{"id":46739,"date":"2021-10-19T14:12:43","date_gmt":"2021-10-19T14:12:43","guid":{"rendered":"https:\/\/elregionalvm.com.ar\/noticias-villa-maria\/?p=46739"},"modified":"2021-10-21T00:01:22","modified_gmt":"2021-10-21T00:01:22","slug":"tiempo-loco-en-pampa-y-la-via-ojo-con-las-temperaturas-extremas","status":"publish","type":"post","link":"https:\/\/elregionalvm.com.ar\/noticias-villa-maria\/tiempo-loco-en-pampa-y-la-via-ojo-con-las-temperaturas-extremas\/","title":{"rendered":"[Tiempo Loco] En Pampa y la v\u00eda: \u00a1Ojo con las temperaturas extremas!"},"content":{"rendered":"\n<p><\/p>\n\n\n\n<p><strong>Escribe: Ing. Hern\u00e1n Allasia<\/strong><\/p>\n\n\n\n<p><\/p>\n\n\n\n<p><\/p>\n\n\n\n<p>En las v\u00edas de tren, siempre se deja un peque\u00f1o espacio en la uni\u00f3n de las diferentes gu\u00edas de ellas. Este hecho no es una casualidad, sino que tiene una explicaci\u00f3n t\u00e9cnica para evitar que se produzcan ciertos fallos.<\/p>\n\n\n\n<p>Es muy importante tener en cuenta los efectos de la dilataci\u00f3n t\u00e9rmica producida por las altas temperaturas. Asimismo, es importante tambi\u00e9n tener en cuenta las contracciones provocadas por bajas temperaturas.<\/p>\n\n\n\n<p>De esta forma, si las v\u00edas estuviesen unidas de forma continua estas sufrir\u00edan constantes esfuerzos internos de tracci\u00f3n y compresi\u00f3n. Tracci\u00f3n con el aumento de temperatura al dilatarse y contracci\u00f3n con la disminuci\u00f3n de temperatura.<\/p>\n\n\n\n<p>Por esta raz\u00f3n, es com\u00fan utilizar las llamadas juntas de dilataci\u00f3n. Lo que ocurre principalmente, es que, debido a la variaci\u00f3n de temperatura la estructura interna de las v\u00edas se somete a esfuerzos internos que luchan en contra de su situaci\u00f3n de reposo.<\/p>\n\n\n\n<p><\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img data-recalc-dims=\"1\" fetchpriority=\"high\" decoding=\"async\" width=\"1024\" height=\"578\" src=\"https:\/\/i0.wp.com\/elregionalvm.com.ar\/noticias-villa-maria\/wp-content\/uploads\/2021\/10\/Vias-de-tren-dobladas-2.jpg?resize=1024%2C578&#038;ssl=1\" alt=\"\" class=\"wp-image-46740\" srcset=\"https:\/\/i0.wp.com\/elregionalvm.com.ar\/noticias-villa-maria\/wp-content\/uploads\/2021\/10\/Vias-de-tren-dobladas-2.jpg?resize=1024%2C578&amp;ssl=1 1024w, https:\/\/i0.wp.com\/elregionalvm.com.ar\/noticias-villa-maria\/wp-content\/uploads\/2021\/10\/Vias-de-tren-dobladas-2.jpg?resize=300%2C169&amp;ssl=1 300w, https:\/\/i0.wp.com\/elregionalvm.com.ar\/noticias-villa-maria\/wp-content\/uploads\/2021\/10\/Vias-de-tren-dobladas-2.jpg?resize=768%2C433&amp;ssl=1 768w, https:\/\/i0.wp.com\/elregionalvm.com.ar\/noticias-villa-maria\/wp-content\/uploads\/2021\/10\/Vias-de-tren-dobladas-2.jpg?w=1200&amp;ssl=1 1200w\" sizes=\"(max-width: 1000px) 100vw, 1000px\" \/><\/figure>\n\n\n\n<p><\/p>\n\n\n\n<p><strong>Caliente, caliente<\/strong><\/p>\n\n\n\n<p>Cuando estos esfuerzos alcanzan un valor extremo, se produce la deformaci\u00f3n espont\u00e1nea de la estructura llev\u00e1ndola a una nueva situaci\u00f3n de reposo. Un ejemplo de ello fue un hecho ocurrido a 20 km de Fr\u00edas, Santiago del Estero, un 5 de enero de 2017.