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Dynamic pushing deviation correction construction method for large-curvature bridge
The large-curvature bridge dynamic pushing deviation correction construction method comprises the following steps that firstly, a pushing system is arranged; 2, extracting a design center line track of the curve bridge, dividing a design center line of the bridge into a plurality of arc-shaped sections, and performing linear regression fitting on each arc-shaped section by adopting a straight line; 3, positioning target spots are arranged on the to-be-pushed beam section; 4, optimizing the pushing direction; 5, calculating a set {delta xi, delta yi} of all incremental components of the whole curve bridge; sixthly, short-stroke pushing is conducted one by one; 7, recalibrating a positioning target spot and a design center line track; 8, performing dynamic deviation correction calculation; 9, dynamic deviation correction is executed; and 10, the step 6 to the step 9 are repeated until pushing of all linear regression fitting line segments is completed. According to the method, the technical problems that in the traditional incremental launching process, temporary adjustment is usually carried out based on field team experience, the method is lack of accuracy, and the risk of increasing installation stress exists are solved.
一种大曲率桥梁动态顶推纠偏施工方法包括步骤如下：步骤一，布设顶推系统；步骤二，提取曲线桥梁的设计中线轨迹，将桥梁的设计中线分割成若干弧形段，采用直线对每段弧形段进行线性回归拟合；步骤三，在待顶推的梁段上设置定位靶点；步骤四，优化顶推方向；步骤五，计算整个曲线桥梁的全部顶推分量集合{Δxi,Δyi}；步骤六，逐次进行短行程顶推；骤七，进行定位靶点与设计中线轨迹的重新标定；步骤八，进行动态纠偏计算；步骤九，执行动态纠偏：步骤十，重复步骤六至步骤九，直至完成全部线性回归拟合线段顶推。本发明解决了传统的顶推过程中纠偏方法通常是基于现场班组经验，进行临时调整，该方法缺乏准确性，并存在增加安装应力风险的技术问题。
Dynamic pushing deviation correction construction method for large-curvature bridge
The large-curvature bridge dynamic pushing deviation correction construction method comprises the following steps that firstly, a pushing system is arranged; 2, extracting a design center line track of the curve bridge, dividing a design center line of the bridge into a plurality of arc-shaped sections, and performing linear regression fitting on each arc-shaped section by adopting a straight line; 3, positioning target spots are arranged on the to-be-pushed beam section; 4, optimizing the pushing direction; 5, calculating a set {delta xi, delta yi} of all incremental components of the whole curve bridge; sixthly, short-stroke pushing is conducted one by one; 7, recalibrating a positioning target spot and a design center line track; 8, performing dynamic deviation correction calculation; 9, dynamic deviation correction is executed; and 10, the step 6 to the step 9 are repeated until pushing of all linear regression fitting line segments is completed. According to the method, the technical problems that in the traditional incremental launching process, temporary adjustment is usually carried out based on field team experience, the method is lack of accuracy, and the risk of increasing installation stress exists are solved.
一种大曲率桥梁动态顶推纠偏施工方法包括步骤如下：步骤一，布设顶推系统；步骤二，提取曲线桥梁的设计中线轨迹，将桥梁的设计中线分割成若干弧形段，采用直线对每段弧形段进行线性回归拟合；步骤三，在待顶推的梁段上设置定位靶点；步骤四，优化顶推方向；步骤五，计算整个曲线桥梁的全部顶推分量集合{Δxi,Δyi}；步骤六，逐次进行短行程顶推；骤七，进行定位靶点与设计中线轨迹的重新标定；步骤八，进行动态纠偏计算；步骤九，执行动态纠偏：步骤十，重复步骤六至步骤九，直至完成全部线性回归拟合线段顶推。本发明解决了传统的顶推过程中纠偏方法通常是基于现场班组经验，进行临时调整，该方法缺乏准确性，并存在增加安装应力风险的技术问题。
Dynamic pushing deviation correction construction method for large-curvature bridge
一种大曲率桥梁动态顶推纠偏施工方法
XIAO SHIHUI (author) / CHEN ZHI (author) / ZU GONGBO (author) / WANG CHUANG (author) / LI SHICONG (author) / SUN ZHUANG (author) / QI JIAXIN (author)
2024-02-02
Patent
Electronic Resource
Chinese
IPC:
E01D
BRIDGES
,
Brücken
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