Analytical Model for Sheathing-to-Framing Connections in Wood Shear Walls and Diaphragms

Abstract

A new analytical model for sheathing-to-framing connections in wood shear walls and diaphragms is discussed in this paper. The model represents sheathing-to-framing connections using an oriented pair of nonlinear springs. Unlike previous models, the new analytical model is suitable for both monotonic and cyclic analyses and does not need to be scaled or adjusted. Furthermore, the analytical model may be implemented in a general purpose finite element program, such as ABAQUS, or in a specialized structural analysis program, such as CASHEW. To illustrate, the responses of a 4.88ϫ 14.6 m plywood diaphragm and a 2.44ϫ 2.44 m oriented strand board shear wall are predicted using the new analytical model.

Coupled and uncoupled nonlinear elastic finite element models for monotonically loaded sheathing-to-framing joints in timber based shear walls

“…Their properties may be nonlinear and the model may introduce (nonlinear) single spring elements or spring pair elements, see [8].…”

“…Another modification of the spring pair model has been suggested by Judd and Fonseca [8]. They used an uncoupled spring pair model and oriented the model with respect to the initial displacement trajectory.…”

“…longitudinal and perpendicular to the grain, in such a model. Xu and Dolan [5] used the approximation suggested by Judd and Fonseca [8] to model shear walls subjected for cyclic loading. They used the same hysteretic model in the spring parallel to the initial trajectory as well as the spring perpendicular to the initial trajectory.…”

Load-sharing mechanism in timber-steel hybrid shear wall systems

“…To model the behavior of wood shear walls in a more versatile way, Xu and Dolan [16] modified the Bouc-Wen-Barer-Wen hysteresis model to represent wood shear walls and embedded the model in a commercially available software package ABAQUS through a user-defined element. An oriented spring pair model was also implemented in ABAQUS by Judd and Fonseca [17] to model nail connections in wood diaphragms and shear walls. These two models are both phenomenon-based, which means the loading and unloading paths of the model under hysteretic loads need to be defined explicitly.…”

Sostenibilidad y durabilidad de elementos estructurales superficiales en base madera : el caso del CLT

“…Ya que el CLT ha demostrado ampliamente su comportamiento frente al sismo (Ellis y Bougard, 2001;Reynolds et al, 2015), tanto desde el punto de vista de la construcción, como de sus componentes, ya sea con ensayos directos o con diferentes tipos de modelización (Lindt et al, 2011;Folz y Filiatrault, 2001;Filiatrault et al, 2009;Judd y Fonseca, 2005;Tomasi et al, 2015;He et al, 2001;Casagrande et al, 2016).…”