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Utmattning av järnvägsbroar i armerad betong: Enligt eurokoder
Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Applied Mechanics, Byggteknik.
2013 (Swedish)Independent thesis Basic level (professional degree), 10 credits / 15 HE creditsStudent thesisAlternative title
Fatigue of railway bridges in reinforced concrete : According to Eurocodes (English)
Abstract [en]

Commissioned for this report is Ramboll, Bridge and Tunnel Unit in Stockholm. The

idea throughout the work has been to primarily help bridge designers compiling

advice and instructions on how fatigue verification for railway bridges in reinforced

concrete shall be performed under the new rules, the Eurocodes.

After the introduction of the Eurocodes in 2011 has major problems emerged among

designers around Sweden. In some areas, it differs in the calculation rules compared

with rules from the Swedish Transport Administration and the National Board of

Housing, Building and Planning calculation. Fatigue verification is one area where the

new calculation rules are different from the past.

A large part of the report has been to interpret and find the relevant information in

the Eurocodes concerning fatigue. When questions or doubts have surfaced, this has

been discussed with Elisabeth Helsing at the Swedish Transport Administration and

bridge designers at Ramboll.

The result is a report where the structure is organized in the way that the bridge

designers can move from cover to cover and realize that fatigue verification in reality

follows the same order as the report's sections. The issues have been resolved and

reported regularly through the report with complementary findings as a result.

Some of the greatest advances in the report are the load combinations to be used for

the method for fatigue verification, how the dynamic factor and the magnification

factor should be used and how the trainloads to be designed for each method for

fatigue verification.

Place, publisher, year, edition, pages
2013. , 68 p.
Keyword [sv]
Utmattning, Järnvägsbroar, Eurokoder, Enkel spänningskontroll, Lambdametoden, Palmgren-Miners delskadehypotes
National Category
Other Civil Engineering
URN: urn:nbn:se:uu:diva-208836ISRN: ISRN UTH- INGUTB-EX- B- 2013/22- SEOAI: diva2:654837
External cooperation
Ramböll Sverige AB, Bro & Tunnel, Stockholm
Educational program
Bachelor Programme in Construction Engineering
Available from: 2013-10-11 Created: 2013-10-08 Last updated: 2013-10-11Bibliographically approved

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