@article {bnh-6698,
	title = {Suitability of Height Amplification Factors for Seismic Assessment of Existing Unreinforced Masonry Components},
	journal = {Journal of Earthquake Engineering},
	year = {2020},
	month = {01/2020},
	pages = {1-20},
	abstract = {<p>The suitability of {\textquoteleft}design{\textquoteright} height amplification factors (HAF) for the purpose of seismic assessment of existing non-structural unreinforced masonry (URM) components with known strength was evaluated through a numerical study. Four building typologies were included that represented pre-1940 URM construction in Australia and New Zealand. Through pushover and incremental dynamic analyses, the effects of diaphragm flexibility and nonlinear building response on floor accelerations were studied. It was found that Australia/New Zealand code procedures include significant inelastic building behaviour that reduces HAF. An interpretation was made on the applicability of the assumptions in the context of assessing non-structural URM components.</p>},
	keywords = {flexible diaphragms, height amplification factor, non-structural components, seismic input, unreinforced masonry},
	doi = {https://doi.org/10.1080/13632469.2020.1716889},
	url = {tandfonline.com/doi/full/10.1080/13632469.2020.1716889},
	author = {Hossein Derakhshan and Yasuto Nakamura and Michael Griffith and Jason Ingham}
}
@article {bnh-6336,
	title = {Seismic fragility assessment of nonstructural components in unreinforced clay brick masonry buildings},
	journal = {Earthquake Engineering and Structural Dynamics},
	year = {2019},
	month = {12/2019},
	abstract = {<p>The results of an investigation of the probability of earthquake damage to nonstructural unreinforced masonry (URM) components are presented. The components include parapets, chimneys, and out-of-plane loaded facades typical of low-rise pre-1940 construction in Australia and New Zealand. The study is based on a street survey of component geometry, in situ data on material strength, and simplified mechanical models. Uncertainties in capacity and demand were quantified based on, respectively, stochastic and deterministic approaches. The damage probabilities were compared with relevant guidelines and empirical damage data from three earthquakes. The study established a link between the qualitative damage states reported in existing guidelines and the quantitative URM component damage states. While some median damage state thresholds correlated well with the data from the guidelines, a larger dispersion value was found in the current study due to the large variations in component properties. Comparisons with empirical data suggest that the developed fragility data provide a realistic estimate of nonstructural component damage that occurred in similar buildings, with a reasonable level of conservatism. The outcome is useful in rapid assessment of the seismic risks due to nonstructural component collapse in URM precincts.</p>},
	keywords = {Damage, earthquake, seismic risk, unreinforced masonry},
	doi = { https://doi.org/10.1002/eqe.3238},
	url = {https://onlinelibrary.wiley.com/doi/pdf/10.1002/eqe.3238},
	author = {Hossein Derakhshan and Kevin Walsh and Jason Ingham and Michael Griffith and David Thambiratnam}
}
