Title: The design and experimental study of the steel-concrete composite box girder of a harp-shaped single span cable-stayed bridge
Abstract: Publisher Summary The chapter presents the issues of design and experiment results of a harp-shaped single span cable-stayed bridge, Hongshan Bridge, located in Changsha, China. The inclined pylon is a prestressed concrete structure, and the main girder is an orthotropic steel-concrete composite box girder. The chapter presents a scaled full model test to verify the design and analyze the results of the bridge. The chapter investigates the experimental study of the local stability of the steel box girder and the dynamic characteristics of the model with different auxiliary equipments. The chapter provides recommendations that the pylon should be in a status of axial compression when the girder is loaded by all dead loads and half live loads, and the weight of the pylon and the girder deck should be in a balanced condition. For this type of bridge, the main girder prefer to an orthotropic steel-concrete composite box girder, and the concrete deck is installed near the neutral axis of the girder. To prevent the cracking of the concrete deck, the prebending prestressing method is presented in the chapter. The chapter also indicates that setting temporary piers in the construction of the bridge is a practical and economic approach to improve wind-resistance characteristics.
Publication Year: 2005
Publication Date: 2005-01-01
Language: en
Type: book-chapter
Indexed In: ['crossref']
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