Seismic behavior of innovative hybrid CLT-steel shear wall for mid-rise buildings

Carrero, Tulio; Montano, J. W.; Berwart, Sebastián; María, Hernán Santa; Guindos, Pablo

doi:10.1007/s10518-021-01204-y

Cited by 9 publications

(5 citation statements)

References 22 publications

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“…CLT shear walls are one of the most effective structural systems because of their high strength and in-plane stiffness. CLT shear walls and hybrid structures, such as combined CLT shear walls and steel moment frames have been proposed in the past [1][2][3][4][5]. CLT shear walls are characterised by their rocking behaviour, and the performance of the joints at the ends has a significant impact on the behaviour of the entire CLT shear wall performance [6].…”

Section: Introduction 567mentioning

confidence: 99%

Cyclic Load Tests and Numerical Analysis of CLT Shear Walls With Gir Joints

Uesugi

Kadono

Murakami

et al. 2023

World Conference on Timber Engineering (WCTE 2023)

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Four CLT shear wall specimens with GIR joints were subject to cyclic loading. The tensile anchor preyielding type specimens exhibited great performance and non-slip response because the M24 ABR steel anchors connected to the GIR joints contributed to resisting in compression. A numerical model using OpenSees was developed to simulate the global response and confirm the energy absorption. A crack was confirmed in one of the specimens before the GIR exhibited its ultimate strength. It is presumed that edge clearance distance may affect CLT shear walls performance for large deformations. The analysis model results are in good agreement with the experimental testing. Finally, the energy absorbed by the tensile bars on the compression side have been quantified.

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Section: Introduction 567mentioning

confidence: 99%

Cyclic Load Tests and Numerical Analysis of CLT Shear Walls With Gir Joints

Uesugi

Kadono

Murakami

et al. 2023

World Conference on Timber Engineering (WCTE 2023)

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“…Cross-laminated timber (CLT) is a prefabricated multi-layered engineer wood product, manufactured using at least three pieces of parallel boards by gluing their surfaces together using adhesives (FPInnovations Institute, 2013;Pečnik et al, 2021). Due to its cross-lamination technique, this type exhibits substantially better dimensional stability in comparison to solid wood, and offers high in-plane stiffness and strength when placed as a vertical wall element in mid-rise buildings (Carrero et al, 2021). CLT systems provide not only a high level of prefabrication and flexibility in planning, which reduces hence total cost of projects [FPInnovations (Institute), 2013].…”

Section: Introductionmentioning

confidence: 99%

The wall–frame interaction effect in CLT-steel hybrid systems

Vogiatzis

Tsalkatidis

Efthymiou

2022

Front. Built Environ.

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Behaviour and capacity of cross-laminated timber (CLT) infills built inside steel frames have been given increasing research attention in recent years. It is widely accepted that when the CLT wall panel is built in tight contact with the bounding steel frame to participate in the load sharing, its inherently large in-plane stiffness will attract additional forces to the frame area and change the behaviour of the hybrid system. If not designed properly, the structural integrity of both the infill and the frame will be compromised. It is thus crucial to accurately evaluate the contribution of the infill CLT wall panel to the stiffness and strength of the hybrid system. To that end, a finite element study was performed to investigate the frame-wall interaction effect on the behaviour of hybrid systems. The lateral stiffness, lateral load capacities and hysteretic characteristics of the hybrid systems with frictional and connected interfaces were investigated. The load-sharing effect between the CLT wall and the steel frame was studied. The numerical results showed that the connected models were very effective as the infill absorbed a substantial part of the lateral load, during the initial stages of loading.

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“…Research investigating how light-frame wood shear walls systems may be scaled to provide e cient solutions for taller buildings has been very scarce. Some examples of such attempt include the introduction of the mid-ply shear wall (Ranger L., and Dagenais C., 2021) and a new hybrid shear wall solutions using Frame Panel Shear Walls (FPSW) (Carrero et al, 2021) The review of the available literature highlights the needs for innovation beyond traditional shear wall systems such as CLT and LFTW while using the simple and workable concepts found in these systems. The current research study aims at investigating a new timber hybrid shear wall concept that would provide a cost-competitive alternative that is capable of being easily industrialized (Guindos et al 2019).…”

Section: Introductionmentioning

confidence: 99%

“…The full-scale wall test result was compared to published data obtained from the literature, as shown in Fig.15. These include a strong hybrid hollow steel framing and CLT sheathing shear wall, FPSW(Carrero et al, 2021), a common CLT wall(Popovski et al, 2011), and a strong lightframe timber wall, LFTW wall(Guíñez et al, 2019).…”

mentioning

confidence: 99%

“…that the deformation in the wall mainly occurred in fastener slip at the top beam.A comparison between the hysteresis envelopes, equivalent viscous damping (EVD), energy dissipation (ED), stiffness degradation and strength degradation from conventional LFTW wall(Guíñez et al, 2019), CLT Wall(Popovski et al, 2011), FPSW(Carrero et al, 2021) and the proposed WPSW concept is presented in Fig.18. As shown in Fig.18, WPSW exhibits an excellent lateral force capacity, stiffness, energy dissipation, and equivalent viscous damping relative to the other walls.…”

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confidence: 99%

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New Glulam-Framed Shear Wall Concept with Enhanced Behaviour Characteristics for Tall Timber Buildings in Seismic Areas.

Carrero

Montano

Perez

et al. 2022

Preprint

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This investigation covers the lateral performance of a new concept of hybrid timber shear wall, and includes individual connection testing, full-scale shear wall testing and numerical modeling. The main objective of this study is to develop enhanced timber structural solutions that facilitates the design and construction of mid-rise timber buildings in areas with high seismic demand. The new shear wall concept involves structural configurations similar to those found in conventional light-framed timber shear wall, but using glulam members as framing elements, connected to OSB sheathing panels using conventional nails. More specifically, the OSB sheathing is embedded within grooved glulam members in order to enhance the lateral capacity and stiffness of the wall. Connections and full-scale monotonic and cyclic shear wall testing were performed, and the results indicated that it is possible to obtain a high performing timber shear wall with the proposed concept. In particular, the obtained values are promising with strength and stiffness levels that are 3 times that of a conventional CLT shear wall. Furthermore, the proposed prototype comprises 0,89 m3 of wood volume, which represents less than one-fourth of the amount of wood in a CLT shear wall of equivalent lateral capacity. In addition, the ductility obtained for the proposed concept can be classified as high ductility class (HDC) according to the Eurocode 8. It is expected that the ductility may be further improved by limiting potential brittle failure observed in of one of the framing members at high displacement levels. Finally, it was found that available modelling tools with hysteretic models, such as the MSTEW, is capable of predicting the lateral strength and stiffness of the proposed concept, since modeling errors below 10% were obtained.

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Seismic behavior of innovative hybrid CLT-steel shear wall for mid-rise buildings

Cited by 9 publications

References 22 publications

Cyclic Load Tests and Numerical Analysis of CLT Shear Walls With Gir Joints

Cyclic Load Tests and Numerical Analysis of CLT Shear Walls With Gir Joints

The wall–frame interaction effect in CLT-steel hybrid systems

New Glulam-Framed Shear Wall Concept with Enhanced Behaviour Characteristics for Tall Timber Buildings in Seismic Areas.

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