• A new method for estimation of critical speed for railway tracks on soft ground 

      Norén-Cosgriff, Karin; Berggren, Eric Gustav; Kaynia, Amir M.; Dam, Niels Norman; Mortensen, Niels (Peer reviewed; Journal article, 2018)
      This paper presents a new method, ETL (EBER Track Lab), which allows for estimation of critical speed from measurements from a running train at normal speeds. Hence, large distances can be covered in short time. The method ...
    • Advantages and limitation of using 2-D FE modelling for assessment of effect of mitigation measures for railway vibrations 

      Norén-Cosgriff, Karin; Bjørnarå, Tore Ingvald; Dahl, Birgitte Misund; Kaynia, Amir M. (Peer reviewed; Journal article, 2019)
      This paper addresses mitigation measures against railway vibrations in soft soils by use of FE calculations. In order for calculation models to be used as design tools, it is essential that they are relatively easy to set ...
    • Building damage due to vibration from rock blasting 

      Norén-Cosgriff, Karin; Ramstad, N.; Neby, Arild; Madshus, Christian (Peer reviewed; Journal article, 2020)
      Construction activities such as blasting, piling, compaction, excavations, and construction traffic can produce vibrations of sufficient strength to cause damage to neighbouring buildings and structures. Therefore, many ...
    • Database og verktøy for prediksjon av anleggsvibrasjoner 

      Norén-Cosgriff, Karin; Dahl, Birgitte Misund (NGI Rapport;20170115-01-TN, Report, 2017-12-21)
      Formålet med GBV prosjektet "Database og verktøy for prediksjon av anleggsvibrasjoner" har vært å samle NGIs måledata for anleggsvibrasjoner, og med støtte fra måledata utvikle empiriske verktøy for beregning av ...
    • Effect of track defects on vibration from high speed train 

      Kaynia, Amir M.; Park, Joonsang; Norén-Cosgriff, Karin (Peer reviewed; Journal article, 2017)
      The response of railway tracks and trackside vibration are strongly governed by the quality of the track. Defects or non-homogeneities in the track/substructure/ground can remarkably increase the responses in the system, ...
    • REDWIN – REDucing cost in offshore WINd by integrated structural and geotechnical design 

      Skau, Kristoffer Skjolden; Page, Ana M.; Kaynia, Amir M.; Løvholt, Finn; Norén-Cosgriff, Karin; Sturm, Hendrik; Andersen, H.S.; Nygaard, Tor Anders; Jostad, Hans Petter; Eiksund, Gudmund Reidar; Havmøller, O.; Strøm, P.; Eichler, D. (Peer reviewed; Journal article, 2018)
      The cost of offshore wind energy production has to be reduced continuously to improve its competitiveness compared to other energy sources. To contribute to this goal, a 4- year research project REDWIN – REDucing cost of ...
    • Simulating low frequency sound transmission through walls and windows by a two-way coupled fluid structure interaction model 

      Løvholt, Finn; Norén-Cosgriff, Karin; Madshus, Christian; Ellingsen, Ståle Engvik (Peer reviewed; Journal article, 2017)
      Aircraft, supersonic flights, blasts, and explosions emit sound with substantial energy below 100 Hz. When the low frequency sound is transmitted inside a building, it generates vibration and rattling that may lead to ...