{"id":17199,"date":"2026-07-23T15:21:18","date_gmt":"2026-07-23T13:21:18","guid":{"rendered":"https:\/\/jansametal.com\/votre-immeuble-resisterait-il-a-un-tremblement-de-terre-ce-que-le-venezuela-nous-rappelle-au-sujet-des-structures-metalliques-en-espagne\/"},"modified":"2026-07-30T14:23:17","modified_gmt":"2026-07-30T12:23:17","slug":"votre-immeuble-resisterait-il-a-un-tremblement-de-terre-ce-que-le-venezuela-nous-rappelle-au-sujet-des-structures-metalliques-en-espagne","status":"publish","type":"post","link":"https:\/\/jansametal.com\/fr\/votre-immeuble-resisterait-il-a-un-tremblement-de-terre-ce-que-le-venezuela-nous-rappelle-au-sujet-des-structures-metalliques-en-espagne\/","title":{"rendered":"Votre immeuble r\u00e9sisterait-il \u00e0 un tremblement de terre ? Ce que le Venezuela nous rappelle au sujet des structures m\u00e9talliques en Espagne"},"content":{"rendered":"\n<div class=\"wp-block-uagb-image uagb-block-fb60d0dd wp-block-uagb-image--layout-default wp-block-uagb-image--effect-static wp-block-uagb-image--align-none\"><figure class=\"wp-block-uagb-image__figure\"><img decoding=\"async\" src=\"https:\/\/jansametal.com\/wp-content\/uploads\/2026\/07\/tremblement-de-terre-1024x576.png\" alt=\"\" class=\"uag-image-17224\" width=\"1024\" height=\"576\" title=\"tremblement de terre\" loading=\"lazy\" role=\"img\" \/><\/figure><\/div>\n\n\n\n<div class=\"wp-block-uagb-advanced-heading uagb-block-93dcd06d\"><h2 class=\"uagb-heading-text\"><strong>Ce qui s&rsquo;est pass\u00e9 au Venezuela et en quoi cela nous concerne<\/strong><\/h2><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">Le 24 juin 2026, le Venezuela a \u00e9t\u00e9 frapp\u00e9 par une double secousse sismique exceptionnelle : un premier s\u00e9isme de magnitude 7,2, suivi \u00e0 peine quelques secondes plus tard par un deuxi\u00e8me s\u00e9isme de magnitude 7,5, tous deux ayant leur \u00e9picentre dans l&rsquo;\u00c9tat de Yaracuy. Les images satellites et les premi\u00e8res \u00e9valuations des d\u00e9g\u00e2ts font \u00e9tat de dizaines de milliers de b\u00e2timents endommag\u00e9s. <\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Toutefois, d&rsquo;un point de vue technique, la magnitude \u00e0 elle seule n&rsquo;explique pas l&rsquo;ampleur des d\u00e9g\u00e2ts.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Les premi\u00e8res \u00e9valuations techniques mettent en \u00e9vidence des facteurs connus depuis des d\u00e9cennies dans le domaine de l&rsquo;ing\u00e9nierie sismique :<\/p>\n\n\n\n<div class=\"wp-block-uagb-icon-list uagb-block-8183136d\"><div class=\"uagb-icon-list__wrap\">\n<div class=\"wp-block-uagb-icon-list-child uagb-block-c998d2c3\"><span class=\"uagb-icon-list__source-wrap\"><svg xmlns=\"https:\/\/www.w3.org\/2000\/svg\" viewbox=\"0 0 512 512\"><path d=\"M256 0C114.6 0 0 114.6 0 256c0 141.4 114.6 256 256 256s256-114.6 256-256C512 114.6 397.4 0 256 0zM406.6 278.6l-103.1 103.1c-12.5 12.5-32.75 12.5-45.25 0s-12.5-32.75 0-45.25L306.8 288H128C110.3 288 96 273.7 96 256s14.31-32 32-32h178.8l-49.38-49.38c-12.5-12.5-12.5-32.75 0-45.25s32.75-12.5 45.25 0l103.1 103.1C414.6 241.3 416 251.1 416 256C416 260.9 414.6 270.7 406.6 278.6z\"><\/path><\/svg><\/span><span class=\"uagb-icon-list__label\"><strong>B\u00e2timents ne r\u00e9pondant pas aux normes sismiques modernes<\/strong>: une grande partie du parc immobilier a \u00e9t\u00e9 con\u00e7ue et construite selon d&rsquo;anciennes normes ou avec des d\u00e9tails structurels qui ne seraient plus consid\u00e9r\u00e9s aujourd&rsquo;hui comme adapt\u00e9s aux zones sismiques.<\/span><\/div>\n\n\n\n<div class=\"wp-block-uagb-icon-list-child uagb-block-a880677b\"><span class=\"uagb-icon-list__source-wrap\"><svg xmlns=\"https:\/\/www.w3.org\/2000\/svg\" viewbox=\"0 0 512 512\"><path d=\"M256 0C114.6 0 0 114.6 0 256c0 141.4 114.6 256 256 256s256-114.6 256-256C512 114.6 397.4 0 256 0zM406.6 278.6l-103.1 103.1c-12.5 12.5-32.75 12.5-45.25 0s-12.5-32.75 0-45.25L306.8 288H128C110.3 288 96 273.7 96 256s14.31-32 32-32h178.8l-49.38-49.38c-12.5-12.5-12.5-32.75 0-45.25s32.75-12.5 45.25 0l103.1 103.1C414.6 241.3 416 251.1 416 256C416 260.9 414.6 270.7 406.6 278.6z\"><\/path><\/svg><\/span><span class=\"uagb-icon-list__label\"><strong>Rez-de-chauss\u00e9e ouverts ou \u00ab \u00e9tages souples \u00bb<\/strong>: de nombreux b\u00e2timents endommag\u00e9s pr\u00e9sentent la configuration classique d&rsquo;un garage ouvert ou d&rsquo;un \u00e9tage commercial au