摘要
结合青兰渡槽工程预应力张拉施工实测数据及施工情况，阐述预应力钢绞线张拉应力伸长量的理论依据及计算过程。针对预应力筋张拉伸长量偏大或者偏小的情况进行分析，分析总结降低预应力张拉伸长量偏差值的有效措施。
Dragonhead aqueduct engineering measured data and the construction of prestressed tensioning construction, expounds the theory basis of prestressed steel strand tension stress and elongation and the calculation process. For long stretches the prestressed tendon of small or large amount of case analysis, the analysis summary reduce transverse tensile long quantity deviation of effective measures.
出处
《南水北调与水利科技》
CAS
CSCD
北大核心
2015年第B02期137-140,共4页
South-to-North Water Transfers and Water Science & Technology
关键词
大体积
张拉施工
预应力
张拉应力
伸长量
偏差值
偏差预防
large volume
tensioning construction
prestressed
the tensile stress
elongation
deviation
deviation prevention
