نتایج جستجو برای: Vertical component of earthquake

تعداد نتایج: 21192051  

Journal: :مهندسی عمران فردوسی 0
مجید قلهکی محمدجواد ستاری

damages due to northridge and kobe earthquakes were expressive of considerable effects of vertical components of earthquakes compared to the horizontal ones. on the other hand, thin steel plate shear wall is one of the newest resistant systems which until now it`s behavior haven’t been investigated under vertical component of earthquake. therefore, in this article, effects of vertical component...

Journal: :journal of the structural engineering and geotechnics 0
maryam firoozi nezamabadi department of civil engineering, south tehran branch, islamic azad university, tehran, iran fariborz yaghoobi vayeghan department of civil engineering, pardis branch, islamic azad university, pardis, iran

field observations of the incurred damages to the buildings and bridges due to earthquakes in near field show there are various failure modes which are in relation to the forces caused by vertical component. while vertical component of earthquake for ordinary buildings in most seismic regulations and standards is not considered. therefore, in the current study the effects of vertical and horizo...

Journal: :journal of structural engineering and geo-techniques 2012
a delnavaz a rahaee

performance of structures during recent earthquakes shows that the effect of vertical component of earthquake (vce) could be considered as one of the main causes of bridges collapse. in most of bridge design codes, for seismic analysis of bridges, vce is not taken into account or a distinguished method isn’t presented for assessment of vce. in the present work, the effect of vce on two existing...

Journal: :journal of structural engineering and geo-techniques 2015
maryam firoozi nezamabadi fariborz yaghoobi vayeghan

field observations of the incurred damages to the buildings and bridges due to earthquakes in near field show there are various failure modes which are in relation to the forces caused by vertical component. while vertical component of earthquake for ordinary buildings in most seismic regulations and standards is not considered. therefore, in the current study the effects of vertical and horizo...

Fariborz Yaghoobi Vayeghan Maryam Firoozi Nezamabadi

Field observations of the incurred damages to the buildings and bridges due to earthquakes in near field show there are various failure modes which are in relation to the forces caused by vertical component. While vertical component of earthquake for ordinary buildings in most seismic regulations and standards is not considered. Therefore, in the current study the effects of vertical and horizo...

The main goal of preset research is investigate the effects of vertical component of Near-Fault and Far-Field earthquake records on the probability of overtopping induced damage of earth dam due to the reduction of freeboard due to the settlement of dam crest. In this respect 12 different earthquake record are selected. Nonlinear dynamic analysis of earth dam is implemented with FLAC 3D using F...

Journal: :journal of the structural engineering and geotechnics 0
maziar basirololoomi m. sc student, department of civil engineering, eslamshahr branch, islamic azad university, tehran, iran armin aziminejad assistant professor, department of civil engineering, science and research branch, islamic azad university, tehran, iran. fariman ranjbaran assistant professor, department of civil engineering, eslamshahr branch, islamic azad university, tehran, iran

moment-resisting frames have extensive usage in earthquake-prone areas and high ability in energy dissipation.after the earthquake in northridge 1994,kobe 1995 fixed connections of steel structures have shown poor performance and generally they were caught brittle fracture of beam flange weld to the column.in order to remedy to avoid similar situations in future earthquakes,researchers introduc...

Armin Aziminejad Fariman Ranjbaran Maziar Basirololoomi,

Moment-resisting frames have extensive usage in earthquake-prone areas and high ability in energy dissipation.After the earthquake in Northridge 1994,Kobe 1995 fixed connections of steel structures have shown poor performance and generally they were caught brittle fracture of beam flange weld to the column.In order to remedy to avoid similar situations in future earthquakes,researchers introduc...

Ali Delnavaz Ali ShiriTorkamani Hasan Aghabarati

In this study we tried to consider effect of vertical component of  near zone earthquake (10 to 15 km far from fault) such as Kobe 1995, Northridge 1994, Loma prieta 1989 and Chichi 1999 on a concrete cable bridge by a 320m span in the middle which was built on different type of soils. The SAP software (version14) was selected because I should have done linear and non-linear time history anal...

Journal: :فیزیک زمین و فضا 0
مجید معهود گروه ژئوفیزیک، دانشگاه آزاد اسلامی واحد علوم و تحقیقات تهران نفیسه اکبرزاده گروه ژئوفیزیک، دانشگاه آزاد اسلامی واحد علوم و تحقیقات، تهران حسین حمزه لو پژوهشگاه بین المللی زلزله شناسی و مهندسی زلزله، تهران

on 11th of august 2012 the region was surprisingly struck by a shallow mw 6.4 (usgs) earthquake with pure right-lateral strike-slip character only about 50 km north of the north-tabriz fault. an east-west striking surface rupture of about 20 km length was observed in the field by geological survey of iran. only 11 minutes later and about 6 km further nw a second shallow event with mw 6.2 occurr...

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