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  • 1.
    Simu, Kajsa
    et al.
    Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Industrilized and sustainable construction.
    Räisänen, Christine
    Construction Management, Chalmers University of Technology, Gothenburg, Sweden.
    Erikshammar, Jarkko
    Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Industrilized and sustainable construction.
    A Test Platform of Viable Methods to Improve Productionand Learning onConstruction Sites2019Conference paper (Refereed)
    Abstract [en]

    Purpose–A comprehensive intervention test platform, Valla Coach, including quantitative and qualitativemethods to measure and improve workflows on site and promote coaching and collective learning has beendeveloped jointly by researchers and practitioner. The study aims to describe the methodologicalunderpinning of the platform, and discusses the preliminary results and implications.

    Design/Methodology/Approach–Expansive Learning Theory grounded in a cultural–historicalperspective underpins the conceptual realisation of the test platform. The viability of the platform was testedin four contextually different construction sites (and contractors), combining established and newmeasurement tools, qualitative intervention approaches and coaching according to the production challengesat hand.

    Findings–Valla Coach created a space on site where researchers-as-coaches and operatives converged toco-construct (new) knowledge and learn together. The knowledge that emerged from the interactions gained legitimacy through its situatedness and practical value for the operatives.

    Research Limitations/Implications–Valla Coach provides opportunities for researchers andpractitioners to probe the taken-for-granted. Moreover, a variety of methods and tools are tested in different contexts. The interventions prompt questioning of assumptions and make contradictions visible. Valla Coachremains work-in-progress and needs further evaluation and validation.

    Practical Implications–We contribute insights from negotiating socio-technical complexities, evaluating digital measurement tools and technologies and experiences of operatives. Tensions at the interface between the organisation and project are rendered visible.

    Originality/Value–A bottom–up approach that is a combination of practice-based tools and methods and of theories of learning and sustainable and continuous improvements where the operators are the main actors that enable productive activity.

  • 2.
    Erikshammar, Jarkko
    et al.
    Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Industrilized and sustainable construction.
    Stehn, Lars
    Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Industrilized and sustainable construction.
    Ökad samverkan i försörjningskedjan genom sälj- och verksamhetsplanering: En analys av ett SME sågverks metod och process2016In: PLANs Forsknings- och tillämpningskonferens 2016: Logistik – teori möter praktik / [ed] Peter Bergling, Helen Forslund, 2016, p. 65-75Conference paper (Other academic)
    Abstract [sv]

    Ökad videraförädling för små och medelstora (SME) sågverk innebär att ett ensidigt fokus på produktionsprocessen och sågutbyte bör kompletteras med ökad kundfokus. Sälj- och verksamhetsplanering (SVP) är en planeringsmetod som balanserar kundkrav med övriga operativa processer på medellång sikt. Syftet med denna artikel är att beskriva en anpassad SVP-metod och en SVP-process som möter sågverkets specifika behov av ökad effektivitet i försörjningskedjan samt beskriva faktorer som kan undersökas vidare för att skapa en ökad förståelse av SVP tillämpningen inom sågverkets kontext. Data som analyserats är från en longitudinell fallstudie på ett svenskt SME sågverk och processen för införandet av en SVP-metod. Sågverket sågar cirka 100000 kubikmeter per år av både gran och tall. Forskningen visar att SVP-metoden bör utvecklas så att den kan balansera i två nivåer; både för sågat färdigvarulager och lager för vidareförädling med hänsyn tagen till divergent och konvergent produktflöde. Den utvecklade metoden visar på sågverkets behov av balanserat råmateriallager, men också behovet av att lösa konflikter mellan sågutbyte och olika marknadskrav. Identifierade faktorer för vidare forskning av SVP, som en tillämpad metod och process, är sågverkets förmåga att linjera interna ekonomiska mål, sågverkets behov av ökad kommunikation i försörjningskedjan, tydligare marknadskrav och engagemang från företagsledningen.

