预应力混凝土T构下部结构转体系统空间有限元局部应力分析

Spatial Finite Element Analysis of Local Stress of Rotating System of Prestressed Concrete T-Frame Substructure

【目的】近年来,随着我国交通强国的建设,转体桥的应用越来越广泛,而转体桥主墩设计作为关键点之一,分析研究其受力性能显得十分必要。【方法】本研究以(2×60 m)T构转体桥为背景,应用Midas FEA建立其下部结构主墩转体过程局部分析模型,分析其在不平衡荷载下结构转体过程中的力学性能。【结果】同时验证了本案例局部构件设计的合理性和安全性。【结论】旨在为同类工程的设计提供借鉴。

[Purposes]With the construction of our transportation power,the application of rotary bridge has become more and more widespread in recent years,and it is very necessary to analyze the mechanical performance of the main pier design of rotary bridge as one of the key points.[Methods]Based on the(2×60 m)T-structure rotary bridge as the background,Midas FEA was used to establish a local analysis model of the main pier of the substructure during the rotating process.[Findings]Analyze its mechanical properties under the unbalanced load,and verify the rationality and safety of the local component design of this case.[Conclusions]Aiming to provide reference for the design of similar projects.