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- W2300292332 abstract "For the past 50 years, Australian composite slab construction has been at the forefront of technology. The major developments that have occurred over this period in this important form of construction are described. It began with the novel adoption of hightensile galvanised steel to form the profiled steel sheeting, which had twice the yield stress of mild steel. Similar high-tensile steel is used today in every Australian profiled steel sheeting, including the world's longest-spanning commercial system comprising hybrid box-sections with unpropped spans of up to 8.5 metres. Owing to a number of major developments including a small-scale bond test, steel in modern-day Australian profiled sheets generally bonds well enough in concrete to utilise most or all of its tensile strength, acting as main reinforcement in a composite slab. Anchoring the hybrid box-section's high-tensile base sheet is particularly effective: design advantages result where concentrated loads are located on a slab. A much more recent development (involving the formwork stage) has been to pre-camber the box sections, a form of prestressing that avoids temporary propping, and achieves a flat composite slab soffit without detrimental concrete ponding. Astute builders and designers recognise the overall commercial benefits that arise from these advances. Other developments allow the accommodation of two-way reinforcement arrangements, vertical and horizontal building services, and voids to reduce concrete volume and weight and correspondingly the size of permanent supports. Post-tensioning is also possible. Five decades of research and development for Australian composite slab construction is described." @default.
- W2300292332 created "2016-06-24" @default.
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- W2300292332 date "2010-01-01" @default.
- W2300292332 modified "2023-09-24" @default.
- W2300292332 title "Fifty Years of Major Developments in Australian Composite Slab Construction" @default.
- W2300292332 hasPublicationYear "2010" @default.
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