doi:

DOI: 10.3724/SP.J.1249.2017.02138

Journal of Shenzhen University Science and Engineering (深圳大学学报理工版) 2017/34:2 PP.138-146

Process simulation of fore fulcra form traveller construction for cable-stayed bridge


Abstract:
In order to determinate the deformation and stress state of the fore fulcra form travellers during the construction stage of cable-stayed bridges, and considering the fact that the tensioning process during the construction stage, which influences the construction control precision, is closely related to the fore fulcra form travellers, we put forward the formula for cable forces calculation and a nine-step construction simulation analysis method based on mechanical analysis and finite element analysis with MIDAS CIVIL of fore fulcra form travellers.We take the travellers bear force and deformation as a part of the whole structure, and then compare the stress state and deformation state in the model with those in practical engineering. The results show that the construction camber, theoretical evaluation and internal force state in tensioning process obtained by this construction simulation analysis method meet the accuracy requirement in construction control. The method can be used to guide practical engineering.

Key words:structral engineering,cable-stayed bridge,form travellers with fore fulcra,construction stage,construction control,interim cable forces,simulation analysis,deformation and stress state,construction camber

ReleaseDate:2017-04-10 18:10:19



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