  • 3.
    Erikshammar, Jarkko
    Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Industrilized and sustainable construction.
    Aktivitet: Influenser från andra branscher: Lean och SCM i bygg – möjligheter och utmaningar2015Conference paper (Other (popular science, discussion, etc.))
    Abstract [sv]

    Presentation på Brains n Bricks årliga konferens

  • 4.
    Erikshammar, Jarkko
    Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Industrilized and sustainable construction.
    Activity: Parametric Value Stream Mapping Framework: A Case Study of a Small Swedish Industrialized House-Building Supplier2014Conference paper (Other (popular science, discussion, etc.))
    Abstract [en]

    Design Management

  • 5.
    Erikshammar, Jarkko
    Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Industrilized and sustainable construction.
    Activity: Supply Chain Integration for Small Sawmills in Industrialized House-Building: Lunchtime Seminar , Lunchtime Seminar2014Conference paper (Other (popular science, discussion, etc.))
    Abstract [sv]

    Presentation av doktorsavhandling på School of Construction Management and Engineering, University of Reading. 5th June 13.00-13.30

  • 6.
    Erikshammar, Jarkko
    Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Industrilized and sustainable construction.
    Activity: Wood-based product platforms: An industrial application of industrialized house-building, An industrial application of industrialized house-building2014Conference paper (Other (popular science, discussion, etc.))
    Abstract [sv]

    Föreläsning om träbyggnadssystem inom industriellt byggandeFöreläsning om träbyggnadssystem inom industriellt byggande på University of Reading.

  • 7.
    Erikshammar, Jarkko
    Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Industrilized and sustainable construction.
    Aktivitet: Ansökt och beviljats medel för lärarutbyte inom ERASMUS (TS): University of Reading2014Other (Other (popular science, discussion, etc.))
    Abstract [sv]

    Som lärare eller doktorand vid Luleå tekniska universitet kan du få bidrag för att undervisa vid ett partneruniversitet i Europa via Education and Culture Lifelong Learning Programme. Som undervisning räknas all typ av undervisning av studenter, såsom föreläsningar, seminarier, individuell handledning, examination, etc.

  • 8.
    Erikshammar, Jarkko
    Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Industrilized and sustainable construction.
    Aktivitet: Flervåningsbyggnader i trä och andra avancerade träbyggnader2014Other (Other (popular science, discussion, etc.))
  • 9.
    Erikshammar, Jarkko
    Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Industrilized and sustainable construction.
    Aktivitet: Lärarutbyte inom ERASMUS (TS): Engineering and engineering trades2014Other (Other (popular science, discussion, etc.))
    Abstract [en]

    MSc Programme

  • 10.
    Erikshammar, Jarkko
    Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Industrilized and sustainable construction.
    Aktivitet: Workshop2014Other (Other (popular science, discussion, etc.))
  • 11.
    Erikshammar, Jarkko
    et al.
    Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Structural and Construction Engineering.
    Alestig, Erik
    Prolog AB.
    Lu, Weizhuo
    Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Structural and Construction Engineering.
    Parametric Value Stream Mapping Framework: A Case Study of a Small Swedish Industrialized House-Building Supplier2014In: Proceedings of IGLC22: 22nd Annual Conference of the International Group for Lean Consruction : understanding and improving project based production / [ed] Bo Terje Kalsaas; Lauri Koskela; Tarcisio Abreu Saurin, Oslo, Norway: Akademika forlag, 2014, Vol. 1, p. 425-436Conference paper (Refereed)
    Abstract [en]

