
False work
Slab
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