Song, M H and Fischer, M (2020) Generating a daily bill of materials at level of development 400 using the smallest workface boundary. Journal of Construction Engineering and Management, 146(5): 04020035, ISSN 0733-9364
Abstract
Observations and sample tests at five construction sites showed that the time required for generating a daily bill of materials (BOM) is within the range of 12-68 min. However, 20 foremen interviewed at the sites stated that, in reality, they cannot spend more than 2-3 min per day generating a daily BOM, although this information would be helpful for field control. To meet this time requirement, this study uses a building information model at level of development (LOD) 400, i.e., the fabrication level, and a concept referred to as the smallest workface boundary (SWFB), which is the boundary that encapsulates a set of LOD400 objects in the smallest workable unit to overcome their high granularity. This research also presents four types of rules to automate the generation of SWFBs to the extent possible from LOD400 objects. The SWFB concept and rules are incorporated into a protype to aid a foreman in quickly generating a daily BOM with LOD400 objects. A methodology that a foreman can use with the prototype is also provided. For validation, field experiments were conducted at sites in Abu Dhabi, Stockholm, and Lima. With the latest version of the prototype, the time requirement (i.e., not requiring more than 2-3 min per day) was met with an average of 59 s.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | building information modeling; daily bill of materials; daily bill of quantities; daily work order; level of development; smallest workface boundary |
| Index terms: | bills of quantities, fabrication, building information modelling, methodology, validation, Stockholm, level of development, prototype, construction site, experiment |
| Subjects: | professional development, Geography, research methods, design practice, manufacturing engineering, information systems, data collection methods, financial and cost management, modelling and simulation, work location |
| Topics: | Research Practice, Geographical Context, Information Management, Engineering Principles, Cost Management, Design Practice, Digital Applications, Site Management |
| Descriptive scope: | 4 PCTE |
N.B. Descriptive scope is a count of how many of the five facets of empirical research are indicated by the words used in title, abstract and keywords. It is not intended as a judgement on the research; merely a count of the kind of word we would expect to indicate Phenomenon, Concepts, Theoretical framing, Empirical techniques, Analytical techniques. If all five are present, then a code of “5 PCTEA” will indicate this. If you feel the coding for this record is questionable, we welcome discussion around the terms we matched or the way we categorized them. The facet you would expect may not be coded, or a facet may be coded inappropriately. This can also bear on a larger question, of which facets should be treated as defining in construction management research. Please get in touch, and we will look at it. More details here