    Industrialized house-building is based on repetitive processes used in the supply, design, manufacturing and erection of pre-configured houses. Industrialized house-building contractors are dependent on many small suppliers and sub-contractors in their supply chain. These small suppliers, with limited resources and capabilities, need to be able to develop products and processes in order to deliver future customer value without wasting development resources on non-viable products. Our question is whether product development by small and medium-sized (SME) industrialized house-building suppliers could be supported by parametric Value Stream Mapping.The objective is to explore a process design framework in which Value stream Mapping (VSM) is used to identify improvements and to generate product development suggestions, based on a set of parameters defined as P1, P2..., Pn.The testing was carried out at a Swedish SME supplier to the industrialized house-building sector, using a newly-developed roofing board with an integrated membrane, with the parameters (P1) customer needs, (P2) waste on construction site and (P3) construction worker safety. Data were collected using interviews and video-recorded participant observations on two construction sites. Findings indicate that VSM cannot describe attributes of a product other than those associated with production flow. However, parametric VSM helped the case study company to stop current development and instead suggest valuable product attributes. The implications are that parametric VSM enhances the application of VSM. Parametric VSM can be used by SME suppliers as an input to product development in order to validate product attributes before launch. However, this is based on a single case study and further research is needed.

  • 12.
    Erikshammar, Jarkko
    Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Structural and Construction Engineering.
    Supply Chain Integration for Small Sawmills in Industrialized House-Building2014Doctoral thesis, comprehensive summary (Other academic)
    Abstract [en]

    The position taken in this thesis is that a small and medium sized supplier makes a strategic choice to integrate their supply chain with industrialized house-building companies in order to deliver customer value and sustain competitive advantage. Customer values for industrialized house-building means delivery reliability, product quality, supply chain and market flexibility. Supply chain integration is the means for understanding customer requirements and to use supply chain resources efficiently through collaboration. The purpose of this thesis is to explore a small sawmill transition from single-minded focus on raw material optimization and increased production efficiency towards supply chain integration and customer focus in the industrialized house-building context. The thesis basis is a systematic literature review and five appended papers, based on a longitudinal case study at a small Swedish sawmill. Data has been collected through interviews, participant observations, and archival data during the period of 2010-2012. The theoretical gap is formed by the lack of consensus on supply chain integration. Viewing the criticism it is not clear how the constructs that constitute supply chain integration affect the possibility of succeeding with integration, how the integration should be measured, or how it affects the performance. Hence this thesis makes a holistic approach and collect empirical data trough method development on a strategic (business models, supply chain management), tactical (supply chain planning, sales and operations planning) and operational (value stream mapping, lean value delivery, simulation) supply chain integration process within industrialized house-building context. However, the findings do not conclusively prove or disprove the position. Findings indicate that small sawmills with limited resources and capabilities can employ methods of sales and operations planning, business model decomposition and value stream mapping enhanced decision making. The main contribution is the empirical data on supply chain integration divided and analyzed from strategic, tactical and operational process levels synthesized that with understanding of the importance of integrating these three levels dual perspective. Thus contribute with theoretical enhancement and reduction of the still-identifiable fragmentation of supply chain integration theory.

  • 13.
    Erikshammar, Jarkko
    et al.
    Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Structural and Construction Engineering.
    Bildsten, Louise
    Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Structural and Construction Engineering.
    Haller, Martin
    Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Structural and Construction Engineering.
    Value Stream Mapping: a case study of an inner wall manufacturer2014Report (Other academic)
    Abstract [sv]

    Kartläggning av värdeflöden har blivit ett av de mer använda verktygen inom Lean sammanhang. Dessutom är det ett viktigt verktyg för ständiga förbättringar.Dess framgång är kopplat till skapandet av en stor visuell karta över hela företagets processer och samspelet mellan dessa processer. I arbetet med att göra kartan, fås en djupare kunskap om företaget genom att de som utför arbetet i processerna deltar i arbetet att rita upp värdeflödeskartan.Denna rapport är en fallstudie av Moelven Eurowand, en tillverkare av innerväggssystem för kontor. Syftet med studien var att undersöka möjligheterna att förkorta ledtiden för glasväggar. Företaget besöktes två gånger. Vid det första besöket genomfördes kartläggning av värdeflödet och vid det andra besöket skedde uppföljningen av kartläggningen. Företagets representanter uttryckte att värdeflödesanalysen var givande.