rez-de-chauss\u00e9e, ce qui r\u00e9duit consid\u00e9rablement la rigidit\u00e9 du niveau inf\u00e9rieur. Lorsque cette irr\u00e9gularit\u00e9 structurelle appara\u00eet, le risque de concentration des d\u00e9formations et d\u2019effondrement augmente consid\u00e9rablement. <\/span><\/div>\n\n\n\n<div class=\"wp-block-uagb-icon-list-child uagb-block-748e2c33\"><span class=\"uagb-icon-list__source-wrap\"><svg xmlns=\"https:\/\/www.w3.org\/2000\/svg\" viewbox=\"0 0 512 512\"><path d=\"M256 0C114.6 0 0 114.6 0 256c0 141.4 114.6 256 256 256s256-114.6 256-256C512 114.6 397.4 0 256 0zM406.6 278.6l-103.1 103.1c-12.5 12.5-32.75 12.5-45.25 0s-12.5-32.75 0-45.25L306.8 288H128C110.3 288 96 273.7 96 256s14.31-32 32-32h178.8l-49.38-49.38c-12.5-12.5-12.5-32.75 0-45.25s32.75-12.5 45.25 0l103.1 103.1C414.6 241.3 416 251.1 416 256C416 260.9 414.6 270.7 406.6 278.6z\"><\/path><\/svg><\/span><span class=\"uagb-icon-list__label\"><strong>Probl\u00e8mes li\u00e9s \u00e0 l&rsquo;application et au contr\u00f4le de la r\u00e9glementation<\/strong>: L&rsquo;exp\u00e9rience internationale montre que l&rsquo;existence d&rsquo;une r\u00e9glementation parasismique ne garantit pas toujours que tous les b\u00e2timents existants ou en cours de construction atteignent le niveau de s\u00e9curit\u00e9 pr\u00e9vu. Et c&rsquo;est pr\u00e9cis\u00e9ment l\u00e0 qu&rsquo;appara\u00eet une question importante pour l&rsquo;Espagne. <\/span><\/div>\n<\/div><\/div>\n\n\n\n<h2 class=\"wp-block-heading\" style=\"margin-top:50px;margin-bottom:30px\">D\u00e9mystifier le mythe : l&rsquo;Espagne est bel et bien une zone sismique<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">On pense souvent que les s\u00e9ismes majeurs sont un probl\u00e8me propre au Japon, \u00e0 la Californie ou \u00e0 l&rsquo;Am\u00e9rique latine.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\" style=\"margin-top:-20px;padding-top:0px\">La r\u00e9alit\u00e9 est tout autre.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\" style=\"margin-top:-20px\">L&rsquo;Espagne dispose d&rsquo;une norme sp\u00e9cifique relative \u00e0 la construction parasismique, la <strong>NCSE-02<\/strong>, approuv\u00e9e par le d\u00e9cret royal n\u00b0 997\/2002.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\" style=\"margin-top:-20px\">Son application d\u00e9pend de diff\u00e9rents facteurs :<\/p>\n\n\n\n<div class=\"wp-block-uagb-icon-list uagb-block-fb722bbe\"><div class=\"uagb-icon-list__wrap\">\n<div class=\"wp-block-uagb-icon-list-child uagb-block-12f08382\"><span class=\"uagb-icon-list__source-wrap\"><svg xmlns=\"https:\/\/www.w3.org\/2000\/svg\" viewbox=\"0 0 512 512\"><path d=\"M256 0C114.6 0 0 114.6 0 256c0 141.4 114.6 256 256 256s256-114.6 256-256C512 114.6 397.4 0 256 0zM406.6 278.6l-103.1 103.1c-12.5 12.5-32.75 12.5-45.25 0s-12.5-32.75 0-45.25L306.8 288H128C110.3 288 96 273.7 96 256s14.31-32 32-32h178.8l-49.38-49.38c-12.5-12.5-12.5-32.75 0-45.25s32.75-12.5 45.25 0l103.1 103.1C414.6 241.3 416 251.1 416 256C416 260.9 414.6 270.7 406.6 278.6z\"><\/path><\/svg><\/span><span class=\"uagb-icon-list__label\">Acc\u00e9l\u00e9ration sismique de base.<\/span><\/div>\n\n\n\n<div class=\"wp-block-uagb-icon-list-child uagb-block-b093fc16\"><span class=\"uagb-icon-list__source-wrap\"><svg xmlns=\"https:\/\/www.w3.org\/2000\/svg\" viewbox=\"0 0 512 512\"><path d=\"M256 0C114.6 0 0 114.6 0 256c0 141.4 114.6 256 256 256s256-114.6 256-256C512 114.6 397.4 0 256 0zM406.6 278.6l-103.1 103.1c-12.5 12.5-32.75 12.5-45.25 0s-12.5-32.75 0-45.25L306.8 288H128C110.3 288 96 273.7 96 256s14.31-32 32-32h178.8l-49.38-49.38c-12.5-12.5-12.5-32.75 0-45.25s32.75-12.5 45.25 0l103.1 103.1C414.6 241.3 416 251.1 416 256C416 260.9 414.6 270.7 406.6 278.6z\"><\/path><\/svg><\/span><span class=\"uagb-icon-list__label\">Utilisation du b\u00e2timent.<\/span><\/div>\n\n\n\n<div class=\"wp-block-uagb-icon-list-child uagb-block-429fe553\"><span class=\"uagb-icon-list__source-wrap\"><svg xmlns=\"https:\/\/www.w3.org\/2000\/svg\" viewbox=\"0 0 512 512\"><path d=\"M256 0C114.6 0 0 114.6 0 256c0 141.4 114.6 256 256 256s256-114.6 256-256C512 114.6 397.4 0 256 0zM406.6 278.6l-103.1 103.1c-12.5 12.5-32.75 12.5-45.25 0s-12.5-32.75 0-45.25L306.8 288H128C110.3 288 96 273.7 96 256s14.31-32 32-32h178.8l-49.38-49.38c-12.5-12.5-12.5-32.75 0-45.25s32.75-12.5 45.25 0l103.1 103.1C414.6 241.3 416 251.1 416 256C416 260.9 414.6 270.7 406.6 278.6z\"><\/path><\/svg><\/span><span class=\"uagb-icon-list__label\">Typologie structurelle.