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Title: Prototyping a passively self-centering cross-laminated timber rocking wall system: analytical and experimental investigation

Source: Wood Design Focus. 28(2): 23-39.

Author(s)Lo Ricco, Marco ; Ghorbanpoor, Al , Dr..; Pei, Shiling , Dr..; Rammer, Doug ; Begel, Marshall; Bridwell, James , J..; Zimmerman, Reid B.

Publication Year: 2018  View PDF »

Category: Journal Articles

Abstract: Cross-Laminated Timber (CLT) garners international interest with increasingly taller wood structures built of robust, rigid panels. For seismic resilience of multistory platform construction, this study prototypes a CLT rocking wall system with an elliptical boundary profile. Curvilinear cuts to the load-bearing edges of a rectangular CLT panel produce smoother lateral response to earthquakes, with gravity-driven passive re-centering ability and reduced crushing damage at wall corners. Stiffness and ductility of the rocking wall can be tuned by proportioning the ellipse profile. Connections between the rocking wall and diaphragm can be designed to transfer shear and influence rocking behavior. This paper presents the design and full scale cyclic testing performance of a prototype CLT rocking wall with two different types of connections. Hysteresis plots of the test results and idealized analytical models show good agreement between design assumptions and actual properties of the pendulum rocking wall system.

Keywords: Cross-laminated timber; seismic resiliency; rocking walls; rolling inverted pendulum; slip-friction inverted pendulum

Publication Review Process: Formally Refereed

File size: 4,096 kb(s)

Date posted: 12/02/2019

This publication is also viewable on Treesearch:  view
RITS Product ID: 96644
Current FPL Scientist associated with this product
Rammer, Douglas R.
Research General Engineer
  

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