  • 14.
    Erikshammar, Jarkko
    Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Industrilized and sustainable construction.
    Activity: Value Stream Mapping (VSM): A tool for improving your product development process design2013Conference paper (Other (popular science, discussion, etc.))
    Abstract [en]

    Visiting lecturer at M7014T Product Development Processes (7,5 Hp/ECTS)

  • 15.
    Erikshammar, Jarkko
    Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Industrilized and sustainable construction.
    Aktivitet: Aktiebolaget Systemstöds traditionsenliga kunddag2013Other (Other (popular science, discussion, etc.))
  • 16.
    Erikshammar, Jarkko
    Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Industrilized and sustainable construction.
    Aktivitet: En pågående fallstudie av svenska SME sågverk: TräIN presentation 2013-10-24 Jarkko Erikshammar2013Conference paper (Other (popular science, discussion, etc.))
    Abstract [sv]

    Beskrivning av pågående forskning för TräIns styrgrupp.

  • 17.
    Erikshammar, Jarkko
    Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Industrilized and sustainable construction.
    Aktivitet: Grön Workshop2013Other (Other (popular science, discussion, etc.))
  • 18.
    Erikshammar, Jarkko
    Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Industrilized and sustainable construction.
    Aktivitet: Handledning av examensarbete: Examensarbete, 30 hp, för Civilingenjörsexamen, Caroline Stråhle2013Other (Other (popular science, discussion, etc.))
    Abstract [sv]

    Handledning av examensarbetet: Resurseffektivitet och flödeseffektivitet i husbyggande: En fallstudie av sandwichvägg och utfackningsvägg

  • 19.
    Erikshammar, Jarkko
    Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Industrilized and sustainable construction.
    Aktivitet: Jarkko Erikshammar, industridoktorand: Studerar värdeflödet i helheten2013Other (Other (popular science, discussion, etc.))
    Abstract [sv]

    Kort presentation av forskningsresultat inom TräIN

  • 20.
    Erikshammar, Jarkko
    Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Industrilized and sustainable construction.
    Aktivitet: Logistikdag2013Other (Other (popular science, discussion, etc.))
  • 21.
    Erikshammar, Jarkko
    Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Industrilized and sustainable construction.
    Aktivitet: Nordic Conference on Construction and Organisation2013Other (Other (popular science, discussion, etc.))
  • 22.
    Erikshammar, Jarkko
    Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Industrilized and sustainable construction.
    Aktivitet: Nordic Conference on Construction Economics and Organization2013Other (Other (popular science, discussion, etc.))
  • 23.
    Erikshammar, Jarkko
    Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Industrilized and sustainable construction.
    Aktivitet: Studentrekrytering Furuhed Kalix: Examen! Och sen då?2013Conference paper (Other (popular science, discussion, etc.))
    Abstract [sv]

    En personlig presentation om varför studenter ska välja LTU.

  • 24.
    Erikshammar, Jarkko
    Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Industrilized and sustainable construction.
    Aktivitet: Sustainable Wood Building Expo 20132013Other (Other (popular science, discussion, etc.))
  • 25.
    Erikshammar, Jarkko
    Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Structural and Construction Engineering.
    Characteristics of supply chain management in systems building and implications for small business2013In: Proceedings of the 7th Nordic Conference on Construction Economics and Organisation, Trondheim: Tapir Akademisk Forlag, 2013Conference paper (Refereed)
    Abstract [en]

    Supply Chain Management (SCM) is an important part of the production process in systems building. The loosely-coupled construction supply chains created by the involvement of many interdependent sub-contractors and suppliers destabilize the production process. Purchasing strategies, used by many construction companies, for controlling the supply chain may not be applicable to small and medium-sized (SME) systems building companies, because the relationship between the buyer and the suppliers is characterized by long-term supply chain relationships rather than short-term project incentives. In order to ensure the reliability of deliveries and product quality, supply strategy in the form of SCM is suggested. The position taken is that systems building SMEs could integrate their supply chain with their customers and suppliers, in order to reduce variation in deliveries. A re-analysis of multiple case study and previously published qualitative data has been performed with SCM characteristics as the unit of analysis. Implications are that systems building SMEs need to have a long-term integration perspective when using SCM. Furthermore, SMEs have limited capacity and capabilities so differences in the maturity of their ‘systems building thinking’ might hinder effective SCM. However, the results do not conclusively prove or disprove the idea that SCM can replace project-based purchasing as the supply strategy for systems building SMEs.

