Cable structure bridge design method based on BIM model

Abstract

The invention discloses a cable structure bridge design method based on a BIM model, and relates to the field of bridge construction, and the method comprises the steps: initializing bridge parameters, and storing a main tower, a bridge deck, a pile foundation, a suspension rod, a bent cap and a stay cable / suspension cable foundation model; establishing a spatial three-dimensional coordinate system by using a central bisector of the main tower and the bridge deck, calculating and obtaining spatial coordinates of the main tower according to the initialized bridge parameters, and obtaining spatial coordinates of an intersection point of the bridge deck and the main tower; creating a BIM three-dimensional space structure model of each structure unit comprising a main tower model, a stay cable / suspension cable model and a pile foundation model; and combining the BIM three-dimensional space structure models of the structure units to obtain a bridge BIM model. According to the cable structure bridge design method based on the BIM model, modeling and construction of the cable structure bridge BIM model can be completed more efficiently, and the construction period is shortened.

Description

technical field [0001] The invention relates to the field of bridge design methods, in particular to a BIM model-based cable structure bridge design method. Background technique [0002] Bridges are one of the most important structures in traffic engineering. The traditional design tasks mainly focus on the horizontal, vertical, section, reinforcement drawing, structural analysis and calculation of bridge and tunnel structures. From the point of view of expression, designers usually use two-dimensional drawings to express three-dimensional structural forms, and three-dimensional models lacking structure, in addition to being prone to unclear structural expressions, there are often a large number of drawing errors and engineering quantity statistics Errors in construction lead to more construction errors and more design changes. At the same time, the structural calculation is mainly simulated and analyzed from a two-dimensional perspective, or a simplified analysis model is ...

AI Technical Summary

Problems solved by technology

[0004] In specific applications, for the special architectural design process of cable structure bridge construction, which requires high precision, many structural components, and high structural coordination requirements, the conventional BIM modeling scheme takes a long time and requires high technical requirements. It takes no less than the time and manpower of the traditional drawing method to carry out the digital modeling of each structural part of the bridge, which greatly affects the application efficiency of BIM technology in the design and construction of related bridges

At the same time, the design and construction of each bridge will always include a complex spatial configuration different from other bridges. The existing bridge models are relatively simple, and it is difficult to realize the calculation and design modeling of spatially shaped curved configurations.

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