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Husson, Wylliam
Publications (7 of 7) Show all publications
Veljkovic, M., Heistermann, C., Husson, W., Limam, M., Feldmann, M., Naumes, J., . . . Kinnunen, H. (2012). High-strength tower in steel for wind turbines (Histwin): Final report (ed.). Paper presented at . Brussells: European Commission Joint Research Centre
Open this publication in new window or tab >>High-strength tower in steel for wind turbines (Histwin): Final report
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2012 (English)Report (Refereed)
Abstract [en]

Innovative solutions for assembling joints of a tubular tower for wind turbines were studied and the project provides a background for design. This solution is simpler to produce and 80 % less expensive than traditional flange connection. Our feasibility study at the production plant indicates that the towers would be easy to assemble in situ. In addition to the direct cost savings due to the technical simplicity of the solution, the higher fatigue endurance than that of the flange connection is experimentally established. Further reduction of costs due to optimal use of higher-strength steel grades, especially in the bottom segments of the tower where the stiffening of the door opening is costly, is shown in the report. The total reduction of the costs for tower is estimated at about 10–15 % compared to the traditional tower. The project objectives are achieved in following sequences. • Experimental activities of the friction connection: small-scale tests to establish resistance of the friction connection for a variety of faying surfaces and bolt types, accompanying testing to ensure realistic input data for FEA, long-term testing to establish loss of pretension forces during the lifetime and fatigue tests.• Bending test of the friction and flange connection in a down-scaled tower. • Feasibility of production of the tower segments in the laboratory and at the production plant. • Monitoring of the existing tower to access a stress variation during the operation. • FEA analysis of experimental results and a complete case study of the monitored tower. Numerical examples for design of the friction connection are given for the sake of illustration and to encourage use of the new connection

Place, publisher, year, edition, pages
Brussells: European Commission Joint Research Centre, 2012. p. 168
Series
EUR Scientific and Technical Research series
National Category
Building Technologies
Research subject
Steel Structures; Centre - Centre for High Performance Steel (CHS)
Identifiers
urn:nbn:se:ltu:diva-24782 (URN)10.2777/39656 (DOI)c7f1ba62-da45-495a-9a8f-0c4987713b77 (Local ID)978-92-79-22434-8 (ISBN)c7f1ba62-da45-495a-9a8f-0c4987713b77 (Archive number)c7f1ba62-da45-495a-9a8f-0c4987713b77 (OAI)
Note

Godkänd; 2012; 20120427 (milan)

Available from: 2016-09-29 Created: 2016-09-29 Last updated: 2019-03-29Bibliographically approved
Heistermann, C., Husson, W. & Veljkovic, M. (2009). Flange connection vs. friction connection in towers for wind turbines (ed.). In: (Ed.), Nordic Steel Construction Conference: Proceedings : September 2.-4., 2009, Malmö, Sweden. Paper presented at Nordic Steel Construction Conference : 02/09/2009 - 04/09/2009 (pp. 296-303). Stockholm: Stålbyggnadsinstitutet
Open this publication in new window or tab >>Flange connection vs. friction connection in towers for wind turbines
2009 (English)In: Nordic Steel Construction Conference: Proceedings : September 2.-4., 2009, Malmö, Sweden, Stockholm: Stålbyggnadsinstitutet , 2009, p. 296-303Conference paper, Published paper (Refereed)
Abstract [en]

The paper deals with connections used to assemble sections of tubular steel towers supporting wind turbines. The design of current ring flange connections is briefly presented. An alternative option for the assembling connection is to use single overlapping friction connection. This is introduced in on-going research project "HISTWIN- High-Strength Steel Tower for Wind Turbine, 2006-2009". The main characteristic of the friction connection is long open slotted holes. Design example for equivalent design load at ultimate load of the friction connection is compared to the flange solution on a particular example of REpower Tower MM92. The benefits of the new connection in terms of design simplicity, fatigue strength and material costs are discussed.

Place, publisher, year, edition, pages
Stockholm: Stålbyggnadsinstitutet, 2009
Series
Publikation / Stålbyggnadsinstitutet - SBI, ISSN 0348-0577 ; 181
National Category
Building Technologies
Research subject
Steel Structures; Centre - Centre for High Performance Steel (CHS)
Identifiers
urn:nbn:se:ltu:diva-28436 (URN)23a573b0-9ead-11de-a77c-000ea68e967b (Local ID)9789171270580 (ISBN)23a573b0-9ead-11de-a77c-000ea68e967b (Archive number)23a573b0-9ead-11de-a77c-000ea68e967b (OAI)
Conference
Nordic Steel Construction Conference : 02/09/2009 - 04/09/2009
Projects
High-strength steel tower for wind turbines
Note

Godkänd; 2009; 20120228 (ysko)

