澧河古石桥结构性能研究及维修加固方案探讨

Performance Research and Repair Scheme of Li River Ancient Stone Bridge

为指导河南龙泉澧河古石桥维修加固工程,针对该桥残损现状及相应原因进行分析,同时采用数值方法对其结构性能进行研究,探讨了澧河古石桥的受力变形特点,结果表明正常使用条件下,该桥结构是安全的.该桥破坏主要根源在于基础破坏、石材材性退化以及腰铁残损.针对上述问题,分别提出增补桩基、黏结加固和局部修配石材以及补配修补腰铁的相应举措,以供该石桥的维修加固工程参考.

For guiding Li River ancient stone bridge repair project in Longquan of Henan,we analysed the bridge damage status and the corresponding reasons,studied its structure performance by numerical method,and investigated the stress and deformation characteristics of Li River ancient stone bridge. The results show that under the conditions of normal use,the bridge structure is safe. The main sources about the bridge damages are the foundation damage, stone material degradation and waist iron damage. In view of the above problems,we put forward countermeasures like supplementary pile,reinforcement and local repair,and mending waist iron,providing a reference for the repair project of the stone bridge.