<\/span><\/div>\n\n\n\n<div class=\"wp-block-uagb-icon-list-child uagb-block-d5d24357\"><span class=\"uagb-icon-list__source-wrap\"><svg xmlns=\"https:\/\/www.w3.org\/2000\/svg\" viewbox=\"0 0 512 512\"><path d=\"M256 0C114.6 0 0 114.6 0 256c0 141.4 114.6 256 256 256s256-114.6 256-256C512 114.6 397.4 0 256 0zM406.6 278.6l-103.1 103.1c-12.5 12.5-32.75 12.5-45.25 0s-12.5-32.75 0-45.25L306.8 288H128C110.3 288 96 273.7 96 256s14.31-32 32-32h178.8l-49.38-49.38c-12.5-12.5-12.5-32.75 0-45.25s32.75-12.5 45.25 0l103.1 103.1C414.6 241.3 416 251.1 416 256C416 260.9 414.6 270.7 406.6 278.6z\"><\/path><\/svg><\/span><span class=\"uagb-icon-list__label\">Hauteur du b\u00e2timent.<\/span><\/div>\n<\/div><\/div>\n\n\n\n<figure class=\"wp-block-image size-full is-resized\" style=\"margin-top:20px\"><img decoding=\"async\" width=\"850\" height=\"568\" src=\"https:\/\/jansametal.com\/wp-content\/uploads\/2026\/07\/calculo-sismico-estructura.webp\" alt=\"\" class=\"wp-image-17007\" style=\"width:600px\" srcset=\"https:\/\/jansametal.com\/wp-content\/uploads\/2026\/07\/calculo-sismico-estructura.webp 850w, https:\/\/jansametal.com\/wp-content\/uploads\/2026\/07\/calculo-sismico-estructura-300x200.webp 300w, https:\/\/jansametal.com\/wp-content\/uploads\/2026\/07\/calculo-sismico-estructura-768x513.webp 768w\" sizes=\"(max-width: 850px) 100vw, 850px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Les zones pr\u00e9sentant le plus grand risque sismique se concentrent principalement dans :<\/p>\n\n\n\n<div class=\"wp-block-uagb-icon-list uagb-block-a5576ff4\"><div class=\"uagb-icon-list__wrap\">\n<div class=\"wp-block-uagb-icon-list-child uagb-block-e99f42aa\"><span class=\"uagb-icon-list__source-wrap\"><svg xmlns=\"https:\/\/www.w3.org\/2000\/svg\" viewbox=\"0 0 512 512\"><path d=\"M256 0C114.6 0 0 114.6 0 256c0 141.4 114.6 256 256 256s256-114.6 256-256C512 114.6 397.4 0 256 0zM406.6 278.6l-103.1 103.1c-12.5 12.5-32.75 12.5-45.25 0s-12.5-32.75 0-45.25L306.8 288H128C110.3 288 96 273.7 96 256s14.31-32 32-32h178.8l-49.38-49.38c-12.5-12.5-12.5-32.75 0-45.25s32.75-12.5 45.25 0l103.1 103.1C414.6 241.3 416 251.1 416 256C416 260.9 414.6 270.7 406.6 278.6z\"><\/path><\/svg><\/span><span class=\"uagb-icon-list__label\">Grenade.<\/span><\/div>\n\n\n\n<div class=\"wp-block-uagb-icon-list-child uagb-block-1f861fc7\"><span class=\"uagb-icon-list__source-wrap\"><svg xmlns=\"https:\/\/www.w3.org\/2000\/svg\" viewBox=\"0 0 512 512\"><path d=\"M256 0C114.6 0 0 114.6 0 256c0 141.4 114.6 256 256 256s256-114.6 256-256C512 114.6 397.4 0 256 0zM406.6 278.6l-103.1 103.1c-12.5 12.5-32.75 12.5-45.25 0s-12.5-32.75 0-45.25L306.8 288H128C110.3 288 96 273.7 96 256s14.31-32 32-32h178.8l-49.38-49.38c-12.5-12.5-12.5-32.75 0-45.25s32.75-12.5 45.25 0l103.1 103.1C414.6 241.3 416 251.1 416 256C416 260.9 414.6 270.7 406.6 278.6z\"><\/path><\/svg><\/span><span class=\"uagb-icon-list__label\">M\u00e1laga.<\/span><\/div>\n\n\n\n<div class=\"wp-block-uagb-icon-list-child uagb-block-c6aec436\"><span class=\"uagb-icon-list__source-wrap\"><svg xmlns=\"https:\/\/www.w3.org\/2000\/svg\" viewBox=\"0 0 512 512\"><path d=\"M256 0C114.6 0 0 114.6 0 256c0 141.4 114.6 256 256 256s256-114.6 256-256C512 114.6 397.4 0 256 0zM406.6 278.6l-103.1 103.1c-12.5 12.5-32.75 12.5-45.25 0s-12.5-32.75 0-45.25L306.8 288H128C110.3 288 96 273.7 96 256s14.31-32 32-32h178.8l-49.38-49.38c-12.5-12.5-12.5-32.75 0-45.25s32.75-12.5 45.25 0l103.1 103.1C414.6 241.3 416 251.1 416 256C416 260.9 414.6 270.7 406.6 278.6z\"><\/path><\/svg><\/span><span class=\"uagb-icon-list__label\">Almer\u00eda.<\/span><\/div>\n\n\n\n<div class=\"wp-block-uagb-icon-list-child uagb-block-a2e67bbc\"><span class=\"uagb-icon-list__source-wrap\"><svg xmlns=\"https:\/\/www.w3.org\/2000\/svg\" viewbox=\"0 0 512 512\"><path d=\"M256 0C114.6 0 0 114.6 0 256c0 141.4 114.6 256 256 256s256-114.6 256-256C512 114.6 397.4 0 256 0zM406.6 278.6l-103.1 103.1c-12.5 12.5-32.75 12.5-45.25 0s-12.5-32.75 0-45.25L306.8 288H128C110.3 288 96 273.7 96 256s14.31-32 32-32h178.8l-49.38-49.38c-12.5-12.5-12.5-32.75 0-45.25s32.75-12.5 45.25 0l103.1 103.1C414.6 241.3 416 251.1 416 256C416 260.9 414.6 270.7 406.6 278.6z\"><\/path><\/svg><\/span><span class=\"uagb-icon-list__label\">Murcie.