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A platform for research: civil engineering, architecture and urbanism
Method and system for tangent installation of girder section of main girder
The invention relates to a method and system for tangent installation of a girder section of a main girder, and relates to the technical field of bridge construction control, and the method comprises the following steps: in a constant-temperature environment, obtaining the actually measured elevation of each preset control point on an erected girder section; performing curve fitting and derivation on the actually measured elevation to obtain a beam end tangent angle of the cantilever end of the erected beam section; the angle of a laser transmitter fixedly arranged at the cantilever end is adjusted based on the beam end tangent angle, so that the elevation of the laser point reaches the preset elevation; and when the elevation of the rear end of the to-be-erected beam section is adjusted to be consistent with the actually measured elevation corresponding to the preset control point on the cantilever end, the elevation of the front end of the to-be-erected beam section is adjusted until the laser receiver fixedly arranged on the to-be-erected beam section receives the laser emitted by the laser emitter, and tangent installation between the to-be-erected beam section and the erected beam section is achieved. The beam end tangent angle is calculated through the curve fitting method, it is guaranteed that the laser angle is always parallel to the beam end tangent angle through the laser method, and high-precision tangent installation is achieved.
本申请涉及一种主梁梁段切线安装的方法和系统，涉及桥梁施工控制技术领域，包括在恒温环境下，获取已架梁段上各个预设控制点的实测标高；对实测标高进行曲线拟合并求导，得到已架梁段悬臂端的梁端切线角；基于梁端切线角对固设于悬臂端上的激光发射器的角度进行调整，以使得激光点的标高达到预设标高；将待架梁段后端的标高调整至与悬臂端上预设控制点对应的实测标高一致时，对待架梁段前端的标高进行调整，直至固设于待架梁段上的激光接收器接收到激光发射器发射的激光，实现待架梁段与已架梁段之间的切线安装。本申请通过曲线拟合方法计算出梁端切线角，并采用激光法保证激光角度始终平行于梁端切线角，实现了高精度的切线安装。
Method and system for tangent installation of girder section of main girder
The invention relates to a method and system for tangent installation of a girder section of a main girder, and relates to the technical field of bridge construction control, and the method comprises the following steps: in a constant-temperature environment, obtaining the actually measured elevation of each preset control point on an erected girder section; performing curve fitting and derivation on the actually measured elevation to obtain a beam end tangent angle of the cantilever end of the erected beam section; the angle of a laser transmitter fixedly arranged at the cantilever end is adjusted based on the beam end tangent angle, so that the elevation of the laser point reaches the preset elevation; and when the elevation of the rear end of the to-be-erected beam section is adjusted to be consistent with the actually measured elevation corresponding to the preset control point on the cantilever end, the elevation of the front end of the to-be-erected beam section is adjusted until the laser receiver fixedly arranged on the to-be-erected beam section receives the laser emitted by the laser emitter, and tangent installation between the to-be-erected beam section and the erected beam section is achieved. The beam end tangent angle is calculated through the curve fitting method, it is guaranteed that the laser angle is always parallel to the beam end tangent angle through the laser method, and high-precision tangent installation is achieved.
本申请涉及一种主梁梁段切线安装的方法和系统，涉及桥梁施工控制技术领域，包括在恒温环境下，获取已架梁段上各个预设控制点的实测标高；对实测标高进行曲线拟合并求导，得到已架梁段悬臂端的梁端切线角；基于梁端切线角对固设于悬臂端上的激光发射器的角度进行调整，以使得激光点的标高达到预设标高；将待架梁段后端的标高调整至与悬臂端上预设控制点对应的实测标高一致时，对待架梁段前端的标高进行调整，直至固设于待架梁段上的激光接收器接收到激光发射器发射的激光，实现待架梁段与已架梁段之间的切线安装。本申请通过曲线拟合方法计算出梁端切线角，并采用激光法保证激光角度始终平行于梁端切线角，实现了高精度的切线安装。
Method and system for tangent installation of girder section of main girder
一种主梁梁段切线安装的方法和系统
YUAN RENAN (author) / HAN RUOYU (author) / QIN SHUNQUAN (author) / XIAO HAIZHU (author) / CHEN YU (author) / WANG ZHEN (author) / WANG ZHEYAO (author)
2023-06-06
Patent
Electronic Resource
Chinese
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