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Seismic fragility of plasterboard partitions via in-plane quasi-static tests

Petrone, C; Magliulo, G; Lopez, P; Manfredi, G; (2015) Seismic fragility of plasterboard partitions via in-plane quasi-static tests. Earthquake Engineering and Structural Dynamics , 44 (14) pp. 2589-2606. 10.1002/eqe.2600. Green open access

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Abstract

The seismic damage of internal partitions may cause significant earthquake loss; this phenomenon is caused by (a) their tendency to exhibit damage for low demand levels and (b) the consequent loss of inventory and breakdown that their collapse can cause. Quasi-static tests are performed on six 5-m-high plasterboard internal partitions, which represent typical partitions in industrial and commercial buildings in the European area. A steel test setup is designed to transfer the load, which is provided by the actuator, to the partition. The testing protocol provided by Federal Emergency Management Agency (FEMA) 461 is adopted for the quasi-static tests. The typical failure mode of the specimens is the buckling of a steel stud, which involves the boards that are attached to the buckled stud. The buckling failure usually concentrates across the plasterboard horizontal joints. A frictional behavior is exhibited for low demand levels, whereas a pinched behavior is shown for moderate-to-high demand levels. The interstory drift ratios required to reach a given damage limit state are evaluated using a predefined damage scheme. Based on the experimental data, the fragility curves for three different damage states (DS1, DS2, and DS3) are estimated. The fragility curve yields median interstory drift ratio values of 0.28%, 0.81%, and 2.05% and logarithmic standard deviations of 0.39, 0.42, and 0.46 for DS1, DS2, and DS3, respectively.

Type: Article
Title: Seismic fragility of plasterboard partitions via in-plane quasi-static tests
Open access status: An open access version is available from UCL Discovery
DOI: 10.1002/eqe.2600
Publisher version: http://dx.doi.org/10.1002/eqe.2600
Language: English
Additional information: This is the peer reviewed version of the following article: Petrone, C; Magliulo, G; Lopez, P; Manfredi, G; (2015) Seismic fragility of plasterboard partitions via in-plane quasi-static tests. Earthquake Engineering and Structural Dynamics , 44 (14) pp. 2589-2606, which has been published in final form at http://dx.doi.org/10.1002/eqe.2600. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Self-Archiving.
Keywords: nonstructural components; internal partitions; quasi-static test; testing protocol; seismicperformance; fragility curves
UCL classification: UCL > Provost and Vice Provost Offices
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Civil, Environ and Geomatic Eng
URI: https://discovery.ucl.ac.uk/id/eprint/1474486
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