Deflection of cross-laminated timber shear walls for platform-type construction

Shahnewaz, Md; Popovski, Marjan; Tannert, Thomas

doi:10.1016/j.engstruct.2020.111091

Cited by 26 publications

(15 citation statements)

References 23 publications

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“…In the case (i) the wall has high width-to-height ratio, with width equal to plant dimension of the building and length corresponding to its inter-story height. In the case (ii) the wall is composed by narrow panels joined to each other by means of vertical step joints [21,37], and width-to-height ratios greater than 0.20 are advisable [31].…”

Section: Technologymentioning

confidence: 99%

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Sustainable Cross-Laminated Timber Structures in a Seismic Area: Overview and Future Trends

Sandoli¹,

D’Ambra²,

Ceraldi³

et al. 2021

Applied Sciences

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Cross-laminated timber (CLT) buildings are recognized as a robust alternative to heavyweight constructions, because beneficial for seismic resistance and environmental sustainability, more than other construction materials. The lightness of material and the satisfactory dissipative response of the mechanical connections provide an excellent seismic response to multi-story CLT buildings, in spite of permanent damage to timber panels in the connection zones. Basically, CLT constructions are highly sustainable structures from extraction of raw material, to manufacturing process, up to usage, disposal and recycling. With respect to other constructions, the potential of CLT buildings is that their environmental sustainability in the phases of disposal and/or recycling can be further enhanced if the seismic damage in structural timber components is reduced or nullified. This paper reports a state-of-the art overview on seismic performance and sustainability aspects of CLT buildings in seismic prone regions. Technological issues and modelling approaches for traditional CLT buildings currently proposed in literature are discussed, focusing the attention on some research advancements and future trends devoted to enhance seismic performance and environmental sustainability of CLT buildings in seismic prone regions.

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Section: Technologymentioning

confidence: 99%

“…[46,47]. Anyhow, a refined model to estimate the in-plane deflections for single and coupled CLT walls under horizontal loadings is presented in Shahnewaz et al [37], in which also the influence of orthogonal walls and floors has been taken into account.…”

Section: In-plane Modelingmentioning

confidence: 99%

Sustainable Cross-Laminated Timber Structures in a Seismic Area: Overview and Future Trends

Sandoli¹,

D’Ambra²,

Ceraldi³

et al. 2021

Applied Sciences

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“…Shahnewaz et al [10], presented closed-form equations to estimate the deflection of single and coupled CLT shear walls under lateral loading considering the influence of wall-to-wall and floor-to-wall connections. Parametric analyses showed that the presence of perpendicular wall reduces the deflections as a function of the stiffness of the connections.…”

Section: Effect Of Perpendicular Wallsmentioning

confidence: 99%

Influence of Perpendicular Walls on the Lateral Stiffness of CLT Shear Walls

Ruggeri¹,

D’Arenzo²,

Fossetti³

et al. 2021

Proceedings of the 8th International Conference on Computational Methods in Structural Dynamics and Earthquake Engineering (COM

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Cross-Laminated Timber (CLT) walls are used in CLT buildings to carry both vertical and horizontal loads. The mechanical behaviour of CLT shear walls for lateral loads is typically assumed to be governed from the base connections, which transfer the horizontal loads from the upper storeys to the foundations. However, in a CLT building, other connection typologies, such as the connection between shear walls and perpendicular walls, can contribute to the mechanical performances of the CLT shear walls. This paper presents a study on the effects of the perpendicular walls on the lateral stiffness of Cross-Laminated Timber shear walls. An analytical model for the calculation of the lateral stiffness of CLT shear walls connected at the base with typical hold-downs and angle brackets and to perpendicular walls by means of wall-to-wall connections is presented. The analytical model is compared with different models taken from the literature and validated against a numerical model developed in SAP2000. The analytical model is used to perform a parametric study in which the geometry and the connections are varied while different assumptions on the mechanical behaviour of the perpendicular walls are considered. Results of the parametric analyses showed that the perpendicular walls increase the lateral stiffness of CLT shear walls. The increase of lateral stiffness depends on the stiffness of the wall-to-wall connections, position and assumption on the behaviour of the perpendicular walls. Results of this study represent a basis for future studies in which the contribution of the perpendicular walls is investigated at building level. COMPDYN 2021 8 th ECCOMAS Thematic Conference on Computational Methods in Structural Dynamics and Earthquake Engineering M. Papadrakakis, M. Fragiadakis (eds.

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“…Early Adopters, sondern sind mittlerweile Teil der normalen Holzbaupraxis [5], auch in erdbebengefährdeten Regionen. Das häufigste System für BSP zur vertikalen Lastabtragung [6, 7] ist der Plattformbau, bei der die Geschossplatten als Plattform für die nächste Ebene dienen. Das neunstöckige Stadthaus [8] in London in England und das zwölfstöckige Origine [9] in Quebec City in Kanada sind nennenswerte Beispiele.…”

Section: Literaturübersichtunclassified

Untersuchungen zur Prävention von progressivem Kollaps von Holzhochhäusern

Tannert

Bita²,

Huber

2020

Bautechnik

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Ohne weiterführende Entwurfsüberlegungen zur strukturellen Robustheit von Gebäuden aus Holz kann das Versagen eines einzigen Bauteils zu einem progressiven und/oder unverhältnismäßigen Gebäudekollaps führen. Die bestehenden Anforderungen in den internationalen Richtlinien zur Prävention von progressivem Kollaps sind unwirtschaftlich für mehrstöckige Gebäude aus Brettsperrholzplatten (BSP) im Plattformbau. Dieser Beitrag fasst aktuelle Forschungsergebnisse zusammen, um die strukturelle Robustheit solcher Gebäude zu gewährleisten. Eine verbesserte Methode wird vorgestellt, um die Mindestanforderungen an Zugankerverbinder zu quantifizieren und um alternative Lastwege unter Verwendung vereinfachter linearelastischer Ansätze sicherzustellen. Es wird gezeigt, wie in einer nichtlinearen, sog. Pushdown‐Analyse eines Plattformhochhaussegments zur Charakterisierung der Widerstandsmechanismen vier verschiedene alternative Lastpfade ermittelt wurden. Danach wird anhand linearer dynamischer Analysen das Tragwerksverhalten bei Bauteilversagen eines zwölfstöckigen Hochhauses mit BSP‐Geschossplatten und Wandsystem und eines neunstöckigen Hochhauses mit BSP‐Geschossplatten und Brettschichtholzstützen untersucht. Die vorgestellten Ergebnisse tragen dazu bei, den Entwurf mehrstöckiger BSP‐Gebäude im Plattformbau zu verbessern.

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Deflection of cross-laminated timber shear walls for platform-type construction

Cited by 26 publications

References 23 publications

Sustainable Cross-Laminated Timber Structures in a Seismic Area: Overview and Future Trends

Sustainable Cross-Laminated Timber Structures in a Seismic Area: Overview and Future Trends

Influence of Perpendicular Walls on the Lateral Stiffness of CLT Shear Walls

Untersuchungen zur Prävention von progressivem Kollaps von Holzhochhäusern

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