Abstract
To quantify the annual probability of earthquake ground motion (GM) exceeding a given threshold, the extensively used method named by probabilistic seismic hazard analysis (PSHA) can be adopted. The PSHA software made this method more effortless for estimating earthquake hazards for a seismic site. The main motivation of the PSHRisk-tool is to evaluate the PSHA by a user-friendly graphical interface as well as identify the intensities of GM, which will contribute to the most vulnerable condition for the infrastructure. This python-code based tool can demonstrate the source identification, probability distribution plot of magnitude and distance, formulate the hazard curve according to almost all ground motion prediction equations (GMPEs). The deaggregation for each intensity measure (IM) and the effect of seismic parameters in each GMPE can also be determined. Alongside this, the combination of the failure frequency and the hazard analysis for identifying risk assessment separates this tool from the other existing PSHA software. Accurate verification with analytical and existing test models and a case study inspires its acceptance rate. However, with the quickest and easiest way users can determine the seismic hazard analysis for any location. Failure risk analysis can be evaluated simply based on the structural failure parameters.
Highlights
To address the structural safety against earthquakes, the seismic risk analysis first consists of determining the annual probability of exceeding a certain level of ground motion at a site [1,2].This level of an earthquake depends on several uncertainties, where the seismic risk uncertainties are related to the location, size, frequency, and effect of an earthquake
In the case of structural seismic response, the identification of the most contributing intensity measure (IM) for failure risk can be measured by the concept of mean annual frequency of failure as used by Eads et al [3,4] which is the combination of the seismic hazard and the structure’s
With 1, thewhich help are of these backgrounds, the PSHRisk-tool performs theoffollowing shown in Figure divided into four parts (PSHA, Extended Probabilistic Seismic Hazard Analysis (EPSHA), performs the following tasks shown and FR_Assessment) inas this tool.in Figure 1, which are divided into four parts (PSHA, EPSHA, ground motion prediction equations (GMPEs) and FR_Assessment) in this tool
Summary
Similar to the previous PSHA software, the PSHRisk-tool can provide a seismic hazard analysis of any source by just providing the “latitude” and “longitude” or as a coordinate value of a specified site By using this software one can estimate the probability of distance distribution between the earthquake source and the specified site considering four different sources, i.e point, line, area and. Source is available the authors believe that features of this first version may lookThe similar tocode the general aspects on request, is fully portable (platform-independent) for the user and capable of high-range of other PSHA software, the incorporation of the structural failure risk assessment makes it different computations as well. May look similar to the general aspects of other PSHA software, the incorporation of the structural failure risk assessment makes it different from others
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