大跨长联梁桥预应力束摩阻系数研究

摘要

联长达520m的某黄河桥采用了预应力混凝土梁桥结构,基于《公路桥梁施工技术规范》,采用先进传感器,进行预应力束摩阻损失系数测定及研究.试验结果指导施工的同时,也表明试验方案的正确可靠性,试验方案可以为类似桥型设计及施工提供参考.%A prestressed concrete girder bridge structure was adopted in a Huanghe River Bridge whose distance between the expansion joints is 520m.According to technical code for construction of highway bridges,advanced sensors were used to determine and study friction loss coefficient of prestressed beam.The experimental results can be used to not only guide the construction but also verify the reliability of the test scheme.Thus,the test scheme can provide a reference for similar bridge design and construction.