摘要
以某预应力混凝土连续箱梁桥体外索加固施工为工程背景,在施工过程中,对其进行全过程监测,掌握桥梁线形及关键截面内力的变化规律,通过理论模型仿真数值对比分析,加固完工后通过再次梁体检测,综合评定其施工加固效果,结果表明该预应力体外索加固施工方法达到既定过程及最终设计预期。相关加固监测分析方法对类似桥梁的加固可提供理论数据和经验。
Taking the external cable reinforcement construction of a prestressed concrete continuous box girder bridge as the engineering background,during the construction process,the whole process is monitored to grasp the variation law of the bridge s alignment and the internal force of key sections.Through the comparative analysis of theoretical model simulation numerical values,and the girder testing after reinforcement construction,the construction reinforcement effect is comprehensively evaluated.The results show that the prestressed external cable reinforcement construction method meets the established requirements.Relevant reinforcement monitoring and analysis methods can provide theoretical data and experience for the reinforcement of similar bridges.
出处
《福建建设科技》
2025年第2期69-72,共4页
Fujian Construction Science & Technology
关键词
体外索加固
连续箱梁
加固监测
有限元计算
external cable reinforcement
continuous box girder
reinforcement monitoring
finite element calculation
