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  • 1.
    Karoumi, Raid
    et al.
    KTH, School of Architecture and the Built Environment (ABE), Civil and Architectural Engineering, Structural Engineering and Bridges.
    Gerard, James
    Kullberg, Claes
    KTH, School of Architecture and the Built Environment (ABE), Civil and Architectural Engineering, Structural Engineering and Bridges.
    Trillkott, Stefan
    KTH, School of Architecture and the Built Environment (ABE), Civil and Architectural Engineering, Structural Engineering and Bridges.
    Measuring the Dynamic Properties of Bridges on the Bothnia Line2005Report (Other academic)
  • 2.
    Karoumi, Raid
    et al.
    KTH, School of Architecture and the Built Environment (ABE), Civil and Architectural Engineering, Structural Design and Bridges.
    Trillkott, Stefan
    KTH, School of Architecture and the Built Environment (ABE), Civil and Architectural Engineering, Structural Design and Bridges.
    Kullberg, Claes
    KTH, School of Architecture and the Built Environment (ABE), Civil and Architectural Engineering, Structural Design and Bridges.
    Sundquist, Håkan
    KTH, School of Architecture and the Built Environment (ABE), Civil and Architectural Engineering, Structural Design and Bridges.
    Kontinuerlig mätning av lagerkrafter på Höga Kusten-bron2006Report (Other academic)
  • 3.
    Kullberg, Claes
    KTH, School of Architecture and the Built Environment (ABE), Civil and Architectural Engineering, Structural Engineering and Bridges.
    Prov av hållfasthet hos gjutfog med olika sträckmetallavstängare1998Report (Other academic)
  • 4.
    Kullberg, Claes
    KTH, School of Architecture and the Built Environment (ABE), Civil and Architectural Engineering, Structural Engineering and Bridges.
    Provbelastning av upplag utförd med varierande material2000Report (Other academic)
  • 5.
    Kullberg, Claes
    KTH, School of Architecture and the Built Environment (ABE), Civil and Architectural Engineering, Structural Engineering and Bridges.
    Skjuvbelastning av betongprismor, sammanfogade med präglad plåt2000Report (Other academic)
  • 6.
    Kullberg, Claes
    KTH, School of Architecture and the Built Environment (ABE), Civil and Architectural Engineering, Structural Engineering and Bridges.
    Sprickindikering med trådtöjningsgivare2009Report (Other academic)
  • 7.
    Kullberg, Claes
    KTH, School of Architecture and the Built Environment (ABE), Civil and Architectural Engineering, Structural Engineering and Bridges.
    Töjningsmätning på lyftstativ för ljusbågsugn2010Report (Other academic)
  • 8.
    Kullberg, Claes
    et al.
    KTH, School of Architecture and the Built Environment (ABE), Civil and Architectural Engineering, Structural Engineering and Bridges.
    Trillkott, Stefan
    KTH, School of Architecture and the Built Environment (ABE), Civil and Architectural Engineering, Structural Engineering and Bridges.
    Mätningar på DTTV-tillbyggnad vid Nacka FM/TV-station2007Report (Other academic)
  • 9.
    Kullberg, Claes
    et al.
    KTH, School of Architecture and the Built Environment (ABE), Civil and Architectural Engineering, Structural Engineering and Bridges.
    Trillkott, Stefan
    KTH, School of Architecture and the Built Environment (ABE), Civil and Architectural Engineering, Structural Engineering and Bridges.
    Mätningar på glasfasader i terminalbyggnader på Arlanda2005Report (Other academic)
  • 10.
    Kullberg, Claes
    et al.
    KTH, School of Architecture and the Built Environment (ABE), Civil and Architectural Engineering, Structural Engineering and Bridges.
    Trillkott, Stefan
    KTH, School of Architecture and the Built Environment (ABE), Civil and Architectural Engineering, Structural Engineering and Bridges.
    Provbelastning av förstärkningsram i Slussen2007Report (Other academic)
  • 11.
    Kullberg, Claes
    et al.
    KTH, School of Architecture and the Built Environment (ABE), Civil and Architectural Engineering, Structural Engineering and Bridges.
    Trillkott, Stefan
    KTH, School of Architecture and the Built Environment (ABE), Civil and Architectural Engineering, Structural Engineering and Bridges.
    Provning av Terrawing bullerplanksfundament2008Report (Other academic)
  • 12.
    Kullberg, Claes
    et al.
    KTH, School of Architecture and the Built Environment (ABE), Civil and Architectural Engineering, Structural Engineering and Bridges.
    Trillkott, Stefan
    KTH, School of Architecture and the Built Environment (ABE), Civil and Architectural Engineering, Structural Engineering and Bridges.
    Vibrationsmätning på golv i By 062 hos Scania i Södertälje2008Report (Other academic)
  • 13.
    Kullberg, Claes
    et al.
    KTH, School of Architecture and the Built Environment (ABE), Civil and Architectural Engineering, Structural Engineering and Bridges.
    Trillkott, Stefan
    KTH, School of Architecture and the Built Environment (ABE), Civil and Architectural Engineering, Structural Engineering and Bridges.
    Vibrationsmätning på Zeiss kalibreringsmaskin och golv hos Scania2005Report (Other academic)
  • 14.
    Kullberg, Claes
    et al.
    KTH, School of Architecture and the Built Environment (ABE), Civil and Architectural Engineering, Structural Engineering and Bridges.
    Trillkott, Stefan
    KTH, School of Architecture and the Built Environment (ABE), Civil and Architectural Engineering, Structural Engineering and Bridges.
    Leander, John
    KTH, School of Architecture and the Built Environment (ABE), Civil and Architectural Engineering, Structural Engineering and Bridges.
    Töjningsmätningar på järnvägsbro över Söderström 2008-20112011Report (Other academic)
  • 15.
    Leander, John
    et al.
    KTH, School of Architecture and the Built Environment (ABE), Civil and Architectural Engineering, Structural Engineering and Bridges.
    Trillkott, Stefan
    KTH, School of Architecture and the Built Environment (ABE), Civil and Architectural Engineering, Structural Engineering and Bridges.
    Kullberg, Claes
    KTH, School of Architecture and the Built Environment (ABE), Civil and Architectural Engineering, Structural Engineering and Bridges.
    Götaälvbron: Töjningsmätningar för kalibrering av beräkningsmodell2015Report (Other academic)
    Abstract [en]

