نتایج جستجو برای: to assess seismic hazard

تعداد نتایج: 10640812  

2017

Submit Manuscript | http://medcraveonline.com Abbreviations: EQ: Earthquake; CS: Complex System; AE: Acoustic Emission; ETAS: Epidemic-Type Aftershock Sequence; B-G: Boltzman-Gibbs; PSHA: Probabilistic Seismic Hazard Analysis; SHA: Seismic Hazard Assessment; SOC: Self-Organized Criticality; NESM: Non-Extensive Statistical Mechanics; IFS: Iterated Function Systems; RP: Recurrent Plots; RQA: Recu...

H. Rahami, M. Mousavi, P. Mohebian,

The present study sets out to integrate the performance-based seismic design approach with the connection topology optimization method. Performance-based connection topology optimization concept aims to simultaneously optimize the size of members and the type of connections with respect to the framework of performance-based seismic design. This new optimization concept is carried out for unbrac...

2014
A. Kamali Asl

Seismic hazard analysis of vulnerable countries on the Alpine-Himalayan belt has great importance to be considered. Recently, Iran as one of the countries located on the stated belt has experienced a few number of severe earthquakes. A wellestablished index of how earthquakes affect buildings is by assessing probable Peak Ground Acceleration (PGA) which can be estimated by past events. For this...

The present study assesses the seismic performance of steel moment resisting frames (SMFs) retrofitted with different bracing systems. Two structural configurations were utilized: ordinary concentrically braces (OCBFs), buckling-restrained braces (BRBFs). A 7-story and 18-story steel perimeter SMFs were designed with insufficient lateral stiffness to satisfy code drift limitations in high seism...

2015
Yu Dang Jianping Han Yongtao Li

This paper proposes an indicator of seismic performance based on life-cycle cost of a building. It is expressed as a ratio of lifetime damage loss to life-cycle cost and determines the seismic performance of isolated buildings. Major factors are considered, including uncertainty in hazard demand and structural capacity, initial costs, and expected loss during earthquakes. Thus, a high indicator...

Cylindrical liquid storage tanks are considered as vital structures in industrial complex whose nonlinear dynamic behavior is of crucial importance. Some of these structures around the world have demonstrated poor seismic behavior over the last decades. There are several methods and techniques for rehabilitation and reducing damages in these structures which among them passive control devices, ...

A. Abbaszadeh Shahri, A. Ghaderi R. Rajablou

Iran is an active seismic region. Earthquake damage is commonly controlled by three interacting factors including source and path characteristics, local geological and geotechnical conditions and type of the structures. Obviously, all of this would require analysis and presentation of a large amount of geological, seismological and geotechnical data. In this paper, nonlinear geotechnical seismi...

2006
F. G. Perez C. T. Higgins

The California Seismic Hazards Mapping Act of 1990 directs the California Geological Survey (CGS) to delineate seismic hazard zones of required investigation for earthquake-induced ground failures specifically, liquefaction and seismically triggered landslides. To date, more than 100 official Seismic Hazard Zone maps have been released, covering 200 cities and unincorporated areas in ten counti...

2012
Duruo Huang Jui-Pin Wang

This study developed a national seismic hazard map around Taiwan through a deterministic manner. The essential of this approach is to treat every historic event as a potential point source, then with the seismic hazard taken as the maximum ground motion resulted from the series of earthquake events. A program developed in-house was used to carry out mass computation and map-making. The results ...

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