000195769 001__ 195769
000195769 005__ 20190316235826.0
000195769 0247_ $$2doi$$a10.3390/polym6041096
000195769 02470 $$2ISI$$a000335896500009
000195769 037__ $$aARTICLE
000195769 245__ $$aFinite Element Analysis for Fatigue Damage Reduction in Metallic Riveted Bridges Using Pre-Stressed CFRP Plates
000195769 269__ $$a2014
000195769 260__ $$bMdpi Ag$$c2014$$aBasel
000195769 300__ $$a23
000195769 336__ $$aJournal Articles
000195769 520__ $$aMany old riveted steel bridges remain operational and require retrofit to accommodate ever increasing demands. Complicating retrofit efforts, riveted steel bridges are often considered historical structures where structural modifications that affect the original construction are to be avoided. The presence of rivets along with preservation requirements often prevent the use of traditional retrofit methods, such as bonding of fiber reinforced composites, or the addition of supplementary steel elements. In this paper, an un-bonded post-tensioning retrofit method is numerically investigated using an existing railway riveted bridge geometry in Switzerland. The finite element (FE) model consists of a global dynamic model for the whole bridge and a more refined sub-model for a riveted joint. The FE model results include dynamic effects from axle loads and are compared with field measurements. Pre-stressed un-bonded carbon fiber reinforced plastic (CFRP) plates will be considered for the strengthening elements. Fatigue critical regions of the bridge are identified, and the effects of the un-bonded post-tensioning method with different prestress levels on fatigue susceptibility are explored. With an applied 40% CFRP pre-stress, fatigue damage reductions of more than 87% and 85% are achieved at the longitudinal-to-cross beam connections and cross-beam bottom flanges respectively.
000195769 6531_ $$afinite element model
000195769 6531_ $$afatigue damage
000195769 6531_ $$ametallic railway riveted bridge
000195769 6531_ $$aCFRP
000195769 6531_ $$aun-bonded post-tensioning
000195769 700__ $$aGhafoori, Elyas
000195769 700__ $$0245201$$g208996$$aPrinz, Gary S.
000195769 700__ $$0243059$$g113159$$aNussbaumer, Alain
000195769 700__ $$aMotavalli, Masoud
000195769 700__ $$aHerwig, Andrin
000195769 700__ $$aFontana, Mario
000195769 700__ $$aMayor, Emmanuel
000195769 773__ $$j6$$tPolymers$$q1096-1118
000195769 8564_ $$uhttp://www.mdpi.com/journal/polymers$$zURL
000195769 8564_ $$uhttps://infoscience.epfl.ch/record/195769/files/polymers-06-01096.pdf$$zPublisher's version$$s1718997$$yPublisher's version
000195769 8564_ $$uhttps://infoscience.epfl.ch/record/195769/files/polymers-47825-check.docx$$zn/a$$s4792875
000195769 909C0 $$xU10233$$0252127$$pICOM
000195769 909CO $$qGLOBAL_SET$$particle$$ooai:infoscience.tind.io:195769
000195769 917Z8 $$x113159
000195769 917Z8 $$x113159
000195769 917Z8 $$x113159
000195769 937__ $$aEPFL-ARTICLE-195769
000195769 973__ $$rREVIEWED$$sPUBLISHED$$aOTHER
000195769 980__ $$aARTICLE