{"id":6487,"date":"2021-04-21T08:29:51","date_gmt":"2021-04-21T08:29:51","guid":{"rendered":"https:\/\/buildsoftsupport.com\/?post_type=ht_kb&#038;p=6487"},"modified":"2026-02-11T16:18:57","modified_gmt":"2026-02-11T16:18:57","slug":"about-the-consequence-class","status":"publish","type":"ht_kb","link":"https:\/\/support.buildsoft.eu\/es\/knowledge-base\/about-the-consequence-class\/","title":{"rendered":"About the consequence class"},"content":{"rendered":"<div class=\"su-tabs su-tabs-style-default su-tabs-mobile-stack\" data-active=\"1\" data-scroll-offset=\"0\" data-anchor-in-url=\"no\"><div class=\"su-tabs-nav\"><span class=\"\" data-anchor=\"EN\" data-url=\"\" data-target=\"\" tabindex=\"0\" role=\"button\">EN<\/span><span class=\"\" data-anchor=\"NL\" data-url=\"\" data-target=\"\" tabindex=\"0\" role=\"button\">NL<\/span><\/div><div class=\"su-tabs-panes\"><div class=\"su-tabs-pane su-u-clearfix su-u-trim\" data-title=\"EN\">\nIt is practically impossible to determine what the desired structural reliability for each different structure\u00a0should be. Therefore EN 1990 Annex B divides structures into three consequence classes (<em>CC<\/em> for short):<\/p>\n<table>\n<tbody>\n<tr>\n<th>Consequence Class<\/th>\n<th>Consequences<\/th>\n<th>Examples<\/th>\n<\/tr>\n<tr>\n<td>CC3<\/td>\n<td>Chance of losing lives: high<br \/>\nEconomic\/social impact: large<\/td>\n<td>Grandstands, public buildings, concert hall<\/td>\n<\/tr>\n<tr>\n<td>CC2<\/td>\n<td>Chance of losing lives: average<br \/>\nEconomic\/social impact: considerable<\/td>\n<td>Residential and office buildings<\/td>\n<\/tr>\n<tr>\n<td>CC1<\/td>\n<td>Chance of losing lives: low<br \/>\nEconomic\/social impact: small or negligible<\/td>\n<td>Agricultural buildings where people do not normally enter: storage buildings, greenhouses<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>The consequence class determines which partial safety coefficients for ULS-combinations should be used:<\/p>\n<table>\n<tbody>\n<tr>\n<th><\/th>\n<th>CC1 = CC2 * 0.9<\/th>\n<th>CC2<\/th>\n<th>CC3 = CC2 * 1.1<\/th>\n<\/tr>\n<tr>\n<td>Fixed loads<\/p>\n<ul>\n<li>Unfavourable<\/li>\n<li>Favourable<\/li>\n<\/ul>\n<\/td>\n<td style=\"text-align: center;\">1,22<br \/>\n0,9<\/td>\n<td style=\"text-align: center;\">1,35<br \/>\n1<\/td>\n<td style=\"text-align: center;\">1,5<br \/>\n1<\/td>\n<\/tr>\n<tr>\n<td>Variable loads<\/p>\n<ul>\n<li>Unfavourable<\/li>\n<li>Favourable<\/li>\n<\/ul>\n<\/td>\n<td style=\"text-align: center;\">1,35<br \/>\n0<\/td>\n<td style=\"text-align: center;\">1,5<br \/>\n0<\/td>\n<td style=\"text-align: center;\">1,65<br \/>\n0<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>Notes:<\/p>\n<ul>\n<li>The National Annex may provide more detailed tables (which slightly different values) than the ones listed in this article.<\/li>\n<li>In general, structures in reliability class RCi are associated with a consequence class CCi, with a design and calculation supervision DSLi and with an inspection level ILi.