Elements and Performance Criteria

RANGE STATEMENT
The range statement relates to the unit of competency as a whole. It allows for different work environments and situations that may affect performance. Bold italicised wording, if used in the performance criteria, is detailed below. Essential operating conditions that may be present with training and assessment (depending on the work situation, needs of the candidate, accessibility of the item, and local industry and regional contexts) may also be included.
Assessment of structural requirements:
includes:
analysis of engineering drawings
evaluation of site physicality
identification of safe structural practices
may require actual site visits.
Adherence to legislative requirements is limited to:
domestic scale buildings (similar in characteristics to those of residential dwellings in terms of loading, construction and size and may include small industrial, commercial and public buildings).
Analysis includes:
'I' (moment of inertia) values
base unit mass, density, velocity, acceleration, force and stress
column changes in length, cross-sectional, restraints, material and eccentricity
cross-sectional geometry and common structural shapes
deflections for symmetrically loaded, simply supported timber beams of various shapes, spans and loads
directions of wind pressure loads
force on materials in tension, compression, stress, strain and elasticity
forces associated with levers identified by direction and value
forces for co-planar non-current force systems
load differences, including:
dead load
live load
wind load
earthquake load
minimum bracing requirements
removal of trusses
restraints for use with beams
second area moments and deflection of beams
simple roof truss transmission force
structural properties differentiated for common materials
symmetrically loaded simply supported situations for:
bending moments
deflection
shear forces
torsion
tension and compression stresses of roof members
wind forces and wind velocity for bracing.

EVIDENCE GUIDE
The evidence guide provides advice on assessment and must be read in conjunction with the performance criteria, required skills and knowledge, range statement and the Assessment Guidelines for the Training Package.
Overview of assessment
This unit of competency could be assessed in the workplace or a close simulation of the workplace environment, provided that simulated or project-based assessment techniques fully replicate construction workplace conditions, materials, activities, responsibilities and procedures.
Critical aspects for assessment and evidence required to demonstrate competency in this unit
A person who demonstrates competency in this unit must be able to provide evidence of the ability to:
comply with OHS regulations applicable to workplace operations
apply organisational management policies and procedures, including quality assurance requirements where applicable
assess, identify and report on findings for the design, positioning and sizing of structural members of at least one domestic scale building project or equivalent
provide reports to appropriate body/individual as determined by the project brief.
Context of and specific resources for assessment
This competency is to be assessed using standard and authorised work practices, safety requirements and environmental constraints.
Assessment of essential underpinning knowledge will usually be conducted in an off-site context.
Assessment is to comply with relevant regulatory or Australian standards' requirements.
Resource implications for assessment include:
an induction procedure and requirement
realistic tasks or simulated tasks covering the mandatory task requirements
relevant specifications and work instructions
tools and equipment appropriate to applying safe work practices
support materials appropriate to activity
workplace instructions relating to safe work practices and addressing hazards and emergencies
material safety data sheets
research resources, including industry related systems information.
Reasonable adjustments for people with disabilities must be made to assessment processes where required. This could include access to modified equipment and other physical resources, and the provision of appropriate assessment support.
Method of assessment
Assessment methods must:
satisfy the endorsed Assessment Guidelines of the Construction, Plumbing and Services Training Package
include direct observation of tasks in real or simulated work conditions, with questioning to confirm the ability to consistently identify and correctly interpret the essential underpinning knowledge required for practical application
reinforce the integration of employability skills with workplace tasks and job roles
confirm that competency is verified and able to be transferred to other circumstances and environments.
Validity and sufficiency of evidence requires that:
competency will need to be demonstrated over a period of time reflecting the scope of the role and the practical requirements of the workplace
where the assessment is part of a structured learning experience the evidence collected must relate to a number of performances assessed at different points in time and separated by further learning and practice, with a decision on competency only taken at the point when the assessor has complete confidence in the person's demonstrated ability and applied knowledge
all assessment that is part of a structured learning experience must include a combination of direct, indirect and supplementary evidence.
Assessment processes and techniques should as far as is practical take into account the language, literacy and numeracy capacity of the candidate in relation to the competency being assessed.
Supplementary evidence of competency may be obtained from relevant authenticated documentation from third parties, such as existing supervisors, team leaders or specialist training staff.