A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Experimental study on racking resistance of timber double-skin façade elements
https://orcid.org/0000-0002-6634-8873
Highlights We present research of innovative timber-glass double-skin facade elements (DSF). A full composite action of the DSF wall was evident when using structural adhesives. Significant relative displacements occurred when the flexible adhesive was used. Useful information on structural behaviour of DSF walls were received. The results demonstrate improved racking resistance and stiffness comparing with previously studied timber-glass walls.
Abstract The use of double-skin façade (DSF) is a quite new approach in building renovation process, complementing conventional renovation strategies. A double-skin facade is an envelope wall construction that consists of two transparent surfaces separated by a cavity and can essentially improve thermal and acoustic resistance of building envelope. Main double-skin wall components are usually composed of hardened external single glazing pane and internal three-layer insulation glass unit (IGU) which are rigidly bonded to the frame structure. Recently, many studies have analysed thermal and acoustic performance of DSF elements, but practically none in a sense of structural behaviour, especially in determination of racking resistance of such wall elements. Moreover, in terms of reduction of global warming potential, an eco-friendly timber frame instead of common used steel, aluminium or plastic frame is investigated in this analysis. The developed load-carrying real-size composite timber-glass DSF wall elements are subjected to experimental racking test using two different types of adhesives (polyurethane and epoxy) and consequent bonding type alternatives of connecting the internal three-layered thermal glazing to the timber frame. The obtained results for the maximal fracture force and racking stiffness are compared with previously tested prefabricated timber-glass wall elements using a single-skin three-layered thermal insulating glazing only. The results evidently demonstrate that this new approach of prefabricated load-bearing double-skin façade elements can essentially improve racking resistance and stiffness comparing with previously studied timber-glass wall elements and can thus be fully recommended especially in structural renovation process of old buildings. However, a lot of parameters still significantly effect racking resistance of such elements and thus have to be further numerically or parametrically investigated.
Experimental study on racking resistance of timber double-skin façade elements
https://orcid.org/0000-0002-6634-8873
Highlights We present research of innovative timber-glass double-skin facade elements (DSF). A full composite action of the DSF wall was evident when using structural adhesives. Significant relative displacements occurred when the flexible adhesive was used. Useful information on structural behaviour of DSF walls were received. The results demonstrate improved racking resistance and stiffness comparing with previously studied timber-glass walls.
Abstract The use of double-skin façade (DSF) is a quite new approach in building renovation process, complementing conventional renovation strategies. A double-skin facade is an envelope wall construction that consists of two transparent surfaces separated by a cavity and can essentially improve thermal and acoustic resistance of building envelope. Main double-skin wall components are usually composed of hardened external single glazing pane and internal three-layer insulation glass unit (IGU) which are rigidly bonded to the frame structure. Recently, many studies have analysed thermal and acoustic performance of DSF elements, but practically none in a sense of structural behaviour, especially in determination of racking resistance of such wall elements. Moreover, in terms of reduction of global warming potential, an eco-friendly timber frame instead of common used steel, aluminium or plastic frame is investigated in this analysis. The developed load-carrying real-size composite timber-glass DSF wall elements are subjected to experimental racking test using two different types of adhesives (polyurethane and epoxy) and consequent bonding type alternatives of connecting the internal three-layered thermal glazing to the timber frame. The obtained results for the maximal fracture force and racking stiffness are compared with previously tested prefabricated timber-glass wall elements using a single-skin three-layered thermal insulating glazing only. The results evidently demonstrate that this new approach of prefabricated load-bearing double-skin façade elements can essentially improve racking resistance and stiffness comparing with previously studied timber-glass wall elements and can thus be fully recommended especially in structural renovation process of old buildings. However, a lot of parameters still significantly effect racking resistance of such elements and thus have to be further numerically or parametrically investigated.
Experimental study on racking resistance of timber double-skin façade elements
https://orcid.org/0000-0002-6634-8873
Highlights We present research of innovative timber-glass double-skin facade elements (DSF). A full composite action of the DSF wall was evident when using structural adhesives. Significant relative displacements occurred when the flexible adhesive was used. Useful information on structural behaviour of DSF walls were received. The results demonstrate improved racking resistance and stiffness comparing with previously studied timber-glass walls.
Abstract The use of double-skin façade (DSF) is a quite new approach in building renovation process, complementing conventional renovation strategies. A double-skin facade is an envelope wall construction that consists of two transparent surfaces separated by a cavity and can essentially improve thermal and acoustic resistance of building envelope. Main double-skin wall components are usually composed of hardened external single glazing pane and internal three-layer insulation glass unit (IGU) which are rigidly bonded to the frame structure. Recently, many studies have analysed thermal and acoustic performance of DSF elements, but practically none in a sense of structural behaviour, especially in determination of racking resistance of such wall elements. Moreover, in terms of reduction of global warming potential, an eco-friendly timber frame instead of common used steel, aluminium or plastic frame is investigated in this analysis. The developed load-carrying real-size composite timber-glass DSF wall elements are subjected to experimental racking test using two different types of adhesives (polyurethane and epoxy) and consequent bonding type alternatives of connecting the internal three-layered thermal glazing to the timber frame. The obtained results for the maximal fracture force and racking stiffness are compared with previously tested prefabricated timber-glass wall elements using a single-skin three-layered thermal insulating glazing only. The results evidently demonstrate that this new approach of prefabricated load-bearing double-skin façade elements can essentially improve racking resistance and stiffness comparing with previously studied timber-glass wall elements and can thus be fully recommended especially in structural renovation process of old buildings. However, a lot of parameters still significantly effect racking resistance of such elements and thus have to be further numerically or parametrically investigated.
Experimental study on racking resistance of timber double-skin façade elements
Premrov, Miroslav (author) / Štrukelj, Andrej (author) / Ber, Boštjan (author)
Engineering Structures ; 293
2023-07-30
Article (Journal)
Electronic Resource
English
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