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A decision support system for building refurbishment design

Abstract: "Refurbishment work in the EC currently accounts for more than one-third of the total construction output. This market is expected to grow stronger with the progressive ageing of buildings and the environment impetus to retain buildings. A further dimension is the need to adapt buildings for a greying population. There are important differences between refurbishment and new construction works. The existing building constraints the design solutions, construction technologies and work methods. Mechanisation, planning, and efficient organisation of refurbishment work is difficult, due to the small, labour intensive, and ad hoc, dynamic nature of the work. Also due to the relatively small scale of refurbishment projects, there have been no opportunities for standardisation and the applications of prefabrication and industrialisation are limited. Today, larger sized contractors are rapidly moving into the refurbishment market, in response to the shrinking new-build market and the higher technological demands of large scale refurbishment projects. The EC funded Brite Euram project 4670 is titled ‘Decision Support Systems for Building Refurbishment.’ This project has started in August 1998 and will finish in July 2001. Its objective is to develop a socio-technological-commercial framework and corresponding Decision Support Systems (DSSs) for housing refurbishment, to achieve: ? refurbishments which are more focused on user requirements; ? refurbishment designs which take into account the constraints of the existing building structure; ? increased incorporation of industrialised systems and components; ? organisational procedures and production technologies that recognise the unique nature of refurbishment work. The project is divided into three tasks. Task one aims at developing a DSS for the determination of the refurbishment demand and ballpark costs. Task two involves the development of a DSS for refurbishment design. Task three will result in a DSS for refurbishment process planning and control. This paper describes the approach followed for the ongoing development in task two, the DSS for refurbishment design. The main objectives of this task are to provide decision support at the project level. It will develop a database of layouts of representative existing housing estates and a database of preferred refurbishment layouts for these representative existing housing estates. Another database will be developed containing information on building systems and components that are relevant for the refurbishment process. Task two will establish a protocol for refurbishment design support. This protocol, which is implemented in a decision support information system, involves a number of steps that aid the user in selecting an appropriate housing layout and building systems and components that meet the user’s requirements. These steps involve the evaluation of a the user’s refurbishment demands and selection of a matching representative existing housing layout. Based on further dialog with the system, a preferred refurbishment layout is selected, which in turn is used as the basis for the selection of building systems and components that meet the performance requirements as stated by the user. The paper describes the methodology that is implemented in the system for retrieving performance requirements from the user, and the approaches for matching these to the stock of existing and preferred housing layouts available in the system’s database. The system is characterised by a flexible architecture of both the databases and the user interface, which results in a scalable system that allows the expansion of the databases with new graphical layouts and building systems and components, as well as the addition of new kinds of performance requirements. The system is implemented as an Internet application, which allows the database to be maintained centrally and facilitates world wide access to the system. The system’s implementation involves the combination of graphical and non-graphical data that can be queried and matched with only typical Internet browsing software installed at the client-side."

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Series: w78:2000 (browse)
Cluster: papers of the same cluster (result of machine made clusters)
Class: class.man-software (0.029035) class.environment (0.012122) class.impact (0.010657)
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Permission to reproduce these documents have been graciously provided by Icelandic Building Research Institute. The assistance of the editor, Mr. Gudni Gudnason, is gratefully appreciated


_. Jarský

Modelling of buildings and projects with utility assessment

Abstract: The paper describes the methodology of computer modelling of the building process of facilities and projects with utility assessment and the main principles of the integrated cost estimation, project management and quality assurance microcomputer based system developed recently. This expert system is based on quick modeling of the building process by use of typical construction technology network diagrams, which can be prepared in advance. The typical network diagrams can be modified according to the spatial conditions of a certain building and to the amount of construction works and materials. For utility assessment a vector of 10 main aspects (criteria) was created with a common measure unit and certain level of importance each. A database of construction processes was created including the aspects for utility assessment. Thanks to these features the model of the building process can be made about 50 times quicker than current project management systems and it can be used for bidding, project planning and management and utility assessment.

