标题: 整合BIM与QTO之数量计算以利施工管理
Integration of BIM and QTO for quantity estimation in assist of construction
作者: 徐霈元
Hsu, Pei-Yuan
王维志
Wang, Wei-Chih
土木工程系所
关键字: 数量计算;预算书编列;施工管理;BIM;PCCES;BIM;budget statement compliation;constraction management;PCCES;quantity estimation
公开日期: 2012
摘要: 本研究订定了一套利用 BIM 产生我国格式预算书的标准流程,此流程所运用的工
具是一款在全世界工程业有高度通用性的 BIM 软体 Autodesk Revit Architecture 与同公
司的工程数量计算的软体 Quantity Takeoff (QTO)。本研究的结果可使任何有接触过 Revit
的使用者,都可以快速且精确地为建案得出其结构与装潢工项的数量,并产生一份完整
的我国格式预算书。
本研究将我国工程会所开发的公共工程经费估价系统(PCCES)内建资料库中的各种
结构工项资讯导入到 Revit 之中,并利用简明的选单模式大幅地提升资讯与模型结合的
效率与减少因人工打字所产生的错误。
为了计算装潢工项的使用量,本研究在建筑模性内定义了非实体的空间元件,并以
选单将各种装潢工项资讯挂载于该元件中,如此即可快速且方便的为各房间进行“装
潢”。
在本研究中也明确的定义了 Revit 建筑模型内各元件建置的细致度与资讯的详实度
才能使 QTO 的数量计算结果达到所需之精确度。另外为了能计算出一个建案中各种结
构工项的总使用量,本研究也分别为它们建立了可直接放入 QTO 的通用计算公式。经
由 QTO 运算后输出的结果即可汇入 PCCES 系统中为各工项加入单价,便可以得到一份
完整的我国格式预算书了。
对于结构体中最复杂的钢筋,本研究提出了将平面图内的钢筋资讯化的概念,并拟
定了填入资讯与计算数量的具体作法。通过验证,证实此一作法与实际建置立体钢筋模
型后进行计算的结果并没有差异,但前者更为简便。
本研究也将上述的成果运用于施工管理。为了能帮助填写施工日报,我们建立了一
套标准流程,包括针对结构与装潢各元件,勘查人员每日应于工地现场观察的项目,与
利用 Revit 和 QTO 进行登录与计算的方法。运用此一流程便可得出每一日各工项的使用
数量。将每日的计算结果逐日加总,即可得出累积使用量与金额,进而产生工料累积的
S-curve。
Revit Architecture is a BIM software by Autodesk, and is widely used in the field of civil engineering
around the world. This study establishes a standard process, using Revit and Quantity Takeoff (QTO,
another software by Autodesk), to create a budget statement that is in accord with the format of our country.
Our process enables any users who have ever accessed Revit to rapidly and accurately make an estimate
about the quantities of structural and decoration pay items used in a construction case, and produce a
complete budget statement.
This study for the first time incorporate the information of structural pay items in the database of Public
Construction Cost Estimate System (PCCES) into Revit Architecture 2013, and, by means of clearly
ordered pop-up menus, the efficiency in combining the elements in a model and their corresponding
information is greatly enhanced, and the error due to typing is eliminated.
To rapidly and accurately determine the quantity of decoration pay items used, this study defines a
non-substance space element out of a building model, and uses pull-down menus to load the information of
various decoration pay items onto these elements. In this way, the room can be decorated with ease.
This study also define the level of detail in element creation and information attachment for constructing
a building model to achieve the accuracy required in quantity estimation. In addition, equations for
calculating the quantities of various structural pay items have been formulated to be used in QTO. The
output of QTO is readily transferred into PCCES system for updating the unit price, and a complete budget
statement is generated.
The network of rebar is the most complicate part in a building structure, we propose that the rebars in the
floor plan should be informatized. A procedure for incorporating information and calculating is established.
The method is proved to be equally valid as drawing 3D rebar model and then estimating its quantity, but
the former is simpler and more convenient.
The results of our studies also find applications in construction management. To help writing the daily
report, a standard process is established, which includes the information that should be collected by
investigators at construction site, and the methods of booking and calculation by Revit and QTO to find out
the daily quantities used in structural and decoration pay items. The daily accumulation of these results then
can be used in S-curve generation.
URI: http://140.113.39.130/cdrfb3/record/nctu/#GT070051293
http://hdl.handle.net/11536/72091
显示于类别:Thesis