{"id":1282,"date":"2017-06-28T13:29:18","date_gmt":"2017-06-28T13:29:18","guid":{"rendered":"http:\/\/buildsoftsupport.com\/?post_type=ht_kb&p=1282"},"modified":"2022-04-12T07:01:26","modified_gmt":"2022-04-12T07:01:26","slug":"what-is-kdef","status":"publish","type":"ht_kb","link":"https:\/\/support.buildsoft.eu\/fr\/knowledge-base\/what-is-kdef\/","title":{"rendered":"What is kdef<\/sub> (creep timber)?"},"content":{"rendered":"

The stiffness\u00a0properties<\/strong> of timber depend on the timber type (solid, glued, …) and the climatic conditions (temperature, moisture variations).\u00a0The effect is taken into account by the factor kdef<\/sub>.<\/p>\n

According to Eurocode<\/h2>\n
    \n
  • Values for kdef<\/sub>\u00a0are given\u00a0in EN 1995-1-1 Table 3.2.<\/li>\n
  • kdef<\/sub>\u00a0is used to calculate the final mean values of the stiffness properties according to EN 1995-1-1 \u00a72.4.1.<\/li>\n<\/ul>\n\n\n\n\n\n\n
    Design values<\/td>\nMean values<\/td>\nFinal mean values<\/td>\n<\/tr>\n<\/tbody>\n
    \n

      <\/span>   <\/span>\"\[<\/p>\n<\/td>\n

    		\n

      <\/span>   <\/span>\"\[<\/p>\n<\/td>\n

    		\n

      <\/span>   <\/span>\"\[<\/p>\n<\/td>\n<\/tr>\n

    \n

      <\/span>   <\/span>\"\[<\/p>\n<\/td>\n

    		\n

      <\/span>   <\/span>\"\[<\/p>\n<\/td>\n

    		\n

      <\/span>   <\/span>\"\[<\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

     <\/p>\n

    In Diamonds<\/h2>\n
      \n
    • The values for kdef<\/sub>\u00a0are implemented in the material library of Diamonds.<\/li>\n<\/ul>\n

      \"\"<\/p>\n

        \n
      • When you check the option ‘Take creep into account’ after clicking \"\", the final mean value for Young’s modulus \"E_m_e_a_n_._f_i_n\" will be used. \"\Psi_2\" is set equal to 1.<\/li>\n<\/ul>\n

         <\/p>\n

        Note: PowerFrame cannot take\u00a0kdef<\/sub> into account. Only Diamonds can.<\/p>\n","protected":false},"excerpt":{"rendered":"

        The stiffness\u00a0properties of timber depend on the timber type (solid, glued, …) and the climatic conditions (temperature, moisture variations).\u00a0The effect is taken into account by the factor kdef. According to Eurocode Values for kdef\u00a0are given\u00a0in EN 1995-1-1 Table 3.2. kdef\u00a0is used to calculate the final mean values of the stiffness…<\/p>\n","protected":false},"author":3,"comment_status":"closed","ping_status":"closed","template":"","format":"standard","meta":[],"ht-kb-category":[73],"ht-kb-tag":[727,975,628,451,639,446,449,289,437,627,626,728,960,450,504],"_links":{"self":[{"href":"https:\/\/support.buildsoft.eu\/fr\/wp-json\/wp\/v2\/ht-kb\/1282"}],"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=1282"}],"version-history":[{"count":2,"href":"https:\/\/support.buildsoft.eu\/fr\/wp-json\/wp\/v2\/ht-kb\/1282\/revisions"}],"predecessor-version":[{"id":6484,"href":"https:\/\/support.buildsoft.eu\/fr\/wp-json\/wp\/v2\/ht-kb\/1282\/revisions\/6484"}],"wp:attachment":[{"href":"https:\/\/support.buildsoft.eu\/fr\/wp-json\/wp\/v2\/media?parent=1282"}],"wp:term":[{"taxonomy":"ht_kb_category","embeddable":true,"href":"https:\/\/support.buildsoft.eu\/fr\/wp-json\/wp\/v2\/ht-kb-category?post=1282"},{"taxonomy":"ht_kb_tag","embeddable":true,"href":"https:\/\/support.buildsoft.eu\/fr\/wp-json\/wp\/v2\/ht-kb-tag?post=1282"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}