<br \/>\nBut the Belgian annex NBN EN 1990 ANB:2021 Annex B makes an exception for CC3:<br \/>\n<em>\u00abExceptionally, for a construction in RC3, the levels DSL 3 and IL3 may be omitted, provided that a K<sub>FI<\/sub>-factor of 1.1 is not taken, but a K<sub>FI<\/sub>-factor of 1.2 for the variable loads and a K<sub>FI<\/sub>-factor 1.1 for permanent loads. Even this last method is not the most preferable method.\u00bb<\/em><br \/>\nThis exception rule is implemented since Diamonds 2023r01 under CC3*.<\/li>\n<li>The consequence class can be entered in the Load Group dialog <img decoding=\"async\" loading=\"lazy\" class=\"img_inline alignnone size-full wp-image-1442\" src=\"https:\/\/buildsoftsupport.com\/wp-content\/uploads\/2017\/08\/KnopLastengroepen.png\" alt=\"\" width=\"34\" height=\"33\" \/>. Diamonds will automatically adjust the partial safety coefficients.<br \/>\n<img decoding=\"async\" loading=\"lazy\" class=\"alignnone wp-image-15193\" src=\"https:\/\/support.buildsoft.eu\/wp-content\/uploads\/2021\/04\/Gevolgklasse.png\" alt=\"\" width=\"800\" height=\"293\" \/><\/li>\n<\/ul>\n<\/div>\n<div class=\"su-tabs-pane su-u-clearfix su-u-trim\" data-title=\"NL\">\n<p>Het is praktisch onmogelijk om voor elke constructie de gewenste constructieve betrouwbaarheid te bepalen. Daarom verdeelt EN 1990 Bijlage B constructies in drie gevolgklassen (EN: consequence classes, van daar de afkorting <em>CC<\/em> ):<\/p>\n<table>\n<tbody>\n<tr>\n<th>Gevolgklasse<\/th>\n<th>Gevolgen<\/th>\n<th>Voorbeelden<\/th>\n<\/tr>\n<tr>\n<td>CC3<\/td>\n<td>kans op levensverlies: hoog<br \/>\nEconomische\/sociale impact: groot<\/td>\n<td>Tribunes, openbare gebouwen, concertzaal<\/td>\n<\/tr>\n<tr>\n<td>CC2<\/td>\n<td>Kans op levensverlies: gemiddeld Economische\/sociale impact: aanzienlijk<\/td>\n<td>Woon- en kantoorgebouwen<\/td>\n<\/tr>\n<tr>\n<td>CC1<\/td>\n<td>Kans op levensverlies: laag<br \/>\nEconomische\/sociale impact: verwaarloosbaar<\/td>\n<td>Landbouwgebouwen waar normaal gesproken geen mensen komen: opslaggebouwen, kassen<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>De gevolgklasse bepaalt welke parti\u00eble veiligheidsco\u00ebffici\u00ebnten voor ULS-combinaties moeten worden gebruikt:<\/p>\n<table>\n<tbody>\n<tr>\n<th><\/th>\n<th>CC1 = CC2 * 0.9<\/th>\n<th>CC2<\/th>\n<th>CC3 = CC2 * 1.1<\/th>\n<\/tr>\n<tr>\n<td>Vaste lasten<\/p>\n<ul>\n<li>Ongunstig<\/li>\n<li>Gunstig<\/li>\n<\/ul>\n<\/td>\n<td style=\"text-align: center;\">1,22<br \/>\n0,9<\/td>\n<td style=\"text-align: center;\">1,35<br \/>\n1<\/td>\n<td style=\"text-align: center;\">1,5<br \/>\n1<\/td>\n<\/tr>\n<tr>\n<td>Variabele lasten<\/p>\n<ul>\n<li>Ongunstig<\/li>\n<li>Gunstig<\/li>\n<\/ul>\n<\/td>\n<td style=\"text-align: center;\">1,35<br \/>\n0<\/td>\n<td style=\"text-align: center;\">1,5<br \/>\n0<\/td>\n<td style=\"text-align: center;\">1,65<br \/>\n0<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>Opmerkingen:<\/p>\n<ul>\n<li>De Nationale Bijlage bevat mogelijk meer gedetailleerde tabellen (met licht afwijkende waarden) dan de tabellen die in dit artikel zijn vermeld.