悬臂浇筑施工中连续箱梁预应力管道摩阻测试

Pipeline hindering test of continual box beam prestressed in cantilever pouring construction

通过应用最小二乘法原理,由规范中的公式推导预应力管道摩阻的计算公式,结合顺德大学特大桥悬臂浇筑施工连续箱梁预应力管道摩阻的现场测试,计算出实际预应力管道摩阻系数,并与设计值和规范值比较,表明管道成孔良好,符合设计要求。

According to use the principle of smallest second multiplication, from using standard formula to put out the calculative formula of prestressed pipeline hindering, combining with the local test of specially big bridge cantilever pouting construction continual box beam prestressed pipeline hindering in Shunde university, calculates practical prestressed pipeline hindering modulus, and compares with de.sign value and standard value, indicates that pipeline becoming hole is good and meet design demand.