基于BIM技术的轨道交通桥梁工程量计算

为了解决轨道交通桥梁工程数量计算中存在的工程量信息传递次数多、效率不高等问题,提出一种基于结构化数据的工程量计算方式,省去了基于二维图纸进行工程量计算方式中的信息传递过程,避免了三维模型成熟度不高或信息缺失造成的数量丢失。具体做法为:采用数量项类型划分、分类计算、混合方式编码等方法,建立构件与工程数量、工程数量与清单的映射关系,可跳过图纸或模型进行工程量计算和工程量清单的输出。在智能京张BIM设计过程中,通过编写桥梁工程数量计算软件进行工程数量的计算和输出,验证了该方法的可行性。

Quantity Calculation Method of Rail Transit Bridge Engineering Based on BIM Technology

An engineering quantity calculation method with fewer information passes based on structured engineering data is proposed to improve the calculation efficiency in rail transit bridge engineering. This method avoids the loss of quantity due to the immature 3 D model and the lack of information during transmission. By establishing the relationship between components and quantity,and the relationship between quantity and bill,quantity is calculated and the quantity bill is output skipping the drawings and models,by using the method of classifying quantity type,classification calculation and mixed coding. During the BIM design of intelligent Beijing-Zhangjiakou High-speed Railway, the calculation software is written to demonstrate the feasibility of this method.