The CEN‐TS “Structural Glass – Design and Construction Rules” as pre‐standard for the Eurocode

Feldmann, Markus; Biase, Pietro Di

doi:10.1002/cepa.911

Cited by 11 publications

(13 citation statements)

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“…Another relevant aspect, see Figure 16b, is associated to the combination of cumulative stress effects, for the design actions of interest. As also discussed in [60], the intrinsic advantage of linear cumulative approaches according to Equations (11), (13) or (14) can preserve in designers a deepest awareness on detailing and design assumptions, for safe purposes. The exponential formulation proposed in [59], otherwise, is generally sensitive to minimum variations in the input material properties, thus leading to possible uncertainties in design.…”

Section: Stress Verificationmentioning

confidence: 99%

“…The guide is not prescriptive but it actually represents one of the most detailed guides in support of glass designers, given the lack of specific regulations in the Italian Technical Standards for Constructions (NTC2018 [10]) or other exhaustive international standards [11,12]. In addition, several sections of the CNR guide are supporting the inprogress Eurocode 10 for glass structures, see Figure 4 and [4,13]. Among others, Section 4.4 of the CNR document specifically focuses on seismic design actions and general rules for safe design purposes of glass structures in earthquake prone regions.…”

Section: Basis Of Designmentioning

confidence: 99%

“…The existing design recommendations are thus commented, with a specific focus on the Italian scenario, where the CNR-DT 210/2013 technical document [9] represents an efficient tool in support of designers. While the guideline is not prescriptive, it provides a relevant input and background for the European scenario, filling some gaps of the NTC2018 Italian standard for constructions [10] as well as of the Eurocode 8 [8], towards the harmonization of international standards for structural glass (see for example [11,12]) and the development of a dedicated Eurocode [13]. Key definitions and steps for a seismic design approach are thus first recalled from [9,10].…”

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confidence: 99%

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Safety Issues in the Seismic Design of Secondary Frameless Glass Structures

Bedon

Amadio

Noè

2019

Safety

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Glass is largely used in buildings, in the form of an innovative and versatile material. Both for novel and existing constructions, secondary glass systems are frequently realized to interact with primary components of different materials. In most cases, the structural challenge deriving from the intrinsic brittleness and vulnerability of glass is efficiently controlled via laminated (LG) multi-layer sections. However, further potential risks for people should be properly minimized, like for example, in the presence of extreme loads. This is the case of seismic regions, where dedicated calculation methods are required to accommodate displacement and resistance demands, but design specifications are rarely provided by existing standards for earthquake resistant buildings. Even more attention is needed for frameless glass systems in which the bracing members (i.e., continuous frames, cable-nets, etc.,) are reduced to a minimum, in favour of metal point connections (i.e., bolts and mechanical fixings, friction clamps, etc.). This paper aims at discussing the current design requirements for the seismic performance assessment of these relatively simple but challenging structural solutions, with careful consideration for the Italian scenario, where a practical support for design can be found in the CNR-DT 210/2013 technical document. Based on a case-study system, major issues, open questions and uncertainties or critical aspects for the seismic analysis and design of secondary frameless glass assemblies are thus emphasized.

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Section: Stress Verificationmentioning

confidence: 99%

Section: Basis Of Designmentioning

confidence: 99%

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confidence: 99%

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Safety Issues in the Seismic Design of Secondary Frameless Glass Structures

Bedon

Amadio

Noè

2019

Safety

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“…Glass products are well covered by European norms. [12,13], Harmonised European norms for the comprehensive structural design of load-bearing glass elements are in preparation and should be presented to designers in 2021 [14][15][16]. Meanwhile, there are many national documents (technical regulations or technical guidelines) for verification of glass elements (see for example [17][18][19]).…”

Section: Of 24mentioning

confidence: 99%

Thermal and Energy-Efficiency Assessment of Novel Hybrid CLT-Glass Facade Elements

