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Article

Seismic Performance Assessment of an Existing RC Wall Building with Irregular Geometry: A Case-Study of a Hospital in Croatia

1
Department of Engineering Mechanics, Faculty of Civil Engineering, University of Zagreb, 10000 Zagreb, Croatia
2
Department of Geophysics, Faculty of Science, University of Zagreb, 10000 Zagreb, Croatia
*
Author to whom correspondence should be addressed.
Appl. Sci. 2020, 10(16), 5578; https://doi.org/10.3390/app10165578
Received: 30 June 2020 / Revised: 1 August 2020 / Accepted: 7 August 2020 / Published: 12 August 2020
Buildings of strategic importance should be able to resist seismic forces in accordance with potential earthquakes that may occur at the location and remain fully operational afterwards. However, many of them were constructed before the modern principles of seismic design were known (especially regarding detailing and ductility), and therefore may be considered substandard. The first step in mitigating the seismic risk of such structures is to assess their seismic performance and, in particular, to identify their structural deficiencies. This study presents a comprehensive methodology for the seismic performance assessment of individual buildings, applied to an existing reinforced concrete (RC) hospital. This building is of an irregular layout, constructed as a structural wall system, and it is located in the seismically active region of Croatia. It includes the assessment of seismic hazards on the location, ambient noise measurements, experimental determination of structural modal parameters, creation of a detailed numerical model calibrated with experimental data, and a seismic performance assessment using various analysis methods. As a result, the building collapse mechanisms were determined and critical structural elements identified, which is the basis for future actions directed to the reduction of its risk (e.g., applications of specific measures for a target retrofit, proposal of evacuation routes and safe places inside the building, etc.). View Full-Text
Keywords: seismic hazard; experimental measurements; data monitoring; ambient vibrations; wall system; irregular layout; nonlinear modeling; pushover method; nonlinear time-history analysis seismic hazard; experimental measurements; data monitoring; ambient vibrations; wall system; irregular layout; nonlinear modeling; pushover method; nonlinear time-history analysis
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MDPI and ACS Style

Uros, M.; Prevolnik, S.; Savor Novak, M.; Atalic, J. Seismic Performance Assessment of an Existing RC Wall Building with Irregular Geometry: A Case-Study of a Hospital in Croatia. Appl. Sci. 2020, 10, 5578. https://doi.org/10.3390/app10165578

AMA Style

Uros M, Prevolnik S, Savor Novak M, Atalic J. Seismic Performance Assessment of an Existing RC Wall Building with Irregular Geometry: A Case-Study of a Hospital in Croatia. Applied Sciences. 2020; 10(16):5578. https://doi.org/10.3390/app10165578

Chicago/Turabian Style

Uros, Mario, Snjezan Prevolnik, Marta Savor Novak, and Josip Atalic. 2020. "Seismic Performance Assessment of an Existing RC Wall Building with Irregular Geometry: A Case-Study of a Hospital in Croatia" Applied Sciences 10, no. 16: 5578. https://doi.org/10.3390/app10165578

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