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Jordbävningsteknik för broar
KTH, School of Architecture and the Built Environment (ABE), Civil and Architectural Engineering, Sustainable Buildings.
KTH, School of Architecture and the Built Environment (ABE), Civil and Architectural Engineering, Sustainable Buildings.
2024 (Swedish)Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesisAlternative title
Earthquake engineering for bridges (English)
Abstract [sv]

Sammanfattningsvis har rapporten belyst diverse ingenjörstekniska metoder som tillämpas i brobyggnader där jordbävningar förekommer. Därefter har metoderna jämförts med varandra i syfte att erhålla skillnaderna men även likheterna. Denna rapport begränsas till en litteraturstudie av primärt vetenskapliga källor och inte tekniska beräkningar. Resultatet visar att det finns väsentligt olika metoder som tillämpas på olika sätt och har olika egenskaper. Deformationsmetoden innebär att komponenterna som utgör konstruktionen har förmågan att hantera energi till följd av seismiska krafter och återfinns över hela bron och funkar av plastisk deformation. Medan seismiska isoleringsmetoder sprider ut energin och installeras vid underbyggnaden av bron. Isoleringsmetoderna glidlager och laminat gummilager ligger oftast mellan överbyggnad och underbyggnad. Slutligen motstår en apparat vid namn “tuned mass damper” dessa krafter som nämnts ovan. Detta kan även erhållas via “Tuned Liquid Damper”. Dessa system tillämpas till skillnad mot tidigare exempel i överbyggnaden.

Abstract [en]

In summary, this report demonstrates different earthquake engineering methods applied in bridges. The methods have thereafter been discussed and compared to each other. This report is only limited to a study based on literature, therefore no calculations will be carried out. The results show a variety of methods that are implemented in different ways and have different qualities. The deformation method is designed such that components of the construction have the ability to manage the energy from seismic forces and can be found all over the bridge and uses plastic deformation as means. While the seismic isolation system disperses the same energy and is installed at piers of the bridge. The isolation systems sliding bearings and laminated rubber bearings are often times placed between the pier and the deck. Lastly there is a device with the name “tuned mass damper” that resists the forces that have been named before. Same thing can be done with “Tuned Liquid Damper”. These systems, unlike the others examples, are placed in the superstructure itself.

Place, publisher, year, edition, pages
2024.
Series
TRITA-ABE-MBT ; 24515
National Category
Engineering and Technology
Identifiers
URN: urn:nbn:se:kth:diva-349075OAI: oai:DiVA.org:kth-349075DiVA, id: diva2:1879641
Supervisors
Examiners
Available from: 2024-06-28 Created: 2024-06-28

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CiteExportLink to record
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Citation style
  • apa
  • ieee
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  • de-DE
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  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
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  • Other locale
More languages
Output format
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  • asciidoc
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