FATIGUE OF CABLE ANCHORAGE OF LARGE CABLE STAYED BRIDGE

DOI Web Site Web Site 2 References

Bibliographic Information

Other Title
  • 大規模斜張橋ケーブル定着構造の疲労
  • ダイキボ シャチョウキョウ ケーブル テイチャク コウゾウ ノ ヒロウ

Search this article

Description

Design considerations such as design schemes, the assemblage and welding of steel plates, and safety for fatigue of welded conections have to be taken for the cable anchorages of the steel cable stayed bridges. In this study, two full scale models, which have different shape of box anchorages welded to the web of the main girder, were made to investigate fatigue characteristics as well as assemblage of plate and welding decals. Finite element analyses for both test models and actual bridges were carried out to compare stress distribution. It was comfirmed that the assemblage and welding of both types of box anchorage were attainable with required quality and accuracy. According to the fatigue test, fatigue cracks originated from the weldings of the bearing plate to which the load from cable socket applied directly were caused by out-of-plane bending of the bearing plate. It was proved that the slight modifications of the details around the bearing plate resulted in sufficient fatigue strength in both types of anchorage.

Journal

References(2)*help

See more

Keywords

Details 詳細情報について

Report a problem

Back to top