Analysis and Research on the Construction Stage of Suspension Bridge Steel Towers Using Midas Civil and ANSYS
DOI:
https://doi.org/10.13052/2024.ACES.J.400811Keywords:
Construction stage, Midas Civil and ANSYS, steel towers, suspension bridgeAbstract
Scholars have conducted extensive research on the anchoring methods and cable systems of suspension bridges, but there is relatively less research on the analysis of steel tower construction stages. As an important supporting part of the entire bridge, the stability of steel towers during installation directly affects the safety assurance during construction. In order to comprehensively understand the dynamic characteristics of steel towers during the construction stage, this paper presents a comprehensive analysis of the construction process of steel towers in large-span suspension bridges, focusing on the roles of active and cross braces in maintaining structural stability. Utilizing advanced finite element modelling techniques in both Midas Civil and ANSYS, the study evaluates the deformation and stress responses of the steel tower under various loading conditions, including self-weight and wind loads. The findings reveal critical insights into the maximum deformation behaviors and stress distributions at different construction stages, underscoring the importance of jacking operations and the strategic installation of braces. By comparing the performance of structures with and without these braces, the research demonstrates their essential role in enhancing the overall stability and safety of the tower during construction. Furthermore, considering the influence of wind loads and crane loads on the structure in Midas Civil, the paper analyzes the changes in structural strength and stiffness, providing useful references and guidance for this project and similar engineering endeavors.
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