IAHR, founded in 1935, is a worldwide independent member-based organisation of engineers and water specialists working in fields related to the hydro-environmental sciences and their practical application. Activities range from river and maritime hydraulics to water resources development and eco-hydraulics, through to ice engineering, hydroinformatics, and hydraulic machinery.
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You are here : eLibrary : IAHR World Congress Proceedings : 36th Congress - The Hague (2015) FULL PAPERS : THEME 4- WATER ENGINEERING : RELIABILITY OF EXISTING HYDRAULIC STRUCTURES
Hydraulic structures are long-living infrastructure assets which have to some extent a high risk potential. Waterway structures in Germany have an average lifespan of 65 years already, about 25% of the structures have already passed their theoretical service life of 100 years. By aging and degradation, by changing of environmental conditions with time, but also by changes of safety concepts and proof formats in codes existing structures must be evaluated within a statical verification or a risk analysis. This is not possible with the standards that have often been usually designed only for new structures. The application of these ?new structure? standards leads to a conceptional aging, where the bearing capacity is not given by computational figures. However this does not correspond to reality. In addition, limited resources prohibit to meet the safety standard ever for new structures during a cycle of use, and thus to negate the aging. A concept for the reliability of massive hydraulic structures had been developed, where - the remaining lifetime, - the possible modification of basic variables on the action and resistance side after some detailed on-site inventory and - risk considerations are comprised.
File Size : 709,732 bytes
File Type : Adobe Acrobat Document
Chapter : IAHR World Congress Proceedings
Category : 36th Congress - The Hague (2015) FULL PAPERS
Date Published : 19/04/2016
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