应用基于BIM仿真技术的铁路桥梁工程造价研究

发布时间：2018-01-28 20:39

本文关键词： 工程造价蒙特卡洛方法建筑信息模型施工网络图　出处：《中国铁道科学研究院》2015年硕士论文　论文类型：学位论文

【摘要】：国际上确定工程造价的方法可以分为工程定额法和数据库法,这两种方法的本质是相同的,都是用历史数据推算未来数据。如果历史数据产生的基础和即将建设项目条件出现差别较大,其推算的工程造价将产生重大偏差;我国采用定额法确定工程造价,在实践中出现了诸多问题:一是定额对新技术造价分析相对滞后,更新缓慢;二是利用传统定额法确定的工程成本是一个不变的数值,而这违背了经济学当中生产规模的持续扩大会导致长期平均成本出现下降趋势的观点;三是定额编制的基础已经被市场经济和管理体制改革后不易取得第一手资料的现实所动摇。基于上述三类原因,用定额法确定工程造价受到了一些质疑,有些专家甚至断言10年内工程定额将消失。鉴于此,本论文针对工程造价计算方法中每道工序的资源消耗量是不确定的,然而传统的、静态的定额法计算造价时却忽略这一问题的现象,提出如下研究思路:首先调查施工时每道工序资源消耗的数据,统计分析出资源消耗的分布函数。然后基于优化的网络图算法,并结合蒙特卡洛方法对工程总造价和总工期模拟仿真,确定在一定概率条件下的工程造价。研究把依托工程模型分解为独立的基础构件,并利用Alternative 3D引擎和3ds Max三维建模软件,绘制构件的三维模型。利用数据库技术,把相关的工程信息附加到对应构件上,最终搭建形成依托工程的BIM模型。以每道工序作业时间和资源消耗的模拟仿真结果为数据基础,采用FLEX+J2EE应用开发平台,使用Eclipse集成开发环境,结合MATLAB计算软件和SQL Server数据库,把工程造价计算和BIM模型应用于仿真系统,动态且直观地展示工程造价和工期的变化过程。
[Abstract]:The methods of determining project cost in the world can be divided into two kinds: project quota method and database method. The essence of these two methods is the same. If there is a big difference between the foundation of historical data and the condition of the project to be built, the engineering cost will be greatly deviated. A lot of problems have appeared in the practice of determining the project cost by the quota method in our country: first, the cost analysis of the new technology is relatively lagging behind and the renewal is slow; Second, the project cost determined by the traditional quota method is an invariable value, which runs counter to the viewpoint that the sustained expansion of the production scale in economics will lead to a downward trend in the long-term average cost; Third, the basis of quota establishment has been shaken by the reality that it is difficult to obtain first-hand information after the reform of market economy and management system. Some experts even claim that the project quota will disappear within 10 years. In view of this, the resource consumption of each process in the calculation method of engineering cost is uncertain, but traditional. Static quota method when calculating the cost but ignore this phenomenon, put forward the following research ideas: first of all, investigate the data of resource consumption in each working procedure. The distribution function of resource consumption is analyzed statistically. Then, based on the optimized network graph algorithm and Monte Carlo method, the total cost and duration of the project are simulated. The project cost under certain probability condition is determined. The relying engineering model is decomposed into independent foundation components, and Alternative 3D engine and 3DS Max 3D modeling software are used. Drawing the 3D model of components. Using database technology, attach the relevant engineering information to the corresponding components. Finally, the BIM model based on engineering is built. Based on the simulation results of operation time and resource consumption in each working procedure, FLEX J2EE application development platform is adopted. Using Eclipse integrated development environment, combined with MATLAB computing software and SQL Server database, the project cost calculation and BIM model are applied to the simulation system. Dynamic and intuitive display of the project cost and duration of the change process.
【学位授予单位】：中国铁道科学研究院
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：U445.1

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