Selecting hazard-consistent ground motions for seismic risk analysis: an equivalent earthquake-based methodology

Selecting hazard-consistent ground motions for seismic risk analysis: an equivalent earthquake-based methodology | Research Square window.SnipcartSettings = { analytics: { enabled: false } }; (function() { var accessVector = localStorage.getItem('access_vector') || ''; window.dataLayer = window.dataLayer || []; if (accessVector) { window.dataLayer.push({ user: { profile: { profileInfo: { snid: accessVector } } } }); } })(); (function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src='https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);})(window,document,'script','dataLayer','GTM-K279D39R'); Browse Preprints In Review Journals COVID-19 Preprints AJE Video Bytes Research Tools Research Promotion AJE Professional Editing AJE Rubriq About Preprint Platform In Review Editorial Policies Our Team Advisory Board Help Center Sign In Submit a Preprint Cite Share Download PDF Research Article Selecting hazard-consistent ground motions for seismic risk analysis: an equivalent earthquake-based methodology Bo Li This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-4567504/v1 This work is licensed under a CC BY 4.0 License Status: Published Journal Publication published 01 Aug, 2025 Read the published version in Bulletin of Earthquake Engineering → Version 1 posted 5 You are reading this latest preprint version Abstract Seismic risk analysis has received significant attention from both academia and industry in recent years. When conducting seismic risk analyses, selecting hazard-consistent ground motions is crucial. Traditional methods for selecting hazard-consistent ground motions often have limitations, addressing only a few periods and using discrete intensity levels, which can lead to inaccurate risk estimates. This study introduces a novel methodology that overcomes these limitations by using equivalent earthquakes derived from special seismic hazard disaggregation. This approach generates a scenario earthquake set to simulate target response spectra consistent with the seismic hazards of a target site through importance sampling. A selection scheme is also proposed to identify hazard-consistent ground motions from a database. Furthermore, a new method for performing probabilistic seismic demand analysis is presented. A numerical example demonstrates that the selected ground motions maintain strong consistency with the site's seismic hazard curves across a wide range of periods. Unlike traditional methods, this approach does not depend on the fundamental period of specific buildings, making the selected ground motions applicable for accurate seismic risk analysis of multiple structures at the same site. hazard-consistent ground motion selection importance sampling equivalent earthquakes seismic hazard disaggregation probabilistic seismic demand analysis Full Text Cite Share Download PDF Status: Published Journal Publication published 01 Aug, 2025 Read the published version in Bulletin of Earthquake Engineering → Version 1 posted Reviewers agreed at journal 17 Jun, 2024 Reviewers invited by journal 17 Jun, 2024 Editor invited by journal 15 Jun, 2024 Editor assigned by journal 12 Jun, 2024 First submitted to journal 11 Jun, 2024 You are reading this latest preprint version Research Square lets you share your work early, gain feedback from the community, and start making changes to your manuscript prior to peer review in a journal. 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