灰色理论在某刚构—连续组合梁桥线性监控的应用

Application of Grey Theory to Alignment Control of A Rigid Framework Continuous Combination Beam Bridge

将灰色理论应用于刚构——连续组合梁施工线形监控计算中,以前期的实测值与计算的理想桥梁线性的误差序列为原始序列建立灰色预测模型,及时地对已出现的误差进行调整,以确保中、后期各梁段施工线形调控计算和实施的精确度,最终达到竣工后桥梁线形与目标线形的吻合。通过对某刚构——连续组合梁桥监控的实施,使该桥合龙精度和成桥线形均达到了期望的效果。

The grey theory is applied to the alignment control of rigid framework continuous combination beam bridge.Taking previous measurement and linear error sequence of ideal bridges as original sequence,the author established grey prediction model,timely adjusting the error occurred so as to ensure the calculation accuracy of alignment control of every girder segment in entire construction can be made.By the implementation of alignment control of a rigid framework continuous combination beam bridge,the bridge closure precision and bridge linear reached the expectation.