TY - GEN
T1 - Investigation of seismic performance of timber shear walls with spray-applied polyurethane foam
AU - Dodge, Darius
AU - Chadwell, Charles
PY - 2008
Y1 - 2008
N2 - 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.
AB - 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.
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M3 - Conference contribution
AN - SCOPUS:70349394921
SN - 9780784410165
T3 - Proceedings of the 2008 Structures Congress - Structures Congress 2008: Crossing the Borders
BT - Proceedings of the 2008 Structures Congress - Structures Congress 2008
T2 - 2008 Structures Congress - Structures Congress 2008: Crossing the Borders
Y2 - 24 April 2008 through 26 April 2008
ER -