Determination of Monitoring Parameters for Fatigue Behavior of Steel-Concrete Composite Bridge Girders with Welded Full Depth Transverse Stiffeners
| Autor: | Baris Gunes, Alper Ilki, Namık Kemal Öztorun |
|---|---|
| Přispěvatelé: | İÜC, Mühendislik Fakültesi, İnşaat Mühendisliği Bölümü |
| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
Materials science
Geography Planning and Development Composite number lcsh:TJ807-830 0211 other engineering and technologies lcsh:Renewable energy sources 020101 civil engineering 02 engineering and technology Welding Management Monitoring Policy and Law Flange 0201 civil engineering law.invention law Deflection (engineering) Girder steel-concrete composite bridge girder lcsh:Environmental sciences lcsh:GE1-350 021110 strategic defence & security studies Renewable Energy Sustainability and the Environment business.industry lcsh:Environmental effects of industries and plants welded full depth transverse stiffener Structural engineering Residual strength Transverse plane monitoring lcsh:TD194-195 Service life fatigue business |
| Zdroj: | Sustainability, Vol 12, Iss 1, p 283 (2019) Sustainability Volume 12 Issue 1 |
| ISSN: | 2071-1050 |
| Popis: | Gunes, Baris/0000-0003-1747-001X; Ilki, Alper/0000-0002-4853-7910 WOS:000521955600283 In this study, parameters that should be monitored during the service life of a bridge and the relationship between the parameters and damage are investigated in order to predict the fatigue damages in steel-concrete composite bridge girders with welded full depth transverse stiffeners. In this context, static and fatigue tests are carried out on steel-concrete composite beam specimens with welded full depth transverse stiffeners. Load-deflection behavior of specimens is determined by these monotonic tests. In the fatigue tests, the specimens are subjected to cyclic loading with various stress ranges, and stress range - number of cycles (S-N) data is obtained. Fatigue crack and fatigue fracture are observed in the first two specimens with the highest stress range applied. As expected, the fatigue crack occurred at the point where the stiffener is welded to the bottom flange. During the tests, dynamic deflection and strain measurements are performed at the critical points throughout the cyclic loading. The parameters which are more critical in terms of fatigue behavior and should be monitored are determined by examining the relationship between the obtained data from these measurements and fatigue damage. Discussions and evaluations are made on the level of safety presented in the relevant code by the comparison of the obtained results from fatigue tests with the code and the important studies in the literature. Finally, the specimens without fatigue fracture were tested under monotonic loading to determine the residual strength. Accordingly, the change in the load-deflection behavior after cyclic loading is demonstrated. Istanbul UniversityIstanbul University [BAP 2138]; TUBITAK BIDEB Domestic PhD Scholarship ProgramTurkiye Bilimsel ve Teknolojik Arastirma Kurumu (TUBITAK) This work was supported by the Istanbul University, BAP 2138 project and TUBITAK BIDEB Domestic PhD Scholarship Program. |
| Databáze: | OpenAIRE |
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