A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Segmental beam splicing construction linear control method based on photogrammetry
The invention provides a segmental beam splicing construction linear control method based on photogrammetry, and the method comprises the steps: setting an identification mark on the upper surface of a prefabricated bridge section after the pouring of the prefabricated bridge section is completed; a binocular camera is installed below a cab for hoisting operation through a connecting mechanism, and the camera inclines downwards to shoot the identification mark on the precast beam section; identifying the identification marks on the to-be-spliced bridge section and the adjacent spliced bridge section through a camera so as to obtain space coordinates of the to-be-spliced bridge section and the adjacent spliced bridge section, and calculating a control pose of the to-be-spliced bridge section according to the space coordinates of the identification marks on the spliced bridge section; the posture of the lifting appliance is adjusted through a control system, and the lifting appliance is installed in place; and the identification marks on each segmental beam between the two piers are sequentially scanned through the binocular camera, so that the bridge line shape between the two piers is calculated. The safety during working is improved, the working efficiency is improved, and the measurement precision is greatly improved. And moreover, the device can work in a severe environment, and the service life is also prolonged.
本发明提供了一种基于摄影测量的节段梁拼接施工线形控制方法，在预制桥段浇筑完成后，在其上表面上设置识别标志；在吊装作业的司机室下方通过连接机构安装双目相机，相机倾斜向下拍摄预制梁段上的识别标志；通过相机识别待拼接桥段和相邻的已拼接桥段上的识别标志，从而得到其空间坐标，并根据已拼接桥段上识别标志的空间坐标计算待拼接桥段的控制位姿；通过控制系统对吊具的姿态进行调整并安装到位；通过双目相机依次扫描两个桥墩之间的每一个节段梁上的识别标志，从而计算得出两个桥墩之间的桥梁线形。提高工作时的安全性，提高工作效率，使测量精度大幅度提高。且能过够在条件恶劣的环境下工作，工作寿命也得到了提高。
Segmental beam splicing construction linear control method based on photogrammetry
The invention provides a segmental beam splicing construction linear control method based on photogrammetry, and the method comprises the steps: setting an identification mark on the upper surface of a prefabricated bridge section after the pouring of the prefabricated bridge section is completed; a binocular camera is installed below a cab for hoisting operation through a connecting mechanism, and the camera inclines downwards to shoot the identification mark on the precast beam section; identifying the identification marks on the to-be-spliced bridge section and the adjacent spliced bridge section through a camera so as to obtain space coordinates of the to-be-spliced bridge section and the adjacent spliced bridge section, and calculating a control pose of the to-be-spliced bridge section according to the space coordinates of the identification marks on the spliced bridge section; the posture of the lifting appliance is adjusted through a control system, and the lifting appliance is installed in place; and the identification marks on each segmental beam between the two piers are sequentially scanned through the binocular camera, so that the bridge line shape between the two piers is calculated. The safety during working is improved, the working efficiency is improved, and the measurement precision is greatly improved. And moreover, the device can work in a severe environment, and the service life is also prolonged.
本发明提供了一种基于摄影测量的节段梁拼接施工线形控制方法，在预制桥段浇筑完成后，在其上表面上设置识别标志；在吊装作业的司机室下方通过连接机构安装双目相机，相机倾斜向下拍摄预制梁段上的识别标志；通过相机识别待拼接桥段和相邻的已拼接桥段上的识别标志，从而得到其空间坐标，并根据已拼接桥段上识别标志的空间坐标计算待拼接桥段的控制位姿；通过控制系统对吊具的姿态进行调整并安装到位；通过双目相机依次扫描两个桥墩之间的每一个节段梁上的识别标志，从而计算得出两个桥墩之间的桥梁线形。提高工作时的安全性，提高工作效率，使测量精度大幅度提高。且能过够在条件恶劣的环境下工作，工作寿命也得到了提高。
Segmental beam splicing construction linear control method based on photogrammetry
一种基于摄影测量的节段梁拼接施工线形控制方法
WANG MIN (author) / YOU XINPENG (author) / ZHENG HEHUI (author) / XIAO LIN (author) / LI GANG (author) / LIU YANG (author) / DAI HAO (author) / HUANG TAO (author) / YI HUI (author) / CAO LIJING (author)
2023-09-01
Patent
Electronic Resource
Chinese
IPC:
E01D
BRIDGES
,
Brücken
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