Parametric modeling of continuous beam bridges of a high-speed railway based on building information modeling and engineering applications

Abstract

The rapid parametric modeling method for continuous beam bridges of a high-speed railway is established to further improve the application of building information modeling (BIM) technology in bridge construction. Based on the engineering background of the Xinyi River Bridge of the Lian-Xu high-speed railway, the parametric family library of key structural components and construction machinery is enriched, realizing the rapid modeling of complete bridges. As an example, BIM application in bridge engineering is investigated in the construction of prestressed tunnel lofting and full deck support for continuous beam bridges of a high-speed railway. The results show that the proposed method of parametric modeling for continuous beam bridges of a highspeed railway significantly improves the modeling efficiency of bridge structures and construction machinery. The building information models of bridges can improve the lofting accuracy of prestressed tunnels and optimize the expression effect and calculation efficiency of engineering quantity of a full deck support scheme. The results can provide a useful reference and technical support for the construction control of continuous beam bridges of a highspeed railway.