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A Y Chen, T Huang

BIM-Enabled Decision Making for In-Building Rescue Missions

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Series: w78:2014 (browse)
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A Yurchyshyna, M Lonard

Making a smudge on collective (un)conscious: designing collaborative platforms for construction

Abstract: Collaboration and collaborative environments have been playing an increasingly important role in theconstruction domain. Designing and process modeling, knowledge management and dissemination,communities of practice this is just an initial list of the building-related activities that benefit fromcollaboration- and services approaches characterizing the construction industry. In this paper, we discuss the phenomenon of collaboration in construction, study the existingcollaborative platforms that are used (or might be applicable) for different building-related activitiesand identify the main challenges that are currently not addressed in the current researches. Wefurthermore underline the role of services-oriented technologies for modeling industry- and businessrelatedprocesses,andshowhowtheyhavebeendefactoimplementedfortheconstructionindustry.Despitea largenumberofdifferentfit-for-purposecollaborativeplatformsforconstruction,weneverthelessunderlinethenecessityofa semanticallyrichcollaborativeenvironmentforheterogeneousconstructionexpertsthatwouldallowthemtokeeptheirownterminologyandworkingpractices,buttoacquireasharedunderstandingofacommontaskwithoutlosingitsintegrity.Inordertodoso,weintroduceourservices-basedapproachforactionalizingthe expert knowledgeand developing an information kernel of a discussed task. This approach forms a theoreticalfoundation for developing a collaborative platform, the Cross-Pollination Space, the semantics ofwhich is dynamically modeled by ontologies and the related interactions are enabled by services. Weshow how this framework allows enriching the collaborative environment during its functioning andsupports expert collaboration without imposing an artificial platform-specific terminology and/orcollaboration patterns.Finally, we canvas the ongoing and future works related to this research and discuss the particularitiesof their contextualization for the construction industry.

Keywords: collaboration in construction, shared semantics, expert knowledge, collaborative platforms, service approach in construction

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Series: w78:2011 (browse)
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Alain Zarli, Eric Pascual, Daniel Cheung

Information and Communication Technology for Intelligent and Integrated Controls in Buildings: Current Developments and Future Research

Abstract: A common and acknowledged vision today is the one that, in the future, buildings, along with their components, equipments, and their environment will communicate and be able to provide information on their status ubiquitously. This real-time available information will be interoperable via common protocols for holistic automation & control. The whole building will be supervised by intelligent systems, able to combine information from all connected devices, from the Internet or from energy service providers in order to efficiently control HVAC (heating & cooling), lighting, and hot water systems along with energy production, storage and consumption devices inside the building, taking into account the users' needs and wishes. In such a context, ICT is recognised as key for empowering people in the (built) universe in which they live, with smart e-metering and new smart e-devices – as well as becoming fully pervasive in the future optimization of energy in the built environment - where “Energy-efficient smart buildings” are to be buildings which contain systems that manage information for an optimal operation of building energy flows over the whole building lifecycle.In such a context, CSTB has developed an open framework for data collection and processing, to be installed in any built environment. It supports networked heterogeneous sensors and actuators (with appropriate communication protocols technology), allows assembling various “business” functions (with easy evolution and extension capability thanks to a concept of service composition and event-driven management between modules), can accommodate any hardware platform constraint (memory, computing power), and can be executed in any environments supporting a Java SE implementation. The framework is itself based on an OSGi platform. The notion of “sensor” is to be considered in a comprehensive way: physical sensor (analogic or logic), complex sub-system or meta-sensor (e.g. Agilent data acquisition system or alike), or even external services (e.g. getting weather data via the Internet). Fields of applications are energy-efficiency in the built environment, but also Ambient-Assisted Living (AAL), internal air quality assessment, collection of data related to inhabitants behaviours, etc..The REEB coordination action (European strategic research roadmap to ICT enabled Energy-Efficiency in Buildings and construction), as a European R&D technology roadmap initiative (achieved in the context of an EC-funded Coordinated Action - http://www.ict-reeb.eu) has identified ICT contributions to the energy efficiency of buildings mainly via improvement (and corresponding RTD) in integrated design (and indeed ICT tools for Energy-Efficient design and production management), integrated and intelligent control, user awareness and decision support to various stakeholders throughout the whole life of buildings, energy management and trading, and integration technologies. As far as the integrated / intelligent control field is concerned, REEB has fundamentally identified the following areas for future investigation:• automation & control: system concepts, intelligent HVAC, smart lighting, ICT for micro-generation & storage systems, predictive control;• monitoring: instrumentation: smart metering;• quality of service: improved diagnostics, secure communications;• wireless sensor networks: hardware, operating systems, network design.The paper will first introduce to expectations, requirements and potential future scenarios for ICT to support integrated and optimised control in future so-called smart buildings. It will then introduce to the current trend of developments at CSTB in this area, and will present the CSTBox as a tool federating and/or complementing functions (potentially relying on already installed systems) in the built environment. After a short presentation of the REEB project, the paper will follow up with exhibiting the outcome of the REEB project in terms of roadmapping RTD activities in this technological field, also providing with a first insight of their potential impact in the future.Acknowledgement: the authors wish to thank the European Commission (DG INFSO) for its financial support to the REEB co-ordinated action. Moreover, the authors are also grateful to the REEB Consortium partners, namely ARUP, ACCIONA, CEA, LABEIN, TUD, UCC & VTT.