<\/span><\/div>\n\n\n\n<div class=\"wp-block-uagb-icon-list-child uagb-block-a4144d77\"><span class=\"uagb-icon-list__source-wrap\"><svg xmlns=\"https:\/\/www.w3.org\/2000\/svg\" viewBox=\"0 0 512 512\"><path d=\"M256 0C114.6 0 0 114.6 0 256c0 141.4 114.6 256 256 256s256-114.6 256-256C512 114.6 397.4 0 256 0zM406.6 278.6l-103.1 103.1c-12.5 12.5-32.75 12.5-45.25 0s-12.5-32.75 0-45.25L306.8 288H128C110.3 288 96 273.7 96 256s14.31-32 32-32h178.8l-49.38-49.38c-12.5-12.5-12.5-32.75 0-45.25s32.75-12.5 45.25 0l103.1 103.1C414.6 241.3 416 251.1 416 256C416 260.9 414.6 270.7 406.6 278.6z\"><\/path><\/svg><\/span><span class=\"uagb-icon-list__label\">Alicante.<\/span><\/div>\n\n\n\n<div class=\"wp-block-uagb-icon-list-child uagb-block-4747c06d\"><span class=\"uagb-icon-list__source-wrap\"><svg xmlns=\"https:\/\/www.w3.org\/2000\/svg\" viewbox=\"0 0 512 512\"><path d=\"M256 0C114.6 0 0 114.6 0 256c0 141.4 114.6 256 256 256s256-114.6 256-256C512 114.6 397.4 0 256 0zM406.6 278.6l-103.1 103.1c-12.5 12.5-32.75 12.5-45.25 0s-12.5-32.75 0-45.25L306.8 288H128C110.3 288 96 273.7 96 256s14.31-32 32-32h178.8l-49.38-49.38c-12.5-12.5-12.5-32.75 0-45.25s32.75-12.5 45.25 0l103.1 103.1C414.6 241.3 416 251.1 416 256C416 260.9 414.6 270.7 406.6 278.6z\"><\/path><\/svg><\/span><span class=\"uagb-icon-list__label\">Une partie de Huelva.<\/span><\/div>\n<\/div><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">Mais il existe \u00e9galement des zones soumises \u00e0 des exigences sismiques dans des r\u00e9gions telles que la Catalogne, la Communaut\u00e9 valencienne, la Navarre ou les Pyr\u00e9n\u00e9es.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\" style=\"margin-top:-20px\">En d&rsquo;autres termes : la conception parasismique n&rsquo;est pas une pr\u00e9occupation propre au sud de l&rsquo;Espagne.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\" style=\"margin-top:-20px\">Par ailleurs, le s\u00e9isme de Lorca de 2011 a mis en \u00e9vidence la n\u00e9cessit\u00e9 de continuer \u00e0 faire \u00e9voluer la r\u00e9glementation et de l&rsquo;aligner progressivement sur les crit\u00e8res les plus avanc\u00e9s de l&rsquo;Eurocode 8.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" style=\"padding-top:50px\">Ce que le Japon nous apprend en mati\u00e8re de construction parasismique<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">En mati\u00e8re d&rsquo;ing\u00e9nierie sismique, le Japon reste la r\u00e9f\u00e9rence mondiale.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\" style=\"margin-top:-20px\">Il est d&rsquo;ailleurs int\u00e9ressant de constater que l&rsquo;\u00e9volution de l&rsquo;ing\u00e9nierie japonaise ne s&rsquo;est pas limit\u00e9e \u00e0 la construction de b\u00e2timents plus r\u00e9sistants.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\" style=\"margin-top:-20px\">L&rsquo;objectif actuel est bien plus ambitieux : <strong>emp\u00eacher l&rsquo;\u00e9nergie du s\u00e9isme d&rsquo;atteindre la structure<\/strong>.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\" style=\"margin-top:-20px\">Les trois grandes strat\u00e9gies actuellement mises en \u0153uvre sont les suivantes :<\/p>\n\n\n\n<div class=\"wp-block-uagb-advanced-heading uagb-block-60e51e17\"><h3 class=\"uagb-heading-text\">Taishin : r\u00e9sister au s\u00e9isme<\/h3><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">La structure r\u00e9siste aux forces sismiques gr\u00e2ce \u00e0 des \u00e9l\u00e9ments de r\u00e9sistance sp\u00e9cialement dimensionn\u00e9s \u00e0 cet effet.<\/p>\n\n\n\n<div class=\"wp-block-uagb-advanced-heading uagb-block-0308f226\"><h3 class=\"uagb-heading-text\">Seishin : dissiper l&rsquo;\u00e9nergie<\/h3><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">Le b\u00e2timent est \u00e9quip\u00e9 d&rsquo;amortisseurs et de dissipateurs qui absorbent une partie de l&rsquo;\u00e9nergie g\u00e9n\u00e9r\u00e9e par le s\u00e9isme.<\/p>\n\n\n\n<div class=\"wp-block-uagb-advanced-heading uagb-block-495220e6\"><h3 class=\"uagb-heading-text\">Menshin : isolation sismique<\/h3><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">La structure est physiquement d\u00e9coupl\u00e9e du sol gr\u00e2ce \u00e0 des isolateurs sp\u00e9ciaux install\u00e9s \u00e0 la base, ce qui r\u00e9duit consid\u00e9rablement les acc\u00e9l\u00e9rations transmises au b\u00e2timent.