A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Arch bridge arch rib hoisting linear control method
The invention discloses an arch bridge arch rib hoisting linear control method, and relates to the technical field of bridge engineering structure construction.The method comprises the steps that measured values of linear control point coordinates of erected arch rib sections are obtained through measurement; according to the actually measured coordinate value and the theoretical coordinate value of the linear control point of the erected arch rib section and the theoretical coordinate value of the linear control point of the next arch rib section, the predicted coordinate value of the linear control point of the next arch rib section is determined through a rigid body motion transformation formula; and hoisting and splicing the next section of arch rib section according to the predicted value of the linear control point coordinate of the next section of arch rib. The problems that in the prior art, in order to correct errors between measured values and predicted values of arch rib segment linear control points, a CAD drawing method is generally adopted to make a follow-up arch rib position map for correction, time is wasted, efficiency is low, and the error correction accuracy cannot be guaranteed are solved.
本发明公开了一种拱桥拱肋吊装线形控制方法，涉及桥梁工程结构施工技术领域，该方法包括：测量获取已架设拱肋节段线形控制点坐标实测值；根据已架设拱肋节段线形控制点坐标实测值和坐标理论值，以及下一段拱肋线形控制点坐标理论值，通过刚体运动变换公式，确定下一段拱肋线形控制点坐标预测值；根据下一段拱肋线形控制点坐标预测值，吊装拼接下一段拱肋节段。解决了现有技术中为了对拱肋节段线形控制点实测值与预测值之间的误差进行修正，一般采用CAD作图法作出后续拱肋位置图进行修正，存在费时效率低，误差修正的准确度无法保证的问题。
Arch bridge arch rib hoisting linear control method
The invention discloses an arch bridge arch rib hoisting linear control method, and relates to the technical field of bridge engineering structure construction.The method comprises the steps that measured values of linear control point coordinates of erected arch rib sections are obtained through measurement; according to the actually measured coordinate value and the theoretical coordinate value of the linear control point of the erected arch rib section and the theoretical coordinate value of the linear control point of the next arch rib section, the predicted coordinate value of the linear control point of the next arch rib section is determined through a rigid body motion transformation formula; and hoisting and splicing the next section of arch rib section according to the predicted value of the linear control point coordinate of the next section of arch rib. The problems that in the prior art, in order to correct errors between measured values and predicted values of arch rib segment linear control points, a CAD drawing method is generally adopted to make a follow-up arch rib position map for correction, time is wasted, efficiency is low, and the error correction accuracy cannot be guaranteed are solved.
本发明公开了一种拱桥拱肋吊装线形控制方法，涉及桥梁工程结构施工技术领域，该方法包括：测量获取已架设拱肋节段线形控制点坐标实测值；根据已架设拱肋节段线形控制点坐标实测值和坐标理论值，以及下一段拱肋线形控制点坐标理论值，通过刚体运动变换公式，确定下一段拱肋线形控制点坐标预测值；根据下一段拱肋线形控制点坐标预测值，吊装拼接下一段拱肋节段。解决了现有技术中为了对拱肋节段线形控制点实测值与预测值之间的误差进行修正，一般采用CAD作图法作出后续拱肋位置图进行修正，存在费时效率低，误差修正的准确度无法保证的问题。
Arch bridge arch rib hoisting linear control method
一种拱桥拱肋吊装线形控制方法
XIE GUOWU (author) / PENG XUMIN (author) / LIU JINPING (author) / WANG JUNWEN (author) / WANG WENYANG (author) / CAI ZHENGDONG (author) / CHEN ZHONGYU (author) / WANG KEBING (author) / CHEN WEI (author)
2023-07-25
Patent
Electronic Resource
Chinese
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