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Research on construction control of long-linked continuous beam bridge closure
DOI:
https://doi.org/10.24425/ace.2025.156174Abstract
In this paper, four feasible closing schemes are proposed, three of which are optimization schemes, and the deformation and internal force of the main beam are taken as the control elements, and the closing conditions, cumulative vertical displacement, lower and lower edge stress on the cross-section and horizontal displacement of the support are compared and analysed under different closure sequence schemes. It is found that the displacement and stress differences are large in different closure sequence schemes, different structural system conversion timings, and it is necessary to carry out optimization studies and comprehensively compare and select reasonable schemes. The construction control of the closure stage is studied, and the results of bridge construction control are compared, which shows that the optimization technology and construction control technology of the closure sequence can be used in this paper, which can solve the key problems in the construction control of the closure of long-link continuous beam bridges, and can provide reference and basis for the construction control of the same type of bridge.References
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