Available from: 2016-09-30 Created: 2016-09-30 Last updated: 2019-04-01Bibliographically approved
Husson, W. (2008). Friction connections with slotted holes for wind towers (ed.). (Licentiate dissertation). Paper presented at . Luleå: Luleå tekniska universitet
Open this publication in new window or tab >>Friction connections with slotted holes for wind towers
2008 (English)Licentiate thesis, comprehensive summary (Other academic)
Abstract [en]

In a constantly increasing and competitive market the efficiency of the whole wind power plant is an issue. The tubular steel towers supporting wind turbines account for about 15 to 20% of the total installation costs and their optimization may lead to substantial savings with regard to costs and use of material. One important aspect of the design is the connection between tower's sections. The currently used solution with bolted ring flanges is prone to low fatigue resistance which imposes limitations that can impair the overall efficiency. Improvement could be achieved by implementing friction connections. This idea is investigated and the principles of a new type of friction connection are presented. Long open slotted holes are used to facilitate assembly and the segments are clamped with Tension Control Bolts which can safely and easily be tightened from within the tower. In the first part, the behaviour of segment specimens is investigated experimentally by mean of static and long term tests as well as numerical analyses. Two types of surfaces are considered: ethyl silicate zinc rich paint and corroded weathering steel. The influence of hole's geometry as well as connection configuration are studied. Particular focus is given to the variations of bolt force and the slip resistance. In the second part, the resistance function of the tested connections is derived from statistical analysis according to Annex D of EN1990. The influence of environmental parameters and workmanship on the pretension achieved by TCBs is also investigated to provide recommendation on optimal handling and design pretension. Finally, a method is proposed to design friction connections for wind towers. It is compared to the design of current L flange connections. One example of a 80m-high tower is shown. It highlights the potential benefits of using friction connections as the design is made simpler and material costs savings of up to 80% could be achieved.

Place, publisher, year, edition, pages
Luleå: Luleå tekniska universitet, 2008
Series
Licentiate thesis / Luleå University of Technology, ISSN 1402-1757 ; 2008:45
National Category
Building Technologies
Research subject
Steel Structures
Identifiers
urn:nbn:se:ltu:diva-17866 (URN)5982a660-c064-11dd-875e-000ea68e967b (Local ID)5982a660-c064-11dd-875e-000ea68e967b (Archive number)5982a660-c064-11dd-875e-000ea68e967b (OAI)
Note
Godkänd; 2008; 20081202 (ysko)Available from: 2016-09-29 Created: 2016-09-29 Last updated: 2017-11-24Bibliographically approved
Husson, W. & Veljkovic, M. (2008). Innovative connections in tubular steel towers: experiments on segment specimens under static loading (ed.). In: (Ed.), Robert Ofner; Darko Beg; Josef Fink; Richard Greiner; Harald Unterweger (Ed.), Proceedings / Eurosteel 2008: 5th European Conference on Steel and Composite Structures - Research, Eurocodes, Practice - Graz, Austria, September 3 - 5, 2008. Paper presented at European Conference on Steel and Composite Structures : 03/09/2008 - 05/09/2008 (pp. 651-656). : European Convention for Constructional Steelwork, ECCS, A
Open this publication in new window or tab >>Innovative connections in tubular steel towers: experiments on segment specimens under static loading
2008 (English)In: Proceedings / Eurosteel 2008: 5th European Conference on Steel and Composite Structures - Research, Eurocodes, Practice - Graz, Austria, September 3 - 5, 2008 / [ed] Robert Ofner; Darko Beg; Josef Fink; Richard Greiner; Harald Unterweger, European Convention for Constructional Steelwork, ECCS , 2008, Vol. A, p. 651-656Conference paper, Published paper (Refereed)
Place, publisher, year, edition, pages
European Convention for Constructional Steelwork, ECCS, 2008
National Category
Building Technologies
Research subject
Steel Structures
Identifiers
urn:nbn:se:ltu:diva-39317 (URN)e00ae810-e174-11dd-8529-000ea68e967b (Local ID)92-0147-000-90 (ISBN)e00ae810-e174-11dd-8529-000ea68e967b (Archive number)e00ae810-e174-11dd-8529-000ea68e967b (OAI)
Conference
European Conference on Steel and Composite Structures : 03/09/2008 - 05/09/2008
Note
Godkänd; 2008; 20090113 (joreri)Available from: 2016-10-03 Created: 2016-10-03 Last updated: 2018-06-08Bibliographically approved
Husson, W. & Veljkovic, M. (2008). Performance of a high-strength friction grip connection with open slotted hole (ed.). In: (Ed.), (Ed.), Connections in Steel Structures VI: Proceedings of the 6th international workshop. Paper presented at Connections in Steel Structures : 28/11/2008 - 29/11/2008 (pp. 585-596).
Open this publication in new window or tab >>Performance of a high-strength friction grip connection with open slotted hole
2008 (English)In: Connections in Steel Structures VI: Proceedings of the 6th international workshop, 2008, p. 585-596Conference paper, Published paper (Refereed)
National Category
Building Technologies
Research subject
Steel Structures
Identifiers
urn:nbn:se:ltu:diva-37685 (URN)bc7d1580-e16a-11dd-8529-000ea68e967b (Local ID)bc7d1580-e16a-11dd-8529-000ea68e967b (Archive number)bc7d1580-e16a-11dd-8529-000ea68e967b (OAI)
Conference
Connections in Steel Structures : 28/11/2008 - 29/11/2008
Note
Godkänd; 2008; 20090113 (joreri)Available from: 2016-10-03 Created: 2016-10-03 Last updated: 2018-06-08Bibliographically approved
Husson, W. & Veljkovic, M. (2007). Behaviour of a friction connection using TCB in long slotted holes (ed.). In: (Ed.), (Ed.), Proceedings of the 9th International Conference on Steel, Space and Composite Structures: . Paper presented at International Conference on Steel, Space & Composite Structures : 10/10/2007 - 12/10/2007. Singapore: CI-Premier Pte Ltd
Open this publication in new window or tab >>Behaviour of a friction connection using TCB in long slotted holes
2007 (English)In: Proceedings of the 9th International Conference on Steel, Space and Composite Structures, Singapore: CI-Premier Pte Ltd, 2007Conference paper, Published paper (Refereed)
Abstract [en]