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Le message est clair :<\/p>\n\n\n\n<div class=\"wp-block-uagb-blockquote uagb-block-fec40418 uagb-blockquote__skin-border uagb-blockquote__stack-img-none\"><blockquote class=\"uagb-blockquote\"><div class=\"uagb-blockquote__content\">Les pays les plus avanc\u00e9s en mati\u00e8re d&rsquo;ing\u00e9nierie sismique sont pass\u00e9s du concept traditionnel de \u00ab r\u00e9sistance aux s\u00e9ismes \u00bb \u00e0 des syst\u00e8mes capables de dissiper l&rsquo;\u00e9nergie ou d&rsquo;isoler le b\u00e2timent des mouvements du sol. Dans ce contexte, la grande ductilit\u00e9 et la l\u00e9g\u00e8ret\u00e9 des structures m\u00e9talliques en font l\u2019une des solutions les plus efficaces pour la conception antisismique moderne. <\/div><footer><div class=\"uagb-blockquote__author-wrap uagb-blockquote__author-at-left\"><cite class=\"uagb-blockquote__author\">Nom de l&rsquo;auteur<\/cite><\/div><\/footer><\/blockquote><\/div>\n\n\n\n<div class=\"wp-block-uagb-image aligncenter uagb-block-e2c9cb1a wp-block-uagb-image--layout-default wp-block-uagb-image--effect-static wp-block-uagb-image--align-center\"><figure class=\"wp-block-uagb-image__figure\"><img decoding=\"async\" src=\"https:\/\/jansametal.com\/wp-content\/uploads\/2026\/07\/matiere-de-construction-1024x576.png\" alt=\"\" class=\"uag-image-17229\" width=\"1672\" height=\"941\" title=\"mati\u00e8re de construction\" loading=\"lazy\" role=\"img\" \/><\/figure><\/div>\n\n\n\n<h2 class=\"wp-block-heading\" style=\"padding-top:50px\">Pourquoi l&rsquo;acier pr\u00e9sente-t-il des avantages en mati\u00e8re de r\u00e9sistance aux s\u00e9ismes ?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Le principal avantage de l&rsquo;acier par rapport aux autres syst\u00e8mes structurels porte un nom technique :<\/p>\n\n\n\n<div class=\"wp-block-uagb-advanced-heading uagb-block-bd3d8e98\"><h3 class=\"uagb-heading-text\">Ductilit\u00e9<\/h3><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">Une structure ductile est capable de subir des d\u00e9formations importantes avant d&rsquo;atteindre le point de rupture, absorbant et dissipant ainsi l&rsquo;\u00e9nergie pendant le s\u00e9isme.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\" style=\"margin-top:-20px\">En termes simples :<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>L&rsquo;acier ne cherche pas \u00e0 \u00eatre totalement rigide. Il cherche \u00e0 se d\u00e9former de mani\u00e8re contr\u00f4l\u00e9e. <\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\" style=\"margin-top:-20px\">C&rsquo;est pr\u00e9cis\u00e9ment cette capacit\u00e9 de d\u00e9formation qui permet \u00e0 de nombreux b\u00e2timents de rester debout m\u00eame lors de secousses sismiques extr\u00eamement violentes.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\" style=\"margin-top:-20px\">L&rsquo;ing\u00e9nierie sismique moderne privil\u00e9gie les syst\u00e8mes structurels hautement ductiles, dans lesquels l&rsquo;acier pr\u00e9sente des avantages significatifs par rapport au b\u00e9ton arm\u00e9 classique.<\/p>\n\n\n\n<div class=\"wp-block-uagb-advanced-heading uagb-block-48fd68fd\"><h3 class=\"uagb-heading-text\">Avantages de la structure m\u00e9tallique dans une zone sismique<\/h3><\/div>\n\n\n\n<div class=\"wp-block-uagb-container uagb-block-401a3b22 alignfull uagb-is-root-container\"><div class=\"uagb-container-inner-blocks-wrap\">\n<div class=\"wp-block-uagb-advanced-heading uagb-block-04044681\"><h4 class=\"uagb-heading-text\">* <strong>Grande ductilit\u00e9<\/strong><\/h4><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">Il permet d&rsquo;importantes d\u00e9formations avant la rupture.<\/p>\n\n\n\n<div class=\"wp-block-uagb-advanced-heading uagb-block-04044681\"><h4 class=\"uagb-heading-text\">* <strong>Poids \u00e0 vide r\u00e9duit<\/strong><\/h4><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">Une masse r\u00e9duite implique des forces sismiques moindres exerc\u00e9es sur la structure et les fondations.<\/p>\n\n\n\n<div class=\"wp-block-uagb-advanced-heading uagb-block-3184b99f\"><h4 class=\"uagb-heading-text\">* <strong>Contr\u00f4le qualit\u00e9<\/strong><\/h4><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">La fabrication en atelier permet un meilleur contr\u00f4le des dimensions et de la r\u00e9alisation.<\/p>\n\n\n\n<div class=\"wp-block-uagb-advanced-heading uagb-block-526857e6\"><h4 class=\"uagb-heading-text\">* <strong>Facilit\u00e9 de renforcement<\/strong><\/h4><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">Les interventions ult\u00e9rieures s&rsquo;av\u00e8rent plus simples que dans de nombreuses structures en b\u00e9ton.