  • 26.
    Erikshammar, Jarkko
    et al.
    Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Structural and Construction Engineering.
    Lu, Weizhuo
    Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Structural and Construction Engineering.
    Stehn, Lars
    Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Structural and Construction Engineering.
    Olofsson, Thomas
    Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Structural and Construction Engineering.
    Discrete event simulation enhanced value stream mapping: an industrialized construction case study2013In: Lean Construction Journal, ISSN 1555-1369, E-ISSN 1555-1369, Vol. 10, p. 47-65Article in journal (Refereed)
    Abstract [en]

    Research Question/Hypothesis: Can a production process design framework created by integrating Value Stream Mapping (VSM) and Discrete Event Simulation (DES) be used to assess the production system performance, as predicted by a future state design of small and medium sized enterprises (SMEs) working in industrialized construction?Purpose: To explore a production process design framework in which VSM is used to identify doable improvements and DES provides analytical evaluation of them.Research Method: The demonstration was carried out at a Swedish SME industrialized construction component manufacturerFindings: VSM is unable to evaluate analytically the performance of the future state design. This inability leads to unnecessary implementation iterations. VSM assumes a deterministic model and cannot describe the dynamic behaviors of a system. The dynamic behavior of the construction processes will result in the future state design not performing as expected. However, by analytically evaluating the future state with DES helped the case company to implement a new production process design.Limitations: DES modeling is still time-consuming and needs skilled professionals, the cost of whom can be prohibitive for SMEs and demonstrated in one case study.Implications: The integration of DES and VSM provides a framework to evaluate and communicate the outcome, hence enhancing the application of VSM.Value for practitioners: A lean framework, which can be used, for industrialized construction processes especially by SMEs with very limited resources, to validate changes before implementing them.

  • 27. Erikshammar, Jarkko
    Vad är Lean?: En personlig reflektion2013Other (Other (popular science, discussion, etc.))
    Abstract [sv]

    Youtube presentation om min definition av Lean.

  • 28.
    Erikshammar, Jarkko
    et al.
    Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Structural and Construction Engineering.
    Wetterblad, Jakob
    LTU.
    Wallin, Johan
    LTU.
    Herder, Marcus
    LTU.
    Svensson, Thorbjörn
    LTU.
    Vendor managed inventory: a sawmills potential offering for builders merchants2013Report (Other academic)
    Abstract [en]

    Vendor managed inventory (VMI) is a frequently used method for and a widely discussed partnering initiatives for improving supply chain efficiency. VMI as a program has increased in popularity, especially in the grocery industry, where the supplier, reseller or distributor makes the main inventory replenishment decision for the consuming organization. The objective of implementing VMI programs is to decrease costs for inventory control and management, and create transparency; possibility to collaborative planning and replenishment and efficient consumer response. The theoretical framework presents the basics of VMI, what the effects are and what prerequisites for such a program demands. The theoretical framework is used for the model of analysis when analyzing the possibility to implement VMI from a sawmill perspective to one of their customer segments; builders merchants. This is a case study performed at a small and medium sized sawmill. The purpose of this study was to investigate the possibilities of theoretically implement VMI since the Swedish wood supply chain is in a need for new business models and services since the value refinement is too low. The current system for inventory management and replenishment is summarized and compared to a theoretical construction with VMI. The analysis shows total settlement days could increase with 50%. This has a positive effect on the net cash flow and the inventory turnover per year could almost double. Further does the relationship between Case Company and Builders merchant fulfill the requirements for implementing a VMI program, but there is reason to be aware of the potential pitfalls.

