Role of perpendicular to grain compression properties on the seismic behaviour of CLT walls

Sandoli, Antonio; D’Ambra, Claudio; Ceraldi, Carla; Calderoni, Bruno; Prota, Andrea

doi:10.1016/j.jobe.2020.101889

Cited by 12 publications

(22 citation statements)

References 23 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…It consists of reduction of a multi-layer to a single-layer section by means of the coefficient k 3 and k 4 (as a function of longitudinal or transversal direction of the panel) listed in Table 2. A further simplification of the HIM method has been introduced in [49,50] that consists of reducing Young's modulus of raw material as a function of the effective number of layers (Table 2). Moreover, in the second method also tangential elastic modulus is suggested to reduces as a function of the effective number of layers, as for Young's modulus.…”

Section: In-plane Modelingmentioning

confidence: 99%

“…A further study recently developed in [50] proposes a theoretical model which includes both orthogonal to grain compression strength (f c,90 ) and orthogonal to grain Young' modulus for timber to timber contact (while E 90 and f c,90 are changed with E 0 and f c,0 in the case of timber to concrete contact at the foundation) (Figure 9c). A parabola-rectangular stress (σ c,90 )-strain (ε c,90 ) model has been proposed (using the relationships proposed by Eurocode 2 for the concrete) to model the compressed timber in orthogonal to grain direction.…”

Section: Connection Modelingmentioning

confidence: 99%

“…In fact, it has been proved that, in the case of perforated walls, a stress concentration in the corners at the interfaces between lintels and vertical panels can arise. Such stresses can be higher than the design strength values of material and lead to local brittle failure of the material in the corner region due to tension or compression [23,50,68]. Furthermore, also in case of segmented walls having lintels connected by means of metal fasteners to the adjiacent vertical panels, brittle failure modes due to stresses concentration in the corners can precede the ductile mechanisms of the connections [20].…”

Section: Vertical Wallsmentioning

confidence: 99%

“…According to literature, uniaxial or biaxial behavior is generally considered to simulate the connections [23,46,50,[75][76][77]. In the first case, HDs and ABs resist only in their primary direction (e.g., HDs only in tension and ABs only in shear), in the second case both HDs and ABs resist axial and shear forces simultaneously.…”

Section: Mechanical Connectionsmentioning

confidence: 99%

“…To obtain more realistic analytical results, the contribution of the compressed timber should be included in the structural model. Thus, additional no-tension truss or spring elements devoted to simulate the timber to timber contact have been introduced in the structural model developed in references [50,64,75].…”

Section: Mechanical Connectionsmentioning

confidence: 99%

See 4 more Smart Citations

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

Sandoli¹,

D’Ambra²,

Ceraldi³

et al. 2021

Applied Sciences

View full text Add to dashboard Cite

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.

show abstract

Section: In-plane Modelingmentioning

confidence: 99%

Section: Connection Modelingmentioning

confidence: 99%

Section: Vertical Wallsmentioning

confidence: 99%

Section: Mechanical Connectionsmentioning

confidence: 99%

Section: Mechanical Connectionsmentioning

confidence: 99%

See 3 more Smart Citations

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

Sandoli¹,

D’Ambra²,

Ceraldi³

et al. 2021

Applied Sciences

View full text Add to dashboard Cite

show abstract

Evaluation of the bonding process and interlaminar shear properties of hybrid cross-laminated timber prepared with larch and OSB

Li,

Ren

2023

Eur. J. Wood Prod.

View full text Add to dashboard Cite

This study explores the application of oriented strand board (OSB) to hybrid cross-laminated timber (HCLT). OSB and larch were used to prepare hybrid forms of HCLT for annlysis. Firstly, the effect of OSB surface treatment on the properties of the bonding line between materials was studied, including the surface properties of OSB before and after surface treatment. Block shear testing and cyclic delamination testing were used to study the bonding properties. The test results showed that suitable sanding can enhance the bonding performance. The optimal surface treatment process for OSB in this paper was found to be sanding at 0.2 mm depth. Secondly two layups of HCLT were prepared by combining OSB with larch, and the interlaminar shear strength was assessed in both the major and minor strength directions using a three-point bending test. The results showed that, due to the low density and mechanical properties of OSB, its application in HCLT as perpendicular layer is not a favorable choice, because it can not avoid the rolling shear failure in perpendicular layer, and it also reduces the interlaminar shear strength of HCLT in the minor strength direction. However, the interlaminar shear strength decreases in both the major and minor strength directions when OSB was used as the parallel layer, and larch was used as the perpendicular layer. Consequently, this improved the two-way carrying capacity of the HCLT plate.

show abstract

The Italian instructions for the design, execution and control of timber constructions (CNR-DT 206 R1/2018)

Faggiano

Sandoli

Iovane

et al. 2022

Engineering Structures

View full text Add to dashboard Cite

Role of perpendicular to grain compression properties on the seismic behaviour of CLT walls

Cited by 12 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

Evaluation of the bonding process and interlaminar shear properties of hybrid cross-laminated timber prepared with larch and OSB

The Italian instructions for the design, execution and control of timber constructions (CNR-DT 206 R1/2018)

Contact Info

Product

Resources

About