(1 天津大学建筑工程学院，天津 300072； 2 山东建筑科学研究院，济南 250031)

［摘要］通过对实际工程中18根195m双跨后张有粘结部分预应力混凝土连续梁进行施工张拉阶段和模拟使用阶段的工程实测，结合我国设计规范和计算机程序，分析和探讨了摩擦系数的取值、混凝土截面应变分布、侧向约束的影响等，得出一些有益的结论，希望对工程设计和施工有所帮助。

［关键词］粘结；部分预应力；摩擦系数；侧向约束；实测

A measured study of posttensioning bonded prestressed concrete continuous beam

Yang Jianjiang¹, Liu Zhi² (1 School of Civil Engineering, Tianjin University, Tianjin 300072, China; 2 Shandong Provincial Academy of Building Research, Jinan 250031, China)

Abstract:Based on the measured construction research at its stretching stage of a two-span, post-tensioning bonded partially prestressed concrete continuous beam, the value of friction coefficient, the strain in the concrete beam´s cross-section, and the effect of lateral restraint are analyzed and discussed. The conclusions can be helpful for engineering design and construction.

Keywords:bonded; partially prestressed; friction coefficient; lateral restraint; measure