Keywords: Energy-efficient buildings, Intelligent and Integrated Control, REEB project, CSTBox framework, Data collection and storage

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Series: w78:2010 (browse)
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Amor R, Betts M, Coetzee G, Sexton M

Information Technology for Construction: Recent Work and Future Directions

Abstract: Advancing the application of information technology in construction is a major international research and innovation endeavour of concern to scientific establishments and industry. A significant focal point for this research, in terms of its dissemination and the derivation of a shared research agenda, has been the working commission concerned with IT for construction within the International Council for Innovation and Research in Construction (CIB). Working commission 78 of CIB has been active for about 20 years in holding annual meetings of leading scholars in the field. These annual meetings have allowed the principal research activities from around the world to be presented to expert fora and documented in a series of annual proceedings. More recently, some of the more complete research projects have been reported in an on-line electronic journal published in association with the working commission. The meetings have typically allowed debates and discussion to take place regarding the state of progress with key research themes, the emergence of new research themes, and a vision of construction activities in the future to which ongoing research could relate. This paper seeks to capture some of the overall experiences from the activities of this working commission by reviewing the key research issues that have been addressed in recently reported work and seeking to elicit a vision of future IT-enabled construction projects that might inform future research. It reports on an overview of the scope, current approaches and future research agenda that has arisen from consideration of the papers presented, and discussion that took place, at its most recent meetings in South Africa in 2001 and Denmark in 2002.

Keywords: Information Technology, Construction, Research Agenda, Vision.

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Full text: http://www.itcon.org/2002/16 (available to registered users only)

Series: itcon:2002 (browse)
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Andresen J L

How to select an IT evaluation method - in the context of construction

Abstract: In a number of surveys (both national and international) it has been highlighted that companies from the construction industry have difficulties with evaluating IT investments (Andresen 1999;CICA and CIRIA 1995). The reasons for this are many but one of the major ones is the poor adoption of IT evaluation methods. This paper focuses on how companies can choose between the many available IT evaluation methods by presenting a framework for how to choose a matching method. The primary objective of the paper is to present the findings of a completed Ph.D. project, but also importantly to discuss why this topic is relevant for companies in the construction industry by highlighting the benefits of increased knowledge of the value of companies' IT investments. The framework has been developed on the basis of both theoretical and empirical data collection and analysis of the available methods, a questionnaire survey and five case studies. Firstly, 82 IT evaluation methods have been identified in a literature review (and the list is not complete), from which a number of characteristics have been derived, and this has enabled a categorisation of the identified methods. Secondly, a national survey was completed investigating the sophistication of the Danish companies' IT evaluation practice. This was done in order to establish an overview of current IT evaluation practice. Thirdly, five case studies were completed in which four different methods were tested according to their usefulness in real-life IT evaluations. The presented framework consists of (a) 21 parameters (which can be used to describe the characteristics of different IT evaluation scenarios), (b) a weighting system (allowing putting a higher emphasis on certain parameters) and (c) a set of procedures for identifying a matching IT evaluation method. The framework's output has been validated by comparing these with the experience gained in the case studies.

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Full text: content.pdf (520,674 bytes) (available to registered users only)

Series: w78:2002 (browse)
Cluster: papers of the same cluster (result of machine made clusters)
Class: class.strategies (0.021078) class.roadmaps (0.020571) class.processing (0.007171)
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Permission to reproduce these documents have been graciously provided by the Aarhus School of Architecture, Denmark. The assistnace of the editor, Prof. Kristian Agger, is gratefully aprecciated.


