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Simonsson, Peter
Publications (10 of 29) Show all publications
Jensen, P., Larsson, J., Simonsson, P. & Olofsson, T. (2013). Improving buildability with platforms and configurators (ed.). In: (Ed.), Carlos T. Formoso; Patricia Tzortzopoulos (Ed.), Proceedings IGLC-21: Conference of the International Group for Lean Construction. Paper presented at Annual Conference of the International Group for Lean Construction : 31/07/2013 - 02/08/2013 (pp. 771-780). Fortaleza, Brazil
Open this publication in new window or tab >>Improving buildability with platforms and configurators
2013 (English)In: Proceedings IGLC-21: Conference of the International Group for Lean Construction / [ed] Carlos T. Formoso; Patricia Tzortzopoulos, Fortaleza, Brazil, 2013, p. 771-780Conference paper, Published paper (Refereed)
Abstract [en]

The different stages in construction projects are often separated with little interaction between the different trades. Many researchers proclaim that this separation between design and production limits the buildability of construction designs. Thus there is a need for providing knowledge of rules and constraints imposed from production in the design of construction products. A way of integration of production knowledge in the design is by implementing product platforms and configurators in construction projects. This paper describes the development of a configurator for a modularized concrete bridge that can be produced efficiently. Production of bridges can be selected to be built either on site or prefabricated. Previous work to develop configurators has mainly focused on the efficiency of the design phase and is usually not linked to production improvements and simplifications. By defining the product platform for a certain bridge variant within its market segment, the technical solutions can be designed to be flexible while ensuring the buildabuility in the construction phase.The developed configurator is built in SolidWorks and parametrically coupled using Tacton Studio. The first version generates geometrical drawings. Whereas validation show that parametric modelling configurators can be used for increasing buildability and efficiency at site, and also increasing the range of feasible alternatives and for speeding up the design process.

Place, publisher, year, edition, pages
Fortaleza, Brazil: , 2013
National Category
Infrastructure Engineering Construction Management
Research subject
Structural Engineering; Construction Engineering and Management
Identifiers
urn:nbn:se:ltu:diva-40020 (URN)efcd4b35-5923-43c3-ac74-875e5271fa32 (Local ID)efcd4b35-5923-43c3-ac74-875e5271fa32 (Archive number)efcd4b35-5923-43c3-ac74-875e5271fa32 (OAI)
Conference
Annual Conference of the International Group for Lean Construction : 31/07/2013 - 02/08/2013
Note
Godkänd; 2013; 20130815 (ojajoh)Available from: 2016-10-03 Created: 2016-10-03 Last updated: 2017-11-25Bibliographically approved
Larsson, J. & Simonsson, P. (2012). Barriers and drivers for increased use of off-site bridge construction in Sweden (ed.). In: (Ed.), Simon Smith (Ed.), Association of Researchers in Construction Management (ARCOM): Proceedings of the 26th Annual Conference, 3-5 September, Edinburgh, Scotland. Paper presented at Annual ARCOM Conference : 03/09/2012 - 05/09/2012 (pp. 751-761). : Association of Researchers in Construction Management, 2
Open this publication in new window or tab >>Barriers and drivers for increased use of off-site bridge construction in Sweden
2012 (English)In: Association of Researchers in Construction Management (ARCOM): Proceedings of the 26th Annual Conference, 3-5 September, Edinburgh, Scotland / [ed] Simon Smith, Association of Researchers in Construction Management , 2012, Vol. 2, p. 751-761Conference paper, Published paper (Refereed)
Abstract [en]

