Investigation into diaphragm flexibility using shear wall

The diaphragm stiffness has a significant influence on the structural responses. Typically engineers assume those diaphragm are rigid. This assumption decreases the degree of freedom and provides easier analysis. But diaphragm damages in past earthquakes, due to its flexibility, have attracted resea...

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Bibliographic Details
Published inGrađevinar (Zagreb) Vol. 66; no. 9; pp. 831 - 836
Main Authors Ahmadi, Mohammad, Bakar, Suhaimi Abu, Abbas, Hajer Satih
Format Journal Article
LanguageEnglish
Croatian
Published Croatian Association of Civil Engineers 01.09.2014
Subjects
Degrees of freedom
Diaphragms
Earthquakes
Flexibility
Mathematical analysis
Optimization
Seismic phenomena
Shear walls
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Summary:The diaphragm stiffness has a significant influence on the structural responses. Typically engineers assume those diaphragm are rigid. This assumption decreases the degree of freedom and provides easier analysis. But diaphragm damages in past earthquakes, due to its flexibility, have attracted researchers toward the diaphragm behaviour. In orderto investigate this behaviour, in this study single storey RC structure was considered (four frame models using ETABS2000 and LUSAS) to calculate optimum ratio between diaphragm deflection and storey displacement The diaphragm ratio with lower0.5 should be considered as rigid.Original Abstract: Krutost stropne ploce ima znacajan utjecaj na odgovor konstrukcije. Uobicajenaje pretpostavka da se radi o krutom elementu. Ovakva pretpostavka smanjuje stupanj slobode i osigurava laksu analizu. No, tijekom posljednjih potresa, popustljivost stropne ploce privukla je znatizelju znanstvenika. Kako bi se istrazilo njeno ponasanje, u ovom radu analizirana je jednokatna armiranobetonska konstrukcija. Analizaje provedena na cetiri okvirne konstrukcije, a primjenom racunalnih programa ETABS2000 i LUSAS je izracunat optimalni omjer izmedu popustljivosti stropne ploce i pomaka konstrukcije. Analiza je pokazala da se kod omjera manjeg od 0,5 stropne ploce mogu razmatrati kao kruti element.
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ISSN:0350-2465
1333-9095
DOI:10.14256/JCE.1049.2014