Sökning: "induced acceleration analysis"

Visar resultat 1 - 5 av 28 uppsatser innehållade orden induced acceleration analysis.

  1. 1. Evaluation of structurally controlled rockfall hazard for underground excavations in seismically active areas of the Kiirunavaara mine

    Master-uppsats, Luleå tekniska universitet/Institutionen för samhällsbyggnad och naturresurser

    Författare :Manuel Alberto Fuentes Espinoza; [2023]
    Nyckelord :Structurally controlled rockfalls; rockfalls due to seismic shaking; sublevel caving; fork layout; Unwedge; wedge analysis; deterministic analysis; probabilistic analysis;

    Sammanfattning : Sublevel caving operations at great depths are subjected both to large stress concentrations that are redistributed as the mining front progresses and to mining-induced seismicity. This is the case for Kiirunavaara mine, Sweden’s largest underground mine. LÄS MER

  3. 2. Reliability-Based Sensitivity Analysis of the Dynamic Response of Railway Bridges

    Master-uppsats, KTH/Bro- och stålbyggnad

    Författare :Hasan Al-Zubaidi; [2022]
    Nyckelord :Railway bridges; High-speed trains; Simply supported beam; Global sensitivity analysis; Uncertainty quantification; Reliability; Ballast instability; Running safety; Passenger comfort;

    Sammanfattning : In response to the planned increase in operational speeds and axle loads of passengertrains that may lead to resonance-induced excessive vibrations in railway bridges,recent studies examined the reliability of bridges concerning train running safety andpassenger comfort limit states. In this respect, valuable information regarding theimportance of input variables can be obtained by conducting Sensitivity Analysis (SA). LÄS MER

  4. 3. Cross-comparison of Non-Linear Seismic Assessment Methods for Unreinforced Masonry Structures in Groningen

    Master-uppsats, KTH/Betongbyggnad

    Författare :Viktor Peterson; Zihao Wang; [2020]
    Nyckelord :Non-linear time-history analysis; non-linear pushover analysis; N2- method; equivalent frame model; continuum model; numerical seismic assessment; unreinforced masonry buildings iv;

    Sammanfattning : A large amount of low-rise unreinforced masonry structures (URM) can be foundin Groningen, the Netherlands. More and more induced earthquakes with shortduration have been detected in this region due to gas exploitation. LÄS MER

  5. 4. Gånginducerade vibrationer i korslimmade träbjälklag : Hur ökad massa påverkar maximala spännvidder

    Uppsats för yrkesexamina på avancerad nivå, Luleå tekniska universitet/Drift, underhåll och akustik

    Författare :Vera Öberg; [2020]
    Nyckelord :Cross-laminated timber; CLT; timber floors; vibration; oscillation; acceleration; finite element analysis; OS-RMS; KL-trä; träbjälklag; vibrationer; svängningar; acceleration; finita elementmetoden; OS-RMS;

    Sammanfattning : En konsekvens av snabbt växande städer och samhällen är ett ökat behov av stora byggnader, men också av hållbart byggda sådana. Det relativt nya byggmaterialet korslimmat trä, förkortat KL-trä, presenteras som ett svar på dessa behov. LÄS MER

  7. 5. Dynamic analyses of hollow core slabs : Experimental and numerical analyses of an existing floor

    Master-uppsats, KTH/Bro- och stålbyggnad

    Författare :Markus Hansell; Panagiotis Tamtakos; [2020]
    Nyckelord :Hollow core slab; Structural dynamics; Signal analysis; Mode shape; Frequency response function; Complex mode; FE-model; Håldäcksbjälklag; Strukturdynamik; Signalanalys; Modform; Frekvenssvar; Komplex mod; FE-modellering.;

    Sammanfattning : For intermediate floors in residential and office buildings, as well as in parking garages and malls, there is a wide use of hollow core concrete slabs in Sweden today. Hollow core slabs are precast and prestressed concrete elements with cylindrical-shaped voids extending along the length of the slab. LÄS MER