Sökning: "human-induced vibrations"

Visar resultat 1 - 5 av 6 uppsatser innehållade orden human-induced vibrations.

  1. 1. Response of Footbridges equipped with TLD : A numerical and experimental assessment

    Master-uppsats, KTH/Bro- och stålbyggnad

    Författare :Silhady Tshitende Luboya; [2020]
    Nyckelord :Tuned liquid damper; tuned mass damper; dynamic analysis; dynamics evaluation; vibration; footbridge; human-induced vibrations; parametric study; serviceability; assessment.;

    Sammanfattning : In recent years, an increase to design slender and aesthetically-pleasing structures have resulted in some structures having a low natural frequency. This is because the design calculation did not meet the requirement of serviceability performance. LÄS MER

  3. 2. Dynamic Assessment of Footbridges : A designer's method to estimate running induced vibrations

    Master-uppsats, KTH/Bro- och stålbyggnad

    Författare :Jones Södergren; Anton Barraza; [2018]
    Nyckelord :Footbridge Dynamics; Running; Load; Vibrations; Structural Dynamics; Human Structure Interaction; Dynamic Assessment; Acceleration;

    Sammanfattning : Dynamic problems in footbridges, such as sensible vibrations caused by human induced loading, has on a number of occasions been observed. These vibrations are rarely an ultimate limit state problem, but can be perceived as unpleasant by the pedestrian. In design guidelines there are propositions for how to asses the dynamic problem. LÄS MER

  4. 3. Serviceability assessment of footbridges when subjected to vibrations induced by running pedestrians

    Master-uppsats, KTH/Bro- och stålbyggnad

    Författare :Javier Garmendia Purroy; [2017]
    Nyckelord :Footbridge; Running; Jogging; Load; Vibrations; Structural; Dynamics; Pedestrian footbridge interaction; Serviceability; Assessment; Gångbro; Löpning; Last; Vibrationer; Strukturdynamik; Bruksgränstillstånd; Bedömning;

    Sammanfattning : Vibration serviceability in the design of footbridges is gathering enormous prominence as comfort restrictions get enhanced. Comfort verifications are often becoming critical when considering human induced dynamic loading on lightweight structures, which are increasing in slenderness and flexibility. LÄS MER

  5. 4. Dynamic Analysis of the Skyway Bridge : Assessment and Application of Design Guidelines

    Master-uppsats, KTH/Bro- och stålbyggnad

    Författare :Eric Thufvesson; Daniel Andersson; [2017]
    Nyckelord :finite element analysis; finite element modelling; footbridge; human induced vibrations; natural frequencies; mode shapes; parametric study; pedestrian bridge;

    Sammanfattning : In recent years the design of pedestrian bridges has become more slender. As a result the bridges has lower natural frequencies and are more prone to excessive vibrations when subjected to dynamic loads induced by pedestrians. LÄS MER

  7. 5. Komfortsanalys med hänsyn till vibrationer orsakade av människoaktiviteter. : Ett modernt dimensioneringsproblem för huskonstruktörer

    Uppsats för yrkesexamina på avancerad nivå, KTH/Betongbyggnad

    Författare :Hamidreza Ommi; [2013]
    Nyckelord :Dynamik; konstruktion; vibrationer; komfortanalys; bjälklag; finita element metoden;

    Sammanfattning : Comfort analyses regarding human induced vibrations It is not too common among civil engineers in Sweden to perform comfort analyses considering the vibrations caused by human activities. In addition, the Swedish standards lack requirements to be used for comfort analyses in design of floor-systems. LÄS MER