<\/li>\n<li>Algemeen worden structuren uit betrouwbaarheidsklasse RCi (EN: reliability class) geassocieerd met gevolgklasse CCi, met een ontwerp- en berekeningsbegeleiding DSLi (EN: Design Supervision Level) en met een inspectieniveau ILi.<br \/>\nMaar de Belgische nationale bijlage NBN EN 1990 ANB:2021 Bijlage B maakt een uitzondering voor gevolgklasse CC3:<br \/>\n<em>\u00abUitzonderlijk, mogen voor een constructie in RC3 de niveaus DSL3 en IL3 achterwege worden gelaten op voorwaarde dat niet een K<sub>FI<\/sub>-factor of 1.1 wordt genomen maar wel een K<sub>FI<\/sub>-factor of 1.2 voor de veranderlijke belastingen en een K<sub>FI<\/sub>-factor 1.1 voor de blijvende belastingen. Evenwel is deze laatste methode neit de meest te verkiezen methode.\u00bb<\/em><br \/>\nDeze uitzondering is geimplementeerd vanaf Diamonds 2023r01 via de gevolklasse CC3*.<\/li>\n<li>De gevolgklasse kan worden ingevoerd in dit dialoogvenster <img decoding=\"async\" loading=\"lazy\" class=\"img_inline alignnone size-full wp-image-1442\" style=\"color: initial;\" src=\"https:\/\/buildsoftsupport.com\/wp-content\/uploads\/2017\/08\/KnopLastengroepen.png\" alt=\"\" width=\"34\" height=\"33\" \/>. Diamonds past de parti\u00eble veiligheidsco\u00ebffici\u00ebnten automatisch aan.<img decoding=\"async\" loading=\"lazy\" class=\"alignnone wp-image-15193\" src=\"https:\/\/support.buildsoft.eu\/wp-content\/uploads\/2021\/04\/Gevolgklasse.png\" alt=\"\" width=\"800\" height=\"293\" \/><\/li>\n<\/ul>\n<\/div><\/div><\/div>\n","protected":false},"excerpt":{"rendered":"","protected":false},"author":3,"comment_status":"closed","ping_status":"closed","template":"","format":"standard","meta":[],"ht-kb-category":[1269],"ht-kb-tag":[732,731,733,1348],"_links":{"self":[{"href":"https:\/\/support.buildsoft.eu\/es\/wp-json\/wp\/v2\/ht-kb\/6487"}],"collection":[{"href":"https:\/\/support.buildsoft.eu\/es\/wp-json\/wp\/v2\/ht-kb"}],"about":[{"href":"https:\/\/support.buildsoft.eu\/es\/wp-json\/wp\/v2\/types\/ht_kb"}],"author":[{"embeddable":true,"href":"https:\/\/support.buildsoft.eu\/es\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/support.buildsoft.eu\/es\/wp-json\/wp\/v2\/comments?post=6487"}],"version-history":[{"count":3,"href":"https:\/\/support.buildsoft.eu\/es\/wp-json\/wp\/v2\/ht-kb\/6487\/revisions"}],"predecessor-version":[{"id":23952,"href":"https:\/\/support.buildsoft.eu\/es\/wp-json\/wp\/v2\/ht-kb\/6487\/revisions\/23952"}],"wp:attachment":[{"href":"https:\/\/support.buildsoft.eu\/es\/wp-json\/wp\/v2\/media?parent=6487"}],"wp:term":[{"taxonomy":"ht_kb_category","embeddable":true,"href":"https:\/\/support.buildsoft.eu\/es\/wp-json\/wp\/v2\/ht-kb-category?post=6487"},{"taxonomy":"ht_kb_tag","embeddable":true,"href":"https:\/\/support.buildsoft.eu\/es\/wp-json\/wp\/v2\/ht-kb-tag?post=6487"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}