<\/p>\n\n\n\n<p>Una formaci\u00f3n ferroviaria del Belgrano Cargas descarril\u00f3 por la extraordinaria dilataci\u00f3n de las v\u00edas producto de la ola de calor que castig\u00f3 desde al menos una semana a la provincia, donde el term\u00f3metro lleg\u00f3 en algunos casos a los 55 grados cent\u00edgrados.<\/p>\n\n\n\n<p>\u00abLas v\u00edas se desplazaron m\u00e1s de dos metros hacia la izquierda (con direcci\u00f3n norte a sur) lo que ocasion\u00f3 que, al paso del tren, alcanzaron a pasar siete vagones y a partir del octavo hacia el final de la formaci\u00f3n descarrilaron, sin que lleguen a caerse, pero s\u00ed se enterraron en la caliente tierra suelta\u00bb, se indic\u00f3 entonces.<\/p>\n\n\n\n<p><\/p>\n\n\n\n<p><strong><em>Fuentes:<\/em><\/strong><\/p>\n\n\n\n<p><\/p>\n\n\n\n<ul class=\"wp-block-list\"><li><a href=\"https:\/\/aprendecienciaytecnologia.com\/2016\/11\/18\/efecto-de-la-dilatacion-termicaen-vias-de-tren-pandeo\/\">https:\/\/aprendecienciaytecnologia.com\/2016\/11\/18\/efecto-de-la-dilatacion-termicaen-vias-de-tren-pandeo\/<\/a><\/li><\/ul>\n\n\n\n<ul class=\"wp-block-list\"><li><a href=\"https:\/\/www.infobae.com\/sociedad\/2017\/01\/05\/el-intenso-calor-doblo-las-vias-yprovoco-el-descarrilamiento-de-un-tren-en-santiago-del-estero\/\">https:\/\/www.infobae.com\/sociedad\/2017\/01\/05\/el-intenso-calor-doblo-las-vias-yprovoco-el-descarrilamiento-de-un-tren-en-santiago-del-estero\/<\/a><\/li><\/ul>\n","protected":false},"excerpt":{"rendered":"<p>Escribe: Ing. Hern\u00e1n Allasia En las v\u00edas de tren, siempre se deja un peque\u00f1o espacio en la uni\u00f3n de las diferentes gu\u00edas de ellas. Este hecho no es una casualidad, sino que tiene una explicaci\u00f3n t\u00e9cnica para evitar que se produzcan ciertos fallos. Es muy importante tener en cuenta los efectos de la dilataci\u00f3n t\u00e9rmica [&hellip;]<\/p>\n","protected":false},"author":4,"featured_media":46741,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"default","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"default","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"_jetpack_memberships_contains_paid_content":false,"_joinchat":[],"footnotes":""},"categories":[4777,3557],"tags":[4742,11709,10760,11708,11707,8700,2702,7398],"class_list":["post-46739","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-econotas","category-tercera","tag-calor","tag-dilatacion","tag-hernan-allasia","tag-pampa-y-la-via","tag-temperaturas-extremas","tag-tiempo-loco","tag-tren","tag-vias-de-tren"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.7 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>[Tiempo Loco] En Pampa y la v\u00eda: \u00a1Ojo con las temperaturas extremas! - El Regional<\/title>\n<meta name=\"description\" content=\"Debido a la variaci\u00f3n de temperatura la estructura interna de las v\u00edas se somete a esfuerzos internos y se doblan. 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