There is great pressure to change the civil engineering industry in Sweden, which is said not to follow efficiency growth other manufacturing sectors are achieving. This increases a demand for innovative construction methods and a growing industrialised thinking for sustainable construction. By implementing off-site manufacturing (OSM) into bridge construction, client satisfaction can increase, bridges can be constructed faster using less resource, and more bridges for the same invested capital can be realised. A questionnaire survey and a workshop have been undertaken partly to identify benefits and drawbacks for OSM in bridge construction and partly to study if OSM satisfies the client better than on-site construction. The outcome shows that drivers of OSM meet client needs better than on-site construction alternatives. Time, cost and working environment are large drivers, correlating well with previous surveys undertaken. However, quality, as in other surveys tend to stand out as a driver, is a barrier in comparison with on-site construction. This opinion may be due to both the generally negative views for OSM bridges in Sweden and also due to previous bad experiences. Despite these negative views, results show that the hypothesis of OSM being a better alternative for satisfying the client is true. To increase its market share, barriers like reduced quality and not aesthetically pleasing must be overcome. OSM bridges are to date a rare feature in Sweden, but by display the drivers, it could become a common construction method in Sweden.

Place, publisher, year, edition, pages
Association of Researchers in Construction Management, 2012
National Category
Infrastructure Engineering
Research subject
Structural Engineering
Identifiers
urn:nbn:se:ltu:diva-40067 (URN)f0bc6269-8d2b-4033-bdf7-56720de31a84 (Local ID)978-0-9552390-6-9 (ISBN)f0bc6269-8d2b-4033-bdf7-56720de31a84 (Archive number)f0bc6269-8d2b-4033-bdf7-56720de31a84 (OAI)
Conference
Annual ARCOM Conference : 03/09/2012 - 05/09/2012
Note
Godkänd; 2012; 20121102 (ojajoh)Available from: 2016-10-03 Created: 2016-10-03 Last updated: 2017-11-25Bibliographically approved
Larsson, J. & Simonsson, P. (2012). Decreasing complexity of the on-site construction process using prefabrication: a case study (ed.). In: (Ed.), Iris D Tommelein; Christine L Pasquire (Ed.), Proceedings IGLC-20: Conference of the International Group for Lean Construction, 18-20 July, San Diego, USA. Paper presented at Annual Conference of the International Group for Lean Construction : 18/07/2012 - 20/07/2012 (pp. 841-850).
Open this publication in new window or tab >>Decreasing complexity of the on-site construction process using prefabrication: a case study
2012 (English)In: Proceedings IGLC-20: Conference of the International Group for Lean Construction, 18-20 July, San Diego, USA / [ed] Iris D Tommelein; Christine L Pasquire, 2012, p. 841-850Conference paper, Published paper (Refereed)
Abstract [en]

Implementing prefabrication is by many seen as means to improve construction in terms of managing variability and productivity. However, regarding Swedish civil engineering works this has not been adequately documented to date. This case study uses Value Stream Mapping (VSM) to document the construction of a semi-prefabricated superstructure. The intention of the project is to investigate if the bridge construction process becomes less complex to manage and control when using prefabrication instead of traditional on-site construction.By relocating parts of traditional on-site construction to a factory, the time spent on site performing traditional work tasks such as constructing formwork, mounting and fixing of rebar and casting concrete, could be decreased. Nevertheless, mapping the process revealed shortcomings such as problems placing the prefabricated beams onto the on-site constructed plate structures and also that clear communication between actors tend to increase in importance when choosing prefabrication as construction method.Results from the VSM show that the semi-prefabricated superstructure, future state, became less complex compared to current state construction and also 75% quicker to construct on-site. By redesigning the bridge to eliminate some of the infant “diseases”, prefabrication will become more common in the future of small bridge construction in Sweden.

National Category
Infrastructure Engineering
Research subject
Structural Engineering
Identifiers
urn:nbn:se:ltu:diva-38410 (URN)cccf7970-ac79-41e5-8fd0-5d318b5ff652 (Local ID)978-0-7442-1744-5 (ISBN)cccf7970-ac79-41e5-8fd0-5d318b5ff652 (Archive number)cccf7970-ac79-41e5-8fd0-5d318b5ff652 (OAI)
Conference
Annual Conference of the International Group for Lean Construction : 18/07/2012 - 20/07/2012
Note
Godkänd; 2012; 20120827 (ojajoh)Available from: 2016-10-03 Created: 2016-10-03 Last updated: 2017-11-25Bibliographically approved
Björnfot, A., Johnsson, H. & Simonsson, P. (2012). 'Find-think-write-publish': Lean thinking in scientific paper writing (ed.). Paper presented at Annual Conference of the International Group for Lean Construction : 18/07/2012 - 20/07/2012. Paper presented at Annual Conference of the International Group for Lean Construction : 18/07/2012 - 20/07/2012.
Open this publication in new window or tab >>'Find-think-write-publish': Lean thinking in scientific paper writing
2012 (English)Conference paper, Oral presentation only (Refereed)
Abstract [en]