    The Götaälv Bridge in Gothenburg was instrumented with strain gauges in April 2015. This report is a presentation of the measurements performed until 29 April. The measurements were performed by personnel from the Division of Structural Engineering and Bridges at KTH. The project was commissioned by the City of Gothenburg – Traffic & public transport authority through ÅF Infrastructure AB and performed in collaboration with researchers from the Division of Structural Engineering at Chalmers University of Technology.

    The monitoring system comprised 23 strain gauges divided between two areas. One between support 13 and 14 at the South Viaduct and one between support III and IV at the elevated river part. Measurements were performed at four arranged bridge openings and a calibration monitoring using two trucks with known weights. Continuous measurement was also performed during the afternoon Tuesday 28 April.

    For the bridge openings, stresses up to 5,6MPa were recorded on the elevated river part. The recorded stresses are lower than those caused by the ordinary traffic in the instrumented locations.

    The calibration measurements were performed during night using two trucks with weights of 25,0 tons and 25,1 tons, respectively. Together, they caused maximum recorded stresses of 15,4MPa for the South Viaduct and 16,8MPa for the elevated river part. Associated stress ranges were 19,4MPa and 19,8MPa, respectively. The largest values were recorded in the gauges located close to the mid spans.

    Stress range spectra are presented for the short term continuous measurement. The daily traffic gives in general lower stress ranges than the trucks used for the calibration. A large portion of the cycles are distributed over small stress ranges.

    For the gauges on the elevated bridge part, the analyses show a significant influence of dynamics on the results.

