摘要
分析了预应力砼平面曲线箱梁腹板产生裂缝的原因,导出了在预应力管道发生位置偏差时径向力的修正计算公式和曲线箱梁腹板厚度的验算公式,讨论了防止曲线箱梁腹板裂缝的措施,可供平面曲线箱梁的设计及施工参考.
Based on the analyses of the reasons for the cracks produced in the webs of curved prestressed concrete box girders, a modified formula is deduced for calculating the radial forces produced from the deviation of the location of prestressing tendons, the further formula is presented for checking the thickness of the webs and the other measures to avoid cracking in the webs are also discussed, which may be reference for the design and construction of such kind of bridge.
出处
《重庆交通学院学报》
2007年第2期1-4,13,共5页
Journal of Chongqing Jiaotong University
