基于IFC标准的多构件重叠算量扣减研究
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摘要
工程量的准确计算是建筑生命全周期成本控制的基础。传统的工程算量方式自动化程度较低、过程复杂且误差较大,严重影响造价管理工作的效率。BIM技术势必引发造价行业的变革,而IFC标准是国际公认的开放性最好的BIM数据交换标准。本文通过对IFC数据模型中算量相关信息的拆分和解析,提出"两级碰撞排查算法"。该算法利用三维模型的布尔运算,按照清单规则对多重叠构件进行准确的扣减计算,解决了同一模型在不同软件或不同建模路径下普遍存在的工程量计算不一致问题。此算法解决了现阶段算量方式存在的BIM数据难以共享的问题,表明IFC标准的推广和发展可以为三维算量提供新的思路。
Accurate quantity take-off is the basis of cost control during the life cycle of a building.However,the traditional quantity take-off method is of low degree of automation and complicated with large error,which seriously affects the efficiency of cost management. BIM technology is promising to trigger changes in the cost industry,and IFC is widely recognized as the best open BIM data exchange standard. Herein,a "two-level collision detection algorithm"is proposed by parsing the quantity-related information in the IFC data model. The algorithm uses Boolean operation of the three-dimensional model to conduct accurate deduction calculations on multi-overlapping components according to the inventory rule,solving the inconsistency problem of engineering quantity calculation when using different software or different modeling paths are used in the same model. This algorithm succeeds to make BIM data shareable,indicating that the promotion and development of IFC can provide a new strategy for three-dimensional calculations.
Accurate quantity take-off is the basis of cost control during the life cycle of a building.However,the traditional quantity take-off method is of low degree of automation and complicated with large error,which seriously affects the efficiency of cost management. BIM technology is promising to trigger changes in the cost industry,and IFC is widely recognized as the best open BIM data exchange standard. Herein,a "two-level collision detection algorithm"is proposed by parsing the quantity-related information in the IFC data model. The algorithm uses Boolean operation of the three-dimensional model to conduct accurate deduction calculations on multi-overlapping components according to the inventory rule,solving the inconsistency problem of engineering quantity calculation when using different software or different modeling paths are used in the same model. This algorithm succeeds to make BIM data shareable,indicating that the promotion and development of IFC can provide a new strategy for three-dimensional calculations.
引文
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[2]袁荣丽,朱记伟,杨党锋,等.基于BIM技术的建筑工程三维算量应用研究[J].工程管理学报,2017,31(2):106-110.
[3]王英杰. IPD模式下基于BIM的施工成本管理研究[D].重庆:重庆大学,2015.
[4]林韩涵,周红波,何溪.基于BIM设计软件的工程量计算实现方法研究[J].建筑经济,2015,36(4):59-62.
[5]马智亮,娄喆. IFC标准在我国建筑工程成本预算中应用的基本问题探讨[J].土木建筑工程信息技术,2009,1(2):7-14.
[6] Xu S,Liu K,Tang L C M. Cost Estimation in Building Information Model[C]//Proceedings of International Conference on Construction&Real Estate Management. ASCE,2013:555-566.
[7]王勇,张建平,李久林.基于IFC的建筑结构施工图设计信息模型描述[J].土木建筑工程信息技术,2014,6(4):30-35.
[8] Lee S H,Park S I,Park K Y. IFC property set-based approach for generating semantic information of steel box girder bridge components[J]. Journal of the Korean Society of Civil Engineers,2014,34(2):687-697.
[9] Park S H,Park H J,Koo K J. Schematic estimate framework of finishing works based on IFC-BIM knowledge[J]. Journal of the Korea Academia-Industrial Cooperation Society,2015,16(6):4176-4184.
[10] Akanbi T,Zhang J. Automated Wood Construction Cost Estimation[C]//Proceedings of ASCE International Workshop on Computing in Civil Engineering2017. ASCE,2017:141-148.
[11]张修德.基于BIM技术的建筑工程预算软件研制[D].北京:清华大学,2011.
[12]檀凯兵.基于BIM的工程计价数据结构及计价模型研究[D].北京:北京交通大学,2016.
[13]刘畅.基于BIM的房建工程的多层级工程量清单构建研究[D].北京:北京交通大学,2017.
[14]匡思羽,张家春,邓雪原.基于IFC标准的典型梁柱构件工程量自动计算方法研究[J].图学学报,2017,38(3):431-438.
[15]吴晓波.建筑信息模型(BIM)与工程项目造价知识数据的关联及应用研究[D].深圳:深圳大学,2016.
[16] GB 50500-2013,建设工程工程量清单计价规范[S].
[17]王汝传,黄海平,林巧民,等.计算机图形学教程(第3版)[M].北京:人民邮电出版社,2014.
[18]安培,余地华,艾心荧,等.基于BIM的三维算量在超高层建筑项目中的研究与应用[J].施工技术,2015,44(23):15-18.