{"id":9392,"date":"2025-08-26T16:35:19","date_gmt":"2025-08-26T14:35:19","guid":{"rendered":"https:\/\/pontedimessina.it\/torri-portanti\/"},"modified":"2025-10-06T19:25:29","modified_gmt":"2025-10-06T17:25:29","slug":"supporting-towers","status":"publish","type":"page","link":"https:\/\/pontedimessina.it\/en\/supporting-towers\/","title":{"rendered":"Supporting Towers"},"content":{"rendered":"<div class=\"wpb-content-wrapper\"><p>[vc_row][vc_column][vc_empty_space height=&#8221;35px&#8221;]<div style=\"margin-left: auto;margin-right: auto;text-align: center;\" id=\"ponte-3645453020\"><a href=\"https:\/\/pontedimessina.it\/it\/visibility\/\" aria-label=\"ICC Digital Media | Ponte di Messina\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/pontedimessina.it\/wp-content\/uploads\/2025\/10\/banner-icc-connection.png\" alt=\"ICC Digital Media | Ponte di Messina\"  srcset=\"https:\/\/pontedimessina.it\/wp-content\/uploads\/2025\/10\/banner-icc-connection.png 764w, https:\/\/pontedimessina.it\/wp-content\/uploads\/2025\/10\/banner-icc-connection-350x49.png 350w, https:\/\/pontedimessina.it\/wp-content\/uploads\/2025\/10\/banner-icc-connection-600x83.png 600w\" sizes=\"auto, (max-width: 764px) 100vw, 764px\" width=\"764\" height=\"106\"  style=\"display: inline-block;\" \/><\/a><\/div>[vc_empty_space height=&#8221;35px&#8221;][\/vc_column][\/vc_row][vc_row css=&#8221;.vc_custom_1463499713574{margin-bottom: 10px !important;}&#8221;][vc_column width=&#8221;1\/2&#8243; css=&#8221;.vc_custom_1463499493091{margin-right: 0px !important;padding-right: 0px !important;}&#8221;]<div class=\"mgt-promo-block black-text text-size-normal no-darken mgt-promo-block-74687184617 wpb_content_element\" data-style=\"background-color: #f5f5f5;width: 100%; height: 400px;\"><div class=\"mgt-promo-block-content\"><div class=\"mgt-promo-block-content-inside vc_custom_1759769614889\">\n<h4>Bridge of Messina<\/h4>\n<h2><strong>The Protagonists<\/strong><\/h2>\nThe supporting towers of the Messina Bridge are the true protagonists of the project \u2014 symbols of strength and ingenuity. They sustain the cables and suspended deck, transmitting immense forces from traffic, wind, and seismic activity to the ground. Designed with advanced materials and monumental foundations, they form the technological heart of the bridge and a new Mediterranean landmark reshaping the landscape between Sicily and Calabria.<\/div><\/div><\/div>[\/vc_column][vc_column width=&#8221;1\/2&#8243; css=&#8221;.vc_custom_1463499505870{margin-left: 0px !important;padding-left: 0px !important;}&#8221;]<div class=\"mgt-promo-block white-text cover-image text-size-normal no-darken mgt-promo-block-24893773906 wpb_content_element\" data-style=\"background-image: url(https:\/\/pontedimessina.it\/wp-content\/uploads\/2025\/09\/img-47-en.jpg);background-repeat: no-repeat;width: 100%; height: 400px;\"><div class=\"mgt-promo-block-content\"><div class=\"mgt-promo-block-content-inside\"><\/div><\/div><\/div>[\/vc_column][\/vc_row][vc_row][vc_column][vc_empty_space height=&#8221;30px&#8221;][\/vc_column][\/vc_row][vc_row css=&#8221;.vc_custom_1460536155154{margin-right: -25px !important;margin-left: -15px !important;}&#8221;][vc_column][vc_images_carousel images=&#8221;7310,7256,7240,7188,7178&#8243; img_size=&#8221;full&#8221; slides_per_view=&#8221;3&#8243; hide_pagination_control=&#8221;yes&#8221; wrap=&#8221;yes&#8221; css=&#8221;.vc_custom_1758712767835{margin-left: -10px !important;}&#8221;][vc_empty_space height=&#8221;30px&#8221;][\/vc_column][\/vc_row][vc_row][vc_column]<div class=\"mgt-header-block clearfix text-left text-black wpb_content_element  mgt-header-block-style-1 mgt-header-texttransform-none  vc_custom_1759769645703\"><h2 