Construction research supports long-term development of the construction industry and the society. Thus it is important to evaluate research against existing knowledge and to constantly develop new knowledge. The main mechanism for doing so is publishing scientific papers. In Sweden, praxis has developed that a Ph.D. consists of a handful of scientific papers. The average time period for a Ph.D. is five years after which the funding situation changes drastically. Previously, the duration of Ph.D. studies at Luleå University of Technology, Sweden often exceeded the planned five years, disrupting the flow of Ph.D. examinations. To increase awareness and interest in paper writing, a method was sought to visualise and manage the writing process. This paper investigates how an Oobeya room can be implemented in construction research to support paper writing. Experiences of working with the Oobeya room in three separate research divisions prove that it is possible and fruitful to better manage knowledge in academic institutions. Even though research is creative, it can be properly managed without hampering scientific freedom. Evidence from managing scientific paper writing using the Oobeya room shows that proper management of research will actually create better research that is more publishable with shorter lead times!.

National Category
Building Technologies Infrastructure Engineering
Research subject
Timber Structures; Structural Engineering
Identifiers
urn:nbn:se:ltu:diva-29703 (URN)34129e91-1b7a-40f6-960f-773e4be52835 (Local ID)34129e91-1b7a-40f6-960f-773e4be52835 (Archive number)34129e91-1b7a-40f6-960f-773e4be52835 (OAI)
Conference
Annual Conference of the International Group for Lean Construction : 18/07/2012 - 20/07/2012
Note
Godkänd; 2012; 20130312 (andbra)Available from: 2016-09-30 Created: 2016-09-30 Last updated: 2018-08-07Bibliographically approved
Simonsson, P., Björnfot, A., Erikshammar, J. & Olofsson, T. (2012). 'Learning to see' the effects of improved workflow in civil engineering projects (ed.). Paper presented at . Lean Construction Journal, 35-48
Open this publication in new window or tab >>'Learning to see' the effects of improved workflow in civil engineering projects
2012 (English)In: Lean Construction Journal, ISSN 1555-1369, E-ISSN 1555-1369, p. 35-48Article in journal (Refereed) Published
Abstract [en]

Research Question/Hypothesis: Value Stream Mapping (VSM) can, independent of work repetition, improve the performance of civil engineering projects by allowing the site management to visualize the flows of materials, resources and information.Purpose: The purpose is to show how VSM can be used by on-site practitioners to see the day-to-day flow of work, to understand the effect of straight-forward improvements to workflow, and to see the effect of applying industrialized working methods.Research Method: Applicability of VSM to civil engineering is examined through the fixing of reinforcement in two bridge construction projects. A traditional bridge was used to map (current state) and improve (future state) workflow. The potential of modern production methods are then analyzed in a second bridge project (ideal state).Findings: Allowing the site management to visualize and to see workflow improves the work performance of the two studied bridges. Addition of easy to understand and calculable metrics for lead time, inventory level and manufacturing costs, emphasize the potential savings of reactive and proactive workflow measures (≈ 80-90 %).Limitations: The paper considers fixing of reinforcement in two bridge construction projects. Additionally, the so-called future state bridge was not actually constructed, i.e. the savings stated for the future state, even if reasonable, are an approximation.Implications: The framework to visualize current, future and ideal workflow provides a framework to extend the VSM methodology to civil engineering projects.Value for practitioners: To overcome the sub-optimized mindset in civil engineering that repeatedly leads to the same practice, the paper proposes a straightforward and easy to use framework to visualize and analyze effects of workflow improvements.

