Longitudinal Prestressed Piping for District Heatingby Marvin B. Gardner, Jr., M. B. Gardner Co, Roselle Park, NJ, USA,
Abstract: The design of recently installed hot water district heating systems in the United States is based on similar systems developed in Europe. Longitudinal prestressing is used in the design of the system to limit or prevent longitudinal motion of the buried pipe. Prestressing has been used in this country in the design of submerged offshore pipelines. Both the single pipe with bonded and jacketed insulation system, and the steel in steel system are being prestressed. Because this is a developing technology, testing is warranted to ensure progress.
Subject Headings: Prestressing | Pipes | Steel pipes | Temperature effects | Buried pipes | Building insulation | Motion (dynamics) | Structural design | Pipeline design | North America | Europe | United States
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