Abstract
Building Information Modelling (BIM) models are relational and parametric in nature, and 5D BIM is where model objects include specification data and other properties which can be directly used for pricing construction work. There is huge potential for its use by quantity surveyors (QSs) for such tasks as quantity take-offs, estimation and cost management, in a collaborative project environment. Perceptions regarding the benefits of, and barriers to, the implementation of 5D BIM by quantity surveyors in Auckland are presented, based on structured interviews with 8 QSs. Results suggest that 5D BIM may provide advantages over traditional forms of quantity surveying in Auckland by increasing efficiency, improving visualization of construction details, and earlier risk identification. However there are perceived barriers to 5D BIM implementation within the construction industry: a lack of software compatibility; prohibitive set-up costs; a lack of protocols for coding objects within building information models; lack of an electronic standard for coding BIM software, and the lack of integrated models, which are an essential pre-requisite for full inter-operability, and hence collaborative working, in the industry. Further research is recommended, to find solutions to overcome these barriers to inter-operability between 3D and 5D BIM, in order to facilitate the cost modelling process.
Highlights
Building information modelling [or management] (BIM) is a digital representation of a building’s geometric and non-geometric data, and is used as a reliable, shared knowledge resource to make decisions on a facility throughout its lifecycle (NBIMS 2010).BIM has been in use internationally for several years, and its use continues to grow
Benefits of 5th dimension (5D) BIM Participants’ level of agreement (1=Strongly Disagree, to 5=Strongly Agree) with statements relating to their perceptions regarding the benefits of 5D BIM implementation for quantity surveying in New Zealand are shown in Table 2, and the findings discussed below
Barriers to 5D BIM Implementation Participants’ level of agreement (1=Strongly Disagree to 5=Strongly Agree) with statements relating to their perceptions regarding the barriers to 5D BIM implementation for quantity surveying in New Zealand are shown below in Table 3, and the findings are discussed
Summary
Building information modelling [or management] (BIM) is a digital representation of a building’s geometric and non-geometric data, and is used as a reliable, shared knowledge resource to make decisions on a facility throughout its lifecycle (NBIMS 2010). BIM has been in use internationally for several years, and its use continues to grow. A survey covering BIM adoption rates across North America found that 67% of engineers, 70% of architects, and 74% of contractors used BIM (McGraw-Hill Construction 2012). New Zealand’s only national BIM survey recently found that the proportion of BIM users increased from 34 % [2012] to 57 % [2013], with a year-on-year increase in overall BIM awareness in the construction industry, from 88 % [2012] to 98 % [2013] (Masterspec 2012; 2013)
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