Evaluation of the main parameters affecting seismic performance of the RC buildings

Özmen, Hayri Baytan; İnel, Mehmet; Meral, Emrah

doi:10.1007/s12046-014-0235-8

Cited by 23 publications

(9 citation statements)

References 6 publications

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“…The height of a building can influence its seismic performance. Generally speaking, low-hight buildings are considered seismically less vulnerable [45]. Two types of height ranges are considered in this latest RVS procedure of FEMA: 1-3 stories and more than 3 stories; however, the modification score for building height is applicable only if a building is located on the soil type E. Building height does not greatly influence seismic performance, and therefore its score modifier is applicable only to soft soil (type E).…”

Section: Building Heightmentioning

confidence: 99%

Seismic vulnerability assessment of building stock of Malakand (Pakistan) using FEMA P-154 method

et al. 2019

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Earthquakes have caused huge infrastructural damages along with loss of lives in the recent past. Continuous subduction of the Indian plate beneath the Eurasian plate has made Pakistan a seismically active region in the world. Malakand, located in the Khyber Pakhtunkhwa Province of Pakistan, is declared at high earthquake risk by the National Disaster Management Authority of Pakistan, warranting a seismic vulnerability assessment study for its existing building stock. Vulnerability assessment of a representative sample of different building use-types was carried out using the rapid visual screening (RVS) procedure of FEMA P-154. The sample size was calculated based on Yamane formula. RVS sheets are used to calculate structural scores, and likely seismogenic damage is depicted as a function of damage grades of European Macro Seismic Scale. Of the building stock inspected, it was observed that almost half of the buildings fall in damage grade 4 and 5, implying a strong probability of heavy structural and non-structural damages in the case of future earthquake occurrence. Government school buildings were found to be less vulnerable than private counterparts. Most of the commercial buildings were not constructed according to building code, making them highly susceptible to damage. Based on the results of vulnerability assessment of building structures, the article recommends implementation of building codes which can lead to a decrease in infrastructural damages and economic losses in the wake of a future seismic event.

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Section: Building Heightmentioning

confidence: 99%

Seismic vulnerability assessment of building stock of Malakand (Pakistan) using FEMA P-154 method

et al. 2019

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“…Za gredu je primijenjen i zahtjev u pogledu minimalne širine. Usvojena je visina u iznosu od 50 cm, što je prema [35,36] uobičajena vrijednost koja se koristi u praksi. Kako je presjek grede obično konstantan, te kako se u analizama uzimala u obzir samo krutost zidane ispune (neubrojivši krutost praznog okvira), u matrici analize korišteni su isti presjeci i za stupove i za grede.…”

Section: Slika 1 Izgled Modela Bez Deformacija (Gore) I S Deformacijunclassified

“…Poznato je da se rasponi u nekoj građevini mogu međusobno bitno razlikovati. Prema radovima koje su prikazali Hancilar i dr. [35] i Ozmen i dr. [36], rasponi mogu po duljini varirati od 3,0 metra do 8,0 metara. Stoga je za analizu metodom konačnih elemenata odabrano šest različitih ravninskih armiranobetonskih okvira, kao što je prikazano u tablici 2.…”

Section: Matrica Analizeunclassified

Utjecaj otvora na krutost ispunjenih okvira

2015

JCE

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Utjecaj otvora na krutost ispunjenih okviraPoznata je činjenica da se krutost i nosivost okvira povećava ugradnjom zidanih ispuna bez otvora. U ovom se radu analizira ponašanje djelomično ispunjenih armiranobetonskih okvira, pri čemu se u obzir uzimaju dimenzije i lokacije otvora. Provedena je numerička parametarska analiza ispunjenih armiranobetonskih okvira, s naglaskom na dimenzije ziđa te na dimenzije i lokacije otvora. Za procjenu reducirane krutosti ekvivalentne tlačne dijagonale u radu je dan odgovarajući analitički izraz.Ključne riječi: zidana ispuna, armiranobetonski okvir, procjena reducirane krutosti, koeficijent otvora, lokacija otvora Professional paper Fatih Cetisli Effect of openings on infilled frame stiffnessIt is widely known that the stiffness and strength of frames increases by incorporation of masonry infill panels without openings. The behaviour of partly infilled reinforcedconcrete frames is analysed, taking into account dimensions and locations of openings. A numerical parametric study of infilled reinforced-concrete frames is conducted, with an emphasis on wall dimensions, and dimensions and locations of openings. An appropriate analytical expression is presented for estimating the reduced stiffness of an equivalent diagonal compression strut.

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“…As aforementioned, there are many studies using AVM methods to evaluate building dynamic characteristics in the literature. However, as the regional construction practices affect the building properties, the reported values from different regions are important to enrich the current literature [27]. Additionally, it is stated in the literature that in situ measurement of full-scale partially damaged structures is of considerable interest [3].…”

Section: Introductionmentioning

confidence: 99%

Determination of Period of RC Buildings by the Ambient Vibration Method

İnel

Özmen

Cayci

2019

Advances in Civil Engineering

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Determining the dynamic properties of structures is important for understanding their seismic behaviour. Ambient vibration signal measurement is one of the approaches used to determine the period of structures. Advantages of this method include the possibility of taking real-time records and presenting nondestructive and rapid solutions. In this study, natural vibration periods are calculated by taking ambient vibration signal records from 40 buildings. The height of the building, infill wall effect, presence of seismic retrofit, and presence of damage are taken into consideration, and their effects on natural vibration periods are investigated. Moreover, the results are compared with the analytical methods to reveal the differences. A significant correlation between the period and height of the building is observed. It is seen that the natural vibration periods of the buildings decrease by 7% to 30% (15% on average) due to infill wall contribution. However, the efficiency of infill walls decreases as the building height increases. Another significant result is that adding shear walls substantially decreases the vibration period values by 23% to 33% with respect to the shear wall ratio. When the analytical estimates and measured building period results are compared, it is seen that analytical models have closer period estimates before infill walls are implemented. The limited data in scope of the study suggest that significant differences may present in the analytical and measured periods of the buildings due to infill wall contributions.

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Evaluation of the main parameters affecting seismic performance of the RC buildings

Cited by 23 publications

References 6 publications

Seismic vulnerability assessment of building stock of Malakand (Pakistan) using FEMA P-154 method

Seismic vulnerability assessment of building stock of Malakand (Pakistan) using FEMA P-154 method

Utjecaj otvora na krutost ispunjenih okvira

Determination of Period of RC Buildings by the Ambient Vibration Method

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