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A platform for research: civil engineering, architecture and urbanism
BIM-based steel truss arch bridge bolt connection construction precision control method
The invention discloses a BIM-based steel truss arch bridge bolt connection construction precision control method. According to the method, directly modeling is carried out on each prefabricated partthrough laser scanning of factory components; and with bolt holes as positioning points, the image recognition accuracy is improved. At an on-site installation link, image processing equipment is combined with a picture identification technology and thus the mounting direction of a part and a bolt control angle are identified, information is input into a revit model, geometric coordination conditions are realized in the revit model through program development, and a correct mounting position of a rear mounting component is provided; and an early warning is made under the condition that a spliced part has a relatively large bolt connection precision error. In the erecting process of the steel truss arch bridge, errors caused by manufacturing, transporting and the like of steel components are eliminated, and the bolt connecting precision is controlled, so that the current situation that the bolt connecting precision of an existing splice plate is late to find and difficult to control isavoided, and problems of stress deviation and imperfect linetype caused by dislocation of bolt hole sites of the steel truss arch bridge are solved.
本发明公开了一种基于BIM的钢桁拱桥螺栓连接施工精度控制方法。本发明方法首先通过激光扫描出厂构件对每一个预制构件进行直接建模；以螺栓孔为定位点，提高了图像识别的精确度。在现场安装环节，利用图像处理设备结合图片识别技术，识别构件的安装方位与螺栓控制角度，将信息导入revit模型，通过程序开发，在Revit模型内实现几何协调条件，给出后安装构件的正确安装位置，当相拼接的构件存在螺栓连接精度误差较大的情况下发出预警。在钢桁拱桥的架设过程中，消除钢构件制作、运输等带来的误差，控制螺栓连接精度，以解决现有的拼接板螺栓连接精度控制发现晚、控制难的现状，解决钢桁拱桥的由于螺栓孔位错位带来的应力产生偏差、线型不够完美的问题。
BIM-based steel truss arch bridge bolt connection construction precision control method
The invention discloses a BIM-based steel truss arch bridge bolt connection construction precision control method. According to the method, directly modeling is carried out on each prefabricated partthrough laser scanning of factory components; and with bolt holes as positioning points, the image recognition accuracy is improved. At an on-site installation link, image processing equipment is combined with a picture identification technology and thus the mounting direction of a part and a bolt control angle are identified, information is input into a revit model, geometric coordination conditions are realized in the revit model through program development, and a correct mounting position of a rear mounting component is provided; and an early warning is made under the condition that a spliced part has a relatively large bolt connection precision error. In the erecting process of the steel truss arch bridge, errors caused by manufacturing, transporting and the like of steel components are eliminated, and the bolt connecting precision is controlled, so that the current situation that the bolt connecting precision of an existing splice plate is late to find and difficult to control isavoided, and problems of stress deviation and imperfect linetype caused by dislocation of bolt hole sites of the steel truss arch bridge are solved.
本发明公开了一种基于BIM的钢桁拱桥螺栓连接施工精度控制方法。本发明方法首先通过激光扫描出厂构件对每一个预制构件进行直接建模；以螺栓孔为定位点，提高了图像识别的精确度。在现场安装环节，利用图像处理设备结合图片识别技术，识别构件的安装方位与螺栓控制角度，将信息导入revit模型，通过程序开发，在Revit模型内实现几何协调条件，给出后安装构件的正确安装位置，当相拼接的构件存在螺栓连接精度误差较大的情况下发出预警。在钢桁拱桥的架设过程中，消除钢构件制作、运输等带来的误差，控制螺栓连接精度，以解决现有的拼接板螺栓连接精度控制发现晚、控制难的现状，解决钢桁拱桥的由于螺栓孔位错位带来的应力产生偏差、线型不够完美的问题。
BIM-based steel truss arch bridge bolt connection construction precision control method
一种基于BIM的钢桁拱桥螺栓连接施工精度控制方法
WANG XINDING (author) / YUAN YAN (author)
2020-07-10
Patent
Electronic Resource
Chinese
Adjustable leveling construction channel for steel truss arch bridge parallel connection rod piece
| European Patent Office | 2020