{"id":94722,"date":"2025-12-09T08:46:49","date_gmt":"2025-12-09T08:46:49","guid":{"rendered":"https:\/\/www.gantner-instruments.com\/blog\/surveillance-du-nouveau-pont-metropolitain-de-400-metres-de-porto\/"},"modified":"2026-03-24T09:09:30","modified_gmt":"2026-03-24T09:09:30","slug":"surveillance-du-nouveau-pont-metropolitain-de-400-metres-de-porto","status":"publish","type":"post","link":"https:\/\/www.gantner-instruments.com\/fr\/blog\/surveillance-du-nouveau-pont-metropolitain-de-400-metres-de-porto\/","title":{"rendered":"Surveillance du nouveau pont m\u00e9tropolitain de 400 m\u00e8tres de Porto"},"content":{"rendered":"\n<figure class=\"wp-block-image size-large\"><a href=\"https:\/\/www.gantner-instruments.com\/wp-content\/uploads\/2025\/12\/g-palacio-scaled.jpg\" data-rel=\"lightbox-gallery-a8URm5QQ\" data-rl_title=\"\" data-rl_caption=\"\" title=\"\"><img fetchpriority=\"high\" decoding=\"async\" width=\"1024\" height=\"576\" src=\"https:\/\/www.gantner-instruments.com\/wp-content\/uploads\/2025\/12\/g-palacio-scaled-1024x576.jpg\" alt=\"Un pont blanc moderne enjambe une rivi&#xE8;re, avec des maisons et des arbres le long des rives, sous un ciel clair.\" class=\"wp-image-94012\" srcset=\"https:\/\/www.gantner-instruments.com\/wp-content\/uploads\/2025\/12\/g-palacio-scaled-1024x576.jpg 1024w, https:\/\/www.gantner-instruments.com\/wp-content\/uploads\/2025\/12\/g-palacio-scaled-300x169.jpg 300w, https:\/\/www.gantner-instruments.com\/wp-content\/uploads\/2025\/12\/g-palacio-scaled-768x432.jpg 768w, https:\/\/www.gantner-instruments.com\/wp-content\/uploads\/2025\/12\/g-palacio-scaled-1244x700.jpg 1244w, https:\/\/www.gantner-instruments.com\/wp-content\/uploads\/2025\/12\/g-palacio-scaled.jpg 1600w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/a><figcaption class=\"wp-element-caption\">Ponte Ferreirinha : la nouvelle travers\u00e9e du Douro \u00e0 Porto<\/figcaption><\/figure>\n\n<div style=\"height:30px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n<h3 class=\"wp-block-heading\">Des d\u00e9fis uniques en mati\u00e8re de construction<\/h3>\n\n<p>La conception du Ponte Ferreirinha pr\u00e9sente plusieurs d\u00e9fis structurels importants. Sa trav\u00e9e principale de 428,60 m\u00e8tres n\u00e9cessite des appuis en dehors du lit du fleuve pour prot\u00e9ger l&#8217;environnement, ce qui complique la r\u00e9partition des charges et la conception des fondations. Les berges abruptes et les b\u00e2timents voisins limitent l&#8217;emplacement des piliers et exigent une structure hautement efficace avec de longues trav\u00e9es lat\u00e9rales. La superstructure \u00e9lanc\u00e9e du pont, d&#8217;une hauteur de 75 m\u00e8tres, en b\u00e9ton arm\u00e9 pr\u00e9contraint \u00e0 profondeur variable, soutenue par de longues jambes de force inclin\u00e9es, doit rester stable sous l&#8217;effet du vent, des forces sismiques et d&#8217;une forte compression. La construction repose sur des techniques de porte-\u00e0-faux \u00e9quilibr\u00e9 avec des haubans temporaires, tout en minimisant les interf\u00e9rences avec le fleuve Douro et les infrastructures environnantes.    <\/p>\n\n<figure class=\"wp-block-image size-large\"><a href=\"https:\/\/www.gantner-instruments.com\/wp-content\/uploads\/2025\/12\/g-arrabida-scaled.jpg\" data-rel=\"lightbox-gallery-a8URm5QQ\" data-rl_title=\"\" data-rl_caption=\"\" title=\"\"><img decoding=\"async\" width=\"1024\" height=\"576\" src=\"https:\/\/www.gantner-instruments.com\/wp-content\/uploads\/2025\/12\/g-arrabida-scaled-1024x576.jpg\" alt=\"Un grand pont en arc sur une rivi&#xE8;re calme, avec un autre pont visible au loin.