top of page
MIS310 – Tree Support Systems (Non-Member Price)

A Minimum Industry Standard for Tree Support Systems

 

This standard covers the work tasks of specifying and installing tree support systems, including bracing, cabling, guying and propping trees. A brief summary is provided of the underpinning knowledge necessary to select and install suitable support systems.

 

About the MIS Series

 

This book is one in a series of Minimum Industry Standards (MIS) produced by Arboriculture Australia Ltd and the New Zealand Arboricultural Association in consultation with the national arboriculture community in both countries. These industry peer-reviewed documents provide a ‘body of knowledge’ which is shared by practitioners and can be used as the basis for training, dissemination of skills and professional development.

MIS310 – Tree Support Systems (Non-Member Price)

$55.00Price
  • 1: Introduction to tree support systems

    Tree support system process and responsibilities

    Tree support systems and liability

     

    2: Tree structure and health 

    Introduction to forces in structures 

    Force, lever arm and bending moment

    Stress

    Tree structure 

    The tree as a biomechanical structure

    Axiom of uniform stress

    Thigmomorphogenesis

    • Impact of support systems on thigmomorphogenesis

    Strategy of flexibility

    Mass damping

    Impact of support systems on dynamic movement

    Shock loading

    Torsional failure

    Growth habit and structure

    Branch and stem attachment

    • Strength of branch and stem unions
    • Co-dominant stems
    • Crossing or rubbing branches
    • Natural bracing
    • Species and structure

    Tree health

    The tree as a living organism

    Tree physiology

    Sapwood and hardwood

    Tree bark

    Compartmentalisation and barriers to decay

    Occlusion

    Biosecurity and transmission of pathogens

     

    3: Designing and installing support systems 

    Identifying the need for a support system

    Factors for consideration

    • Checklist for specifying a structural support system

    Preparatory pruning 

    Performing works

    Classes of preparatory pruning

    • Reduction pruning
    • Branch or stem weight reduction
    • Weight reduction: thinning
    • Weight reduction: reduction pruning
    • Pruning classes for weight reduction
    • Example: heavy weight reduction pruning
    • Retrenchment pruning

     

    3.1 Cabling 

    Cabling systems: catch or support

    Steel and textile cable systems

    Cable system plans

    Location of the system

    System tension and elasticity

    Determining the required strength of the system

    Method 1: use of a standard size chart

    Method 2: estimating the load

    • 1: Estimate the weight of the section
    • 2: Calculate the bending moment at a given point
    • 3: Determine the required load rating of cable system
    • Installation recommendations for cable systems

    Specifying the design of a cable system

    Installing a cabling system

    1: Installing a textile system

    • Required tools and materials
    • Installation instructions for textile cable systems

    2: Installing a steel cabling system

    • Tools and components for a steel cable system
    • Cable termination
    • Installation instructions for steel cable systems
    • Cable anchor installation

    Cable system inspection and maintenance

    Re-cabling

     

    3.2 Bracing

    Designing a bracing system

    • Bracing system types

    Determining the required strength of the bracing system

    Method 1: use of a standard size chart

    Method 2: estimating the load

    • Determining load rating of bracing system
    • Example: calculating load rating of a bracing system

    Specifying the design of a bracing system

    Installing bracing

    • Tools and components for a bracing system
    • Installation instructions for bracing

    Bracing system inspection and maintenance

     

    3.3 Guying

    Designing a guying system

    Required strength of guying system

    Number of guys

    Installation of guying systems

    Guying system inspection and maintenance

     

    3.4 Propping 

    Types of prop

    Designing propping systems

    Specifying propping systems

bottom of page