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Fatigue design of steel and composite bridges Al-Emrani, Mohammad ; Aygül, Mustafa

By: Contributor(s): Series: Report ; 2014:10Publication details: Göteborg Chalmers University of Technology. Department of Civil and Environmental Engineering. Division of Structural Engineering, 2014Description: 157 sSubject(s): Online resources: Abstract: This document is essentially meant to cover aspects related to the fatigue design and analysis of welded steel and steel-concrete composite bridges. It has been the intention of the authors to – wherever is judged necessary and feasible – present and highlight the background of various aspects in the fatigue design. Fatigue load models are treated in Chapter 2 for both road and railway bridges. Focus has been on the fatigue load models which are to be used with the simplified equivalent damage method as well as the damage accumulation method. Both methods are covered in more details in Chapter 3. Worked examples on the application of these two methods in conjunction with the nominal-stress approach are given in Chapter 4. Recommendations and guidelines for the fatigue design and analysis with local approaches are given in Chapter 5 for the hot-spot stress method and Chapter 6 for the effective notch-stress method. Even if the hot-spot stress method is included in the Eurocode as an alternative to the conventional nominal stress method, no rules, recommendations or guidelines are today provided as to how this method should be applied. Chapters 4 & 5 are aimed at giving basic and general background information on the application of local approaches that often are suitable to use in conjunction with Finite Element Analysis.
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This document is essentially meant to cover aspects related to the fatigue design and analysis of welded steel and steel-concrete composite bridges. It has been the intention of the authors to – wherever is judged necessary and feasible – present and highlight the background of various aspects in the fatigue design. Fatigue load models are treated in Chapter 2 for both road and railway bridges. Focus has been on the fatigue load models which are to be used with the simplified equivalent damage method as well as the damage accumulation method. Both methods are covered in more details in Chapter 3. Worked examples on the application of these two methods in conjunction with the nominal-stress approach are given in Chapter 4. Recommendations and guidelines for the fatigue design and analysis with local approaches are given in Chapter 5 for the hot-spot stress method and Chapter 6 for the effective notch-stress method. Even if the hot-spot stress method is included in the Eurocode as an alternative to the conventional nominal stress method, no rules, recommendations or guidelines are today provided as to how this method should be applied. Chapters 4 & 5 are aimed at giving basic and general background information on the application of local approaches that often are suitable to use in conjunction with Finite Element Analysis.