\" class=\"wp-image-94017\" srcset=\"https:\/\/www.gantner-instruments.com\/wp-content\/uploads\/2025\/12\/g-arrabida-scaled-1024x576.jpg 1024w, https:\/\/www.gantner-instruments.com\/wp-content\/uploads\/2025\/12\/g-arrabida-scaled-300x169.jpg 300w, https:\/\/www.gantner-instruments.com\/wp-content\/uploads\/2025\/12\/g-arrabida-scaled-768x432.jpg 768w, https:\/\/www.gantner-instruments.com\/wp-content\/uploads\/2025\/12\/g-arrabida-scaled-1244x700.jpg 1244w, https:\/\/www.gantner-instruments.com\/wp-content\/uploads\/2025\/12\/g-arrabida-scaled.jpg 1600w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/a><\/figure>\n\n<div style=\"height:30px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n<h3 class=\"wp-block-heading\">L&#8217;importance de la surveillance de la sant\u00e9 des structures<\/h3>\n\n<p>La construction de structures complexes n\u00e9cessite une surveillance continue \u00e0 l&#8217;aide de syst\u00e8mes en ligne qui assurent un contr\u00f4le permanent. Dans ce contexte, un syst\u00e8me de surveillance de l&#8217;\u00e9tat des structures (SHM) offre plusieurs avantages cl\u00e9s : <\/p>\n\n<ul class=\"wp-block-list\">\n<li><strong>La s\u00e9curit\u00e9 avant tout :<\/strong> D\u00e9tecte les d\u00e9viations, les vibrations ou les tensions de c\u00e2ble anormales afin de prot\u00e9ger les travailleurs et l&#8217;\u00e9quipement.<\/li>\n\n\n\n<li><strong>Construction support: <\/strong>Guides the safe advancement of cantilever segments and the tensioning of temporary cable stays.<\/li>\n\n\n\n<li><strong>Gain de temps et d&#8217;argent :<\/strong> Identifie rapidement les contraintes excessives ou les d\u00e9fauts d&#8217;alignement, \u00e9vitant ainsi les retards et les reprises co\u00fbteuses.<\/li>\n\n\n\n<li><strong>Validation de la conception :<\/strong> Confirme que le pont se comporte comme pr\u00e9vu sous diverses charges, forces \u00e9oliennes et sismiques.<\/li>\n<\/ul>\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n<h3 class=\"wp-block-heading\">Mise en place d&#8217;un syst\u00e8me DAQ robuste<\/h3>\n\n<p>Pour obtenir ces avantages, <a href=\"https:\/\/perfectdecibel.pt\/\">PerfectDecibel<\/a>, le partenaire de Gantner Instruments au Portugal, a \u00e9t\u00e9 consult\u00e9 pour concevoir un syst\u00e8me d&#8217;acquisition de donn\u00e9es (DAQ) capable de r\u00e9pondre aux exigences \u00e9lev\u00e9es du projet :<\/p>\n\n<ul class=\"wp-block-list\">\n<li><strong>\u00c9volutivit\u00e9<\/strong>: La construction se d\u00e9roulant en cinq phases, le syst\u00e8me DAQ doit s&#8217;\u00e9tendre de mani\u00e8re transparente au fur et \u00e0 mesure de l&#8217;ach\u00e8vement de nouveaux \u00e9l\u00e9ments structurels.<\/li>\n\n\n\n<li><strong>Couverture distribu\u00e9e<\/strong>: Les modules DAQ doivent \u00eatre install\u00e9s \u00e0 proximit\u00e9 des capteurs r\u00e9partis sur plusieurs centaines de m\u00e8tres, ce qui permet de minimiser les longueurs de c\u00e2ble et de r\u00e9duire les bruits parasites.<\/li>\n\n\n\n<li><strong>Fonctionnement continu<\/strong>: Le syst\u00e8me doit fonctionner de mani\u00e8re autonome 24 heures sur 24, 7 jours sur 7, et assurer une surveillance fiable dans des conditions environnementales et de construction variables.