Response of Self-Centering Mass Plywood Panel Shear Walls

Soti, Rajendra; Sinha, Arijit; Morrell, Ian; Miyamoto, Byrne

doi:10.22382/wfs-2020-009

Cited by 7 publications

(2 citation statements)

References 19 publications

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“…A spine is a stiff and strong vertical element or portion of the structure that is designed to remain essentially elastic in every vibrational mode, thereby imposing a more uniform drift distribution with building height [2], [3], mitigating story mechanisms [4], [5], and enabling the designer to bypass potential geometric or mass irregularities [6]. If detailed properly and combined with supplemental energy dissipators, mass timber spines are capable of deforming well into the inelastic range during strong ground shaking with stable energy dissipation and, in some cases, lowdamage seismic performance [7]- [19].…”

Section: Introductionmentioning

confidence: 99%

Cyclic Testing and Numerical Modeling of a Three-Story Mass-Timber Building With a Pivoting Mass Ply Panel Spine and Buckling-Restrained Energy Dissipators

Araujo Rodriguez,

Simpson,

et al. 2023

World Conference on Timber Engineering (WCTE 2023)

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Mass timber panels are emerging as an innovative alternative for the design of elastic spines due to their high stiffness-and strength-to-weight ratio, among other factors. Recent research has shown that mass timber panels used in conjunction with steel energy dissipators are promising solutions for enhanced seismic performance. However, the available experimental data at the building scale is still minimal, which limits the understanding, adoption, and development of effective seismic design guidelines for these systems. This research addresses this gap through full-scale quasi-static cyclic testing of a three-story mass timber building. Lateral loads are transferred through Mass Ply Panel (MPP) diaphragms to an MPP spine with vertically-oriented unbonded steel buckling-restrained braces (BRBs) as energy dissipating boundary elements in the first story. The only elements designed to dissipate energy in the inelastic range are the BRBs. The building specimen achieved low-structural damage and enhanced-performance goals, being able to reach a 4% roof drift ratio with little loss of strength and stiffness. The proposed pivoting detail was effective in mitigating compressive damage at the wall toe. To support the experimental campaign and future design procedures, a high-fidelity numerical model of the building was developed using OpenSees.

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Section: Introductionmentioning

confidence: 99%

Cyclic Testing and Numerical Modeling of a Three-Story Mass-Timber Building With a Pivoting Mass Ply Panel Spine and Buckling-Restrained Energy Dissipators

Araujo Rodriguez,

Simpson,

et al. 2023

World Conference on Timber Engineering (WCTE 2023)

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“…MPP is a relatively new product, so there have been limited studies on mechanical properties and structural connection performance (Miyamoto et al 2020;Soti et al 2020Soti et al , 2021Dillard et al 2021;and Ho et al 2022). One of the knowledge gaps is the performance of MPP connections under exposure to elevated temperatures (thermal effect), which is important for both the design of new structures in terms of fire resistance and the rehabilitation of structures partially damaged by fire.…”

mentioning

confidence: 99%

Investigation of Thermal Effects on Nailed Connection of Mass Ply Panels

Ho¹,

Laughery²,

Sinha³

2022

Forest Products Journal

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Mass ply panels (MPP), a relatively new mass timber product, has been utilized in several construction projects as diaphragm and wall panels. Connection for MPP is a crucial structural component that requires a better understanding. This article presents an experimental investigation into elevated temperature exposure–driven property degradation of MPP nailed connections, which is important for both the design of new structures in terms of fire resistance and the rehabilitation of structures partially damaged by fire. One control group and 32 exposure groups, which were combinations of eight elevated temperatures and four exposure durations, were investigated. The failure modes and yield strength of the nailed connection were analyzed as a function of elevated temperature and exposure time and compared with the prediction from the National Design Specification and existing literature. The results show a decrease of up to 45 percent in initial stiffness and ultimate load; meanwhile, there was no statistical evidence for the change in yield load in the majority of testing groups. Two analytical models, namely, multilinear regression and first-order kinetics model, were proposed to model the degradation of initial stiffness and ultimate strength. The kinetics model provided a better prediction and suggested that the initial stiffness and ultimate strength of the nail connection degraded over time at rates depending on the exposure temperature.

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Structural Performance Characterization of Mass Plywood Panels

Soti

Sinha

2021

J. Mater. Civ. Eng.

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Response of Self-Centering Mass Plywood Panel Shear Walls

Cited by 7 publications

References 19 publications

Cyclic Testing and Numerical Modeling of a Three-Story Mass-Timber Building With a Pivoting Mass Ply Panel Spine and Buckling-Restrained Energy Dissipators

Cyclic Testing and Numerical Modeling of a Three-Story Mass-Timber Building With a Pivoting Mass Ply Panel Spine and Buckling-Restrained Energy Dissipators

Investigation of Thermal Effects on Nailed Connection of Mass Ply Panels

Structural Performance Characterization of Mass Plywood Panels

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