跨坐式单轨线路盖梁支座锚箱横坡超差的调整工艺

Adjustment Technology of Cross Slope Out of Tolerance of Bent Cap Support Anchor Box of Straddle Monorail Line

介绍了影响跨坐式单轨交通轨道梁线形的因素,阐述了盖梁支座锚箱横坡超差可能引发的PC(预应力混凝土)梁端轨面横坡、线间距、抗剪榫与支座下摆高差、锚固螺栓丝牙外露长度等指标超标的问题。通过理论计算和模拟试验,提出了包括改用加工较厚的梯形调整活动板、改制楔紧块等一整套跨坐式单轨PC轨道梁线形调整技术措施。结合实际工程,验证了锚箱横坡超差处理方法的可靠性,并在此基础上总结得出横坡超差调整的工艺方法。

The factors influencing the linear alignment of straddle monorail track are introduced.The cross slope out of tolerance of bent cap anchor box leading to problems of indicators exceeding standards including PC beam end rail surface cross slope,line spacing,height difference between shear tenon and support,exposed length of anchor bolt thread.Through theoretical calculation and simulation test,a set of technical measures for PC track beam linear adjustment,including processing thick trapezoidal adjustment movable plate and reform-ing wedge block,are put forward.On the basis of actual project,the reliability of anchor box cross slope out of tolerance treatment method is verified,and the adjustment method of cross slope out of tolerance is summarized.