Analysis on Spatial Force of Main Cable Anchorage Zone of Bridge with Self-anchored Suspension Cable-Cable-stayed Cooperative System
The main cable anchorage zone,as a critical component in self-anchored suspension cable-cable-stayed cooperative system bridge,is responsible for uniformly distributing the significant axial forces of the main cables to the entire cross-section of the stiffening girder.In order to study the force condition of anchorage zone of the main cable and the force transfer rule of the main cable,and based on the scheme of the self-anchored suspension cable-cable-stayed cooperative system bridge with the main span 420 m on the condition of 60 m air-mail height limit,a shell-solid finite element model is established to analyze the spatial force of each component in the anchorage zone of the main cable for the long-span self-anchorage cooperative system bridge.The stress level and distribution condition of each component in the anchorage zone are given,and the influence of the concrete in anchor on the stress of component in the anchorage zone is obtained.The rationality and safety of the structural design in the anchorage zone of the main cable are verified.
self-anchored suspension cable-cable-stayed cooperative system bridgeanchorage zone of main cablefinite element methodforce analysis
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