宽幅无风撑连续梁拱组合桥设计与计算分析

Design, Calculation and Analysis of Wide-span Continuous Beam Arch Composite Bridge without Wind Braces

摘要:

以嘉峪关市金港路上跨清嘉高速公路桥梁为工程背景，对桥梁造型、结构尺寸和设计参数、设计要点进行阐述，结合桥梁施工步骤对结构进行研究和计算分析，主要介绍了宽幅无风撑中承式连续梁拱组合桥结构体系的受力特点，以及使用过程中各构件的强度、应力和挠度，并针对桥梁整体稳定性和宽幅横梁进行计算分析，确保了结构的强度和稳定性。该桥造型独特、受力复杂，可为类似桥梁设计提供参考。

Abstract:

Taking the bridge spanning the Qingjia Expressway on Jingang Road in Jiayuguan City as the engineering background, the bridge shape, structural dimensions, design parameters and design essentials are set forth. Combined with the bridge construction steps, the structure is studied, calculated and analyzed. The stress characteristics of the wide-span no-wind-brace half-through continuous beam arch composite bridge structure system are mainly introduced including the strength, stress and deflection of each component during usage. The overall stability and wide cross beam of the bridge are calculated and analyzed to ensure the strength and stability of structures. The bridge has the unique shape and complex force, which can provide reference for the design of similar bridges.