<\/p>\n\n\n\n<div class=\"wp-block-uagb-advanced-heading uagb-block-d4a2ff64\"><h4 class=\"uagb-heading-text\">* <strong><strong>Compatibilit\u00e9 avec les syst\u00e8mes avanc\u00e9s<\/strong><\/strong><\/h4><\/div>\n\n\n\n<p class=\"wp-block-paragraph\" style=\"padding-left:1px\">Les syst\u00e8mes m\u00e9talliques se pr\u00eatent particuli\u00e8rement bien aux solutions de dissipation et d&rsquo;isolation sismique.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\" style=\"margin-top:-40px;padding-top:0px\">Le facteur \u00ab poids \u00bb rev\u00eat une importance particuli\u00e8re.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\" style=\"margin-top:-40px\">La force sismique qui s&rsquo;exerce sur une structure d\u00e9pend directement de sa masse.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\" style=\"margin-top:-40px\">Une structure m\u00e9tallique est g\u00e9n\u00e9ralement nettement plus l\u00e9g\u00e8re qu&rsquo;une solution \u00e9quivalente en b\u00e9ton, ce qui r\u00e9duit les forces auxquelles elle doit r\u00e9sister en cas de tremblement de terre.<\/p>\n<\/div><\/div>\n\n\n\n<h2 class=\"wp-block-heading\" style=\"margin-top:50px\">L&rsquo;erreur la plus courante : penser que l&rsquo;acier \u00e0 lui seul r\u00e9sout le probl\u00e8me<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Il convient ici d&rsquo;\u00eatre clair.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\" style=\"margin-top:-20px\"><strong>Une structure m\u00e9tallique n&rsquo;est pas automatiquement une structure antisismique.<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\" style=\"margin-top:-20px\">La qualit\u00e9 du design reste un facteur d\u00e9terminant.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\" style=\"margin-top:-20px\">Les points critiques sont les suivants :<\/p>\n\n\n\n<div class=\"wp-block-uagb-advanced-heading uagb-block-276d3068\"><h3 class=\"uagb-heading-text\">Joints<\/h3><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">Lors d&rsquo;un tremblement de terre, les joints sont g\u00e9n\u00e9ralement les zones les plus sollicit\u00e9es.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\" style=\"margin-top:-20px\">Une conception d\u00e9ficiente peut compromettre le comportement global de l&rsquo;ensemble de la structure.<\/p>\n\n\n\n<div class=\"wp-block-uagb-advanced-heading uagb-block-5d33aad0\"><h3 class=\"uagb-heading-text\">Contreventements<\/h3><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">Les croisillons de Saint-Andr\u00e9, les diagonales, les syst\u00e8mes concentriques ou excentriques pr\u00e9sentent des comportements diff\u00e9rents et doivent \u00eatre choisis en fonction des objectifs de conception.<\/p>\n\n\n\n<div class=\"wp-block-uagb-advanced-heading uagb-block-8fa82387\"><h3 class=\"uagb-heading-text\">R\u00e9gularit\u00e9 structurelle<\/h3><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">Les irr\u00e9gularit\u00e9s au niveau de la disposition ou de la hauteur peuvent entra\u00eener des concentrations d&rsquo;efforts et des d\u00e9formations.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\" style=\"margin-top:-20px\">C&rsquo;est exactement le probl\u00e8me que l&rsquo;on observe chez de nombreuses plantes \u00e0 tige souple.<\/p>\n\n\n\n<div class=\"wp-block-uagb-advanced-heading uagb-block-abcb439e\"><h3 class=\"uagb-heading-text\">Terrain<\/h3><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">Deux b\u00e2timents identiques peuvent se comporter de mani\u00e8re tr\u00e8s diff\u00e9rente selon le type de sol sur lequel ils reposent.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\" style=\"margin-top:-20px\">Les sols meubles ont tendance \u00e0 amplifier l&rsquo;action sismique.<\/p>\n\n\n\n<div class=\"wp-block-uagb-advanced-heading uagb-block-9ada9684\"><h2 class=\"uagb-heading-text\"> <br>Que faisons-nous chez Jansa Metal ?<\/h2><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">Chez Jansa Metal, nous concevons, fabriquons et montons des structures m\u00e9talliques en tenant compte des exigences sismiques lorsque le projet l&rsquo;exige.