Investigation of seismic performance of timber shear walls with spray-applied polyurethane foam

Darius Dodge, Charles Chadwell

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

An experimental and analytical investigation was conducted to determine the seismic performance of timber structures with the application of spray-applied infill polyurethane foam (SPF). Full-scale timber shear walls were constructed and tested using the CUREE-Caltech pseudo-static loading protocol (Krawinkler et al, 2003) and results were used to calibrate a computer based simulation model. Nonlinear time-history analyses of one- and two-story structures over a range of building weights were conducted with ground motion suites of varying hazard levels. It was shown with experimental testing that there is as much as a 30% increase in peak post-yield strength with application of SPF. Computer based simulations suggest that with the application of SPF to standard timber shear walls there is both a reduction in drift demand (up to 40%) as well as ductility demand. However, this benefit is indirectly dependent on number of stories (one or two), building weights, building periods, and ground motion severity.

Original languageEnglish (US)
Title of host publicationProceedings of the 2008 Structures Congress - Structures Congress 2008
Subtitle of host publicationCrossing the Borders
StatePublished - 2008
Externally publishedYes
Event2008 Structures Congress - Structures Congress 2008: Crossing the Borders - Vancouver, BC, Canada
Duration: Apr 24 2008Apr 26 2008

Publication series

NameProceedings of the 2008 Structures Congress - Structures Congress 2008: Crossing the Borders
Volume314

Conference

Conference2008 Structures Congress - Structures Congress 2008: Crossing the Borders
Country/TerritoryCanada
CityVancouver, BC
Period4/24/084/26/08

ASJC Scopus subject areas

  • Building and Construction

Fingerprint

Dive into the research topics of 'Investigation of seismic performance of timber shear walls with spray-applied polyurethane foam'. Together they form a unique fingerprint.

Cite this