With constantly increasing demand for renewable energies the cost optimization of steel towers supporting multi-mega-watt wind turbines becomes important. Luleå University of Technology currently coordinate European research project (RFCS), including partners from 5 countries, which aim is to ensure the high competitiveness of the next generation of steel towers produced in Europe. One innovation investigated within this project is the use of friction grip connection with long slotted holes to connect the steel tower sections. This paper presents a part of ongoing experimental program and result of three segment tests performed with weathering steel plates and M20 Tension Control Bolts. Experimental results are compared to the prediction according to European structural code EN 1993-1-8 Furthermore a three dimensional numerical model was used to describe behaviour of the connection with a long slotted hole together and a thick cover plate FE-analysis of the preliminary experiments was used to endorse conclusions from the experiments.

Place, publisher, year, edition, pages
Singapore: CI-Premier Pte Ltd, 2007
National Category
Building Technologies
Research subject
Steel Structures
Identifiers
urn:nbn:se:ltu:diva-27705 (URN)13cb6710-7718-11dc-80da-000ea68e967b (Local ID)981-057589-0 (ISBN)13cb6710-7718-11dc-80da-000ea68e967b (Archive number)13cb6710-7718-11dc-80da-000ea68e967b (OAI)
Conference
International Conference on Steel, Space & Composite Structures : 10/10/2007 - 12/10/2007
Note
Godkänd; 2007; 20071010 (ysko)Available from: 2016-09-30 Created: 2016-09-30 Last updated: 2018-06-08Bibliographically approved
Nilsson, M., Husson, W., Collin, P., Veljkovic, M. & Petursson, H. (2007). Monitoring of a bridge with integral abutment (ed.). In: (Ed.), Ulrike Kuhlmann (Ed.), Improving Infrastructure Worldwide: IABSE symposium, Weimar 2007, [September 19 - 21, 2007] ; report. Paper presented at IABSE Symposium : 19/09/2007 - 21/09/2007. Zürich: International Association for Bridge and Structural Engineering
Open this publication in new window or tab >>Monitoring of a bridge with integral abutment
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2007 (English)In: Improving Infrastructure Worldwide: IABSE symposium, Weimar 2007, [September 19 - 21, 2007] ; report / [ed] Ulrike Kuhlmann, Zürich: International Association for Bridge and Structural Engineering, 2007Conference paper, Published paper (Refereed)
Abstract [en]

Preliminary results obtained from short term test-loading are used to illustrate possibilities of FEM used to calibrate complex interaction characteristics between a pile and soil in a bridge with integral abutments. The measurements are obtained during the winter season on the bridge over Ledån, Northern Sweden. The bridge is built in 2006 and used for long term monitoring within the international project supported by RFCS. The main objective of the on-going research project is to proposed recommendations for rational analysis and design of bridges with integral abutments.

Place, publisher, year, edition, pages
Zürich: International Association for Bridge and Structural Engineering, 2007
Series
IABSE Report ; 93
National Category
Infrastructure Engineering Building Technologies
Research subject
Structural Engineering; Steel Structures
Identifiers
urn:nbn:se:ltu:diva-39486 (URN)e4420420-7746-11dc-80da-000ea68e967b (Local ID)978-385748-116-1 (ISBN)e4420420-7746-11dc-80da-000ea68e967b (Archive number)e4420420-7746-11dc-80da-000ea68e967b (OAI)
Conference
IABSE Symposium : 19/09/2007 - 21/09/2007
Note
Godkänd; 2007; 20071010 (ysko)Available from: 2016-10-03 Created: 2016-10-03 Last updated: 2018-06-20Bibliographically approved

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