Baha Mirghani, Michael Tryby, Ranji Ranjithan, and Kumar Mahinthakumar

A Grid-Enabled Simulation-Optimization Approach For Solving Groundwater Characterization Problems

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Series: w78:2006 (browse)
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Boshoff N, Coetzee G

The use of electronic commerce in the materials procurement in SA construction industry

Abstract: South Africa is facing the challenge of providing housing and infrastructure to millions of its residents. The improvement of the construction process to enable and improve delivery of such scale, is of paramount importance to the industry. The paper focuses on the use of Internet enabled electronic commerce in the procurement of building materials. The CSIR in South Africa is developing a product "Eze-build" in collaboration with the construction industry, IT companies and the major banks. Eze-build consists of a core building product library, tender management and bill of materials systems integrated with an Internet enabled ordering and payment gateway. Eze-build gives contracting companies access to building materials suppliers via the Internet for the ordering and payment of building materials from a pre-compiled bill of materials.Eze-build provides materials suppliers, contractors and construction managers an easy to use tool that improves the overall management of materials procurement significantly. It also improve site processes since the procurement of materials can now be pre-scheduled and delivery of materials can occur on a just in time basis reducing materials storage and wastage significantly. Specific items addressed in the paper includes: A process analysis of Eze-build and the related changes in the construction management process. 1. The technologies used to implement Eze-build. 2. A brief description of the project including: * the merging of these diverse technologies to develop an integrated materials procurement solution for the construction industry; and * some of the difficulties that are encountered during the roll out of such a integrated system in the construction industry.

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Full text: content.pdf (51,611 bytes) (available to registered users only)

Series: w78:1998 (browse)
Cluster: papers of the same cluster (result of machine made clusters)
Class: class.commerce (0.029106) class.store (0.024954) class.communication (0.023370)
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Permission to reproduce these papers has been graciously provided by Royal Institute of Technology, Stockholm, Sweden. The assistance of the editors, Prof. Bo-Christer Bjrk and Dr. Adina Jgbeck, is gratefully appreciated.


C-W Liu, S-C Kang

A Video-Enabled Dynamic Site Planner

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Series: w78:2014 (browse)
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Christer Finne

Perceived customer value in construction information services

Abstract: The information needed to design, construct and manage a building is nowadays mainly produced, stored and made available in digital form. Information is produced partly in the design process itself. Design and procurement documents refer only to information produced elsewhere as external printed matter or databases (for example, describ-ing building products). An important channel for such external information is provided by specialized information service providers. In order to meet competition from companies homepages, search machines, internet start-up companies etc, established info-mediaries need to rethink their services as well as their business processes. A key issue is achieving a deep understand-ing of how customers perceive the value of these services and products compared to those of new competition enabled by the internet. A study of new business patterns and networks provides the empirical support for the concepts exam-ined in this paper. Traditionally, value is regarded as something inherent in the product; and which is handed over to the customer. More recently, research argues that value cannot be pre-produced. Value is co-produced by the customer, partly as a result of interactions between the customer and the supplier or the service provider. For services, value is, according to this view, produced and consumed simultaneously. Using this theoretical framework as a basis, the conclusions of the study are that it is not enough for construction infomediaries to produce just digitised versions of their traditional products, e.g. printed standards, and product sheets. They also need to gain a thorough understanding of their customers' busi-ness processes and, instead of producing products (or services), become facilitators of value creation for customers.

Keywords: construction infomediaries, customer value, information service providers, product information

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Series: w78:2007 (browse)
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Christopher Raghubar, Nima Shahbazi, Brandon Bortoluzzi, Aijun An and J.J. McArthur

Integrating Visual Analytics and Machine Learning Into BIM-Enabled Facilities Management.

Abstract: Building Information Modelling is becoming increasingly used for Asset Information Management in Facility Operations, where semantic and relational information are of primary importance. "Big Data" analytics tools provide new opportunities within this domain to classify and synthesize data, integrate it with the Computer-Aided Facilities Management system, and develop predictive models to assign priority and resources to address issues arising. The resulting information integrated into building information models provides a powerful tool for facilities management teams to prioritize and streamline operations and maintenance tasks.This paper presents the development, comparison, and application of two supervised machine learning models to classify and evaluate maintenance requests generated both from within the maintenance team and occupant complaints. Three algorithms: Term Frequency (TF), Term Frequency-Inverse Category Frequency (TF-ICF), and Random Forest are used to analyse the text of the maintenance request description and assign problem types to each. Approximately 150,000 historical maintenance requests were used for model development and the models have overall prediction accuracies of 69%, 70%, and 90% for problem type prediction, respectively.

Keywords: Machine Learning, Building Information Modelling, Visual Analytics, Facility Management, Predictive Models, Big Data

DOI: https://doi.org/10.24928/JC3-2017/0143

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