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\" style=\"margin-top:-20px\">Nous pouvons :<\/p>\n\n\n\n<div class=\"wp-block-uagb-icon-list uagb-block-77dfeccc\"><div class=\"uagb-icon-list__wrap\">\n<div class=\"wp-block-uagb-icon-list-child uagb-block-8aeedbaa\"><span class=\"uagb-icon-list__source-wrap\"><svg xmlns=\"https:\/\/www.w3.org\/2000\/svg\" viewbox=\"0 0 512 512\"><path d=\"M256 0C114.6 0 0 114.6 0 256c0 141.4 114.6 256 256 256s256-114.6 256-256C512 114.6 397.4 0 256 0zM406.6 278.6l-103.1 103.1c-12.5 12.5-32.75 12.5-45.25 0s-12.5-32.75 0-45.25L306.8 288H128C110.3 288 96 273.7 96 256s14.31-32 32-32h178.8l-49.38-49.38c-12.5-12.5-12.5-32.75 0-45.25s32.75-12.5 45.25 0l103.1 103.1C414.6 241.3 416 251.1 416 256C416 260.9 414.6 270.7 406.6 278.6z\"><\/path><\/svg><\/span><span class=\"uagb-icon-list__label\">Effectuer des calculs de structure en tenant compte de l&rsquo;action sismique conform\u00e9ment \u00e0 la norme NCSE-02 et \u00e0 l&rsquo;Eurocode 8.<\/span><\/div>\n\n\n\n<div class=\"wp-block-uagb-icon-list-child uagb-block-8b800d6a\"><span class=\"uagb-icon-list__source-wrap\"><svg xmlns=\"https:\/\/www.w3.org\/2000\/svg\" viewbox=\"0 0 512 512\"><path d=\"M256 0C114.6 0 0 114.6 0 256c0 141.4 114.6 256 256 256s256-114.6 256-256C512 114.6 397.4 0 256 0zM406.6 278.6l-103.1 103.1c-12.5 12.5-32.75 12.5-45.25 0s-12.5-32.75 0-45.25L306.8 288H128C110.3 288 96 273.7 96 256s14.31-32 32-32h178.8l-49.38-49.38c-12.5-12.5-12.5-32.75 0-45.25s32.75-12.5 45.25 0l103.1 103.1C414.6 241.3 416 251.1 416 256C416 260.9 414.6 270.7 406.6 278.6z\"><\/path><\/svg><\/span><span class=\"uagb-icon-list__label\">Concevoir des assemblages sp\u00e9cifiques pour la r\u00e9sistance aux s\u00e9ismes.<\/span><\/div>\n\n\n\n<div class=\"wp-block-uagb-icon-list-child uagb-block-29ba2b1f\"><span class=\"uagb-icon-list__source-wrap\"><svg xmlns=\"https:\/\/www.w3.org\/2000\/svg\" viewbox=\"0 0 512 512\"><path d=\"M256 0C114.6 0 0 114.6 0 256c0 141.4 114.6 256 256 256s256-114.6 256-256C512 114.6 397.4 0 256 0zM406.6 278.6l-103.1 103.1c-12.5 12.5-32.75 12.5-45.25 0s-12.5-32.75 0-45.25L306.8 288H128C110.3 288 96 273.7 96 256s14.31-32 32-32h178.8l-49.38-49.38c-12.5-12.5-12.5-32.75 0-45.25s32.75-12.5 45.25 0l103.1 103.1C414.6 241.3 416 251.1 416 256C416 260.9 414.6 270.7 406.6 278.6z\"><\/path><\/svg><\/span><span class=\"uagb-icon-list__label\">Dimensionner les syst\u00e8mes de contreventement et de dissipation d&rsquo;\u00e9nergie.<\/span><\/div>\n\n\n\n<div class=\"wp-block-uagb-icon-list-child uagb-block-af28bb61\"><span class=\"uagb-icon-list__source-wrap\"><svg xmlns=\"https:\/\/www.w3.org\/2000\/svg\" viewbox=\"0 0 512 512\"><path d=\"M256 0C114.6 0 0 114.6 0 256c0 141.4 114.6 256 256 256s256-114.6 256-256C512 114.6 397.4 0 256 0zM406.6 278.6l-103.1 103.1c-12.5 12.5-32.75 12.5-45.25 0s-12.5-32.75 0-45.25L306.8 288H128C110.3 288 96 273.7 96 256s14.31-32 32-32h178.8l-49.38-49.38c-12.5-12.5-12.5-32.75 0-45.25s32.75-12.5 45.25 0l103.1 103.1C414.6 241.3 416 251.1 416 256C416 260.9 414.6 270.7 406.6 278.6z\"><\/path><\/svg><\/span><span class=\"uagb-icon-list__label\">\u00c9tudier les renforts antisismiques \u00e0 l&rsquo;aide d&rsquo;une structure m\u00e9tallique.<\/span><\/div>\n\n\n\n<div class=\"wp-block-uagb-icon-list-child uagb-block-a5b811c4\"><span class=\"uagb-icon-list__source-wrap\"><svg xmlns=\"https:\/\/www.w3.org\/2000\/svg\" viewbox=\"0 0 512 512\"><path d=\"M256 0C114.6 0 0 114.6 0 256c0 141.4 114.6 256 256 256s256-114.6 256-256C512 114.6 397.4 0 256 0zM406.6 278.6l-103.1 103.1c-12.5 12.5-32.75 12.5-45.25 0s-12.5-32.75 0-45.25L306.8 288H128C110.3 288 96 273.7 96 256s14.31-32 32-32h178.8l-49.38-49.38c-12.5-12.5-12.5-32.75 0-45.25s32.75-12.5 45.25 0l103.1 103.1C414.6 241.3 416 251.1 416 256C416 260.9 414.6 270.7 406.6 278.6z\"><\/path><\/svg><\/span><span class=\"uagb-icon-list__label\">Collaborer avec les bureaux d&rsquo;\u00e9tudes et les architectes d\u00e8s les premi\u00e8res phases du projet.<\/span><\/div>\n<\/div><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">Nous en faisons la demande chaque fois que la r\u00e9glementation l&rsquo;exige.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Et, dans de nombreux cas, nous le recommandons m\u00eame lorsque cela n&rsquo;est pas obligatoire, car la conformit\u00e9 r\u00e9glementaire correspond \u00e0 un minimum l\u00e9gal, et non n\u00e9cessairement au niveau de s\u00e9curit\u00e9 le plus \u00e9lev\u00e9 possible.