Blar i Institutt for konstruksjonsteknikk på forfatter "Øiseth, Ole Andre"
-
Aerodynamic damping models for vortex-induced vibration of a rectangular 4: 1 cylinder: Comparison of modeling schemes
Zhang, Mingjie; Xu, Fuyou; Øiseth, Ole Andre (Peer reviewed; Journal article, 2020)Accurate modeling of vortex-induced force acting on a structure is of great significance to precisely evaluate its vortex-induced vibration (VIV). This paper systematically compares the capabilities of five aerodynamic ... -
Aerodynamic Effect of Non-uniform Wind Profiles for Long-Span Bridges
Lystad, Tor Martin; Fenerci, Aksel; Øiseth, Ole Andre (Chapter, 2019)Long-span bridges are often designed based on the assumption of wind field homogeneity. At the Hardanger Bridge, the wind field along the bridge span is monitored though 8 triaxial ultrasonic anemometers. Simultaneously ... -
Aerodynamic Stability of Long-span Suspension Bridges
Dalen, Magnus Aa (Master thesis, 2016)A MATLAB script for making customized finite element models of suspension bridges is created. The main purpose of the script is to perform eigenvalue analysis of different bridge setups to investigate the controlling ... -
Aeroelastic stability of a suspension bridge crossing the Sognefjord
Røe Maurset, Håvard (Master thesis, 2012)This thesis discusses the possibility of constructing a suspension bridge crossing the Sognefjord in light of the aeroelastic stability. A preliminary design has been carried out and a finite element model created in order ... -
Automatic Operational Modal Analysis of a Long-Span Suspension Bridge
Neby, Emil (Master thesis, 2023)Overvåkning av konstruksjoner er viktig for sikker vedlikehold og drift, samt verifikasjon av numeriske modeller. Automatisk operasjonell modalanalyse (AOMA) har som mål å identifisere modale parametere som gir den viktigste ... -
Bridge buffeting by skew winds: A quasi-steady case study
Wang, Jungao; Jakobsen, Jasna Bogunovic; Øiseth, Ole Andre; Snæbjørnsson, Jonas Thor (Peer reviewed; Journal article, 2022)The buffeting response of a 5000-m-long curved floating bridge is investigated for different mean wind directions, with emphasis on the wind load formulations and use of experimental data. Wind tunnel tests, with a section ... -
Bridge buffeting by skew winds: A revised theory
Morais da Costa, Bernardo; Wang, Jungao; Jakobsen, Jasna Bogunovic; Øiseth, Ole Andre; Snæbjørnsson, Jonas Thor (Peer reviewed; Journal article, 2021)An improved bridge buffeting theory is established with an emphasis on skew wind directions, for both turbulence- and motion-dependent forces. It provides simplifications and generalizations of previously established ... -
Buffeting response of long-span bridges considering uncertain turbulence parameters using the environmental contour method
Lystad, Tor Martin; Fenerci, Aksel; Øiseth, Ole Andre (Peer reviewed; Journal article, 2020)Full-scale monitoring of the Hardanger Bridge has revealed significant turbulence-induced variability in the measured acceleration response. In this paper, a probabilistic model is used to describe the uncertain turbulence ... -
A comparative study of wind-induced dynamic response models of long-span bridges using artificial neural networks, support vector regression and buffeting theory
Fernandez Castellon, Dario Rafael; Fenerci, Aksel; Øiseth, Ole Andre (Journal article; Peer reviewed, 2021)Long-span cable-supported bridges are structures susceptible to high dynamic responses due to the buffeting phenomenon. The current state-of-the-art method for buffeting response estimation is the buffeting theory. However, ... -
Comparison of Measured and Predicted Buffeting Response of the Hålogaland Bridge Using a Probabilistic Description of the Wind Field
Solstad, Andrea Almenningen; Onstad, Elin Linnerud (Master thesis, 2022)Hengebruer med lange spenn er svært utsatt for vindindusert respons, på grunn av slankheten til disse konstruksjonene. Derfor er det viktig å kunne predikere responsen forårsaket av vind. Variabiliteten til vinden gjør det ... -
