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Jansson, Gustav, et al.
(author)
Requirements transformation in construction design
2010
In: CIB W78 27th International Conference on Applications of IT in the AEC Industry & Accelerating BIM Research Workshop.
Conference paper (other academic/artistic) abstract
Transformation of performance requirements to technical solutions and production parameters is central for architects and engineers in the design process. Construction industry suffers from low efficiency in design, and the information flow creating bottlenecks for the production process. Tracing and managing information through design process needs standards both for requirements and Building Information Models in a life cycle perspective. Structuring functional requirements is of great interest for the construction industry and especially for companies developing industrialised housing system that often have control over the whole manufacturing process. The delivery of a new low-carbon economy in Europe puts pressure on the construction industry to reduce the energy consumption for buildings. Therefore is one national standard for energy requirements tested on a building system and evaluated in an Information and Communication Technology-environment (ICT) that supports the design process for industrialised construction. The result of the research shows that the transformation of requirements to technical solutions needs functionality that supports the design process by using standards for requirements. A rigid building system based on well defined design tasks together with a technical platform, both for spaces and physical elements, work as a backbone for development of ICT support systems. Product Life Cycle Support (PLCS), as a standard that enables flexibility in categorisation of information through the construction design.
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Norberg, Håkan, et al.
(author)
Byggsynkronisering
2009
Reports (other academic/artistic) abstract
Rapporten redovisar de resultat som hittills framkommit i ett ERABUILD-projekt där avsikten är att skapa industrialiserade processer för definition, utformning, byggande och fastighetsförvaltning som väsentligt kan effektivisera byggande och förvaltning av fastigheter över hela livscykeln. Målet med den svenska delen är att definiera en framtida industrialiserad byggprocess som är stödd av ett synkroniserat flöde av information, resurser, material och aktiviteter till byggplatsens olika produktionsställen. Hypotesen är att platsknutna planeringsmetoderna som Line of Balance och 4D tillsammans med en robust produktionsstyrningsmetod kan skapa arbetsscheman som kan genomföras med tillräcklig förutsägbarhet. Detta är nödvändigt för att kunna skapa bra och effektiva försörjningskedjor. Mobila verksamhetssystem är en lämplig teknologi för att kunna understödja ett sådant synkroniserat byggande. För att säkerställa en öppen tillgång till den gemensamma bygginformationsmiljön (VBE) kommer tekniken med standardiserade Web Services att testas för att koppla ihop applikationer som kan stödja ett synkroniserat byggande.I Etapp I av projektet har produktionsprocessen för en typisk byggplats kartlagts där informations- och materialflöden samt användning av gemensamma resurser nödvändiga för genomförandet av olika produktionsaktiviteter definierats för att utveckla en byggplatsanpassad logistikmodell. Applikationer och metoder för planering och styrning samt strategier och mått för byggplatsens försörjningskedjor av information, material och komponenter har identifierats. I Etapp II, har valda delar av modellen att jämförts och utvärderas mot traditionella metoder i ett pågående byggprojekt, (NCC:s projekt kvarteret Rådjuret i Luleå samt Solberga Torg). Framtagna metoder med stöd av valda applikationer har demonstreras i en avgränsad del av projektet. Idag implementeras 3D projektering i stor skala i den svenska byggbranschen. Detta har lett till bättre samordning mellan olika discipliner och mindre antal kollisioner som måste lösas på plats. I nästa steg kommer en övergång till bygginformationsmodeller att ske (BIM) där informationen kommer att integreras mellan olika aktörer och skeenden i byggprocessen. En sådant naturligt steg är att integrera projektering och produktion där stora värden kan sparas om BIM modellen kan användas för inköp, planering och genomförandet i produktionsprocessen. En demonstrationsmiljö har byggts upp med en modellserver, en BIM Collaboration Hub, för att hantera IFC-filer som definierar byggnaden och andra filtyper som används i olika affärsprocesser. De olika bygg- och installationsdelarna kan läsas in med sina versioner från CAD-system i IFC-formatet och därefter knytas till annan information som t ex krav och tidplaneaktiviteter. Arkitekturen ger en flexibel lösning där företag kan samverka med hjälp av olika överföringsmetoder - filöverföring, tjänster som anropas och inmatning via ett grafiskt användargränssnitt. Den processmodell som utvecklats i inVBE projektet och som utgör viktig del i Håkan Norbergs lic-avhandling (se referenslistan) skapar bättre förutsättningar för beredning/koordinering, synkronisering, rapportering och uppföljning av produktionen på byggarbetsplatserna. Vid projektets slutpresentation var intresset stort från flera byggföretag att prova och utvärdera det nya arbetssättet och de nya verksamhetsstödjande applikationerna. Ambitionen är därför att tillsammans med intresserat byggföretag med lämpligt byggprojekt ansöka om SBUF medel för att genom fältprov utvärdera om förväntade kvalitets- och produktivitetsförbättringar erhålls i verkligheten.
