摘要
针对钢管混凝土拱桥建设中预制拱肋预拼装验收遇到的问题,探讨一种结合三维激光扫描与建筑信息模型(Building Information Modeling,BIM)的虚拟验收方法。利用三维激光扫描技术获取预制拱肋的高精度实际点云模型并生成实际BIM模型,然后依据设计图纸建立预制拱肋的设计BIM模型并通过离散化处理生成设计点云模型,通过匹配BIM模型并进行布尔运算对预制拱肋外观进行初步验收,进一步用点云模型检测钢管直径尺寸、拱轴线并对点云模型进行精确配准计算模型间点云偏差,实现精确验收。结果表明:所测量预制拱肋方法符合相关规范要求,简化了验收流程,提高了验收结果的可靠性,并为类似结构的验收提供了参考。
This paper explores a virtual acceptance method that combines 3D laser scanning and Building Information Modeling(BIM)to address the issues encountered during the pre-assembly and acceptance of prefabricated arch ribs in the construction of steel tube concrete arch bridges.The method utilizes 3D laser scanning technology to obtain a high-precision actual point cloud model of the prefabricated arch ribs and generates the actual BIM model.Then,a design BIM model of the prefabricated arch ribs is created based on the design drawings,and a design point cloud model is generated through discretization processing.The method performs an initial acceptance of the appearance of the prefabricated arch ribs by matching the BIM models and conducting Boolean operations.Additionally,the point cloud model is used to check the steel tube diameter,arch axis,and to precisely register and calculate the point cloud deviations between the models,achieving accurate acceptance.The results indicate that the proposed method not only meets the relevant code requirements,simplifies the acceptance process and improves the reliability of the acceptance results.but also provides a reference for the acceptance of similar structures.
作者
刘均利
梁阳
安永昌
周洪剑
LIU Junli;LIANG Yang;AN Yongchang;ZHOU Hongjian(Guangxi Key Laboratory of Green Building Materials and Construction Industrialization,Guilin University of Technology,Guilin 541004,China;Guangxi Guitong Engineering Management Group Co.,Ltd.,Nanning 530029,China)
出处
《洛阳理工学院学报(自然科学版)》
2025年第4期16-21,共6页
Journal of Luoyang Institute of Science and Technology:Natural Science Edition
基金
广西区交通厅科技项目(QD2019-263-009)。
关键词
预制拱肋
三维激光扫描
预拼装
BIM
虚拟验收
prefabricated arch ribs
3D laser scanning
pre-assembly
BIM
virtual acceptance
