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Study of The Fatigue Problem of The Side Suspender of Multi-span Cable-stayed Suspension Bridge

 Study of The Fatigue Problem of The Side Suspender of Multi-span Cable-stayed Suspension Bridge
Auteur(s): , ,
Présenté pendant IABSE Symposium: Engineering for Progress, Nature and People, Madrid, Spain, 3-5 September 2014, publié dans , pp. 123-128
DOI: 10.2749/222137814814027440
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Because of the giant stiffness difference between cable-stayed system and suspension system, the side suspender (which means the outermost suspender) of the cable-stayed suspension bridge will suf...
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Détails bibliographiques

Auteur(s):


Médium: papier de conférence
Langue(s): anglais
Conférence: IABSE Symposium: Engineering for Progress, Nature and People, Madrid, Spain, 3-5 September 2014
Publié dans:
Page(s): 123-128 Nombre total de pages (du PDF): 6
Page(s): 123-128
Nombre total de pages (du PDF): 6
Année: 2014
DOI: 10.2749/222137814814027440
Abstrait:

Because of the giant stiffness difference between cable-stayed system and suspension system, the side suspender (which means the outermost suspender) of the cable-stayed suspension bridge will suffer large stress amplitude during ist operational period. If not handled properly, the side suspender would damage because of fatigue problem. This paper summarizes the main aspects that influent the fatigue problem of the side suspender, including the quantity of suspenders in the binding region, the cross-sectional area of the side suspender, the rise-span ratio of the main cable, the central buckle, the height of the stiffening girder, and the stiffness of mid-tower. A finite- element model, with a span arrangement of 304+1024+1024+304m, is established to study the influence of those aspects to the stress amplitude of the side suspender. Some results and useful recommendations about the prevention of the fatigue damage of the side suspender are presented.