Test Methods and Specifications
Incrementally Launched Prestressed Concrete Girders
- Publication no: ATS-5830-23
- Published: 25 May 2023
- Edition: 1.0
- PDF (free) Download
Austroads Technical Specification ATS 5830 sets out the requirements for the construction of prestressed concrete superstructures by incremental launching, including:
- the design and fabrication of the launching nose;
- the design and construction of the casting bed;
- the provision of the launching equipment, temporary bearings, temporary supports and lateral guides;
- launching operations; and
- installation of the permanent bearings.
The technical specifications can also be downloaded as a Word Document.
Implementation of this technical specification relies on the availability of technical specification ATS 5327 Post tensioning of Concrete which is in development. This technical specification has been published to allow Austroads member agencies to prepare for implementation.
- 1. Scope
- 2. Referenced Documents
- 3. Definitions
- 4. Quality System Requirements
- 5. Design
- General
- 6. Launching Nose
- General
- Launching Nose Jacks
- Fabrication of Steelwork
- Certification
- Installation of Launching Nose
- Attachment to the First Girder Segment
- 7. Launching Bearings
- General
- Fabrication of Launching Bearings
- Installation of Launching Bearings
- Elastomeric Sliding Pads
- Elastomeric Bearing Pads
- 8. Survey Control System
- 9. Manufacture of Segments
- General
- Method of Support for Formwork
- Segment Lengths and Overall Bridge Length
- Tolerances of Sliding Surfaces
- Tolerances in Installation Fittings
- Installation Tolerances of Top Attachment Plates for
- Permanent Bearings
- Removal of Formwork
- 10. Launching of Girders
- Launching Method
- Special Launching Provisions
- Safety Precautions During Launching
- 11. Installation of Permanent Bearings
- Annexure A: Summary of Hold Points, Witness Points and Records
Related publications
ATS-5410-23
ATM-000-23
ATS-5451-23
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