| 1. |
|
|
| 2. |
- Eriksson, Helen, et al.
(författare)
-
Comparison of versioning methods to improve the information flow in the planning and building processes
- 2020
-
Ingår i: Transactions in GIS. - : Wiley. - 1467-9671 .- 1361-1682.
-
Tidskriftsartikel (refereegranskat)abstract
- Version management is a prerequisite for digital information flow between phases in the planning and building processes. Information evolves over time and many parties retrieve information from the various phases. The aim of this article is to evaluate versioning methods, focusing on geodata buildings in the 3D cadastre process. The main attention in the evaluation is on the comprehensive ISO standard Product Lifecycle Support (PLCS). PLCS is evaluated against two simpler versioning methods, the versioning in CityGML 3.0 and a modified Git versioning method implemented in CityJSON. CityGML 3.0 fulfils all but one requirement and PLCS meets all. The methods vary in complexity; the Git proposal is a simple solution, easy to implement and maintain, while PLCS includes all functionalities and is complex to implement. There is a trade‐off between number of functionalities and complexity, it is therefore important that the intended purpose determines the choice of versioning method.
|
|
| 3. |
- Hallberg, Daniel, et al.
(författare)
-
On the use of open bim and 4D visualisation in a predictive life cycle management system for construction works
- 2011
-
Ingår i: Electronic Journal of Information Technology in Construction. - 1403-6835 .- 1874-4753. ; 16, s. 445-466
-
Tidskriftsartikel (refereegranskat)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.
|
|
| 4. |
- Jansson, Gustav, et al.
(författare)
-
Requirements transformation in construction design
- 2010
-
Ingår i: CIB W78 27th International Conference on Applications of IT in the AEC Industry & Accelerating BIM Research Workshop.
-
Konferensbidrag (övrigt vetenskapligt/konstnärligt)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.
|
|
| 5. |
|
|
| 6. |
|
|
| 7. |
|
|
| 8. |
- Norberg, Håkan, et al.
(författare)
-
Byggsynkronisering
- 2009
-
Rapport (övrigt vetenskapligt/konstnärligt)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.
|
|
| 9. |
- Parsanezhad, Pouriya, 1978-, et al.
(författare)
-
Implications of a BIM-based facility management and operation practice for design-intent models
- 2016
-
Ingår i: eWork and eBusiness in Architecture, Engineering and Construction - Proceedings of the 11th European Conference on Product and Process Modelling, ECPPM 2016. - : CRC Press/Balkema. - 9781138032804 ; , s. 109-117
-
Konferensbidrag (refereegranskat)abstract
- The aim of this paper is to investigate how beneficial contemporary design-intent BIM deliverables could be to FM&O activities and what should be changed with regard to their structure and content for further development of FM&O-intent BIM hand-over. Deliverables of the detailed design phase of a middle-sized educational building were evaluated against requirements derived from a diverse set of resources and directives. The most crucial qualities for the detailed design BIM hand-over documents to be used in FM&O are general concerns about the overall structure of the models as well as classification, attributes and relations of objects. Flexibility and extensibility of the models is also decisive for suitability of the models for FM&O. A number of deficiencies and insufficiencies with the structure and content of the BIM deliverables of the case project have been disclosed. Findings could provide valuable insights for improving the quality of future BIM hand-over documents.
|
|
| 10. |
- Parsanezhad, Pouriya, 1978-
(författare)
-
Towards a BIM-enabled Facility Management : Promises, Obstacles and Requirements
- 2019
-
Doktorsavhandling (övrigt vetenskapligt/konstnärligt)abstract
- A substantial share of the organisations’ annual costs is associated with their facilities. A fundamental shift from a reactive facility management (FM) practice to a strategically orchestrated FM profession is thus a prerequisite for increased resource efficiency. One of the requirements for a coordinated facility management practice is information logistics. Building Information Modelling (BIM) is one of the most prominent initiatives frequently addressed by scholars and practitioners as a game-changer in construction industry in general and FM in particular. In order to fully reap the benefits of BIM in FM, however, further research is required. This study aims, therefore, to investigate the challenges against successful implementation and realizing the benefits of BIM in FM.The primary focus in this study is the FM phase; but the earlier upstream phases have also been studied due to their implications for a BIM-enabled FM. From a spatial-scale perspective, this study is mainly focused on buildings rather than other construction entities. The findings could benefit both academics and practitioners. Overall, a pragmatic research philosophy has been adopted and the main research strategy used here is case study.The current dissertation is composed of five papers. The focus of knowledge acquisition through papers alternately shifts between the applied and the theoretical. The primary theoretical grounds of the papers are the built environment management model (BEM2) (Ebinger and Madritsch, 2012) and BIM Framework (Succar, 2009). Further theories from the fields of design methodology and cognitive science have also been revisited.Paper 1 provides a theoretic basis for more focused studies on existing and desired processes in FM and their associated information transactions. In Paper 2, the current status of the building information management technologies used in FM is summarized; the prevailing issues are identified; and a number of technical solutions have been devised. Paper 3 shifts the focus back to the design phase and provides a knowledge base for developing further theoretical frameworks and conceptual models that support IT-implementation for formalized requirements management. Through Paper 4, it has been investigated how beneficial contemporary design-intent BIM deliverables could be to FM and what should be improved. The focus of Paper 5 again shifts back to the FM phase. Here, a methodology has been presented for measuring the benefits of BIM in FM using a proposed benefits realization assessment framework.Obtaining the full range of the benefits of BIM in FM, however, requires radical organizational changes and introducing new roles. Further research is needed for defining new business models that underpin and motivate such extensive organizational and procedural changes. More research should also be undertaken for enhancing data interoperability among different actors as well as among IT platforms used at different spatial scales namely BIM and GIS applications.
|
|