  • 29.
    Erikshammar, Jarkko
    Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Industrilized and sustainable construction.
    Activity: Framtid Teknikföretag!: BAC Jarkko Erikshammar, industridoktorand2012Conference paper (Other (popular science, discussion, etc.))
    Abstract [sv]

    En kort sammanfattning om arbetet som doktorand och BACs framtida strategi och behov av unga välutbildade människor

  • 30.
    Erikshammar, Jarkko
    Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Industrilized and sustainable construction.
    Aktivitet: Ansökt och beviljats medel för studieresa till utländska företag 14000 kr2012Other (Other (popular science, discussion, etc.))
  • 31.
    Erikshammar, Jarkko
    Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Industrilized and sustainable construction.
    Aktivitet: Byggforum i Luleå2012Other (Other (popular science, discussion, etc.))
  • 32.
    Erikshammar, Jarkko
    Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Industrilized and sustainable construction.
    Aktivitet: Handledning av examensarbete: Examensarbete, 30 hp, för Civilingenjörsexamen, Erik Alestig2012Other (Other (popular science, discussion, etc.))
    Abstract [sv]

    Handledning av examensrabetet: Utvecklad värdeflödesanalys för produktutveckling inom industriellt byggande : En fallstudie på BAC Såg och Hyvleri

  • 33.
    Erikshammar, Jarkko
    Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Industrilized and sustainable construction.
    Aktivitet: Kickoff Träbyggnad2012Other (Other (popular science, discussion, etc.))
  • 34.
    Erikshammar, Jarkko
    Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Industrilized and sustainable construction.
    Aktivitet: Lean IT2012Other (Other (popular science, discussion, etc.))
  • 35.
    Erikshammar, Jarkko
    Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Industrilized and sustainable construction.
    Aktivitet: LWE Workshop2012Other (Other (popular science, discussion, etc.))
  • 36.
    Erikshammar, Jarkko
    Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Industrilized and sustainable construction.
    Aktivitet: LWE Workshop 20122012Other (Other (popular science, discussion, etc.))
  • 37.
    Erikshammar, Jarkko
    Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Industrilized and sustainable construction.
    Aktivitet: Open Innovation Workshop2012Other (Other (popular science, discussion, etc.))
  • 38.
    Erikshammar, Jarkko
    Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Industrilized and sustainable construction.
    Aktivitet: Studentrekrytering Furuhed Kalix2012Conference paper (Other (popular science, discussion, etc.))
    Abstract [sv]

    En personlig presentation om varför studenter ska välja LTU.

  • 39.
    Erikshammar, Jarkko
    Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Industrilized and sustainable construction.
    Aktivitet: Utveckling genom strategisk samverkan och hållbart byggande2012Other (Other (popular science, discussion, etc.))
  • 40.
    Erikshammar, Jarkko
    Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Industrilized and sustainable construction.
    Aktivitet: Workshop2012Other (Other (popular science, discussion, etc.))
  • 41.
    Erikshammar, Jarkko
    Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Industrilized and sustainable construction.
    Aktivitet: Workshop med Bygglogistik från LIU2012Other (Other (popular science, discussion, etc.))
  • 42.
    Erikshammar, Jarkko
    Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Structural and Construction Engineering.
    Kortare tid på taket med prefabricerade takkomponenter2012In: Bygg & Teknik, ISSN 0281-658X, Vol. 104, no 4, p. 51-54Article in journal (Other (popular science, discussion, etc.))
    Abstract [sv]

    Det är få som idag projekterar fönster och dörrar, som inte är standardiserade produkter, i en byggnad. Samtidigt envisas aktörer i byggprocessen med att göra både arkitektritningar och konstruktionshandlingar på andra återkommande byggdelar för taket som borde kunna tillverkas som standardiserade produkter. Byggdelar såsom underlagstak, vindskivor och uppstigningslucka designas och konstrueras för varje projekt trots att de är i princip samma produkter. Samtidigt är det svårt för små entreprenörer och små leverantörer att utveckla attraktiva och standardiserade produkter som når acceptans inom byggindustrin. Genom att demonstrera ett produktutvecklingsprojekt mellan en litet sågverk, en underleverantör och en nationell byggentreprenör visar jag på hur aktörerna kan utveckla produkter tillsammans som reducerar tiden på taket, ökar lönsamheten och ökar säkerheten.

