Over het archief
Het OWA, het open archief van het Waterbouwkundig Laboratorium heeft tot doel alle vrij toegankelijke onderzoeksresultaten van dit instituut in digitale vorm aan te bieden. Op die manier wil het de zichtbaarheid, verspreiding en gebruik van deze onderzoeksresultaten, alsook de wetenschappelijke communicatie maximaal bevorderen.
Dit archief wordt uitgebouwd en beheerd volgens de principes van de Open Access Movement, en het daaruit ontstane Open Archives Initiative.
Basisinformatie over ‘Open Access to scholarly information'.
| [ meld een fout in dit record ] | mandje (0): toevoegen | toon |
 |
| Structural integrity and hydraulic stability of dolos armour layers Burcharth, H.F. (1993). Structural integrity and hydraulic stability of dolos armour layers. Series paper. Hydraulics & Coastal Engineering Laboratoy, Aalborg University, 9. Aalborg University: Aalborg. v, 148 + appendices pp.
Deel van: Series paper. Hydraulics & Coastal Engineering Laboratoy, Aalborg University. Aalborg University. ISSN 0909-4296, meer
|
| Beschikbaar in | Auteur |
| |
| Documenttype: Doctoraat/Thesis/Eindwerk | |
| Trefwoorden |
Stability Stability Structures > Hydraulic structures > Barrages > Dams Structures > Hydraulic structures > Coastal structures > Coast defences Structures > Hydraulic structures > Coastal structures > Coast defences > Breakwaters |
| Auteur | Top | |
|
| Abstract |
The method is based on experimental data from small scale flume tests as well as impact loading of prototype and small scale units. A prerequisite for this is the development of a method for full scale impact testing of prototype units. The method which produces repeatable results is applicable also for quality assessment of the concrete, and is widely used today. The theoretical background for the work is the separation of the loads and related stresses into three classes: static, pulsating and impact. In principle each type is described independently, and separately scaled by appropriate scaling laws to prototype sizes. The complex stress field is characterized by the maximum principal tensile stress acting in defined critical sections. This one-parameter characterization makes it possible to develop simple design diagrams for engineering purposes. Specific design diagrams for integrity of Dolos armour units with the waist ratio as a variable have been produced. A universal diagram for the evaluation of fatigue due to quasi-static and impact loading of unreinforced concrete is presented. The diagram is partly based in fatigue impact tests performed with Dolosse. A formula for hydraulic stability of Dolos armour has been developed. The stability in terms of relative number of displaced units is expressed as the function of the incident sea state, the Dolos waist ratio, the laying density and the number of waves. The uncertainty of the formula is evaluated and related partial coefficients calculated. Examples of the use of the design diagrams are given. The design diagrams are evaluated by comparison with the observed behaviour of prototype structures. |
| Top | Auteur |
