نتایج جستجو برای: seismic hazard

تعداد نتایج: 99418  

Journal: :Open journal of earthquake research 2021

West Africa is considered a region of low seismicity. However, the monitoring earthquake activity by local seismic arrays began very early (as as 1914) in but catalogs are incomplete. In 1991, Bertil studied seismicity based on networks stations Ivory Coast and neighboring countries. The reference work Ambraseys Adams well recent earthquakes given international data centres were also used for c...

ژورنال: :علوم و مهندسی زلزله 0
مصطفی علامه زاده پژوهشگاه بین المللی زلزله شناسی و مهندسی زلزله رسول مظلوم پژوهشگاه بین المللی زلزله شناسی و مهندسی زلزله

پیشرفتهای موجود در روشهای تحلیل پیش یابی زلزله ها، امکان ارزیابی مکانهای پر خطر لرزه ای را با دقت زیاد توسط رو شهای تحلیل گرافی به وجود آورده اند. مطالعات نشان می دهد که علاوه بر شکل گیری خوشه های پر خطر لرزه ای، زمین شبکه ای پیچیده از زیرخوشه های متصل به هم قبل از یک زمین لرزه بزرگ را فراهم می آورد. در این تحقیق، برای مطالعه و شناسایی خوشه های پر خطر زلزله های آینده از معیاری مبتنی بر کاپولا ا...

Fragility curves represent the probabilities that structural damages, under various levels of seismic excitation, will exceed the specified damage states by means of earthquake intensity damage relations. Conceptual aspects related to seismic vulnerability, damage and risk evaluation are discussed first, together with a short review of the most widely used possibilities for the seismic evaluati...

Journal: :civil engineering infrastructures journal 0
gholamreza abdollahzadeh associate professor, faculty of civil engineering, babol university of technology mohammad sazjini ph.d. student, faculty of civil engineering, babol university of technology azadossadate asghari ph.d. student, faculty of civil engineering, babol university of technology

fragility curves represent the probabilities that structural damages, under various levels of seismic excitation, will exceed the specified damage states by means of earthquake intensity damage relations. conceptual aspects related to seismic vulnerability, damage and risk evaluation are discussed first, together with a short review of the most widely used possibilities for the seismic evaluati...

Journal: :Journal of Structural and Construction Engineering (Transactions of AIJ) 2003

2005
Luca La Rocca

Nonparametric inference on the hazard rate is an alternative to density estimation for positive variables which naturally deals with right censored observations. It is a classic topic of survival analysis which is here shown to be of interest in the applied context of seismic hazard assessment. This paper puts forth a new Bayesian approach to hazard rate estimation, based on building the prior ...

Golsar is located in north-west of Rasht the capital city of Guilan province. This region, according to standards 2800, is identified among the regions with relatively high risk of earthquake. A set of historical and instrumental seismicity data used in radius of 200 km which covers the period twelveth century until now. Kijko method has been applied for estimating for parameters considering of...

Journal: :مهندسی عمران فردوسی 0
علیرضا مرتضایی علی خیرالدین

accurate identification of seismic hazard and the estimation of associated seismic demands are the key components in the performance-based seismic design (pbsd). although nonlinear time history (nth) analysis is the most precise procedure to evaluate the seismic demands of buildings structures, it is relatively complex and time-consuming for routine applications. nonlinear static procedures (ns...

A probabilistic seismic hazard assessment in terms of Arias intensity is presented for the city of Tehran. Tehran is the capital and the most populated city of Iran. From economical, political and social points of view, Tehran is the most significant city of Iran. Many destructive earthquakes happened in Iran in the last centuries. Historical references indicate that the old city of Rey and the...

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