National Category
Infrastructure Engineering Building Technologies Construction Management
Research subject
Structural Engineering; Timber Structures; Construction Engineering and Management
Identifiers
urn:nbn:se:ltu:diva-5551 (URN)3adf831b-ea5c-4186-807f-9fdbcae83c3e (Local ID)3adf831b-ea5c-4186-807f-9fdbcae83c3e (Archive number)3adf831b-ea5c-4186-807f-9fdbcae83c3e (OAI)
Note
Validerad; 2012; 20120327 (ysko)Available from: 2016-09-29 Created: 2016-09-29 Last updated: 2017-11-24Bibliographically approved
Rwamamara, R. & Simonsson, P. (2012). Self-compacting concrete use for construction work environment sustainability (ed.). Paper presented at . Journal of Civil Engineering and Management, 18(5), 724-734
Open this publication in new window or tab >>Self-compacting concrete use for construction work environment sustainability
2012 (English)In: Journal of Civil Engineering and Management, ISSN 1392-3730, E-ISSN 1822-3605, Vol. 18, no 5, p. 724-734Article in journal (Refereed) Published
Abstract [en]

Many of those working on construction sites are exposed to demanding work loads; construction workers lift and carry heavy materials and work in awkward postures. Occupational injuries and accidents due to poor ergonomics are more common in the construction industry and many times lead to human tragedies, disrupt construction processes and adversely affect the cost, productivity, and the reputation of the construction industry. In Sweden, it is reported that concrete workers have the highest relative work-related musculoskeletal injury frequency. Therefore, the use of ergonomic production methods to prevent this can have a significant human, social and financial impact. Research introduced here presents a case study of comparative analyses of ergonomic situations for concrete workers performing concrete casting processes. Three different ergonomic risk assessment methods were used to assess the physical strain, hand-arm vibration and noise affects risks involved in concrete casting work tasks. The combination of technical and managerial factors results in a system where workers are as efficient and safe as possible during their work tasks, and thus, makes the construction work environment sustainable.The aim of our research is to find practical methods to evaluate and compare two different concrete casting methods from an ergonomic perspective. The focus is on the production of cast-in-place concrete bridge constructions where the traditional concrete casting method is compared with the SCC (Self-Compacting concrete) casting method. To be able to identify work-related musculoskeletal injury risks due to concrete casting work tasks, QEC (Quick Exposure Check for musculoskeletal risks), PLIBEL (Checklist for identification for Ergonomics Hazards) and ErgoSAM (Ergonomic production technology method) methods were used. Ergonomic risks analysis methods QEC, PLIBEL and ErgoSAM have all shown capabilities to evaluate construction work activities and thus determine whether a construction work activity constitutes a musculoskeletal risk to the worker or not before any ergonomic intervention is introduced.As a result the present ergonomic risks emanating from work methods used in the traditional concrete placing can be significantly reduced with the use of self-compacting concrete (SCC) that eliminates awkward work postures, noise and hand arm vibration, thereby reducing if not eliminating musculoskeletal injuries among concrete workers during their concrete casting work tasks.

National Category
Construction Management Infrastructure Engineering
Research subject
Construction Engineering and Management; Structural Engineering
Identifiers
urn:nbn:se:ltu:diva-11021 (URN)10.3846/13923730.2012.723399 (DOI)000309445300011 ()2-s2.0-84867470571 (Scopus ID)9e9e49b5-7f8b-4e2a-92c7-e04cb64cb1b8 (Local ID)9e9e49b5-7f8b-4e2a-92c7-e04cb64cb1b8 (Archive number)9e9e49b5-7f8b-4e2a-92c7-e04cb64cb1b8 (OAI)
Note
Validerad; 2012; 20121023 (ysko)Available from: 2016-09-29 Created: 2016-09-29 Last updated: 2018-07-10Bibliographically approved
Lu, W., Olofsson, T., Jensen, P. & Simonsson, P. (2011). BIM-based lean-agile supply chain for industrialized housing (ed.). In: (Ed.), Hans-Joachim Bargstädt; Karin Ailland (Ed.), CONVR 2011: Proceedings of the 11th International Conference on Construction Applications of Virtual Reality. Paper presented at International Conference on Construction Applications of Virtual Reality : 03/11/2011 - 04/11/2011 (pp. 262-270). : Bauhaus-Universität Weimar
Open this publication in new window or tab >>BIM-based lean-agile supply chain for industrialized housing
2011 (English)In: CONVR 2011: Proceedings of the 11th International Conference on Construction Applications of Virtual Reality / [ed] Hans-Joachim Bargstädt; Karin Ailland, Bauhaus-Universität Weimar , 2011, p. 262-270Conference paper, Published paper (Refereed)
Abstract [en]

