{"id":6715,"date":"2021-08-16T14:43:33","date_gmt":"2021-08-16T14:43:33","guid":{"rendered":"https:\/\/buildsoftsupport.com\/?post_type=ht_kb&p=6715"},"modified":"2025-03-05T15:37:06","modified_gmt":"2025-03-05T15:37:06","slug":"how-to-define-several-sub-cases-per-group","status":"publish","type":"ht_kb","link":"https:\/\/support.buildsoft.eu\/fr\/knowledge-base\/how-to-define-several-sub-cases-per-group\/","title":{"rendered":"About sub load cases"},"content":{"rendered":"

Several sub load cases per load group are a way to organize variations of a certain load group.<\/p>\n

For example: assume the wind can blow from 4 directions. You could made 4 load groups Wind<\/em> which you define as incompatible<\/a>. <\/em>One for each direction. But you could also define one load group Wind<\/em> and organise the 4 directions using sub load cases. The main advantag<\/a>e of using sub load cases is that it’s faster to enter in Diamonds and that the list of combinations remains clear.<\/p>\n

How to define sub load cases<\/h2>\n
    \n
  1. Go to the load configurations \"\".<\/li>\n
  2. Open the dialog for defining load groups \"\".<\/li>\n
  3. Add one load group for wind.\"\"<\/li>\n
  4. Check the option Several load cases per group.
    \n\"\"<\/li>\n
  5. Increase the number of load case to four. Diamonds will add Case 1, Case 2, Case 3<\/em> and Case 4<\/em> automatically to the list. You can change the name of the case if you’d like.\"\"<\/li>\n
  6. The little guys define the incompatbility. When you click on the icon the little guys can hold hands or not.\n
      \n
    • if they are not holding hands\"\", it means the sub load cases are incompatible. Meaning they cannot occur at the same time. This is particularly the case for wind\/ snow loads.<\/li>\n
    • if they are holding hands \"\", it means all sub load cases will act on the structure at the same time. This is particularly the case for dead loads.<\/li>\n<\/ul>\n

      \"\"<\/li>\n<\/ol>\n \t\t

      \r\n \t\t\t \t\t\t \t\t\t\t

      \r\n \t\t\t\t\tIt follows from the above text that it is also possible to use sub load cases for dead loads. This gives you a clear overview of the origin of each dead load. But the disadvantage is that each sub load case takes up memory leading to a longer calculation time. In view of the calculation time, we do not recommend using sub load cases for dead loads in medium to large models.
      \nLet’s say a medium model, is a model with more than two floor levels. \t\t\t\t<\/p>\r\n \t\t\t \t\t\t\r\n \t\t<\/div>\r\n \t\t\n

      How to remove sub load cases<\/h2>\n
        \n
      • A load group containing sub load cases can be converted to regular incompatible load groups using the button Ungroup loadcases<\/em>.<\/li>\n
      • To remove the load group completely from the list, select the load group and hit \"\".<\/li>\n
      • To remove the sub load cases, but not the load group: set the number of sub load cases (= a.k.a. the number in the column #) to 1<\/li>\n
      • To remove the 3 columns #<\/em>, Type<\/em> and Name Load case:
        \n<\/em><\/p>\n
          \n
        • Make sure the column # contains the number 1 for all load<\/strong> groups.<\/li>\n
        • Uncheck the option Several load cases per group<\/em>. The 3 columns #<\/em>, Type<\/em> and Name Load case<\/em> will disappear. 
          \n<\/em><\/li>\n<\/ul>\n<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"

          Several sub load cases per load group are a way to organize variations of a certain load group. For example: assume the wind can blow from 4 directions. You could made 4 load groups Wind which you define as incompatible. One for each direction. But you could also define one load group Wind and…<\/p>\n","protected":false},"author":3,"comment_status":"closed","ping_status":"closed","template":"","format":"standard","meta":[],"ht-kb-category":[1269],"ht-kb-tag":[317,318,886,885,884,887,823],"_links":{"self":[{"href":"https:\/\/support.buildsoft.eu\/fr\/wp-json\/wp\/v2\/ht-kb\/6715"}],"collection":[{"href":"https:\/\/support.buildsoft.eu\/fr\/wp-json\/wp\/v2\/ht-kb"}],"about":[{"href":"https:\/\/support.buildsoft.eu\/fr\/wp-json\/wp\/v2\/types\/ht_kb"}],"author":[{"embeddable":true,"href":"https:\/\/support.buildsoft.eu\/fr\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/support.buildsoft.eu\/fr\/wp-json\/wp\/v2\/comments?post=6715"}],"version-history":[{"count":3,"href":"https:\/\/support.buildsoft.eu\/fr\/wp-json\/wp\/v2\/ht-kb\/6715\/revisions"}],"predecessor-version":[{"id":14838,"href":"https:\/\/support.buildsoft.eu\/fr\/wp-json\/wp\/v2\/ht-kb\/6715\/revisions\/14838"}],"wp:attachment":[{"href":"https:\/\/support.buildsoft.eu\/fr\/wp-json\/wp\/v2\/media?parent=6715"}],"wp:term":[{"taxonomy":"ht_kb_category","embeddable":true,"href":"https:\/\/support.buildsoft.eu\/fr\/wp-json\/wp\/v2\/ht-kb-category?post=6715"},{"taxonomy":"ht_kb_tag","embeddable":true,"href":"https:\/\/support.buildsoft.eu\/fr\/wp-json\/wp\/v2\/ht-kb-tag?post=6715"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}