<\/li>\n<\/ul>\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n<h3 class=\"wp-block-heading\">Points forts techniques<\/h3>\n\n<p>Le syst\u00e8me est dot\u00e9 d&#8217;une configuration Q.bloxx \u00e0 200 canaux pour surveiller la d\u00e9formation, le d\u00e9placement, la temp\u00e9rature et l&#8217;acc\u00e9l\u00e9ration. Il fournit des mesures distribu\u00e9es et synchronis\u00e9es dans le temps \u00e0 partir de plusieurs types de capteurs en utilisant des CAN 24 bits sur chaque canal. Chaque module comprend un conditionnement de signal pr\u00e9\u00e9tabli, de multiples options de filtrage et une isolation galvanique \u00e0 trois voies pour garantir des donn\u00e9es stables et exemptes d&#8217;interf\u00e9rences.  <\/p>\n\n<figure class=\"wp-block-image size-large\"><a href=\"https:\/\/www.gantner-instruments.com\/wp-content\/uploads\/2025\/12\/modules.jpg\" data-rel=\"lightbox-gallery-a8URm5QQ\" data-rl_title=\"\" data-rl_caption=\"\" title=\"\"><img decoding=\"async\" width=\"1024\" height=\"749\" src=\"https:\/\/www.gantner-instruments.com\/wp-content\/uploads\/2025\/12\/modules.jpg\" alt=\"Gantner Instruments Q.bloxx et modules de mesure &#xE9;lectronique connexes dispos&#xE9;s sur une table, y compris des unit&#xE9;s d'interface, des composants en bo&#xEE;te et des connecteurs.\" class=\"wp-image-94021\" srcset=\"https:\/\/www.gantner-instruments.com\/wp-content\/uploads\/2025\/12\/modules.jpg 1024w, https:\/\/www.gantner-instruments.com\/wp-content\/uploads\/2025\/12\/modules-300x219.jpg 300w, https:\/\/www.gantner-instruments.com\/wp-content\/uploads\/2025\/12\/modules-768x562.jpg 768w, https:\/\/www.gantner-instruments.com\/wp-content\/uploads\/2025\/12\/modules-957x700.jpg 957w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/a><\/figure>\n\n<div style=\"height:30px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n<p>Con\u00e7u pour fonctionner de mani\u00e8re autonome, le syst\u00e8me fonctionne comme un syst\u00e8me d&#8217;acquisition de donn\u00e9es autonome avec une capacit\u00e9 de mise sous tension automatique, fonctionnant ind\u00e9pendamment d&#8217;un PC tout en g\u00e9rant toutes les t\u00e2ches critiques, y compris le traitement des donn\u00e9es, le stockage local et la mise en m\u00e9moire tampon, afin de garantir une surveillance continue et fiable tout au long du processus de construction.<\/p>\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n<figure class=\"wp-block-image size-large\"><a href=\"https:\/\/www.gantner-instruments.com\/wp-content\/uploads\/2025\/12\/layout.jpg\" data-rel=\"lightbox-gallery-a8URm5QQ\" data-rl_title=\"\" data-rl_caption=\"\" title=\"\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"507\" src=\"https:\/\/www.gantner-instruments.com\/wp-content\/uploads\/2025\/12\/layout.jpg\" alt=\"Sch&#xE9;ma de r&#xE9;seau montrant plusieurs modules Gantner Instruments interconnect&#xE9;s via Ethernet, bus de terrain RS-485 et convertisseurs de fibre optique RS-485.