Numerical modelling of CLT diaphragms tested on a shake-table experiment

Barbosa, Andre R.; Rodrigues, Leonardo; Sinha, Arjit; Higgins, Christopher; Zimmerman, Reid B.; Breneman, Scott; Pei, Shiling; van de Lindt, John; Berman, Jeffrey; McDonnell, Eric; Branco, Jorge M.; Neves, Luis C.

Authors

Andre R. Barbosa

Leonardo Rodrigues

Arjit Sinha

Christopher Higgins

Reid B. Zimmerman

Scott Breneman

Shiling Pei

John van de Lindt

Jeffrey Berman

Eric McDonnell

Jorge M. Branco

LUIS ARMANDO CANHOTO NEVES Luis.Neves@nottingham.ac.uk
Associate Professor

Abstract

Current standards and existing literature provide very limited information regarding the design of cross-laminated timber (CLT) floor diaphragms. In addition, limited procedures exist to develop analytical models to estimate the deformation response of CLT floor diaphragms. This paper presents a modelling approach that captures the response of CLT timber diaphragms, with a special focus on CLT spline panel-to-panel connections. The modeling approach is validated through the comparison of the results of the computation model with experimental data obtained from a series of shake-tables test performed on a two-story full-scale building tested in the summer of 2017 at UC San Diego Large High Performance Outdoor Shake Table. The two-story building included two diaphragm designs at each floor level. The first solution consists of CLT panels connected with plywood surface splines that are fastened using self-tapping screws, while the second consists of a CLT-concrete composite floor solution. Results from the nonlinear pushover analysis describe accurately the experimental data obtained.

Citation

Barbosa, A. R., Rodrigues, L., Sinha, A., Higgins, C., Zimmerman, R. B., Breneman, S., …Neves, L. C. (2018). Numerical modelling of CLT diaphragms tested on a shake-table experiment.

Conference Name	2018 World Conference on Timber Engineering (WCTE 2018)
Start Date	Aug 20, 2018
End Date	Aug 23, 2018
Acceptance Date	Jun 8, 2018
Publication Date	Aug 21, 2018
Deposit Date	Feb 27, 2019
Publicly Available Date	Feb 27, 2019
Keywords	CLT; Diaphragms; Seismic response; Numerical modelling; Shake table
Public URL	https://nottingham-repository.worktribe.com/output/1588914
Related Public URLs	http://wcte2018.kr/home/