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Series: w78:2009 (browse)
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A Almarshad, I Motawa, S Ogunlana

INVESTIGATING KNOWLEDGE MANAGEMENT IN PUBLIC BUILDING MAINTENANCE IN KUWAIT

Abstract: Public Building Maintenance (BM) departments in Kuwait have the duty of maintaining buildings that vary in shape, type, size, complexity and purpose. The services provided by the departments extend from minor repair works to bespoke renovation and reconstruction projects making the process of maintenance complex. Knowledge Management (KM) is being implemented by organisations to improve their business performance. This paper is based on a study that investigated the current state of KM in the public part of the BM sector. Interviews were conducted to identify BM process, current KM activities and tools, barriers to knowledge sharing and perception to KM implementation. Findings of the study have assisted in modifying a proposed BM process based on procedures followed by the majority of interviewed departments, where knowledge capturing, organising, and retrieval activities can then be embedded in the process. The study revealed that there is lack of formal knowledge management techniques carried out within departments. Furthermore, there is no established communication links between branches of the same department resulting in lack of experiences and knowledge exchange between colleagues. Cultural/ethnic differences, fear of losing job, not knowing how to share knowledge and lack of time were the main barriers to knowledge sharing. However, the participants showed a positive attitude toward the introduction of a KM system with added activities and roles in the BM process related to KM.

Keywords: Building maintenance, Knowledge management, Kuwait, Public sector.

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Series: w78:2011 (browse)
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A Almohsen, Janaka Ruwanpura

Logistics Management in Construction Industry

Abstract: The construction industry is often slower to adopt new technologies than other industries. Yet the construction industry shall embrace these technologies sufficiently in order to keep up with advances in other trades. One of the most crucial elements in construction management is productivity. And the adopting of new technologies such as mobile-based application can increase construction project productivity in such areas as materials management, tool use time, and labour motivations. Most of these aspects have been thoroughly investigated in academia; however, logistics management and its contribution to construction productivity have been insufficiently investigated, especially with respect to the use of advanced technologies. In this paper, we propose to develop a new platform to utilize modern technologies in the construction industry. Hence, the main objective of this paper is to introduce mobile-based application technologies into construction industry that will improve construction productivity by enhancing logistics management practices. The use of this model will not only help increase productivity in the construction industry but also it will make this industry more competitive with other industries. In order to achieve the main the goal of the paper, different building construction sites have been selected from which to collect data using direct observation, interviews and questionnaires. In order to ensure a high quality result, all participants were selected based on their relationship to the subject being examined. By using the outcomes of the data analysis to identify a potential solution, a computerized logistical management model was developed to examine how to enhance construction productivity and to improve logistics management practices. Many positive opinions have been granted form different constriction experts. Facilitating the communications between such project participants as contactors, subcontractors and suppliers is another expected result. Also, the model would help in organizing the schedule for the use of such heavy equipment as cranes.

Keywords: logistics management, advanced mobile-based application technologies, construction materials and equipment.

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Series: w78:2011 (browse)
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A Ekholm, L Häggström

BUILDING CLASSIFICATION FOR BIM – RECONSIDERING THE FRAMEWORK

Abstract: The purpose of building classification systems is to provide the sector with agreed and standardised ter¬minology and semantics, e.g. in systems for technical specification, cost calculation, and exchange of information. There is a growing need to use classification systems in a BIM context. In inter¬¬national construction projects and international construction product trade there is a need both to translate between national classification systems and to develop common systems. The idea behind the inter¬¬national framework standard for building classification ISO 12006-2 is that national systems would be easier to compare if they adhere to the class definitions suggested in the standard. A study of two classification systems, the BSAB system in Sweden and the DBK system in Denmark, both within the framework and yet not compatible, has risen the idea of a deeper analysis of the theoretical basis for the ISO 12006-2 classification system to find a solution to this problem. The project has developed such a theoretical framework in order to clarify the relationship between classes representing parts of buildings in the ISO 12006-2 standard, specifically the Construction entity part, Element and Work result classes. This is specifically needed when the standard is used in the context of BIM, since building models include both specialization and compositional relations among information objects representing parts of buildings. The proposed theoretical framework is based on a systems view on the built environment that distinguishes constructions in four main compositional levels: construction entities, technical systems, building elements and components. Based on the theoretical framework developed in this project, possible new interpretations of the classification standard ISO 12006-2 are discussed.