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Hallberg, Daniel, et al.
(author)
On the use of open bim and 4D visualisation in a predictive life cycle management system for construction works
2011
In: Electronic Journal of Information Technology in Construction. - 1403-6835 .- 1874-4753. ; 16, s. 445-466
Journal article (peer-reviewed) abstract
Construction works are in periodical need of performance upgrade such as maintenance, repair and rehabilitation (MR&R). Facility managers are responsible to fulfil this need during the whole life cycle of the construction works in a manner that maximises the economical profit, minimises the environmental impact and keeps the risk of failure at a low level. A prerequisite for efficient facility management (FM) is long-term planning of MR&R actions. This requires management of a large amount of information, a process that includes gathering, storing, processing and presentation of data. With the development of open Building Information Models (open BIM) and standardisation of Industry Foundation Classes (IFC) new possibilities of efficient management of FM information have emerged. Due to its parametric and object-oriented approach, the open BIM-concept rationalises the information management and makes it more cost effective. This paper discusses how open BIM, with the aid of IFC, and Product Life Cycle Support (PLCS) may facilitate the implementation of a predictive Life cycle Management System (LMS) and by that improve the feasibility for adopting long-term and dynamic maintenance strategy in the FM process. A case study on the use of a commercial BIM-based design tool as information repository and media to present life cycle information within the context of the LMS concept on a hospital building is also presented. The case study shows that the build-up of the information becomes simpler, more clear and efficient compared to a traditional database solution, as it is done with parametric objects. However, the basic BIM can not serve for all LMS functions. There is still need for development of a BIM integrated LMS solution that may support prediction of life cycle performance and maintenance needs. Such a solution needs to be communicative to any open BIM software and thus has to be built upon open standards for exchange of building information, e.g. the IFC standard, and life cycle oriented standards like PLCS. Additional focus is put on 4D simulation and visualisation. Simulation and visualisation of long-term performance of buildings is of crucial importance when improving the feasibility for adopting a long-term and dynamic maintenance strategy in the FM process. © 2011 The authors.
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Tarandi, Väino, 1951-, et al.
(author)
D20 Open Web-based ICT Platform : InPro Publications
2010
Reports (other academic/artistic) abstract
Requirements The final objective of the NMP-project InPro is to develop an „Open Information Environ-ment (OIE)‟ supporting the Early Design Phase for the construction life cycle of a Build-ing. Work Package 4 – „Open ICT Platform‟, led by TNO, provided the technical ICT infrastruc-ture for the integration of the „early design‟ and „project management‟ software applica-tions (and their associated structured/unstructured information) determined in Work Package 3. One outcome is the definition of the „Open ICT Platform‟ (OIP). Work Package 4 - Task T4.2 – „Open Standards for Interoperability between Applications in Early Design‟, led by AEC3, provided the short term and long term requirements for the Open ICT Platform. The main outcome of task T4.2, the deliverable D6, specifies the Open ICT Platform ac-cording to the OIP requirements described in the deliverable D1 [Nummelin 2007] of the preceding task T4.1 and the seven key processes described in the deliverable D5 of task T2.1 [Outters & Verhofstad 2007]. The strong focus on the key processes has been iden-tified as an important and necessary addition to the original scope of work. Solution The Open web-based ICT Platform – the BIM Collaboration Hub – is available for the in-dustry as a test environment, as a "sandbox", for the users to play with. It is "reset" fre-quently, to enable repetition of tests etc. This sandbox will then also contain the parts/extensions for InPro. The Open web-based ICT platform is to be seen as a technical solution how to map the information available in the different applications, key processes and also the demonstra-tions. The mapping of this information is in the context of the platform, in this case the PLCS standard as being the bases for Share-A-space (the model server). The prototypes of the applications around the server will be publicly available and de-scriptions of the mappings can be seen as a platform definition. The Open web-based ICT Platform shows the principal idea or way of working, not neces-sarily the exact way of industry today. It is a kind of a proof of concept in a laboratory environment. In terms of Technology Readiness Level, the platform is on level 3 or 4. The main part of the Open Web-based ICT Platform for InPro is the BIM Collaboration Hub, which is based on the model server Share-A-space. For viewing and linking the Solibri Model Server is used, and for model checking the Solibri Model Checker. Share-A-space is a commercial software in use at a number of industries and organiza-tions. Share-A-space has all the functions required for the manufacturing industry for PDM and PLM collaboration and information consolidation. With the InPro additions and modifications, these generic functions are now available also for the construction indus-try. The BIM Collaboration Hub is designed using Share-A-space and is further developed and integrated with "IFC to PLCS" and "PLCS to IFC" mapping to fulfil the requirements of InPro. The PLCS and IFC toolboxes are commercial software products and used for inte-gration of the software applications used in the InPro Key Processes. Result The current prototype fulfils most of the requirements and specifications in D1 and D6. During the Key Process demonstration developments during the last year of InPro, the remaining functionality required for the demonstrations will be implemented.
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