SEISMIC RISK ASSESSMENT OF AN INSTRUMENTED REINFORCED CONCRETE BUILDING

2022-11
PAÇARIZI, FURKAN
The expected seismic performance of existing buildings during future earthquakes is always a concern for public administrations in pre- and post-earthquake planning as well as for general public. Seismic risk of these buildings, whether they will fulfill different performance-based design objectives when subjected to earthquake ground motions of different intensities, has to be evaluated. Such an evaluation for an existing building requires an accurate finite element model of the building. This study focuses on the first instrumented building in Turkey, for which the ambient and forced vibration test results are available to validate its finite element model. This reinforced concrete building is in close proximity to the North Anatolian Fault in Gerede, Bolu. Having survived the 1999 Mw 7.1 Duzce earthquake, the building was retrofitted in 2009 after the implementation of the 2007 Turkish Earthquake Code. The finite element models that incorporate the infill walls were developed for both the as-built and post-refrofit states of the building, and updated to reproduce the in-situ dynamic properties. Using these models, seismic risk assessments for both states of the building were performed according to the past and current building codes in Turkey. The demonstrated inadequate performance of the as-built building verified the need for the retrofit of the building. However, the post-retrofit building did not satisfy the performance objectives stated in the current building codes

Suggestions

Seismic Performance Assessment of Masonry Buildings Using In Situ Material Properties
Cobanoglu, Baran; ALDEMİR, ALPER; Demirel, Ismail Ozan; Binici, Barış; Canbay, Erdem; Yakut, Ahmet (American Society of Civil Engineers (ASCE), 2017-08-01)
Seismic performance assessment of existing buildings requires the existing material's properties to be determined as this has a significant influence on the seismic risk. As one of the most common construction type in Turkey, masonry buildings are assessed generally based on the recommended material properties specified in relevant codes as opposed to testing of samples taken from the existing buildings. However, due to different material types and workmanship quality, the specified properties might be quit...
Seismic collapse safety based optimization of steel Moment-Resisting frames
Gholizadeh, Saeed; Hasançebi, Oğuzhan; Eser, Hasan; Koçkaya, Okan (2022-11-01)
Structures must have a reasonable seismic safety margin in order to ensure life-safety as well as to prevent structural collapse caused by earthquakes. On the other hand, the cost-efficiency and economy of structures are important and integral parts of structural engineering. The main aim of the current study is to propose an efficient methodology for designing cost-efficient multi-story special steel moment-resisting frames at predefined levels of seismic collapse safety. To achieve this purpose, a seismic...
COLLAPSE FRAGILITY ANALYSIS OF REINFORCED CONCRETE TALL BUILDINGS
Budak, Erhan; Çelik, Ozan Cem; Sucuoğlu, Haluk; Department of Civil Engineering (2022-9-02)
Seismic performance of a 253 m tall reinforced concrete core wall building in Istanbul, designed according to performance-based seismic design principles, was assessed to determine the response parameters that control the serviceability, safety and collapse performance limit states. An ambient vibration test of the building was performed to identify its dynamic properties, including the damping properties for service loads. A three- dimensional linear elastic finite element structural model of the building ...
Forced Vibration Testing and Seismic Fragility Assessment of Instrumented Structures (FORAGAINST)
Çelik, Ozan Cem(2016-2-07)
The objectives of this proposed research are to perform forced vibration tests on the following reinforced concrete structures, which are permanently instrumented for recording their dynamic responses in the case of future earthquakes in Turkey: a four-story dormitory building in Bolu, a four-story office building in Istanbul, a five-story hospital building in Antakya, a three-story school building in Antakya, and a four-story university building in Izmir, and to derive seismic fragilities for these structu...
Seismic risk prioritization of residential buildings in Istanbul
Yakut, Ahmet; Sucuoğlu, Haluk (2012-09-01)
A large scale seismic risk prioritization study was conducted for medium-rise, gravity-designed reinforced concrete residential buildings in Istanbul. The implemented procedure was based on evaluating selected building parameters that could be easily observed or measured during a systematic sidewalk survey. The survey was actually conducted on approximately 100,000 buildings in the six subprovinces of Istanbul over the period 20042009 by a large team of trained surveyors. The collected data were processed t...
Citation Formats
F. PAÇARIZI, “SEISMIC RISK ASSESSMENT OF AN INSTRUMENTED REINFORCED CONCRETE BUILDING,” M.S. - Master of Science, Middle East Technical University, 2022.