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| 2. |
- Flansbjer, Mathias, et al.
(författare)
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Structural Concept of Novel RPC Sandwich Façade Elements with GFRP Connectors
- 2016
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Ingår i: IABSE Congress Stockholm 2016. - : IABSE c/o ETH Hönggerberg. - 9783857481444 ; , s. 2164-2171
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Konferensbidrag (refereegranskat)abstract
- The SESBE research project aims to develop novel smart sandwich façade elements with high insulating capabilities while providing a reduced thickness in conjunction with superior mechanical and durability properties. The present paper mainly focuses on the verification of the mechanical performance of the glass fibre reinforced polymer (GFRP) connectors in the façade element composed of reactive powder concrete (RPC) panels with foam concrete insulation between them. Because of the reduced thickness of the large façade elements, the performance of the connectors is critical for the entire structural concept. A description of structural performance and results based on experimental methods and finite element (FE) analysis are presented.
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| 3. |
- Flansbjer, Mathias, et al.
(författare)
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Strutural performance of GFRP connectors in Composite sandwich facade elements
- 2016
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Ingår i: Journal of Facade Design and Engineering. - 2213-302X .- 2213-3038. ; 4:1-2, s. 35-52
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Tidskriftsartikel (refereegranskat)abstract
- A systematic testing and modelling program has been developed for the verification of the structural performance of facade sandwich elements to take structural aspects into consideration in the SESBE research project, focusing on the development of “smart” facade elements.The present paper mainly focuses on the verification of the mechanical performance of the glass fibre reinforced polymer (GFRP) connectors of the novel type of facade element composed of reactive powder concrete (RPC) panels with foam concrete insulation between them. Because of the reduced thickness of the large facade elements, the performance of the connectors is critical for the entire structural concept. The first series of the testing and modelling programme concerning connector performance are presented here. The results suggest that sufficient strength and ductility of the connectors can be ensured using GFRP in the proposed thin light-weight facade elements.
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| 4. |
- Mara, Valbona, 1986, et al.
(författare)
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Techniques of off-site fabrication and on-site assembly of new bridges
- 2013
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Rapport (övrigt vetenskapligt/konstnärligt)abstract
- This report presents deliverable D4.18 defined as ‘Techniques for off-site fabrication and on-site assembly of new bridges’, which is a result from Work package 4, Task 4.2.The main aim of the PANTURA project is to "improve highly flexible off-site production and construction processes, create resource-efficient construction sites with minimum carbon emissions, improve technol- ogies and tools for bridge construction in densely populated areas and enhance communication between local authorities and construction companies.” With regard to this main aim, the goal of this report is to develop technologies for construction of new bridges in densely populated areas that enable total con- struction time reduction by at least 20%. To reach this goal, interest is focused on fast on-site assembly with regard to the connections between bridge elements, such as fibre reinforced polymer (FRP) decks and steel girders.Firstly, an extensive literature review about industrialized construction methods is conducted. The practi- cal problems involved mainly during assembly are brought up and new assembly techniques involving fibre reinforced polymer materials are proposed. The new assembly techniques are developed by transfer- ring knowledge from other sectors for potential use in construction with an emphasis on design for manu- facturing and assembly. These techniques are evaluated taking into account the voice of the customer. After evaluation, the promising techniques are further studied by advanced numerical analyses. Laborato- ry testing is performed on one potential connection between FRP bridge deck panels and it is found that this connection is sufficiently stiff and strong for use in bridges, and it enables immediate assembly. The potential use of this technique is demonstrated in one case study bridge, Koninginne bridge located in Rotterdam, the Netherlands. Design recommendations for the FRP-steel composite bridges are devel- oped. In addition, a life-cycle assessment and life-cycle cost analysis is performed to determine the cost efficiency and environmental impact of the new proposed solutions compared with traditional bridge con- struction methods.The participating partners in WP4/Task 4.2 and in the preparation of this deliverable are CTH (Sweden), ACC (Spain), MOS (Poland), AIC (Italy) and TRV (Sweden). The work in this report has been carried out from January 2011 to December 2013.
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| 5. |
- Williams Portal, Natalie, 1986, et al.
(författare)
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Bending behaviour of novel Textile Reinforced Concrete-foamed concrete (TRC-FC) sandwich elements
- 2017
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Ingår i: Composite Structures. - : Elsevier BV. - 0263-8223 .- 1879-1085. ; 177, s. 104-118
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Tidskriftsartikel (refereegranskat)abstract
- A novel sandwich element design consisting of two facings made of carbon reinforced Textile Reinforced Concrete (TRC), a low density foamed concrete (FC) core and glass fibre reinforced polymer (GFRP) connecting devices was experimentally investigated according to quasi-static and cyclic quasi-static four-point bending. Optical measurements based on Digital Image Correlation (DIC) were taken during testing to enable a detailed analysis of the bending behaviour and level of composite action. A model, verified by the experiments, was developed based on non-linear finite element analysis (NLFEA) to gain further insight on the failure mechanisms. Under both loading conditions, the bending behaviour of the TRC-FC composite elements was characterized by favourable load bearing capacity, partial composite action, superior ductility and multiple fine cracking. The connecting devices were found to be the critical elements causing the initial failure mechanism in the form of localized pull-out within an element.
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| 6. |
- Williams Portal, Natalie, et al.
(författare)
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GFRP connectors in textile reinforced concrete sandwich elements
- 2016
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Ingår i: IABSE Congress Stockholm 2016. - : IABSE c/o ETH Hönggerberg. - 9783857481444 ; , s. 1336-1343
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Konferensbidrag (refereegranskat)abstract
- In this paper, both experimental and numerical methods are presented to gain an understanding of the structural behaviour related to a TRC sandwich panel with a glass fibre reinforced polymer (GFRP) plate connection system. Double shear tests were conducted on component-scale sandwich panels to characterize the available shear capacity provided by the connectors and panel configuration. Three-dimension (3D) non-linear Finite Element Analysis (NLFEA) was applied to develop a model for the design of TRC sandwich panels while focusing on the connectors. The experimental outcome of the shear tests was applied to validate the corresponding numerical model developed in this work. The need for further modifications to the design of the shear connectors or other parameters such as panel thickness can be established accordingly. This developed FE model can essentially be applied as a design tool to further predict the structural behaviour of the full-scale sandwich elements.
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