Keywords: building classification, ISO 12006-2, BSAB, DBK

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Series: w78:2011 (browse)
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A Guerriero, S Kubicki, L Schwartz

Design and assessment of prospective mobile services for construction

Abstract: Mobile applications become more and more used in both private and professional activities.Innovation through mobile services specification and prototyping becomes a major trend inconstruction sector research. The project presented in this paper aims both at demonstrating theinterest of mobile technologies for assisting building construction coordination and to elicitate themost interesting and common requirements of construction practitioners for this type of application.Then the paper focuses on the method used for specifying basic requirements and the experimentalprotocol setup for assessing the developed prototype. The main outputs are a set of specifications and aprototype of mobile application as well as a method for defining experimental protocols in a context ofservice-based innovation. The prospects envisage considering context-aware mechanisms for therecommendation of mobile services to construction practitioners.

Keywords: Construction management, Mobile computing, Mobile service prototyping, Experiment protocol.

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Series: w78:2011 (browse)
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A Hore, F Cullen, R Montague, K Thomas

ADVANCING THE USE OF BIM THROUGH A GOVERNMENT FUNDED CONSTRUCTION INDUSTRY COMPETENCY CENTRE IN IRELAND

Abstract: The main aim of this paper is to develop the early case for a new Competence Centre dedicated to industry led research in the Irish construction industry. It incorporates the results of a survey carried out by the Construction IT Aliance (CITA) and also identifies similiar centres carrying out industry led research around the world. Results from the survey show a clear support for the establishment of such a centre in Ireland and, in particular, a strong interest in Building Information Modelling (BIM) as a immediate priority research area. BIM is having a profound effect worldwide on the construction industry. The development and adoption of BIM technologies is in parallel with other major changes relating to project procurement approaches, such as Integrated Project Delivery (IPD), and the general sustainability agenda. Although slow to take off in Ireland to-date, BIM is becoming extremely relevant in other countries, with over 50% adoption in the United States and an average of 36% in Europe. The authors argue that a government funded Competence Centre will facilitate the Irish construction industry in re-establishing itself, domestically and internationally as a competitive entity.

Keywords: Building Information Modelling, Industry, Competence Centre, Collaboration, Integrated Project Delivery, Sustainable Construction

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Series: w78:2011 (browse)
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A Kiviniemi, M Fischer & V Bazjanac

Integration of Multiple Product Models: IFC Model Servers as a Potential Solution

Abstract: The development of the Industry Foundation Classes (IFC) started from the vision of an integrated building product model which would cover all necessary information for buildings' whole lifecycle: requirements management, different design activities and construction and maintenance processes. Although the IFC model specification covers a substantial part of the required information its implementations into practical applications have shown several serious problems. One of the main problems is that the internal structures of the different software products do not support the information needs for the whole process. Thus, the idea of lossless, incremental data flow through the different applications used by the project participants has not come true. It is obvious that file based data exchange is not feasible solution, and some other solution for integrated project data model is necessary for the AEC industry. This paper discusses some viewpoints and potential solutions to the above problem.

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Series: w78:2005 (browse)
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Permission to reproduce these papers has been graciously provided by the Technische Universität Dresden.


A Yurchyshyna, M Léonard

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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A. Hryshchenko, K. Menze

A Comprehensive Vision on Cartography of EU And International Research Initiatives with RTD Gap Analysis in the Area of ICT for Energy Efficiency in Buildings

Abstract: This paper analyses the status of current researches in the area of Information and Communication Technologies (ICT) for the improvement of Energy Efficiency (EE) design and operation of buildings.Currently, research and technology developers focus on different domains and sub-domains in the area of EE, such as the integration of renewable energy sources and related monitoring, simulation, and management software. In order to improve harmonisation between different research and technology developments (RTD) including International and European research projects and scientific programs these activities need to be categorised and analysed. As a result of RTD gap analysis, the challenges, commonalities, deficits, and potentials for collaboration are identified contributing to the development of a “Scientific Road Map”. This paper focuses on development of a comprehensive vision on Cartography of recently completed, ongoing, and recently announced research European projects and International research initiatives for further implementation of its results in global vision of the REEB project [cf. http://www.ict-reeb.eu/index.html], and proposes a systematic categorization approach to identify gaps in the current research agenda in the area of IT for Energy in Buildings.Our RTD gap analysis is based on a qualitative categorization specifying common classification criteria.At the present, there are more than 270 projects worldwide were analysed, five Main Classification Categories (MCC) were developed.The proposed methodology should allow the identification of deficits of the related research activities within the specified (in T3.1, D3.1) categories.

Keywords: information and communication technologies, energy efficiency, research and developments, RTD, categorization, gap analysis

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Series: w78:2010 (browse)
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