Package index
Dynamic site response (Workflow 1)
Build the soil profile, the fundamental period of the sliding mass, and the site-amplified UHS.
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getSiteProperties() - Monte Carlo site properties from synthetic soil profiles
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geSiteTable() - Single-realisation synthetic soil profile and site properties
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getCylinderRoots() - Characteristic root of an inhomogeneous truncated shear beam
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fitModel.Ts() - Site's Fundamental Period
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fitSaF() - Site-amplified spectral acceleration (NGA-East site-response models)
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fitSaFMixture() - Transform an analytic spectral mixture through site response
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fitSaLognormal() - Fit a period-wise lognormal approximation to one spectrum
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Vs30toSID() - Convert Vs30 (m/s) to Site Class Identifier
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SIDtoVs30() - Look Up Package Representative Vs30 Values
Hazard import (Workflow 2)
Convert OpenQuake classical-PSHA and disaggregation output into the AEPTable, UHSTable and RMwTable consumed downstream.
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buildGMDP() - Build Ground-Motion Design Parameters (GMDP)
Displacement curves (Workflow 3)
Build the ky grid and run the coherent Monte Carlo over the six-model Newmark sliding-block ensemble.
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getDnKy() - Build a log-spaced ky grid for one scenario
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fitDnCurve() - Newmark displacement curve Dn(ky) for one scenario
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fitDnModel() - Newmark displacement for a single submodel and scenario
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getKyLimits() - Get calibrated ky range for each displacement model
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fitDnScenario() - Fit Newmark displacement for one scenario row
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fitDnScenarios() - Fit Newmark displacement for multiple scenario rows
Seismic coefficient (Workflow 4)
Invert per-realisation displacement draws to the design kmax at the chosen displacement targets.
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invertDnDraws() - Invert Dn draws to kmax(Da)
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fitKmaxScenario() - Fit kmax for one scenario row
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fitKmaxScenarios() - Fit kmax for multiple scenario rows
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CylinderRoots - Cylinder Roots Data
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ShearModelParameters - ShearModelParameters
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SiteClass - Site Class Data
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SiteTable - SiteTable Data
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Dn_AM88() - Ambraseys & Menu (1988) rigid sliding-block model
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Dn_BM17() - Bray & Macedo (2017) - subduction/interface events
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Dn_BM19() - Bray & Macedo (2019, corrected 2023) - shallow-crustal events
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Dn_BT07() - Bray & Travasarou (2007) flexible sliding-block model
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Dn_JB07() - Jibson (2007) empirical model
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Dn_SR08() - Saygili & Rathje (2008) model
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F_ST17() - Non-linear site amplification factor FST17
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F_ST20() - Non-linear site amplification factor FST20
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SaF_ST17() - Site-amplified spectral acceleration (2017 NGA-East generation)
Internal hazard / spectrum helpers
Lower-level helpers exposed by the package; used internally by fitSaF(), buildGMDP() and the Monte Carlo sampling.
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approx.spline() - Highcharts-style cubic spline interpolation
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buildQSpline() - Build a monotone quantile spline Q(u) for ln(Sa)
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checkUHS() - Check monotonicity and duplicates in UHSTable
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designUHS() - MCER / Design elastic spectrum for a Vs30/Vref slice (ASCE 7-22 shape)
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getDesignParameters() - Design acceleration parameters from a site-specific spectrum (ASCE 7-22 Sec. 21.4)
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interpolateSaTable() - Interpolate quantile curves in one UHS slice
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rhoBJ() - Baker and Jayaram inter-period residual correlation
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sampleSaCorr() - Draw a correlated sample of spectral accelerations
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solveRTGM() - Risk-targeted ground motion for one hazard curve (ASCE 7-22 Sec. 21.2.1)