Comparison of Measured and Predicted Buffeting Response of the Hålogaland Bridge Using a Probabilistic Description of the Wind Field
Solstad, Andrea Almenningen; Onstad, Elin Linnerud (Master thesis, 2022)Hengebruer med lange spenn er svært utsatt for vindindusert respons, på grunn av slankheten til disse konstruksjonene. Derfor er det viktig å kunne predikere responsen forårsaket av vind. Variabiliteten til vinden gjør det ... -
Creating and Testing Continuous Acquisition Software with GPS Timestamps
Sandberg, Eirik Ferdinand (Master thesis, 2017)The main objective of this thesis has been to write software in LabVIEW enabling GPS time synchronization between several Compact RIOs when performing continuous acquisition of acceleration data. By providing GPS timestamps ... -
Data Set from Long-Term Wave, Wind, and Response Monitoring of the Bergsøysund Bridge
Kvåle, Knut Andreas Kirkestuen; Fenerci, Aksel; Petersen, Øyvind Wiig; Rønnquist, Nils Erik Anders; Øiseth, Ole Andre (Peer reviewed; Journal article, 2023)Wind, wave, displacement, and acceleration data have been collected in a measurement campaign on Norway’s Bergsøysund Bridge, an end-supported pontoon bridge, between the years 2014 and 2018. The data set is now available ... -
A data-based structural health monitoring approach for damage detection in steel bridges using experimental data
Svendsen, Bjørn Thomas; Frøseth, Gunnstein Thomas; Øiseth, Ole Andre; Rønnquist, Anders (Journal article; Peer reviewed, 2022)There is a need for reliable structural health monitoring (SHM) systems that can detect local and global structural damage in existing steel bridges. In this paper, a data-based SHM approach for damage detection in steel ... -
Data-driven prediction of mean wind turbulence from topographic data
Morais da Costa, Bernardo; Snæbjørnsson, Jonas Thor; Øiseth, Ole Andre; Wang, Jungao; Jakobsen, Jasna Bogunovic (Peer reviewed; Journal article, 2021)This study presents a data-driven model to predict mean turbulence intensities at desired generic locations, for all wind directions. The model, a multilayer perceptron, requires only information about the local topography ... -
Dataset for long-term wind and acceleration monitoring of the Hardanger Bridge
Fenerci, Aksel; Kvåle, Knut Andreas; Petersen, Øyvind Wiig; Rønnquist, Anders; Øiseth, Ole Andre (Peer reviewed; Journal article, 2021)A large data set of wind and acceleration data collected through long-term monitoring of the Hardanger Bridge in Norway is described in this data paper. The data set includes both raw data and organized data, and it is ... -
Design and deployment of a monitoring system on a long-span suspension bridge
Petersen, Øyvind Wiig; Frøseth, Gunnstein Thomas; Øiseth, Ole Andre (Journal article, 2021)Monitoring systems have become a standard component for many landmark bridges. This paper describes the design of a new monitoring system for the Hålogaland bridge, a suspension bridge has a main span of 1145 m located in ... -
Design of a monitoring system for a long-span suspension bridge: optimal sensor placement
Petersen, Øyvind Wiig; Øiseth, Ole Andre; Frøseth, Gunnstein Thomas (Chapter, 2020)The design of systems for structural health monitoring is an exercise that requires careful planning of optimal sensor locations. The number of possible locations usually outnumbers the number of available sensors, which ... -
Design of an experimental setup for measurements of the aerodynamic properties of bridge decks
Kaasa, Lars Halvor (Master thesis, 2012)As modern bridge design continuously aims for longer and slender bridges, it is necessary to be able to determine aerodynamic properties of such structures with a highdegree of accuracy. The horizontal degree of freedom ... -
Development and Application of a Vision-Based System for Structural Monitoring of Railway Catenary System
Jiang, Tengjiao (Doctoral theses at NTNU;2021:280, Doctoral thesis, 2021)With the continuous increase of train speed and the expansion of the railway network, health monitoring and predictive maintenance of railway infrastructure are becoming increasingly important. The increasing investments ...