  • 43.
    Simonsson, Peter
    et al.
    Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Structural and Construction Engineering.
    Björnfot, Anders
    Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Structural and Construction Engineering.
    Erikshammar, Jarkko
    Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Structural and Construction Engineering.
    Olofsson, Thomas
    Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Structural and Construction Engineering.
    'Learning to see' the effects of improved workflow in civil engineering projects2012In: Lean Construction Journal, ISSN 1555-1369, E-ISSN 1555-1369, p. 35-48Article in journal (Refereed)
    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.

  • 44. Erikshammar, Jarkko
    Leverantörer som strategisk resurs för produktutveckling: LTU lic Jarkko Erikshammar berättar om hur LTU och BAC Såg & Hyvleri i samverkan bidrar till att lyfta nivån i byggandet.2012Other (Other (popular science, discussion, etc.))
    Abstract [sv]

    Inköp, som är en viktig del a tillverkningsprocessen inom industriellt byggande, är en av orsakerna till låg produktivitetsökning inom branschen. Traditionella inköpsstrategier, som används av större företag, är kanske inte tillämpbara för små och medelstora företag. Det har påvisats att dessa strategier inte är gynnsamma då relationen mellan köpare och leverantör karaktäriseras av kortsiktigt projekttänkande istället för långsiktiga relationer. För att säkerställa en låg process variation i form av säkra leveranser, tid och kvalitet, föreslås samverkan inom värdekedjan. Ståndpunkten är att små och medelstora företag inom industriellt byggande skulle kunna öka produktiviteten i värdekedjan genom att utveckla produkter tillsamman med sina kunder och leverantörer. Fallstudier har genomförts hos små och medelstora industriella byggare inom professionellt inköp i syfte att analysera gemensam produktutveckling. Produkter som studerats, både från ett kunds och från ett leverantörs perspektiv, har varierat från enkla till komplexa. Resultaten indikerar att aktörerna ser olika på värde. Värde är mångtydigt begrepp. Därför har process utveckling studerats med värdeflödesanalys och genom

  • 45.
    Erikshammar, Jarkko
    Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Structural and Construction Engineering.
    Näslund, Ida (Producer)
    Suppliers as a strategic asset for collaborative product development2012Other (Other (popular science, discussion, etc.))
    Abstract [sv]

    Populärvetenskaplig presentation av författarens LICCollaborative Product Development : a Purchasing Strategy for Small Industrialized House-building Companies.Speltid: 9 min 35 sek

  • 46.
    Erikshammar, Jarkko
    Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Structural and Construction Engineering.
    Viktiga frågor: En lite blogg i rymden om små viktiga frågor som hållbarhet, fattigdom och rättvisa.2012Other (Other (popular science, discussion, etc.))
  • 47.
    Erikshammar, Jarkko
    Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Industrilized and sustainable construction.
    Activity: Annual Conference of the International Group for Lean Construction, IGLC 192011Conference paper (Other (popular science, discussion, etc.))
  • 48.
    Erikshammar, Jarkko
    Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Industrilized and sustainable construction.
    Activity: Annual Conference of the International Group for Lean Construction, IGLC 192011Conference paper (Other (popular science, discussion, etc.))
  • 49.
    Erikshammar, Jarkko
    Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Industrilized and sustainable construction.
    Activity: Collaborative Product Development: a Purchasing Strategy for Small Industrialized House-building Companies: Licentiatseminarium2011Conference paper (Other (popular science, discussion, etc.))
    Abstract [sv]

    Offentlig redovisning av licantiatuppsats. Lic.examen Jarkko Erikshammar, Träbyggnad, 20 dec kl 14.00 i F1031. Opponent Erik Sandberg LiU, Institutionen för ekonomisk och industriell utveckling, 581 83 Linköping, www.iei.liu.se

  • 50.
    Erikshammar, Jarkko
    Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Industrilized and sustainable construction.
    Activity: LWE Research Days2011Conference paper (Other (popular science, discussion, etc.))
12 1 - 50 of 78
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