Cantilever end torsion angle prediction method, control method, system and medium

By acquiring bridge parameters and utilizing the trigonometric series calculation module, the deflection and torsion angle at the cantilever end can be directly calculated, solving the problem of rapid prediction and control during the cantilever construction stage and improving calculation efficiency and engineering applicability.

CN122263247APending Publication Date: 2026-06-23NEIJIANG NORMAL UNIV +1
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Patent Information

Application Number
CN202610647892.7
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-05-12
Publication Date
2026-06-23

AI Technical Summary

Technical Problem

Existing technologies struggle to quickly and accurately predict and control the torsion angle at the cantilever end of curved bridges during the cantilever construction phase, making it difficult to guarantee construction safety and the quality of the completed bridge's alignment. Furthermore, they suffer from low computational efficiency and difficulties in parameter sensitivity analysis.

Method used

By obtaining the bridge's stiffness, section moment of inertia, section shear modulus, section torsional constant, and the self-weight of the cantilever curved bridge structure, the trigonometric series of the deflection and torsion angle at the cantilever end can be directly calculated using the trigonometric series calculation module for undetermined coefficients, thus achieving rapid analytical solution acquisition.

Benefits of technology

It improves the computational efficiency and engineering applicability of predicting the torsion angle at the cantilever end, simplifies parameter sensitivity analysis, and supports rapid calculation in the design phase and real-time control on the construction site.

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Abstract

The invention relates to a cantilever end torsion angle prediction method, a cantilever end torsion angle control method, a cantilever end torsion angle system and a medium, and relates to the technical field of end torsion angle prediction and control. According to the prediction method, on the basis of the obtained rigidity, cross section inertia moment, cross section shear modulus and cross section torsion constant of the bridge and the dead weight of the cantilever bent bridge structure, undetermined coefficients of the trigonometric series of the cantilever end deflection and the torsion angle are obtained through calculation, and the cantilever end torsion angle and deflection are further obtained through calculation. Compared with the prior art, the relation between the structural parameters and the cantilever end corner can be directly reflected, so that parameter sensitivity analysis and engineering optimization design can be facilitated, and the applicability of engineering is improved.
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