摘要
大体量平行钢绞线斜拉索一般采用等张力法进行逐根张拉施工,由于该方法化整为零,因此极有可能在主梁悬浇过程中占用关键线路工期。为提高施工效率,提出了一种基于等张力法原理的斜拉索分批张拉技术,以满足索梁同步施工要求。同时提出分批张拉初始索力、单根钢绞线基准束张力的监控措施。
The single tension of strand with the method of equal tension force is normally used for the large installation of the paralleled cable.While due to the single tension for each strand,the duration for tensioning may take long time which may affect the construction of critical path.To increase the efficiency of construction,one method separated the tensioning work by stages which based on the equal tension force is created to fulfill the requirement for simultaneous construction of cable beam of cable-stayed bridge.Moreover,the monitoring measures of the initial cable force and the single strand force are put forward.
出处
《交通科技》
2016年第1期21-24,共4页
Transportation Science & Technology
关键词
分批张拉
施工初始索力
基准索初张力
等张力法原理
同步施工
staged tensioning
initial cable force
initial tension force of referenced strand
equal force of tensioning principal
simultaneous construction
