Citation: Zhao Yanlei, Ji Shuying, Miao Chuandong. BIM-based Automatic Calculation Method of Tunnel Engineering. Journal of Information Technologyin Civil Engineering and Architecture, 2020, 12(5): 20-25. doi: 10.16670/j.cnki.cn11-5823/tu.2020.05.04
2020, 12(5): 20-25. doi: 10.16670/j.cnki.cn11-5823/tu.2020.05.04
BIM-based Automatic Calculation Method of Tunnel Engineering
96786 Troops, Beijing 102200, China |
In view of the current problems of low efficiency and complex calculation existing in establishing tunnel excavation model by using Revit software, this paper innovates the modeling method on the basis of existing functions of the software, improving the modeling speed. The parameterized component family contributes to the reusable model, and the detailed list function contributes to the automatic operand, both resulting in better application of BIM technology in the tunnel excavation and construction. In that the structural beam possesses parametric cross sections, and can be drawn easily, it is used to create parametric beam family. The section parametric beam family is then applied in Revit to rapidly draw the tunnel excavation model by picking up axis command. Both the surface wall and surface roof families are applied to create models for multi-layer sprayed concrete, which provides convenience for the 4D construction simulation. The detailed lists of wall and vault are used for instant calculation of the concrete quantity for spray. The curtain panel family is used for the modeling of single anchor, making the model parameterized, which improves the modeling efficiency. The command of reinforcement mesh is applied to solve the difficulties in drawing reinforcement mesh of side wall. By changing the parameters of steel mesh, the size of steel mesh can be controlled, leading to easy obtaining the calculation quantity and better controllability of the model.
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