From 1990 to 2002, approximately 74% single-family detached houses in Sweden are prefabricated by industrialized housing builders. To fulfill the benefits of industrialization, the design specifications have to be worked out from a list of predefined standardized components and elements. On the other hand, the requirements of client (diversity, cost and delivery time) make design specification process seems to be complex and paradoxical situation, which may lead to the ad-hoc design customization and slow response to potential client’s enquiry. This research therefore presents a BIM-based configuration design, in which lean-agile supply chain is used to balance and manage the trade-off between builders and clients, standardization and customization. Furthermore, integrating discrete event simulation (DES) with building information model (BIM) enables an enriched information model including cost and delivery time. The research argues that the industrialized housing is the systematic trade-off and balancing the values of all stakeholders and BIM-based lean-agile industrialized configuration design provides an effective trade-off platform.

Place, publisher, year, edition, pages
Bauhaus-Universität Weimar, 2011
Series
Schriften der Professur Baubetrieb und Bauverfahren ; 21
National Category
Construction Management Infrastructure Engineering
Research subject
Construction Engineering and Management; Structural Engineering
Identifiers
urn:nbn:se:ltu:diva-27237 (URN)099f6a1f-e670-44b7-aea4-ba4ae836e2b3 (Local ID)978-3-86068-458-0 (ISBN)099f6a1f-e670-44b7-aea4-ba4ae836e2b3 (Archive number)099f6a1f-e670-44b7-aea4-ba4ae836e2b3 (OAI)
Conference
International Conference on Construction Applications of Virtual Reality : 03/11/2011 - 04/11/2011
Note
Godkänd; 2011; 20111115 (welu)Available from: 2016-09-30 Created: 2016-09-30 Last updated: 2017-11-25Bibliographically approved
Simonsson, P. (2011). Buildability of concrete structures: processes, methods and material (ed.). (Doctoral dissertation). Paper presented at . Luleå: Luleå tekniska universitet
Open this publication in new window or tab >>Buildability of concrete structures: processes, methods and material
2011 (English)Doctoral thesis, comprehensive summary (Other academic)
Abstract [en]

The causes for the slow development of the construction industry is often attributed the traditional ”peculiarities of construction“, including such factors as one-of-a-kind products, temporary organisation, and on-site production. However, signs of new thinking are becoming apparent in the construction industry in Sweden that emphasise change. Globalization and increased competition are factors for change. The possible future shortage of available qualified workers, demand for shorter construction times and calculated higher risks for projects are also catalysers for the implementation of new and alternative solutions. Still, new production methods and construction ideas are rarely introduced in construction projects, with low or no productivity increase of the industry as a result. Within the scope of this thesis work, the combination of creating buildability during the design phase and utilizing the philosophies of lean construction during the construction phase has been adapted to improve civil engineering concrete construction work. Several full scale projects have been studied and a questionnaire survey has been performed. In order to be able to introduce changes such as prefabricated reinforcement solutions, left concrete form systems and Self-Compacting Concrete (SCC) as a mean to increase productivity at site, there is a need to create projects that are buildable and able to be constructed, i.e. constructions that we know in advance are practically feasible and productive. All involved participants throughout the whole project are therefore responsible for creating buildability in the project. The case studies show that the potential increase in productivity can be vast. The introduction of prefabricated rebar sections, e.g. rebar carpets and rebar cages, decreases time spent on fixing reinforcement with up to 80%. The use of SCC potentially saves 65% on time spent during casting. Both methods improve the working environment substantially. However, the introduction of new methods also put demands on properly planned, communicated and managed construction operations on-site. Thus, the use of Buildability in the design can promote new solutions together with Lean Construction philosophies in management of these alternatives are suitable tools in changing the construction industry. Buildability deals with creating design for “ease of construction” whilst Lean construction focus on planning of a productive flow of work tasks and resources for the selected production methods. The combination of buildability in the “design for” part and lean construction philosophy in the “ease of construction” part within one of the most accepted definitions of buildability i.e. “the extent to which the design of a building facilitates ease of construction” will be able to encourage an increase in productivity at construction sites. This is possible if important factors are considered and utilised sufficiently. Some of these important factors highlighted in this thesis work are: • early project involvement of contractor, to increase construction knowledge during design, a result from the questionnaire survey; • design projects in 3D and create adequate virtual work instructions for workers to study prior to performing the work task, a result from full scale studies; • plan the construction work tasks and material supply thoroughly using lean tools, a result from full scale studies; • make sure adequate attention is spent on the working environment early in a project, this will result in workers feeling confident in a safe work environment, a result from full scale studies. The thesis corroborates the conclusion that, if these factors are considered and encouraged there is a potential for improvement of productivity at site, enhanced quality of finished structures as well as lowered costs for constructing structures in the future.