Rajčić¹,

Perković²,

Bedon³

et al. 2020

Preprint

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Facade elements are known to represent a building component with multiple performance parameters to satisfy. Among others, "advanced facades" take advantage of hybrid solutions, like the assemblage of laminated materials. In addition to enhanced mechanical properties that are typical of optimally composed hybrid structural components, these systems are energy-efficient, durable, and offer lightening comfort and optimal thermal performance. This is the case of the structural solution developed in joint research efforts of the University of Zagreb and the University of Ljubljana, within the Croatian Science Foundation VETROLIGNUM project. The design concept involves the mechanical interaction of timber and glass load-bearing members, without sealing or bonded glass-to-timber surfaces. Laminated glass infilled timber frames are recognized as a new generation of structural members with relevant load-carrying capacity (and especially the enhancement of earthquake resistance of framed systems), but also energy-efficient and cost-effective solutions. In this paper, a special focus is then dedicated to the thermal performance assessment of these innovative CLT-glass facade modules under ordinary operational conditions. Numerical modelling of a full-scale mock-up building is first presented, by taking advantage of continuous ambient records of environmental and thermal comfort parameters. Afterward, a more detailed Finite Element (FE) numerical analysis is carried out at the component level (CLT-glass facade element). The numerical results show that the even the use of a bare / thermally no optimized CLT-glass composite panel for facade systems can be energy efficient and offer stable thermal performances, that are almost in line with national and European standards requirements.

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“…On the other hand, glass has been also increasingly used in buildings over the last decade. While glass products are well covered by European standards [12,13], harmonised European standards for structural designs are still in preparation [14][15][16], and some design issues can be solved with the support of technical guidelines (see [17][18][19]). One of the most challenging issues for load-bearing glass elements is their thermal performance assessment and potential effect on mechanical parameters [20][21][22][23].…”

Section: Introductionmentioning

confidence: 99%

<strong>Thermal and Energy-Efficiency Assessment of Hybrid CLT–glass Façade Elements</strong>

Rajčić¹

2020

Preprint

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Façade elements are a building component that satisfies multiple performance parameters. Among other things, “advanced façades” take advantage of hybrid solutions, such as assembling laminated materials. In addition to the enhanced mechanical properties that are typical of optimally composed hybrid structural components, these systems are energy-efficient, durable, and offer lighting comfort and optimal thermal performance, an example of which is the structural solution developed in collaboration with the University of Zagreb and the University of Ljubljana within the Croatian Science Foundation VETROLIGNUM project. The design concept involves the mechanical interaction of timber and glass load-bearing members without sealing or bonding the glass-to-timber surfaces. Following earlier research efforts devoted to the structural analysis and optimization of thus-assembled hybrid Cross-Laminated Timber (CLT)-glass façade elements, in this paper, special focus is given to a thermal and energy performance investigation under ordinary operational conditions. A simplified numerical model representative of a full-size building is first presented by taking advantage of continuous ambient records from a Live-Lab mock-up facility in Zagreb. Afterwards, a more detailed Finite Element (FE) numerical analysis is carried out at the component level to further explore the potential of CLT–glass façade elements. The collected numerical results show that CLT–glass composite panels can offer stable and promising thermal performance for façades similar to national and European standard requirements.

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The CEN‐TS “Structural Glass – Design and Construction Rules” as pre‐standard for the Eurocode

Cited by 11 publications

References 0 publications

Safety Issues in the Seismic Design of Secondary Frameless Glass Structures

Safety Issues in the Seismic Design of Secondary Frameless Glass Structures

Thermal and Energy-Efficiency Assessment of Novel Hybrid CLT-Glass Facade Elements

<strong>Thermal and Energy-Efficiency Assessment of Hybrid CLT–glass Façade Elements</strong>

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The CEN‐TS “Structural Glass – Design and Construction Rules” as pre‐standard for the Eurocode

Cited by 11 publications

References 0 publications

Safety Issues in the Seismic Design of Secondary Frameless Glass Structures

Safety Issues in the Seismic Design of Secondary Frameless Glass Structures

Thermal and Energy-Efficiency Assessment of Novel Hybrid CLT-Glass Facade Elements

<strong>Thermal and Energy-Efficiency Assessment of Hybrid CLT&ndash;glass Fa&ccedil;ade Elements</strong>

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<strong>Thermal and Energy-Efficiency Assessment of Hybrid CLT–glass Façade Elements</strong>