三拱肋蝴蝶拱桥受力性能与稳定性优化分析

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【中图分类号】：U448.222 【文献标志码】：A 【文章编号】：1008-3197（2025）06-29-04

【DOI编码】：10.3969/j.issn.1008-3197.2025.06.007

Force Performance and Stability Optimization Analysis of Three-Arch Rib Butterfly Arch Bridge

DENG Delun1，LIANG Chuang²

（1.GuangzhouMunicipalEngieringDesignAndReseachIsituteCo.，Ltd，Guangzhou5Oo，China;2.CCCConstructioGroup Co.，Ltd.，Beijing 101304，China）

【Abstract】：Inordertooptimallyselectabutterflyarchbridgethatintegratesfunctionalandaesthetic values，acalculation and analysis were conducted to optimize key structural control parameters，including the outward inclination angleof the sidearches，the stiffess ratio between thearch and the beam，and the rise-to-spanratio of the middle arch.This process resulted in well-coordinated and mechanically reasonable control parameters.By adopting theseoptimizeddesignparameters，thebridgedesign demonstrates excellntstability，rational structural stress，andan elegantappearance，effectively meting therequirements ofthe bridge location environment，structural mechanics，and aesthetic design.

【Key words】 ： butterfly arch bridge;structural control parameters;stiffness ratio between the arch and the beam;rise-tospan ratio of the middle arch;outward inclination angle of the side arches

蝴蝶拱桥因造型优美、结构整体受力合理、拱梁组合刚度较大、结构轻盈、承载能力较高及跨越障碍能力强，受到越来越多建设者青睐。（剩余3077字）