• A comparative study of beam element formulations for nonlinear analysis: corotatinal vs. geometrically exact formulations 

      Mathisen, Kjell Magne; Bazilevs, Yuri; Haugen, Bjørn; Helgedagsrud, Tore Andreas; Kvamsdal, Trond; Okstad, Knut Morten; Raknes, Siv Bente (Chapter, 2017)
      In this work the geometrically exact three-dimensional beam theory has been used as basis for development of a family of isoparametric higher order large deformation curved beam elements. Geometrically exact three-dimensional ...
    • A framework for estimating the implicit safety level of existing design codes 

      Baravalle, Michele; Kohler, Jochen (Chapter, 2017)
      Target safety levels ( t ) are key elements for reliability-based design and calibration of design codes. They are derived by monetary optimization or from existing codes. The current article discusses these two approaches ...
    • 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 ...
    • Aluminium plates with pre-formed slits subjected to blast loading 

      Granum, Henrik; Aune, Vegard; Børvik, Tore; Hopperstad, Odd Sture (Chapter, 2018)
      The dynamic response of thin, perforated aluminium plates subjected to blast loading was studied both experimentally and numerically. Two different blast intensities were used and the plates were pre-cut with four horizontal ...
    • Aspects of fluid-structure interaction on the dynamic response of blast-loaded metallic plates 

      Aune, Vegard; Valsamos, Georgios; Casadei, Folco; Børvik, Tore (Chapter, 2019)
      This work presents results from an experimental and numerical investigation on the influence of fluid-structure interaction (FSI) on the dynamic response of thin steel plates subjected to blast loading. The loading was ...
    • Blast loading of concrete pipes using spherical centrically placed C-4 charges 

      Kristoffersen, Martin; Hauge, Knut Ove; Valsamos, Georgios; Børvik, Tore (Chapter, 2018)
      The Norwegian Public Roads Administration has initiated a large research project on a potential ferry-free coastal highway route E39 from Trondheim to Kristiansand. Parts of this route involve crossing somewide and deep ...
    • Blast-load response of thin steel plates after ballistic impact from small-arms projectiles 

      Elveli, Benjamin Stavnar; Børvik, Tore; Aune, Vegard (Chapter, 2019)
      This paper investigates the dynamic response of 0.8 mm thick steel plates exposed to a combination of ballistic impact and blast loading. Two different materials, i.e., a medium-strength (Docol 600DL) steel and a high-strength ...
    • Brittleness of High-Strength Lightweight Aggregate Concrete 

      Zivkovic, Jelena; Lukovic, M.; Øverli, Jan Arve; Hordijk, D. A. (Chapter, 2018)
      Modern society and infrastructure are facing an increased demand for fast construction. A number of viaducts are aged and will need to be replaced in near future. When considering this replacement task, lightweight, slender ...
    • Challenges related to structural modelling and assessment of concrete structures affected by alkali-silica reactions 

      Kongshaug, Simen Sørgaard; Kanstad, Terje; Hendriks, Max; Kioumarsi, Mahdi; Markeset, Gro (Chapter, 2017)
      Alkali-Silica Reaction (ASR) in concrete is a chemical process between dissolved alkali and hydroxyl ions from pore solutions in the cement paste, and reactive (amorphous) silica within the aggregates. The product of the ...
    • Code-to-Code Verification of End-Anchored Floating Bridge Global Analysis 

      Viuff, Thomas; Xiang, Xu; Leira, Bernt Johan; Øiseth, Ole (Chapter, 2018)
      A code-to-code comparison of the dynamic characteristics of an end-anchored floating pontoon bridge is presented for two commercial software commonly used in the offshore industry, i.e. SIMO-RIFLEX and ORCAFLEX. Furthermore, ...
    • CONCRETE-ICE ABRASION: SURFACE ROUGHNESS AND MEASUREMENT METHOD 

      Shamsutdinova, Guzel; Hendriks, Max; Jacobsen, Stefan (Chapter, 2015)
      The wearing of concrete material due to ice movement is a cutting edge problem for offshore and coastal engineering. The phenomenon is often referred to as concrete-ice abrasion, but the physics of this process is not ...
    • Crash behavior of obliquely loaded aluminum extrusions 

      Reyes, Aase Gavina Roberg; Langseth, Magnus; Hopperstad, Odd Sture (Chapter, 2002)
      The energy absorbing capability of obliquely loaded aluminum extrusions was studied through quasi-static experiments. Square aluminum columns in alloy AA6060 were clamped at one end and oblique load conditions were realized ...
    • Critical investigation of TGA sample preparation for composite cements 

      Machner, Alisa; Bussetti, Lucie; Geiker, Mette Rica; De Weerdt, Klaartje (Chapter, 2015)
      Thermogravimetric analysis (TGA) is a frequently used technique to investigate the phase assemblages of hydrated cements. However the obtained results are sensitive to the sample preparation. A commonly used technique for ...
    • Damage and Failure in an X65 Steel Pipeline Caused by Trawl Gear Impact 

      Kristoffersen, Martin; Børvik, Tore; Langseth, Magnus; Hopperstad, Odd Sture; Ilstad, Håvar; Levold, Erik (Chapter, 2013)
      Offshore pipelines subjected to accidental impact loads from trawl gear or anchors may experience large global deformations and large local strains, creating a complex stress and strain history. In this study experiments ...
    • 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 ...
    • Determination of the polarization resistance of steel in carbonated fly-ash concrete- effect of measurement technique 

      Revert, Andres Belda; Hornbostel, Karla; De Weerdt, Klaartje; Geiker, Mette Rica (Chapter, 2017)
      The polarization resistance (Rp) of a metal gives an indication of the corrosion condition at a given time. The Rp of embedded reinforcement in concrete is usually determined using the linear polarization resistance or the ...
    • Durability aspects of cracks in concrete: field observations 

      Geiker, Mette Rica; Danner, Tobias; Hornbostel, Karla; Michel, Alexander (Chapter, 2019)
      The research presented in this paper briefly summarises findings from a project on impact of cracks on reinforcement corrosion within the Norwegian Public Roads Administration’s R&D program “Ferry-free coastal route E39”. ...
    • Durability testing of low clinker blends - chloride ingress in similar strength mortar exposed to seawater 

      Geiker, Mette Rica; De Weerdt, Klaartje; Ferreiro Garzón, Sergio; Jensen, Mads Mønster; Johannesson, Björn; Michel, Alexander (Chapter; Conference object; Peer reviewed, 2017)
      Resistance to chloride ingress of ten different binders was investigated. Most of the binders were prepared with 35% substitution of a new clinker by limestone filler, calcined clay, burnt shale and/or siliceous fly ash. ...
    • Dynamic optimization of railway catenary system by turning unwanted lumped-mass into tuned-mass 

      zhendong, liu; Stichel, Sebastian; Rønnquist, Anders (Chapter, 2017)
      The railway catenary is suspended to its supports with droppers, clamps and oth-er fittings. These lumped-masses are made light and small to minimize disturbances. The mass-es cannot be completely removed but can be adjusted ...
    • Dynamic Response of a Floating Bridge Structure 

      Viuff, Thomas; Leira, Bernt Johan; Øiseth, Ole; Xiang, Xu (Chapter; Peer reviewed, 2016)
      A theoretical overview of the stochastic dynamic analysis of a floating bridge structure is presented. Emphasis is on the wave-induced response and the waves on the sea surface are idealized as a zero mean stationary ...