摘要
通过对新疆乌(鲁木齐)准(格尔)铁路一主跨56 m预应力混凝土连续梁进行管道摩阻试验,得出此连续梁实测管道摩阻系数,并与设计要求的管道摩阻系数对比,发现实测管道摩阻力比设计值降低约4%~8%。原因在于设计采用金属波纹管,而因物资供应短缺,现场实际采用塑料波纹管。根据现场试验结果对改用塑料波纹管施工措施的可行性及波纹管施工过程中的质量控制提出了对应的措施,可为以后类似工程提供技术参考。
The pipe friction coefficient of 56 m span prestressed continuous box girder of Urumqi-Zhungeer railway was obtained by test and compared with the design fricdon coefficient. It was found that the fricdon coefficient of the measured is lower than the design value by 4% - 8%. Due to the design of metal bellows, the supply of materials shortage, the plastic corrugated pipe was used in the field. According to the results of field test, the corresponding measures were proposed for the feasibility and quality control of the plastic corrugated pipe in construction, which could provide technical reference for future similar projects.
出处
《铁道建筑》
北大核心
2017年第7期32-34,42,共4页
Railway Engineering
关键词
预应力连续梁
管道摩阻
现场试验
预应力张拉
混凝土
Prestressed continuous girder
Pipe friction
Field test
Prestressed tension
Concrete