<\/p>\n\n\n\n<div class=\"wp-block-uagb-container uagb-block-10f85894 alignfull uagb-is-root-container\"><div class=\"uagb-container-inner-blocks-wrap\">\n<div class=\"wp-block-uagb-advanced-heading uagb-block-1e54eb49\"><h2 class=\"uagb-heading-text\"><strong>Conclusion<\/strong><\/h2><\/div>\n\n\n\n<p class=\"has-cyan-bluish-gray-color has-text-color has-link-color wp-elements-8898048fede6a350eba5d355bd6fffa0 wp-block-paragraph\" style=\"margin-bottom:-10px\">Les r\u00e9cents s\u00e9ismes au Venezuela rappellent une r\u00e9alit\u00e9 que les ing\u00e9nieurs connaissent depuis des d\u00e9cennies : la s\u00e9curit\u00e9 sismique d\u00e9pend \u00e0 la fois de la conception structurelle, de la qualit\u00e9 de la construction et du choix du syst\u00e8me de r\u00e9sistance. Dans ce contexte, la ductilit\u00e9 \u00e9lev\u00e9e et la l\u00e9g\u00e8ret\u00e9 de l\u2019acier en font l\u2019une des solutions les plus efficaces pour r\u00e9duire la vuln\u00e9rabilit\u00e9 des b\u00e2timents face aux s\u00e9ismes. <\/p>\n\n\n\n<p class=\"has-cyan-bluish-gray-color has-text-color has-link-color wp-elements-3fd0f9a3d840a9cdb01009c7777bc609 wp-block-paragraph\">L&rsquo;Espagne dispose d&rsquo;une r\u00e9glementation sismique et compte des zones o\u00f9 le calcul de la r\u00e9sistance sismique est obligatoire. Cependant, divers sp\u00e9cialistes soulignent la n\u00e9cessit\u00e9 d&rsquo;actualiser le cadre r\u00e9glementaire et d&rsquo;acc\u00e9l\u00e9rer l&rsquo;alignement sur les crit\u00e8res les plus avanc\u00e9s de l&rsquo;Eurocode 8. Amadeo Benavent, professeur de structures \u00e0 l\u2019Universit\u00e9 polytechnique de Madrid, est all\u00e9 jusqu\u2019\u00e0 souligner que la r\u00e9glementation espagnole est obsol\u00e8te et qu\u2019un s\u00e9isme pr\u00e9sentant des caract\u00e9ristiques similaires \u00e0 celui qui s\u2019est produit au Venezuela pourrait avoir des cons\u00e9quences tr\u00e8s graves dans certaines des zones les plus expos\u00e9es au risque sismique du pays.  <\/p>\n\n\n\n<p class=\"has-cyan-bluish-gray-color has-text-color has-link-color wp-elements-74f6d9bdac61dd191a9167100e08e573 wp-block-paragraph\">Et si les pays pionniers comme le Japon nous enseignent bien une chose, c&rsquo;est que l&rsquo;avenir de la construction parasismique passe par des structures capables de se d\u00e9former, de dissiper l&rsquo;\u00e9nergie et de r\u00e9duire les forces transmises par le sol.<\/p>\n\n\n\n<p class=\"has-cyan-bluish-gray-color has-text-color has-link-color wp-elements-cd89d5d413678a6d0f6c5e9ffa29c840 wp-block-paragraph\">Gr\u00e2ce \u00e0 sa ductilit\u00e9, \u00e0 sa l\u00e9g\u00e8ret\u00e9 et \u00e0 sa capacit\u00e9 d&rsquo;adaptation aux technologies sismiques les plus avanc\u00e9es, la structure m\u00e9tallique figure parmi les solutions les plus efficaces actuellement disponibles.<\/p>\n\n\n\n<p class=\"has-ast-global-color-5-color has-text-color has-link-color wp-elements-7ef1e714d29a955f632bea7922a9ebd1 wp-block-paragraph\" style=\"margin-bottom:-10px\"><strong>Avez-vous un projet dans une zone sismique ou souhaitez-vous v\u00e9rifier si votre b\u00e2timent n\u00e9cessite une \u00e9tude sp\u00e9cifique ? Contactez l&rsquo;\u00e9quipe technique de Jansa Metal et nous vous aiderons \u00e0 d\u00e9terminer la solution la mieux adapt\u00e9e \u00e0 votre situation. <\/strong><\/p>\n\n\n\n<div class=\"wp-block-uagb-buttons uagb-buttons__outer-wrap uagb-btn__default-btn uagb-btn-tablet__default-btn uagb-btn-mobile__default-btn uagb-block-52a7d396\"><div class=\"uagb-buttons__wrap uagb-buttons-layout-wrap \">\n<div class=\"wp-block-uagb-buttons-child uagb-buttons__outer-wrap uagb-block-c5373bd5 wp-block-button\"><div class=\"uagb-button__wrapper\"><a class=\"uagb-buttons-repeater wp-block-button__link\" aria-label=\"\" href=\"https:\/\/jansametal.com\/fr\/quel-est-votre-projet\/\" rel=\"follow noopener\" target=\"_self\" role=\"button\"><div class=\"uagb-button__link\">Votre projet est-il pr\u00eat \u00e0 faire face \u00e0 un s\u00e9isme ?  <strong>N&rsquo;h\u00e9sitez pas \u00e0 nous contacter.<\/strong><\/div><\/a><\/div><\/div>\n<\/div><\/div>\n<\/div><\/div>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Ce qui s&rsquo;est pass\u00e9 au Venezuela et en quoi cela nous concerne Le 24 juin 2026, le Venezuela a \u00e9t\u00e9 frapp\u00e9 par une double secousse sismique exceptionnelle : un premier s\u00e9isme de magnitude 7,2, suivi \u00e0 peine quelques secondes plus tard par un deuxi\u00e8me s\u00e9isme de magnitude 7,5, tous deux ayant leur \u00e9picentre dans l&rsquo;\u00c9tat [&hellip;]<\/p>\n","protected":false},"author":4,"featured_media":17224,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_uag_custom_page_level_css":"","site-sidebar-layout":"default","site-content-layout":"","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":"disabled","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center 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