THIN-WALLED LARGE-DIAMETER COMPOSITE PIPES
| Autor: | S J Van Vuuren, K C Waelbers, S J V Vuuren, E P Kearsley |
|---|---|
| Rok vydání: | 1996 |
| Předmět: |
Materials science
Canalisation business.industry fungi education Composite number technology industry and agriculture Stiffness Structural engineering Deflexion Composite construction Cracking Deflection (engineering) medicine High-density polyethylene medicine.symptom Composite material business Civil and Structural Engineering |
| Zdroj: | Proceedings of the Institution of Civil Engineers - Municipal Engineer. 115:144-150 |
| ISSN: | 1751-7699 0965-0903 |
| DOI: | 10.1680/imuen.1996.29148 |
| Popis: | A South African steel pipe manufacturer approached the Department of Civil Engineering at the University of Pretoria to determine the behaviour of composite steel and concrete pipes to be used in lieu of solid steel pipes. Under South African conditions great cost savings can be made by reducing the steel wall thickness and making up for this by adding a concrete layer. The large-diameter composite pipes consist of a thin steel pipe covered by reinforced concrete, which is then wrapped in high-density polyethylene. The investigation was conducted on large-diameter steel pipe sections and the results obtained used to determine the required stiffness for a composite pipe. A mathematical model was developed for designing composite pipes with stiffness equivalent to that of the steel pipes required by the American Water Works Association Manual M11. This model was calibrated with load deflection tests conducted on composite pipes. Some interesting aspects of this investigation will be discussed in this paper. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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