{"id":9366,"date":"2022-05-11T15:23:15","date_gmt":"2022-05-11T15:23:15","guid":{"rendered":"https:\/\/support.buildsoft.eu\/?post_type=ht_kb&#038;p=9366"},"modified":"2023-06-06T13:00:54","modified_gmt":"2023-06-06T13:00:54","slug":"why-do-diamonds-and-concrete-use-%ce%b8-31","status":"publish","type":"ht_kb","link":"https:\/\/support.buildsoft.eu\/nl\/knowledge-base\/why-do-diamonds-and-concrete-use-%ce%b8-31\/","title":{"rendered":"Why do Diamonds and ConCrete use \u03b8 = 31\u00b0?"},"content":{"rendered":"<p>The choice of \u03b8 largely determines the amount of shear reinforcement. If you want to minimize the amount of shear reinforcement, you should choose the lowest allowed \u03b8-value.<\/p>\n<p>But you also have to take the increase in longitudinal reinforcement into account. Low \u03b8-values \u200b\u200brequire more longitudinal reinforcement and cause anchoring problems at the beam ends. Often resulting in additional bars to meet the anchoring conditions.<\/p>\n<p>Thus a low\u00a0\u03b8-value doesn&#8217;t result in an economical optimal concrete strut.<\/p>\n<p>The results of practical and theoretical reaseach on this matter have been published in a paper from R. Manuoi and J. Rondal, &#8220;<em>Optimal shear design of beams with CEB-FIB Model Code<\/em>&#8216;. From this paper the choice\u00a0\u03b8 = 31\u00b0 appears to be the most optimal solution.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>The choice of \u03b8 largely determines the amount of shear reinforcement. If you want to minimize the amount of shear reinforcement, you should choose the lowest allowed \u03b8-value. But you also have to take the increase in longitudinal reinforcement into account. Low \u03b8-values \u200b\u200brequire more longitudinal reinforcement and cause anchoring&#8230;<\/p>\n","protected":false},"author":3,"comment_status":"closed","ping_status":"closed","template":"","format":"standard","meta":[],"ht-kb-category":[54,68],"ht-kb-tag":[1160,1152,1161,1151],"_links":{"self":[{"href":"https:\/\/support.buildsoft.eu\/nl\/wp-json\/wp\/v2\/ht-kb\/9366"}],"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\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/support.buildsoft.eu\/nl\/wp-json\/wp\/v2\/comments?post=9366"}],"version-history":[{"count":2,"href":"https:\/\/support.buildsoft.eu\/nl\/wp-json\/wp\/v2\/ht-kb\/9366\/revisions"}],"predecessor-version":[{"id":9368,"href":"https:\/\/support.buildsoft.eu\/nl\/wp-json\/wp\/v2\/ht-kb\/9366\/revisions\/9368"}],"wp:attachment":[{"href":"https:\/\/support.buildsoft.eu\/nl\/wp-json\/wp\/v2\/media?parent=9366"}],"wp:term":[{"taxonomy":"ht_kb_category","embeddable":true,"href":"https:\/\/support.buildsoft.eu\/nl\/wp-json\/wp\/v2\/ht-kb-category?post=9366"},{"taxonomy":"ht_kb_tag","embeddable":true,"href":"https:\/\/support.buildsoft.eu\/nl\/wp-json\/wp\/v2\/ht-kb-tag?post=9366"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}