Abstract: Basing on the analysis of additional internal forces influencing the long-span stone arch bridge with deteriorated arch axis，spandrel construction is adjusted in steps and segments by the influence line loading method. The adjusting load process is verified by Midas /Civil structure software，and the reasonable adjusting load process of spandrel construction for long-span stone arch bridge with deteriorated arch axis is proposed. In light of engineering practice，it is showed that the adjusting load process proposed is reasonable and feasible.

Key words: stone arch bridge, adjusting load, arch axis, spandrel construction, additional internal force

摘要： 在分析附加内力对劣化拱轴线大跨度石拱桥内力影响的基础上，运用影响线加载法对拱上建筑进行分节段 分步骤调整，通过Midas/Civil结构软件对调载工序进行验证，提出劣化拱轴线大跨度石拱桥拱上建筑合理调载工 序。工程实践应用表明，所提出的劣化拱轴线大跨石拱桥拱上建筑调载工序是合理的、可行的。

关键词: 石拱桥, 调载工序, 拱轴线, 拱上建筑, 附加内力