Abstract [sv]

Orsakerna till den långsamma utvecklingen av byggindustrin sägs ofta vara de traditionella egenheterna/särdragen för byggindustrin exempelvis att byggnaderna är enstycksproducerade, innehar en temporär organisation och att de är platsbyggda. Det finns emellertid tecken som tyder på att en förändring är på gång inom byggindustrin i Sverige (och mest troligt också i andra länder). Den pågående globaliseringen och den ökande konkurrensen på markanden är två faktorer som pekas ut som möjliga orsaker till förändringsbenägenheten inom branschen. Ytterligare en faktor som påverkar intresset för förändring kan vara att antalet kunniga hantverkare minskar på marknaden. Det kan därför vara svårt att få tag på hantverkare till de planerade arbetsuppgifterna och det kanske därför inte längre är ekonomiskt försvarbart att använda tidskrävande och ohälsosamma arbetsmetoder. Andra faktorer vilka kan tänkas påverka det ökade intresset för alternativa produktionsmetoder kan vara, en allt kortare byggtid och större av företagen kalkylerade risker i projekt. Alternativa produktionsmetoder och konstruktionstekniska lösningar är tillsammans med stora produktivitetsökningar fortfarande ganska ovanliga inom byggindustrin. Inom ramen för det här avhandlingsarbetet har kombinationen mellan buildability och Lean d.v.s. att skapa byggbarhet inom projekteringsstadiet och ett bra flöde för arbetsuppgifterna på arbetsplatsen sökts för att försöka förbättra anläggningsbyggandet i Sverige. Flera fullskaleprojekt har studerats samtidigt som en enkätundersökning genomförts för att försöka analysera aktörernas syn på byggbarhet och på dess påverkan på produktivitet på arbetsplatserna. Byggbarhet handlar om att ”projektera för enkelhet vid byggnationen” genom att spendera tillräckligt med kraft och energi i projekteringen. Konstruerbarhet handlar om att ”använda tillgängliga resurser på ett optimalt sätt”. Lean teorier och filosofier handlar om att skapa ett flöde av de ingående arbetsuppgifterna och se till att flödet sker utan avbrott. Det sker genom en att skapa en bra planering av arbetsuppgifternas innehåll och dess inbördes ordning så att de kan utföras utan avbrott så att produktionen optimeras. För att möjliggöra en introduktion av tex. förtillverkade armeringsenheter, kvarsittande betongformar och självkompakterande betong (SKB) behövs det skapas enkelhet i byggfasen. Enkelhet skapas i de tidiga skedena av ett projekt och fortsätter sedan genom samtliga projekteringsstadier av ett projekt fram till start byggnation. Enkelhet skapas genom att projekten projekteras så att det i förväg går att veta att de är fysiskt genomförbara. Alla involverade parter är därför tillsammans ansvariga för att skapa enkelhet i projekten. Fullskalestudierna visar att potentialen för att förbättra produktiviteten är stor. Vid införandet av förtillverkade armeringsenheter tex. rullarmering och armeringskorgar kan så mycket som 80% av tiden spenderad på att armera traditionellt sparas om användning av rullarmering möjliggörs. Omkring 65% av all tid spenderad på att gjuta traditionellt kan minskas om SKB används istället och om hantverkarna instrueras med andra arbetsuppgifter då det inte behöver vibrera betongen vid gjutning längre. Även arbetsmiljön blir förbättrad om alternativa arbetsmetoder möjliggörs, både förtillverkade armeringsenheter och SKB förbättrar arbetsmiljön med tre gånger i jämförelse med traditionella arbetsmetoder. Det ställs dock krav på att arbetet är väl planerat, kommunicerat och att hantverkarna förstår det innan det startar. En slutsats som arbetet tagit är att genom att kombinera dessa båda teorier och använda byggbarhetens ”projektera för” för att sedan kombinera det med att skapa ”enkelhet i byggnationen” genom att där använda lean teorier kan byggindustrin ta ett steg framåt i produktivitet på arbetsplatserna. Det blir möjligt om några viktiga faktorer hanteras på rätt sätt vid rätt ögonblick. Några av de viktiga faktorerna vilka är poängterade i avhandlingen är: • tidigt engagemang av entreprenören i projekten för att öka på byggkunskapen i projekteringsfasen, ett resultat av enkätundersökningen • projektera konstruktionerna i 3D och skapa lämpliga virtuella arbetsbeskrivningar för att hantverkarna ska kunna studera arbetsuppgifterna innan de ska utföras, ett resultat från fullskaleförsöken • planera arbetsuppgifterna och dess materialanvändning och hantering noga med hjälp av leanverktyg, ett resultat från fullskaleförsöken • se till att arbetsmiljön får tillräckligt med tillsyn och att det blir utarbetat på rätt sätt, det kommer att skapa hantverkare som känner sig trygga i sina arbetsuppgifter och som kan stanna kvar på marknaden. Ett resultat från flera fullskalestudier Tas det tillräcklig hänsyn till de här faktorerna och att det uppmuntras att arbeta med dem finns en stor potential för att öka produktiviteten på arbetsplatserna, öka på kvaliteten på de slutliga produkterna och att bygga till lägre kostnader i framtiden, det är en av de viktigaste slutsatserna i den här avhandlingen.