  • 16.
    Sundquist, Håkan
    et al.
    KTH, School of Architecture and the Built Environment (ABE), Civil and Architectural Engineering, Structural Design and Bridges.
    Karoumi, Raid
    KTH, School of Architecture and the Built Environment (ABE), Civil and Architectural Engineering, Structural Design and Bridges.
    Trillkott, Stefan
    KTH, School of Architecture and the Built Environment (ABE), Civil and Architectural Engineering, Structural Design and Bridges.
    Kullberg, Claes
    KTH, School of Architecture and the Built Environment (ABE), Civil and Architectural Engineering, Structural Design and Bridges.
    Bestämning av hängarkrafter i några av hängarna på Höga Kusten-bron2005Report (Other academic)
  • 17.
    Trillkott, Stefan
    et al.
    KTH, School of Architecture and the Built Environment (ABE), Civil and Architectural Engineering, Structural Engineering and Bridges.
    Kullberg, Claes
    KTH, School of Architecture and the Built Environment (ABE), Civil and Architectural Engineering, Structural Engineering and Bridges.
    Gamla Lidingöbron Accelerationsmätningar på fundament och mätning av sprickdeformationer på påle2012Report (Other academic)
  • 18.
    Trillkott, Stefan
    et al.
    KTH, School of Architecture and the Built Environment (ABE), Civil and Architectural Engineering, Structural Engineering and Bridges.
    Kullberg, Claes
    KTH, School of Architecture and the Built Environment (ABE), Civil and Architectural Engineering, Structural Engineering and Bridges.
    Mätning av frekvenser på Strömsholmsbron i Norrköping2012Report (Other academic)
  • 19.
    Trillkott, Stefan
    et al.
    KTH, School of Architecture and the Built Environment (ABE), Civil and Architectural Engineering, Structural Engineering and Bridges.
    Kullberg, Claes
    KTH, School of Architecture and the Built Environment (ABE), Civil and Architectural Engineering, Structural Engineering and Bridges.
    Vibrationsmätning på ändtvärbalk till bro vid Franzengatan, Essingeleden2013Report (Other academic)
  • 20.
    Ulker-Kaustell, Mahir
    et al.
    Tyrens AB, Stockholm, Sweden..
    Boschmonar, Gabriel F.
    KTH, School of Architecture and the Built Environment (ABE), Civil and Architectural Engineering, Structural Engineering and Bridges.
    Isusi, Pablo B.
    KTH, School of Architecture and the Built Environment (ABE), Civil and Architectural Engineering, Structural Engineering and Bridges.
    Trillkott, Stefan
    KTH, School of Architecture and the Built Environment (ABE), Civil and Architectural Engineering, Structural Engineering and Bridges.
    Kullberg, Claes
    KTH, School of Architecture and the Built Environment (ABE), Civil and Architectural Engineering, Structural Engineering and Bridges.
    Karoumi, Raid
    KTH, School of Architecture and the Built Environment (ABE), Civil and Architectural Engineering, Structural Engineering and Bridges.
    Modelling of Pot Bearings - A Preliminary Study2018In: EXPERIMENTAL VIBRATION ANALYSIS FOR CIVIL STRUCTURES: TESTING, SENSING, MONITORING, AND CONTROL / [ed] Conte, JP Astroza, R Benzoni, G Feltrin, G Loh, KJ Moaveni, B, SPRINGER INTERNATIONAL PUBLISHING AG , 2018, p. 343-353Conference paper (Refereed)
    Abstract [en]

    Previous research indicates that roller and pot bearings may give rise to considerable non-linear effects in certain bridges. These effects appear as variations in natural frequency, mode shape and modal damping ratio, depending on the amplitude of vibration. At small amplitudes of vibration, it seems reasonable to assume that the rolling or sliding mechanism is inactive, thus yielding a stiffer structure and no additional dissipation of energy due to friction. At slightly larger amplitudes of vibration, although still remaining small with respect to geometrical non-linearity, the rolling or sliding mechanism activates, whereby the corresponding constraints are relieved. At the same time, because of the rolling or sliding friction, a certain amount of energy dissipates to the surroundings. In order to improve our understanding of these mechanisms and their practical implications, a preliminary experimental study has been performed with the aim of developing a simple model of these mechanisms, which can be included in theoretical models of bridges and other structures. In this paper, we give a short description of the outcome of our laboratory tests and the status of our model development process.

1 - 20 of 20
CiteExportLink to result list
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Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
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  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
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Output format
  • html
  • text
  • asciidoc
  • rtf