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  • 1.
    Flansbjer, Mathias
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Hållfasthet (BMh).
    Rörställningar - Utvärdering av typfall2006Report (Other academic)
    Abstract [en]

    Tube and coupler scaffolds - Evaluation of typeconfigurations

    Tube and coupler scaffolds are frequently used as facade scaffolds. The design and stability of the scaffold is of great importance for the safety of the workers using the scaffold. According to Swedish regulation, facade scaffolds made of prefabricated elements have to be subjected to type examination. This requirement does not include tube and coupler scaffolds. Instead, these are to be designed in accordance with type-configurations given in the Swedish code or by using the same principles as in these configurations. However, these type-configurations are old-fashioned and do not fulfil modern requirements regarding design and safety of work. The aim of this project was to prepare new type-configurations for tube and coupler scaffolds using European standards for design of facade scaffolds. Finite element analyses have been used to evaluate the load carrying capacity of different scaffold configurations. The result of this project may be used as a basis for revision of the type-configurations for tube and coupler scaffolds in the Swedish code.

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  • 2.
    Hagberg, Klas
    et al.
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Byggande och boende (TRb).
    Adolfi, Bengt
    Ljunggren, Sten
    Östman, Birgit
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP Trä.
    AkuLite nyhetsbrev nr 2, 20112011Report (Refereed)
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  • 3.
    Johansson, Carl-Johan
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, Trätek.
    Träteknik och träbyggande - SP Trätek2009Report (Refereed)
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  • 4.
    Johansson, Carl-Johan
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, Trätek.
    Träteknik och träbyggande: SP Trätek2007Report (Refereed)
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  • 5.
    Rodfors, Gunilla
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP – Sveriges Provnings- och Forskningsinstitut.
    SP Trätek – Nyhetsbrev. April 20052005Report (Refereed)
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  • 6.
    Vennetti, Daniel
    RISE, SP – Sveriges Tekniska Forskningsinstitut.
    Wave and Tidal Energy Technology Survey for Ferry Free E39 Project2012Report (Other academic)
    Abstract [en]

    E39 is a road that is located on the west coast of Norway and extends from Kristiansand in the south to Trondheim in the north. Currently, a number of ferry crossings are required to traverse its entire length. The Transport Ministry has given a mandate for the project “Ferry Free E39” to assess the technological solutions for the crossing of eight large fjords without ferries. The fjords crossings range from 1.5 km to 25 km in length and have depths up to 1300 m. Proposed solutions for the crossings that are under consideration consist of suspension bridges, floating bridges and submerged floating tunnels. Part of the project is to consider how the construction of the crossings can be combined with devices that produce energy from waves, tides, wind and the sun. The idea is that, by using the bridge construction as part of the facility, the costs of the renewable energy power plants could be reduced and therefore be more competitive.

    SP Technical Research Institute of Sweden has been commissioned by the Norwegian Public Roads Administration to perform a technology survey and generate a summary of the current state of the art wave and tidal energy conversion technologies. Requests for information were sent to the majority of the active developers in order to obtain the most up to date information about the current technology status, performance data and conditions of functionality for each of the devices. The thoughts behind the questions asked in the requests for information and the results of this technology survey are presented herein.

    Additionally, SP has been commissioned to make rough estimations of the potential energy that could be obtained from each fjord crossing by employing wave and tidal energy conversion technologies and to recommend the most suitable technology for integration with each fjord crossing concept. The methods behind the estimations of potential energy from each crossing and the background for the recommendations that are made are presented herein.

    Unfortunately, a lack of tidal and wave energy resource data at the fjord crossing locations made it impossible to utilize the detailed calculation method that was described and a simplified calculation method was used to calculate rough estimates of the energy potential from the different devices. When the estimates were compared to previous studies it showed that the estimates based on the simplified approach were non-conservative. Source of non-conservatism in the calculations were discussed and it was concluded that the next stage of the study should concentrate on obtaining reliable data about the tidal and wave energy resources for the different fjord crossing locations. The data should be obtained over a significant period of time to ensure that the effects of seasonal variations in the resources are captured.

    Once tidal and wave resources data is available, more realistic calculations of the potential energy production can be completed. At that point, comparisons of the performance of the difference technologies can be made.

    From that point, more detailed studies should be undertaken where the concepts for combining the devices with the bridging technologies are optimized. This optimization should include actions such as loads analysis, structural strength 7 calculations, reliability and fatigue performance evaluations and detailed cost estimates.

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  • 7.
    Östman, Birgit
    et al.
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Hållbar Samhällsbyggnad.
    Tsantaridis, Lazaros
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Hållbar Samhällsbyggnad.
    Europeisk brandklassning av trägolv2016Report (Other academic)
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