Place, publisher, year, edition, pages
Luleå: Luleå tekniska universitet, 2011
Series
Doctoral thesis / Luleå University of Technology 1 jan 1997 → …, ISSN 1402-1544
National Category
Infrastructure Engineering
Research subject
Structural Engineering
Identifiers
urn:nbn:se:ltu:diva-17098 (URN)19ad8a36-e956-4023-afa1-5d9e88db643c (Local ID)978-91-7439-243-2 (ISBN)19ad8a36-e956-4023-afa1-5d9e88db643c (Archive number)19ad8a36-e956-4023-afa1-5d9e88db643c (OAI)
Note
Godkänd; 2011; 20110328 (petsim); DISPUTATION Opponent: PhD Peter F Court, Loughborough University, Leicestershire/Crown House Technologies Limited, United Kingdom, Ordförande: Professor Mats Emborg, Institutionen för samhällsbyggnad och naturresurser, Luleå tekniska universitet Tid: Fredag den 29 april 2011, kl 10.00 Plats: F1031, Luleå tekniska universitetAvailable from: 2016-09-29 Created: 2016-09-29 Last updated: 2017-11-24Bibliographically approved
Simonsson, P. & Emborg, M. (2011). Increasing the use and performance of SCC in bridges (ed.). In: (Ed.), (Ed.), Nordic Concrete Research: Proceedings of the XXI Nordic Concrete Research Symposium, Hämeenlinna, Finland 2011. Paper presented at Nordic Concrete Research Symposium : 30/05/2011 - 01/06/2011 (pp. 99-103). Oslo: The Nordic Concrete Federation
Open this publication in new window or tab >>Increasing the use and performance of SCC in bridges
2011 (English)In: Nordic Concrete Research: Proceedings of the XXI Nordic Concrete Research Symposium, Hämeenlinna, Finland 2011, Oslo: The Nordic Concrete Federation , 2011, p. 99-103Conference paper, Published paper (Refereed)
Place, publisher, year, edition, pages
Oslo: The Nordic Concrete Federation, 2011
Series
Nordic Concrete Research, ISSN 0800-6377 ; 43:1
National Category
Infrastructure Engineering
Research subject
Structural Engineering
Identifiers
urn:nbn:se:ltu:diva-40134 (URN)f215acde-93cd-4709-b234-e7865024328c (Local ID)978-82-8208-025-5 (ISBN)f215acde-93cd-4709-b234-e7865024328c (Archive number)f215acde-93cd-4709-b234-e7865024328c (OAI)
Conference
Nordic Concrete Research Symposium : 30/05/2011 - 01/06/2011
Note
Validerad; 2011; 20111216 (ysko)Available from: 2016-10-03 Created: 2016-10-03 Last updated: 2018-03-26Bibliographically approved
Björnfot, A., Bildsten, L., Erikshammar, J., Haller, M. & Simonsson, P. (2011). Lessons learned from successful value stream mapping (VSM) (ed.). In: (Ed.), John Rooke; Dave Bhargav (Ed.), Proceedings of IGLC-19: 19th Conference of the International Group for Lean Construction. Paper presented at Annual Conference of the International Group for Lean Construction : 13/07/2011 - 15/07/2011 (pp. 163-173). Lima: Fondo Ed. Pontificia Universidad Católica del Peru
Open this publication in new window or tab >>Lessons learned from successful value stream mapping (VSM)
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2011 (English)In: Proceedings of IGLC-19: 19th Conference of the International Group for Lean Construction / [ed] John Rooke; Dave Bhargav, Lima: Fondo Ed. Pontificia Universidad Católica del Peru , 2011, p. 163-173Conference paper, Published paper (Other academic)
Abstract [en]

