| 1. |
- Andrade, Pedro, et al.
(författare)
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Innovative system for the construction and management of student resisdences : Frameup system
- 2016
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Ingår i: IABSE CONGRESS, STOCKHOLM, 2016. - CH - 8093 Zürich, Switzerland : International Association for Bridge and Structural Engineering. - 9783857481444 ; , s. 1364-1370
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Konferensbidrag (refereegranskat)abstract
- Sweden has a strong demand on the construction of student accommodations and consequently significant efforts have been taken to increase and streamline construction methods. In addition, the fluctuation on the number of students admitted at each year, in each university, lead to periods of house shortage or, in opposition to that, to eventual surplus on the housing market. For these reasons urges finding a fast execution process in construction to fulfil the market needs, together with a housing mechanism of control which balances the students’ needs with the housing availability. In this sense, the Frameup system arises as a solution to solve both problems by combining a modular construction with an innovative execution process.The FRAMEUP buildings uses a steel frame in combination with prefabricated 3D modules - fully equipped and suitable for student accommodations – which are assembled by starting from the roof to the 1st floor. The existence of the lifting system permits the erection of the building, promoting each time the building is lifted, a clearance of one-floor-height, at ground level, for the assembly of a new floor. The procedure is repeated several times, according to the number of floors, until the 1st floor of the building, the last floor of the execution sequence, is assembled.Alongside with its advantage on the fast execution, the Frameup system allows to efficiently increase or decrease the number of the floors and consequently its exchangeability with other buildings of same nature. Thus, assuming a net of FRAMEUP buildings at each university, its exchangeability system would create the necessary conditions so that the number of floors at each campus would follow the fluctuations of the students’ population among the different universities on different periods of time, so to suppress the needs for housing or to avoid the surplus on construction.
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| 2. |
- Andrade, Pedro, et al.
(författare)
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On global and local buckling response of structural angle sandwich panels
- 2022
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Ingår i: Thin-walled structures. - : Elsevier. - 0263-8231 .- 1879-3223. ; 180
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Tidskriftsartikel (refereegranskat)abstract
- Having in mind the topic of industrialised construction and the benefits of modular construction, sandwich panels are investigated to be utilised as load-bearing wall elements. To assess its full potential, the present paper tackles the linear elastic buckling response of axially loaded angle sandwich panels, by means of numerical and analytical calculations, as the upper bound of its load bearing capacity. The failures modes are obtained and framed for concentrically loaded angle panels with fixed and pin-ended supports. A parametric study of the angle panel comprising a series of finite element models is undertaken where responses are compared with analytical calculations based on the theory of sandwich panels. Boundaries for local and global buckling are identified and framed.
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| 3. |
- Andrade, Pedro, et al.
(författare)
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Structural assessment of a column splice with opened slotted holes : Finger Connection
- 2017
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Ingår i: ce/papers. - : Ernst & Sohn Verlag. - 2509-7075. ; 1:2-3, s. 514-521
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Tidskriftsartikel (refereegranskat)abstract
- This paper introduces a novel joint based on a friction connection designed for column-splices. The jointwas developed within the scope of modular construction to improve the fast assembly of prefabricatedframes and to accommodate eventual misalignments. Gaps at the connection are considered on the jointhorizontal and vertical axis to accommodate misalignments whether they are rotations and/ordisplacements and so to allow for the easy fit of the columns. The efficiency of the joint resistance basedon different connection gaps subjected to uniform compression is assessed.
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| 4. |
- Bröchner, Jan, 1948, et al.
(författare)
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From ideas to construction innovations: firms and universities collaborating
- 2016
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Ingår i: Construction Economics and Building. - 2204-9029. ; 16:1, s. 76-89
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Tidskriftsartikel (refereegranskat)abstract
- The purpose here is to study patterns of project collaboration found in one government supported programme for construction innovation. Preferred types of interaction were identified using data from two questionnaire surveys, one with experienced construction sector respondents and one aimed at construction researchers. All sixteen development projects within the Swedish Bygginnovationen programme were investigated, relying on documents and a survey of project managers. Important types of interaction, according to construction respondents, are informal contacts, joint research projects and staff mobility. For university respondents, informal contacts is also seen as the most important type of interaction, followed by MSc thesis work in firms and industrial PhD candidates. Grant applicants from manufacturing depended more on university laboratories and were less sensitive to firm/university distance. Laboratory use was also more frequent for projects relying on the field of materials engineering. In conclusion, there is a consensus about which types of collaboration are valuable. The broadness of participation in the programme, ranging over many industries, both as to origin of ideas and ultimate applications, reaches beyond narrow interpretations of the construction industry. Policy makers should recognize the innovation importance of university laboratory facilities and field testing, rather than seeing researchers as sources of ideas.
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| 5. |
- Bröchner, Jan, 1948, et al.
(författare)
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Från idé till affär: Framgångsrika innovationsprocesser inom samhällsbyggandet
- 2017
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Rapport (övrigt vetenskapligt/konstnärligt)abstract
- The purpose has been to identify conditions essential for innovative ideas to be developed into commercial products, services and processes within the field of the built environment. The analysis of projects awarded innovation grants within the Bygginnovationen programme has been intended to emphasize the possibilities for firms to select strategies for initiating and exploiting innovative ideas.Innovation and planning grants for 87 projects through Bygginnovationen were listed and analysed. A workshop with construction sector experts made an in-depth study of documentation related to five representative projects. Results were used for designing a questionnaire sent to 76 grant recipients. Analysis of the 62 responses included reasons for projects not having been commercialized at the time of the survey and also recipient views on the advice given by the Bygginnovationen Business Council.Applicant firms were found to belong to a broad range of industries. Firms that had successfully commercialized their ideas were slightly younger and had slightly more employees than those who had not (yet) been able to reach the market. One fifth of all supported project ideas had been commercialized, and for most of the remaining projects, development was still going on. The greatest obstacle to commercialization appears to be complexity of the project idea, followed by insufficient market size. Advice given by the Bygginnovationen Business Council was often seen by applicants as helpful, and a frequent consequence was that projects were strengthened by supplementary competences.
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| 6. |
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| 7. |
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| 8. |
- Collin, Peter, et al.
(författare)
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In memoriam - Bernt Johansson
- 2018
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Ingår i: Steel Construction. - : Ernst & Sohn Verlag. - 1867-0520 .- 1867-0539. ; 11:4, s. 315-315
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Tidskriftsartikel (övrigt vetenskapligt/konstnärligt)
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| 9. |
- Collin, Peter, et al.
(författare)
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Professor Bernt Johansson and LTU : Development of Steel Structures in northern Sweden
- 2024
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Rapport (refereegranskat)abstract
- Bernt Johansson, born in Stockholm in 1942. earned his MSc in Civil Engineering from the Royal Institute of Technology in 1961. He worked as a consultant engineer and continued his studies and presented his PhD thesis in 1976 on the stability of box-girder beams. In 1985 he was recruited to Luleå University of Technology to start research on steel structures. He initiated work with thin-walled structures, high strength steel and composite structures collaborating with industry. He played a pivotal role in the development of Swedish and European design codes. He supervised many master’s, licentiate, and PhD students. He passed away in 2017
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| 10. |
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