Ostanes Engineering provides structural engineering assessment of as-constructed deviations in Brisbane. We consider site conditions such as reactive clay profiles and undocumented rock when assessing the changed design.
Structural Engineering Challenges for As-Built Deviations in Brisbane
During complex construction projects in Brisbane, on-site conditions often force builders and commercial developers to deviate from original approved plans—particularly when encountering unexpected reactive clay profiles (AS2870) or undocumented rock. These deviations, if uncertified, can pose structural risks and may delay project handover while the changes are assessed.
Ostanes Engineering assesses these structural deviations and documents the engineering findings. Verification of construction and the final certificate remain with the certifier.
Documentation for Your Approval Process in Brisbane
Depending on the agreed scope, Ostanes Engineering can provide the following engineering documentation. Your private building certifier decides what the final certificate requires:
- Design review of the changed design: Engineering assessment of the as-constructed deviation, with a Form 15 for the revised design where included in the agreed scope. Form 15 concerns design; it is not proof that construction is complete.
- As-built structural drawings: Detailed plans reflecting the actual construction, incorporating any necessary modifications to the original design.
- Inspection evidence: Site inspection records and documentation, where we are appointed, to assist the certifier. The applicable inspection certificate depends on the appointment, building class and stage.
Designed to Strict Australian Standards (AS)
All structural designs and certifications provided by Ostanes Engineering are prepared with reference to the National Construction Code (NCC) and relevant Australian Standards, including:
- AS3600-2018: Concrete structures.
- AS4100-2020: Steel structures.
- AS2870-2011: Residential slabs and footings (where reactive clay profiles are a factor).
Servicing Brisbane and Surrounding Suburbs
Ostanes Engineering is actively partnering with Brisbane builders and developers to assess as-built structural deviations on residential, commercial and multi-residential projects in Brisbane.