To improve, it’s crucial to see! Vital characteristics of Lean are visualisation and transparency, i.e. allowing everyone to see all what occurs in production. A common tool for this purpose is Value Stream Mapping (VSM). Due to varying flows, performing a successful VSM in construction confers additional challenges. In this paper, lessons learned from successful VSM studies in construction are provided.Three VSM case studies were performed at different companies ranging from patio door manufacturing to kitchen cabinet assembly. Lessons learned can be structured into three phases; preparing the VSM (selecting “value stream leaders” and VSM team, clarifying values, etc.), performing the VSM (use of mapping tools, approximation of key indicators, waste identification, etc.), and following-up the VSM (Plan-Do-Check-Act, evaluating customer values, etc.).For the involved companies, the lessons learned imply the start of a “Lean journey” even though the involved companies found it difficult to relate VSM improvements to business strategies. Consequently, there are opportunities to further improve the application of VSM. However, it’s important to remember that VSM is about the straight-forward visualisation of flows and that these flows are made transparent for the whole organisation.

Place, publisher, year, edition, pages
Lima: Fondo Ed. Pontificia Universidad Católica del Peru, 2011
National Category
Building Technologies Infrastructure Engineering
Research subject
Timber Structures; Structural Engineering
Identifiers
urn:nbn:se:ltu:diva-26981 (URN)043e9a8c-0c0e-46d5-acb4-aaee216fb06e (Local ID)9781622768233 (ISBN)043e9a8c-0c0e-46d5-acb4-aaee216fb06e (Archive number)043e9a8c-0c0e-46d5-acb4-aaee216fb06e (OAI)
Conference
Annual Conference of the International Group for Lean Construction : 13/07/2011 - 15/07/2011
Projects
Lean Wood Engineering
Note
Godkänd; 2011; Bibliografisk uppgift: Conference Chair Jorge Luis Izquierdo Graña y Montero Pontificia Universidad Católica del Perú Lima, Peru July 13-15 2011; 20110719 (jarkko)Available from: 2016-09-30 Created: 2016-09-30 Last updated: 2017-11-25Bibliographically approved
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