丹河大桥拱圈与拱架共同作用研究

本文依托世界最大跨径石拱桥——丹河大桥的课题研究，通过对大桥主拱圈与拱架在分步砌筑过程中的受力分析、模型试验以及实桥测试的对比研究，找到了拱圈与拱架共同作用的试验与理论依据，发现了拱脚高应力区，为大跨径石拱桥的设计、施工与控制提供了科学依据。

Research on Coaction of Arch Ring and Arch Centering of Danhe River Bridge

On the basis of the issue research on the world longest span stone arched bridge -Danhe River Bridge and by the strength analysis of coaction of arch ring and arch rack in the process of divisional masonry, model experiments and the contrast research among real bridge tests,bases of theory and coaction experiment of arch and arch centring are found and arch springing high stress area discovered,that supplies the science basis of design construction and control of long span arch bridges.