Qualifications
Units of Competency
AHC80120 Graduate Diploma of Arboriculture
Elective Units
Elements describe the essential outcomes.
Performance criteria describe the performance needed to demonstrate achievement of the element.
Packaging of Core and Elective Units varies between RTO so please refer to the training.gov link for Packaging Rules and detailed information about each Qualification.
https://training.gov.au/training/details/AHCARB804
training.gov.au © Commonwealth of Australia
Elements and Performance Criteria
AHC80120 Graduate Diploma of Arboriculture
AHCARB804 Analyse tree structure and biomechanics
- 1. Determine existing physical loads and strengths of trees, branches and anchorage
- 1.1 Determine existing physical loads affecting trees
1.2 Identify source and factors causing stress on trees
1.3 Assess root plate environment and history for damage
1.4 Assess history of pruning operations to above and below ground components
1.5 Determine presence and extent of defects on trunk and root system
1.6 Assess strength and material properties of tree structural components
- 2. Determine wind load
- 2.1 Determine wind environment of tree
2.2 Determine surface area of structure exposed to wind
2.3 Determine crown surface area exposed to wind
2.4 Assess aerodynamic drag factor of tree crown
2.5 Estimate primary loads occurring in seasonal climatic events
2.6 Determine wind-load of prevailing stormy weather
2.7 Determine load and drag associated with saturated foliage
- 3. Determine structural integrity by static load testing
- 3.1 Determine static load on trees for structural integrity testing and estimate wind-equivalent load
3.2 Calibrate static load testing instruments according to manufacturer instructions
3.3 Conduct static tests according to instrument instructions and analysis procedures
3.4 Monitor loads and forces on trees to ensure safe limits to prevent damage
3.5 Record data from static tests according to workplace procedures
3.6 Compare data with benchmarks obtained from stable tree populations
3.7 Prepare a report on structural integrity testing of tree from the static load tests
- 4. Determine tree dynamic response
- 4.1 Investigate tree biomechanics using dynamic methods of analysis
4.2 Review complex models of tree dynamics analyses
4.3 Calculate mass of branches of tree to determine degree of open-grown
4.4 Calculate vector of force on tree
4.5 Determine tree dynamic response under defined wind loads
4.6 Prepare a report on structural integrity testing of tree from dynamic load analysis
- 5. Investigate and consolidate structural integrity data and create a structural integrity report
- 5.1 Investigate level of contribution of material properties in tree dynamics
5.2 Investigate dynamic effect of branches on natural oscillation frequency and damping effect
5.3 Determine level of contribution of form and morphology in tree dynamics
5.4 Review suitability of invasive and non-invasive methods of testing
5.5 Evaluate and determine likelihood of structural failure
5.6 Confirm level of anchoring potential of root system and stability of tree
5.7 Prepare a structural integrity report and provide to client