Application Study Of BIM Technology Combined With Static And Dynamic Image Analysis In Bridge Construction

In recent years,engineering construction has gradually changed from the previous rapid construction mode to a refined construction mode,and increasing the information rate of construction has also become the focus of current development.The booming development of BIM technology in the field of housing construction has also brought new directions to bridge engineering in infrastructure.With the promotion of the application of bridge BIM at the policy level,its practical value will gradually be reflected.The research work of this thsis focuses on improving the informatization rate of bridge engineering construction,applying digital image processing theory and BIM technology to the bridge construction and construction process,and providing new solutions to the problems in the bridge construction process.The research first addresses the problems of bridge BIM modeling,and discusses three efficient and sophisticated modeling methods: Revit parametric modeling,Revit software programming development modeling,and visual programming modeling.In the application of bridge BIM technology,The research realizes the visualization construction technology in three aspects: typical construction methods,construction process simulation,construction simulation,and construction collision inspection.In addition,The research also conducted in-depth research on the scalability of the BIM platform.The C # programming language was used to expand the functionality of Revit software to achieve efficient BIM applications.Finally,the actual bridge modeling and application analysis are performed for a practical project,and the technical advantages and application feasibility of the research contents are verified.In the research of static image analysis technology,this thesis realizes the engineering application of two technical directions,namely,on-site image recognition and on-site three-dimensional reconstruction.Firstly,the Matlab program is developed according to relevant theories to realize the image content recognition of the project site,and the technical application of precast beam factory management and construction progress management are proposed.Secondly,using the image data obtained by oblique photography,the software is used to reconstruct the image three-dimensional model of the actual project site,and the matching method between the three-dimensional reconstruction model and the accurate BIM model is explored,and the project progress control,completion acceptance and engineering quality control are carried out.Finally,the processing results are integrated into the BIM platform to achieve scientific management of the project site.In the research of dynamic image analysis technology,a new method for measuring constitutive motion information based on time history analysis of light intensity is proposed.Aiming at the video measurement results,the pixel frequency probability distribution histogram method and the structure image frequency point cloud method are proposed respectively to directly obtain the structure vibration frequency.And then,proposing the application of video monitoring structure vibration and cable force.This thsis also designed two verification experiments,including using the mobile phones to measure the single-degree-of-freedom ball vibration and using the high-speed cameras to measure the cable force,and finally use the proposed method to calculate the ball vibration frequency and cable tension,the results show that the analysis is accurate and the effect is ideal.