高速公路扩建既有渡槽加固防护及力学性能分析  

Analysis of reinforcement protection and mechanical performance of existing aqueducts in highway expansion

作　　者：程龙龙 CHENG Long-long

机构地区：[1]中铁十九局集团华东工程有限公司,浙江余姚315402

出　　处：《建筑机械》2025年第4期223-227,M0004,共6页Construction Machinery

摘　　要：为研究既有受损渡槽加固设计及施工方法的可行性,文章以某地区受损渡槽为例,对加固后渡槽的整体强度及加固渡槽临时支撑结构的强度进行有限元分析,验证加固方案的可行性,并阐述既有受损渡槽的加固施工关键技术。研究结果表明:加固后渡槽结构、中部支撑结构受到的最大应力均远小于混凝土破坏的强度;临时支撑结构受到的最大剪应力小于钢结构抗剪强度;在施工荷载作用下,临时支撑结构强度满足强度要求。To study the feasibility of the design and construction methods for strengthening existing damaged aqueducts,a case study of a damaged aqueduct in a specific region was conducted.Finite element analysis was performed on the overall strength of the strengthened aqueduct and the strength of the temporary support structures used during the reinforcement process.The feasibility of the proposed strengthening scheme was verified,and key construction techniques for reinforcing the damaged aqueduct were elucidated.The study results indicate that the maximum stress in both the strengthened aqueduct structure and the central support structure is significantly lower than the concrete's failure strength.

关 键 词：渡槽 加固 施工方法 有限元分析 

分 类 号：TV698.23[水利工程—水利水电工程]