{"id":236044,"date":"2022-09-22T11:45:39","date_gmt":"2022-09-22T11:45:39","guid":{"rendered":"\/forum\/forums\/reply\/236044\/"},"modified":"2022-09-22T11:46:45","modified_gmt":"2022-09-22T11:46:45","slug":"236044","status":"publish","type":"reply","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/236044\/","title":{"rendered":"Reply To: Seismic event\/ Earthquake"},"content":{"rendered":"<p>&lt;p&gt;Correct. Response Spectrum does not take into account the stress due to gravity.&lt;\/p&gt;&lt;p&gt;If you have a Static Structural solution linked to the setup cell of Modal, which is linked to Response Spectrum, then the STIFFNESS change due to gravity will be taken into account, but not the stress.&nbsp; The reason is that gravity is a constant value, while Modal only deals with vibrations about the zero position.&lt;\/p&gt;<\/p>\n","protected":false},"template":"","class_list":["post-236044","reply","type-reply","status-publish","hentry"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 4.9.10 - aioseo.com -->\n\t<meta name=\"description\" content=\"Correct. Response Spectrum does not take into account the stress due to gravity.If you have a Static Structural solution linked to the setup cell of Modal, which is linked to Response Spectrum, then the STIFFNESS change due to gravity will be taken into account, but not the stress. The reason is that gravity is a\" \/>\n\t<meta name=\"robots\" content=\"max-image-preview:large\" \/>\n\t<link rel=\"canonical\" href=\"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/236044\/\" \/>\n\t<meta name=\"generator\" content=\"All in One SEO (AIOSEO) 4.9.10\" \/>\n\t\t<meta property=\"og:locale\" content=\"en_US\" \/>\n\t\t<meta property=\"og:site_name\" content=\"Ansys Learning Forum | Ansys Innovation Space\" \/>\n\t\t<meta property=\"og:type\" content=\"article\" \/>\n\t\t<meta property=\"og:title\" content=\"Reply To: Seismic event\/ Earthquake | Ansys Learning Forum\" \/>\n\t\t<meta property=\"og:description\" content=\"Correct. Response Spectrum does not take into account the stress due to gravity.If you have a Static Structural solution linked to the setup cell of Modal, which is linked to Response Spectrum, then the STIFFNESS change due to gravity will be taken into account, but not the stress. The reason is that gravity is a\" \/>\n\t\t<meta property=\"og:url\" content=\"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/236044\/\" \/>\n\t\t<meta property=\"article:published_time\" content=\"2022-09-22T11:45:39+00:00\" \/>\n\t\t<meta property=\"article:modified_time\" content=\"2022-09-22T11:46:45+00:00\" \/>\n\t\t<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n\t\t<meta name=\"twitter:title\" content=\"Reply To: Seismic event\/ Earthquake | Ansys Learning Forum\" \/>\n\t\t<meta name=\"twitter:description\" content=\"Correct. Response Spectrum does not take into account the stress due to gravity.If you have a Static Structural solution linked to the setup cell of Modal, which is linked to Response Spectrum, then the STIFFNESS change due to gravity will be taken into account, but not the stress. The reason is that gravity is a\" \/>\n\t\t<script type=\"application\/ld+json\" class=\"aioseo-schema\">\n\t\t\t{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/forums\\\/reply\\\/236044\\\/#breadcrumblist\",\"itemListElement\":[{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum#listItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\",\"nextItem\":{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/forums\\\/reply\\\/236044\\\/#listItem\",\"name\":\"Reply To: Seismic event\\\/ Earthquake\"}},{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/forums\\\/reply\\\/236044\\\/#listItem\",\"position\":2,\"name\":\"Reply To: Seismic event\\\/ Earthquake\",\"previousItem\":{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum#listItem\",\"name\":\"Home\"}}]},{\"@type\":\"Organization\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/#organization\",\"name\":\"Ansys Learning Forum\",\"description\":\"Ansys Innovation Space\",\"url\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/\"},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/forums\\\/reply\\\/236044\\\/#webpage\",\"url\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/forums\\\/reply\\\/236044\\\/\",\"name\":\"Reply To: Seismic event\\\/ Earthquake | Ansys Learning Forum\",\"description\":\"Correct. Response Spectrum does not take into account the stress due to gravity.If you have a Static Structural solution linked to the setup cell of Modal, which is linked to Response Spectrum, then the STIFFNESS change due to gravity will be taken into account, but not the stress. The reason is that gravity is a\",\"inLanguage\":\"en-US\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/#website\"},\"breadcrumb\":{\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/forums\\\/reply\\\/236044\\\/#breadcrumblist\"},\"datePublished\":\"2022-09-22T11:45:39+00:00\",\"dateModified\":\"2022-09-22T11:46:45+00:00\"},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/#website\",\"url\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/\",\"name\":\"Ansys Learning Forum\",\"description\":\"Ansys Innovation Space\",\"inLanguage\":\"en-US\",\"publisher\":{\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/#organization\"}}]}\n\t\t<\/script>\n\t\t<!