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A Akcamete

An Approach to Capture Facility Maintenance and Repair Information to Store Change History

Abstract: During operations, changes happen to facilities frequently due to maintenance and repair (M&R)work, upgrades and renovations. Consequently, corresponding facility information needs to be updatedso as to provide reliable information to facility operators and managers. Moreover, the record offacility changes is necessary to understand the patterns of failures and to support proactivemaintenance decisions. Therefore, there is a need to enable storing of the information about suchchanges at the time that they occur. In current practice, facility documents are not frequently updatedand a complete history of changes is not available for supporting facility management decisions. Theauthors_ objective is to streamline the capturing of M&R information when these activities areperformed, so as to have a history of facility changes that can be used to understand how a building isdeteriorating and to support facility information updates. By observing M&R work records, weidentified the need for capturing different types of facility and change information for different typesof M&R work. Moreover, we observed the need for a spatial database to support pattern analysis byidentifying clusters that may not be found by using traditional databases. We developed a taxonomy ofM&R work that classifies various types of work on different types of facility components and listsassociated information modules that represent data required to be collected in the field. This approachenables a formal approach for capturing change information as a result of M&R work by providingcustomized templates for each type of work. The focus of this paper is to present the need forcustomization of information capture templates. The paper also gives a description of the approach offormally generating customized templates based on a taxonomy of M&R work and linking thecaptured history information with a facility information model. Enabling such a linkage will be thefirst step towards reasoning about the M&R history in order to analyze how a building deteriorates,identify problems in the building, and inform the users of facility information update needs.

Keywords: Facility maintenance, maintenance changes, change history, maintenance planning

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Series: w78:2011 (browse)
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M. Laasonen

Recognition of building parts from measured data

Abstract: Improvement of the information management of the existing building stock is aimed at more effective use of buildings and design of renovations. Available documentation on old buildings is often inadequate or its information content is out of date. The best way to acquire reliable input data is to measure buildings. Modern design related to the use and renovation of buildings is based on the modeling of buildings. To serve the needs of the end user, measurement methods should be linked to the building modeling technologies used in design. This arti-cle presents a computerized method for creating that link based on the recognition of building parts from measurement data. The main functions of data processing and a rough estimate of the usability of the outputted CAD model are given for the different levels. The four cases reviewed here are: 1) no recognition -> visual model, 2) surface recognition -> surface model, 3) individual building part recognition -> building part model 4) CAD object based recognition -> pa-rametric object model. The suitability of different models for different uses is discussed and the model types are linked to measurement methods. One application of the measuring program for recognizing parametric objects is presented.

Keywords: measurement of a building, CAD, building model, parametric object

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Series: w78:2007 (browse)
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T Hartmann

4D models to support safe planning of hospital renovations

Abstract: During hospital renovations, medical processes are, oftentimes, in progress at the same time as construction processes are. As a result, construction work may interfere with ongoing medical work. These conflicts often have undesirable effects on the vulnerable medical processes, in particular in relation to patient safety. Hence, during hospital renovation planning activities medical and construction experts have to work closely together to devise sound construction plans that align these two processes. To support such planning activities, this paper presents a method to model hospital renovation activities using 4D models that link a virtual representation of the hospital and several temporary objects, such as dust barriers, with planned construction sequences. We developed the method in an action research effort working closely together with architectural and medical practitioners on a hospital renovation project in the Netherlands. Throughout this action research we iteratively generated 4D models of the project and applied these models by supporting decision and communication tasks of practitioners in the ongoing project planning process. Next to the method itself, the paper also reports about some these first applications of the model that we were able to observe. These applications show that the method allows construction managers and medical specialists to develop 4D models that help to mutually evaluate the effects of a chosen construction sequence on ongoing medical processes.

Keywords: hospital renovation, safety planning, 4D modelling, action research, modelling process

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Full text: content.pdf (122,383 bytes) (available to registered users only)

Series: w78:2011 (browse)
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