\" class=\"wp-image-94025\" srcset=\"https:\/\/www.gantner-instruments.com\/wp-content\/uploads\/2025\/12\/layout.jpg 1024w, https:\/\/www.gantner-instruments.com\/wp-content\/uploads\/2025\/12\/layout-300x149.jpg 300w, https:\/\/www.gantner-instruments.com\/wp-content\/uploads\/2025\/12\/layout-768x380.jpg 768w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/a><\/figure>\n\n<div style=\"height:30px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n<p>Fiber-optic communication enables distributed measurement, with sampling rates of 1 minute for strain, displacement, and temperature, and 100 Hz for vibrations. Vibrating wire sensors are integrated via Modbus, and data are stored locally and continuously sent to a remote server for real-time monitoring and analysis. <\/p>\n\n<p>Avec le syst\u00e8me DAQ de Gantner Instruments, les ing\u00e9nieurs peuvent prendre des d\u00e9cisions bas\u00e9es sur des donn\u00e9es, assurant une construction s\u00fbre et efficace tout en prot\u00e9geant les travailleurs, l&#8217;\u00e9quipement et la ligne d&#8217;horizon embl\u00e9matique de Porto.<\/p>\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n<h3 class=\"wp-block-heading\">Pleins feux sur les produits<\/h3>\n\n<figure class=\"wp-block-image size-large\"><a href=\"https:\/\/www.gantner-instruments.com\/support-downloads\/product-datasheets\/?gidl_type=Product+data+sheets\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"386\" src=\"https:\/\/www.gantner-instruments.com\/wp-content\/uploads\/2025\/12\/screenshot-2025-12-11-105439-1024x386.png\" alt=\"Quatre modules d'acquisition de donn&#xE9;es Gantner Instruments Q.bloxx : un module de r&#xE9;sistance\/RTD (A105), un module d'entr&#xE9;e universel (A107), un module de tension (A108) et un module de vibration (A111 BNC)\" class=\"wp-image-94166\" srcset=\"https:\/\/www.gantner-instruments.com\/wp-content\/uploads\/2025\/12\/screenshot-2025-12-11-105439-1024x386.png 1024w, https:\/\/www.gantner-instruments.com\/wp-content\/uploads\/2025\/12\/screenshot-2025-12-11-105439-300x113.png 300w, https:\/\/www.gantner-instruments.com\/wp-content\/uploads\/2025\/12\/screenshot-2025-12-11-105439-768x290.png 768w, https:\/\/www.gantner-instruments.com\/wp-content\/uploads\/2025\/12\/screenshot-2025-12-11-105439.png 1220w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/a><figcaption class=\"wp-element-caption\">Modules d&#8217;acquisition de donn\u00e9es Gantner Instruments Q.bloxx : un module de r\u00e9sistance\/RTD (A105), un module d&#8217;entr\u00e9e universel (A107), un module de tension (A108) et un module de vibration (A111 BNC)<\/figcaption><\/figure>\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n<div style=\"height:40px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Porto \u00e9tend son r\u00e9seau de m\u00e9tro, et l&#8217;un des principaux d\u00e9fis consistait \u00e0 construire une nouvelle travers\u00e9e du fleuve Douro qui am\u00e9liore la mobilit\u00e9 sans perturber le paysage de ponts embl\u00e9matique de la ville. Le r\u00e9sultat est le Ponte Ferreirinha, un pont \u00e9lanc\u00e9 \u00e0 ossature en b\u00e9ton qui transporte des rames de m\u00e9tro, des cyclistes et des pi\u00e9tons, et qui s&#8217;int\u00e8gre parfaitement dans un environnement urbain dense.  <\/p>\n","protected":false},"author":19,"featured_media":94293,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[125],"tags":[],"class_list":["post-94722","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-histoires-de-reussite"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Surveillance du nouveau pont m\u00e9tropolitain de 400 m\u00e8tres de Porto - Gantner Instruments<\/title>\n<meta name=\"description\" content=\"Les technologies avanc\u00e9es SHM et DAQ garantissent la s\u00e9curit\u00e9 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