-- All in One SEO -->\n\n","aioseo_head_json":{"title":"Reply To: Seismic event\/ Earthquake | Ansys Learning Forum","description":"Correct. Response Spectrum does not take into account the stress due to gravity.If you have a Static Structural solution linked to the setup cell of Modal, which is linked to Response Spectrum, then the STIFFNESS change due to gravity will be taken into account, but not the stress. The reason is that gravity is a","canonical_url":"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/236044\/","robots":"max-image-preview:large","keywords":"","webmasterTools":{"miscellaneous":""},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"BreadcrumbList","@id":"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/236044\/#breadcrumblist","itemListElement":[{"@type":"ListItem","@id":"https:\/\/innovationspace.ansys.com\/forum#listItem","position":1,"name":"Home","item":"https:\/\/innovationspace.ansys.com\/forum","nextItem":{"@type":"ListItem","@id":"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/236044\/#listItem","name":"Reply To: Seismic event\/ Earthquake"}},{"@type":"ListItem","@id":"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/236044\/#listItem","position":2,"name":"Reply To: Seismic event\/ Earthquake","previousItem":{"@type":"ListItem","@id":"https:\/\/innovationspace.ansys.com\/forum#listItem","name":"Home"}}]},{"@type":"Organization","@id":"https:\/\/innovationspace.ansys.com\/forum\/#organization","name":"Ansys Learning Forum","description":"Ansys Innovation Space","url":"https:\/\/innovationspace.ansys.com\/forum\/"},{"@type":"WebPage","@id":"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/236044\/#webpage","url":"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/236044\/","name":"Reply To: Seismic event\/ Earthquake | Ansys Learning Forum","description":"Correct. Response Spectrum does not take into account the stress due to gravity.If you have a Static Structural solution linked to the setup cell of Modal, which is linked to Response Spectrum, then the STIFFNESS change due to gravity will be taken into account, but not the stress. The reason is that gravity is a","inLanguage":"en-US","isPartOf":{"@id":"https:\/\/innovationspace.ansys.com\/forum\/#website"},"breadcrumb":{"@id":"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/236044\/#breadcrumblist"},"datePublished":"2022-09-22T11:45:39+00:00","dateModified":"2022-09-22T11:46:45+00:00"},{"@type":"WebSite","@id":"https:\/\/innovationspace.ansys.com\/forum\/#website","url":"https:\/\/innovationspace.ansys.com\/forum\/","name":"Ansys Learning Forum","description":"Ansys Innovation Space","inLanguage":"en-US","publisher":{"@id":"https:\/\/innovationspace.ansys.com\/forum\/#organization"}}]},"og:locale":"en_US","og:site_name":"Ansys Learning Forum | Ansys Innovation Space","og:type":"article","og:title":"Reply To: Seismic event\/ Earthquake | Ansys Learning Forum","og:description":"Correct. Response Spectrum does not take into account the stress due to gravity.If you have a Static Structural solution linked to the setup cell of Modal, which is linked to Response Spectrum, then the STIFFNESS change due to gravity will be taken into account, but not the stress. The reason is that gravity is a","og:url":"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/236044\/","article:published_time":"2022-09-22T11:45:39+00:00","article:modified_time":"2022-09-22T11:46:45+00:00","twitter:card":"summary_large_image","twitter:title":"Reply To: Seismic event\/ Earthquake | Ansys Learning Forum","twitter:description":"Correct. Response Spectrum does not take into account the stress due to gravity.If you have a Static Structural solution linked to the setup cell of Modal, which is linked to Response Spectrum, then the STIFFNESS change due to gravity will be taken into account, but not the stress. The reason is that gravity is a"},"aioseo_meta_data":{"post_id":"236044","title":null,"description":null,"keywords":null,"keyphrases":null,"primary_term":null,"canonical_url":null,"og_title":null,"og_description":null,"og_object_type":"default","og_image_type":"content","og_image_url":null,"og_image_width":null,"og_image_height":null,"og_image_custom_url":null,"og_image_custom_fields":null,"og_video":null,"og_custom_url":null,"og_article_section":null,"og_article_tags":null,"twitter_use_og":true,"twitter_card":"default","twitter_image_type":"default","twitter_image_url":null,"twitter_image_custom_url":null,"twitter_image_custom_fields":null,"twitter_title":null,"twitter_description":null,"schema":{"blockGraphs":[],"customGraphs":[],"default":{"data":{"Article":[],"Course":[],"Dataset":[],"FAQPage":[],"Movie":[],"Person":[],"Product":[],"ProductReview":[],"Car":[],"Recipe":[],"Service":[],"SoftwareApplication":[],"WebPage":[]},"graphName":"","isEnabled":true},"graphs":[]},"schema_type":"default","schema_type_options":null,"pillar_content":false,"robots_default":true,"robots_noindex":false,"robots_noarchive":false,"robots_nosnippet":false,"robots_nofollow":false,"robots_noimageindex":false,"robots_noodp":false,"robots_notranslate":false,"robots_max_snippet":null,"robots_max_videopreview":null,"robots_max_imagepreview":"large","priority":null,"frequency":null,"local_seo":null,"limit_modified_date":false,"created":"2024-10-28 19:03:04","updated":"2026-08-09 15:34:17","ai":null,"breadcrumb_settings":null,"seo_analyzer_scan_date":null},"aioseo_breadcrumb":"<div class=\"aioseo-breadcrumbs\"><span class=\"aioseo-breadcrumb\">\n\t\t\t<a href=\"https:\/\/innovationspace.ansys.com\/forum\" title=\"Home\">Home<\/a>\n\t\t<\/span><span class=\"aioseo-breadcrumb-separator\">&raquo;<\/span><span class=\"aioseo-breadcrumb\">\n\t\t\tReply To: Seismic event\/ Earthquake\n\t\t<\/span><\/div>","aioseo_breadcrumb_json":[{"label":"Home","link":"https:\/\/innovationspace.ansys.com\/forum"},{"label":"Reply To: Seismic event\/ Earthquake","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/236044\/"}],"acf":[],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/replies\/236044","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/replies"}],"about":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/types\/reply"}],"version-history":[{"count":0,"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/replies\/236044\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=236044"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}