{"id":665,"date":"2014-02-25T16:37:11","date_gmt":"2014-02-25T15:37:11","guid":{"rendered":"https:\/\/blogs.ua.es\/jjrr2011\/?p=665"},"modified":"2014-02-25T16:37:11","modified_gmt":"2014-02-25T15:37:11","slug":"tema-4-2","status":"publish","type":"post","link":"https:\/\/blogs.ua.es\/jjrr2011\/2014\/02\/25\/tema-4-2\/","title":{"rendered":"Tema 4. Moments d&#8217;in\u00e8rcia de superf\u00edcies planes"},"content":{"rendered":"<p style=\"text-align: justify\">En aquest cap\u00edtol definirem les caracter\u00edstiques d&#8217;in\u00e8rcia que es poden associar a qualsevol distribuci\u00f3 de masses que estiga continguda en un pla, i que a partir d&#8217;ara denominarem <strong>superf\u00edcie<\/strong> o <strong>secci\u00f3 plana<\/strong>. La justificaci\u00f3 d&#8217;aquest estudi \u00e9s la relaci\u00f3 \u00edntima que hi ha entre el comportament el\u00e0stic dels elements constructius en general i la seua forma. Per tant, caldr\u00e0 entendre les <strong>definicions<\/strong> de <strong>moment d&#8217;in\u00e8rcia<\/strong> d&#8217;una superf\u00edcie plana, de <strong>producte d&#8217;in\u00e8rcia<\/strong> i el <strong>radi de gir<\/strong>.<\/p>\n<p style=\"text-align: justify\">Com a cas particular de l&#8217;equaci\u00f3 del camp de moments d&#8217;in\u00e8rcia, s&#8217;analitzar\u00e0 el cas particular en el qual l&#8217;origen del sistema de refer\u00e8ncia es fa coincidir amb el centre de gravetat de la superf\u00edcie plana:<strong> teorema de Steiner<\/strong> o dels eixos paral\u00b7lels.<\/p>\n<p style=\"text-align: justify\">Finalment, s&#8217;aplicaran a seccions relacionades amb elements constructius com bigues o t\u00fanels.<\/p>\n<p style=\"text-align: justify\">En el <strong>laboratori de f\u00edsica<\/strong> es posar\u00e0 en pr\u00e0ctica els coneixements te\u00f2rics d&#8217;aquest cap\u00edtol per tal de <strong>comprovar<\/strong> <strong>experimentalment el teorema de Steiner<\/strong>.<\/p>\n<p style=\"text-align: justify\">Un document amb un resum del bloc tem\u00e0tic de geometria de masses es pot descarregar des de l&#8217;adre\u00e7a electr\u00f2nica del Repositori Institucional de la Universitat d&#8217;Alacant: <a href=\"http:\/\/rua.ua.es\/dspace\/handle\/10045\/19107\">http:\/\/rua.ua.es\/dspace\/handle\/10045\/19107<\/a>. Podeu consultar la presentaci\u00f3 corresponent a la sessi\u00f3 de teoria de moments d&#8217;in\u00e8rcia en l&#8217;adre\u00e7a electr\u00f2nica <a href=\"http:\/\/hdl.handle.net\/10045\/20985\">http:\/\/hdl.handle.net\/10045\/20985<\/a>.<\/p>\n<p style=\"text-align: justify\"><strong>Bibliografia<\/strong><\/p>\n<p style=\"text-align: justify\">Rodes Roca, J. J., Dur\u00e1 Dom\u00e9nech, A. i Vera Guarinos, J., <em>Fonaments f\u00edsics de les construccions arquitect\u00f2niques<\/em> (Publicacions de la Universitat d&#8217;Alacant, Alacant, 2011). Cap\u00edtol 5.<\/p>\n<p style=\"text-align: justify\">Rodes Roca, J. J., <em>Exercicis i problemes dels fonaments f\u00edsics d&#8217;arquitectura. I. Vectors lliscants i geometria de masses<\/em> (ECU, Alacant, 2009)<\/p>\n<p style=\"text-align: justify\">Tipler, P. A. i Mosca, G., F\u00edsica per a la ci\u00e8ncia i la tecnologia, Volum 1 (Revert\u00e9, Barcelona, 2010). Cap\u00edtols 1 i 12.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>En aquest cap\u00edtol definirem les caracter\u00edstiques d&#8217;in\u00e8rcia que es poden associar a qualsevol distribuci\u00f3 de masses que estiga continguda en un pla, i que a partir d&#8217;ara denominarem superf\u00edcie o secci\u00f3 plana. La justificaci\u00f3 d&#8217;aquest estudi \u00e9s la relaci\u00f3 \u00edntima que hi ha entre el comportament el\u00e0stic dels elements constructius en general i la seua [&hellip;]<\/p>\n","protected":false},"author":2285,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[82858,82859,676],"tags":[135912,91078],"class_list":["post-665","post","type-post","status-publish","format-standard","hentry","category-assignatura-2","category-objectius","category-sin-categoria","tag-ensenyament-aprenentatge","tag-materials"],"_links":{"self":[{"href":"https:\/\/blogs.ua.es\/jjrr2011\/wp-json\/wp\/v2\/posts\/665","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/blogs.ua.es\/jjrr2011\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blogs.ua.es\/jjrr2011\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blogs.ua.es\/jjrr2011\/wp-json\/wp\/v2\/users\/2285"}],"replies":[{"embeddable":true,"href":"https:\/\/blogs.ua.es\/jjrr2011\/wp-json\/wp\/v2\/comments?post=665"}],"version-history":[{"count":3,"href":"https:\/\/blogs.ua.es\/jjrr2011\/wp-json\/wp\/v2\/posts\/665\/revisions"}],"predecessor-version":[{"id":668,"href":"https:\/\/blogs.ua.es\/jjrr2011\/wp-json\/wp\/v2\/posts\/665\/revisions\/668"}],"wp:attachment":[{"href":"https:\/\/blogs.ua.es\/jjrr2011\/wp-json\/wp\/v2\/media?parent=665"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blogs.ua.es\/jjrr2011\/wp-json\/wp\/v2\/categories?post=665"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blogs.ua.es\/jjrr2011\/wp-json\/wp\/v2\/tags?post=665"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}