{"id":3511,"date":"2018-09-18T15:08:10","date_gmt":"2018-09-18T15:08:10","guid":{"rendered":"http:\/\/buildsoftsupport.com\/?post_type=ht_kb&#038;p=3511"},"modified":"2018-09-18T15:08:10","modified_gmt":"2018-09-18T15:08:10","slug":"sum-of-reactions-does-not-equal-total-loading","status":"publish","type":"ht_kb","link":"https:\/\/support.buildsoft.eu\/nl\/knowledge-base\/sum-of-reactions-does-not-equal-total-loading\/","title":{"rendered":"Sum of reactions does not equal total loading"},"content":{"rendered":"<h2>Example<\/h2>\n<p><img decoding=\"async\" loading=\"lazy\" class=\"size-full wp-image-3515 aligncenter\" src=\"http:\/\/buildsoftsupport.com\/wp-content\/uploads\/2018\/09\/concrete_examplereactions1.png\" alt=\"\" width=\"512\" height=\"291\" srcset=\"https:\/\/support.buildsoft.eu\/wp-content\/uploads\/2018\/09\/concrete_examplereactions1.png 512w, https:\/\/support.buildsoft.eu\/wp-content\/uploads\/2018\/09\/concrete_examplereactions1-300x171.png 300w, https:\/\/support.buildsoft.eu\/wp-content\/uploads\/2018\/09\/concrete_examplereactions1-50x28.png 50w, https:\/\/support.buildsoft.eu\/wp-content\/uploads\/2018\/09\/concrete_examplereactions1-60x34.png 60w, https:\/\/support.buildsoft.eu\/wp-content\/uploads\/2018\/09\/concrete_examplereactions1-35x20.png 35w\" sizes=\"(max-width: 512px) 100vw, 512px\" \/><\/p>\n<p>A continuous beam<\/p>\n<ul>\n<li>2 spans\n<ul>\n<li>3m<\/li>\n<li>4m<\/li>\n<\/ul>\n<\/li>\n<li>rectangular cross-section b=190mm &amp; h=500mm<\/li>\n<li>2 loads:\n<ul>\n<li>selfweight : <em>2.38 kN\/m<\/em><\/li>\n<li>dead load : <em>20 kN\/m<\/em><\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>Let us now sum up ULS minimal reactions (we expect the load factor here to be 1) and compare this with the total load<\/p>\n<ul>\n<li>total load : <em>(20 kN\/m + 2.38 kN\/m) * 7m = 156,6 kN<\/em><\/li>\n<li>reactions ULS : <em>18.46 kN + 99.52 kN + 34.72 kN = 152,7 kN \u2260 156.6 kN<br \/>\n<\/em><\/li>\n<\/ul>\n<h2>Solution<\/h2>\n<p>The displayed ULS minimal reactions do not necessarely correspond with all load factor equal to 1.\u00a0 ConCrete calculates the enveloppe of the loads, calculated with load factors 1.35 and 1, and distillates the minimal reactions.<\/p>\n<p>You can only compare the total loading with the reaction in SLS RC (Serviceability Limit State Rare Combination), here the load factors are always 1. You can display the SLS RC reactions by clicking the <img decoding=\"async\" loading=\"lazy\" class=\"alignnone size-full wp-image-3514 img_inline\" src=\"http:\/\/buildsoftsupport.com\/wp-content\/uploads\/2018\/09\/concrete_staafinfo.png\" alt=\"\" width=\"24\" height=\"24\" \/>\u00a0 icon and opt to see the combination SLS RC in the dialog window that pops up.<\/p>\n<p><img decoding=\"async\" loading=\"lazy\" class=\"size-full wp-image-3516 aligncenter\" src=\"http:\/\/buildsoftsupport.com\/wp-content\/uploads\/2018\/09\/concrete_examplereactions2.png\" alt=\"\" width=\"512\" height=\"356\" srcset=\"https:\/\/support.buildsoft.eu\/wp-content\/uploads\/2018\/09\/concrete_examplereactions2.png 512w, https:\/\/support.buildsoft.eu\/wp-content\/uploads\/2018\/09\/concrete_examplereactions2-300x209.png 300w, https:\/\/support.buildsoft.eu\/wp-content\/uploads\/2018\/09\/concrete_examplereactions2-50x35.png 50w, https:\/\/support.buildsoft.eu\/wp-content\/uploads\/2018\/09\/concrete_examplereactions2-60x42.png 60w, https:\/\/support.buildsoft.eu\/wp-content\/uploads\/2018\/09\/concrete_examplereactions2-35x24.png 35w\" sizes=\"(max-width: 512px) 100vw, 512px\" \/><\/p>\n<p>Check SLS RC<\/p>\n<ul>\n<li><em>21.44 kN + 99.52 kN + 35.66 kN = 156,6 kN<\/em> = total load<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Example A continuous beam 2 spans 3m 4m rectangular cross-section b=190mm &amp; h=500mm 2 loads: selfweight : 2.38 kN\/m dead load : 20 kN\/m Let us now sum up ULS minimal reactions (we expect the load factor here to be 1) and compare this with the total load total load&#8230;<\/p>\n","protected":false},"author":2,"comment_status":"closed","ping_status":"closed","template":"","format":"standard","meta":[],"ht-kb-category":[54],"ht-kb-tag":[],"_links":{"self":[{"href":"https:\/\/support.buildsoft.eu\/nl\/wp-json\/wp\/v2\/ht-kb\/3511"}],"collection":[{"href":"https:\/\/support.buildsoft.eu\/nl\/wp-json\/wp\/v2\/ht-kb"}],"about":[{"href":"https:\/\/support.buildsoft.eu\/nl\/wp-json\/wp\/v2\/types\/ht_kb"}],"author":[{"embeddable":true,"href":"https:\/\/support.buildsoft.eu\/nl\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/support.buildsoft.eu\/nl\/wp-json\/wp\/v2\/comments?post=3511"}],"version-history":[{"count":3,"href":"https:\/\/support.buildsoft.eu\/nl\/wp-json\/wp\/v2\/ht-kb\/3511\/revisions"}],"predecessor-version":[{"id":3518,"href":"https:\/\/support.buildsoft.eu\/nl\/wp-json\/wp\/v2\/ht-kb\/3511\/revisions\/3518"}],"wp:attachment":[{"href":"https:\/\/support.buildsoft.eu\/nl\/wp-json\/wp\/v2\/media?parent=3511"}],"wp:term":[{"taxonomy":"ht_kb_category","embeddable":true,"href":"https:\/\/support.buildsoft.eu\/nl\/wp-json\/wp\/v2\/ht-kb-category?post=3511"},{"taxonomy":"ht_kb_tag","embeddable":true,"href":"https:\/\/support.buildsoft.eu\/nl\/wp-json\/wp\/v2\/ht-kb-tag?post=3511"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}