Browsing Norwegian Geotechnical Institute (NGI) Digital Archive by Author "Norén-Cosgriff, Karin"
Now showing items 1-14 of 14
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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 ... -
Building vibration induced by sonic boom - field test in Russia
Norén-Cosgriff, Karin; Belyaev, Ivan; Løvholt, Finn (Peer reviewed; Journal article, 2021)Infrasound and audible sound at very low frequency from sources such as military aircrafts, explosions and wind mills can induce building vibration involving both rattling and whole-body vibration strong enough to cause ... -
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 ... -
Dynamic Field Data from Offshore Monopile Wind Turbines - Assessment of Natural Frequencies and Damping
Norén-Cosgriff, Karin; Kaynia, Amir M. (Chapter, 2020) -
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, ... -
Estimation of natural frequencies and damping using dynamic field data from an offshore wind turbine
Norén-Cosgriff, Karin; Kaynia, Amir M. (Peer reviewed; Journal article, 2020)The dynamic characteristics of offshore wind turbines are heavily affected by environmental loads from wave and wind action and nonlinear soil behaviour. In the design of the monopile structures, the fatigue load due to ... -
Måleresultater etter fullskala sprengningsforsøk – hvor kraftige vibrasjoner tåler en bygning før det oppstår skader
Norén-Cosgriff, Karin; Ramstad, Nils (Conference object, 2019)Grenseverdier for sprengningsvibrasjoner fastsettes på grunnlag av NS 8141 Vibrasjoner og støt. Bergsprengning kan gi så kraftige vibrasjoner at det forårsaker skader på tilstøtende byggverk. Det er imidlertid sjelden at ... -
Numerical Wavenumber Integration for 2.5D Wave Equation Solution
Park, Joonsang; Norén-Cosgriff, Karin; Kaynia, Amir M. (Chapter, 2020) -
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 ... -
The new museum of the Viking Age – Assessment of vibration from groundworks to avoid damage to artefacts
Norén-Cosgriff, Karin; Ellingsen, Ståle; Resvoll, Richard; Hov, Sølve (Peer reviewed; Journal article, 2022) -
Vibration induced damage due to construction work – Blasting tests
Norén-Cosgriff, Karin (NGI-rapport;20170774-D4.2, Research report, 2021-12-01)In this study, two instrumented blast test series were performed in a rock quarry in Norway. For the first test series, two buildings were erected, one made of Light Expanded Clay Aggregate (Leca) blocks, and one in ...