class=\"mgt-header-block-title\">The supporting towers of the Messina Bridge<\/h2><p class=\"mgt-header-block-subtitle\">Bridge of Messina<\/p><div class=\"mgt-header-line\"><\/div><\/div>[vc_column_text css=&#8221;.vc_custom_1759771471318{margin-bottom: 10px !important;}&#8221;]<strong>The supporting towers<\/strong> of the Bridge represent one of <strong>the most spectacular and complex elements of the entire infrastructure<\/strong> \u2013 true pillars of engineering that embody the synthesis of technological innovation, structural integrity, and landscape harmony. These <strong>colossal structures<\/strong> are tasked with supporting the cable system and the suspended deck, transferring to the ground the enormous stresses generated by the structure&#8217;s self-weight, road and rail traffic, as well as the wind actions and seismic events characteristic of the Strait area.<\/p>\n<p>Their design is not the product of a single study, but the <strong>result of decades of research,<\/strong> modelling, and experimentation conducted by the most prominent structural engineering centres in Italy and abroad. Designers compared different solutions and analysed the towers&#8217; behaviour under extreme scenarios, drawing inspiration from the <strong>world&#8217;s most advanced structures<\/strong>, such as the Akashi Kaiky\u014d Bridge in Japan, the Great Belt Bridge in Denmark, or the Golden Gate Bridge in San Francisco.<\/p>\n<p>The towers of the Messina Bridge <strong>do not merely represent static supports<\/strong>; they are engineered to <strong>interact dynamically with the surrounding environmen<\/strong>t. Their slender form, refined through wind tunnel tests and sophisticated digital models, minimises turbulence and allows for optimal load distribution. The choice of materials \u2013 high-strength steels and special concretes treated for marine corrosion resistance \u2013 ensures durability and reliability even under the most demanding conditions.[\/vc_column_text][\/vc_column][\/vc_row][vc_row css=&#8221;.vc_custom_1757179242300{padding-top: 20px !important;padding-bottom: 20px !important;}&#8221;][vc_column][vc_separator css=&#8221;.vc_custom_1757442699868{margin-bottom: 0px !important;padding-top: 20px !important;padding-bottom: 20px !important;}&#8221;][\/vc_column][\/vc_row][vc_row][vc_column]<div class=\"mgt-header-block clearfix text-left text-black wpb_animate_when_almost_visible wpb_bottom-to-top wpb_content_element  mgt-header-block-style-1 mgt-header-texttransform-none  vc_custom_1759769659767\"><h2 class=\"mgt-header-block-title\">HIGHLIGHT<\/h2><p class=\"mgt-header-block-subtitle\">Bridge of Messina<\/p><div class=\"mgt-header-line\"><\/div><\/div>[\/vc_column][\/vc_row][vc_row][vc_column width=&#8221;1\/3&#8243;]<div class=\"mgt-icon-box wpb_content_element wpb_animate_when_almost_visible wpb_appear mgt-icon-box-right mgt-icon-fa mgt-icon-background mgt-icon-background-invert text-black \"><div class=\"mgt-icon-box-icon hvr-icon-push\"><div class=\"mgt-font-icon\"><i class=\"fa fa-spinner\"><\/i><\/div><\/div><div class=\"mgt-icon-box-content\"><h6>Height of pylons<\/h6><h5>399 m<\/h5><\/div><div class=\"clearfix\"><\/div><\/div>[\/vc_column][vc_column width=&#8221;1\/3&#8243;]<div class=\"mgt-icon-box wpb_content_element wpb_animate_when_almost_visible wpb_appear mgt-icon-box-right mgt-icon-fa mgt-icon-background mgt-icon-background-invert text-black \"><div class=\"mgt-icon-box-icon hvr-icon-push\"><div class=\"mgt-font-icon\"><i class=\"fa fa-spinner\"><\/i><\/div><\/div><div class=\"mgt-icon-box-content\"><h6>Wind gusts up to<\/h6><h5>300 k\/h - 162 Knots<\/h5><\/div><div class=\"clearfix\"><\/div><\/div>[\/vc_column][vc_column width=&#8221;1\/3&#8243;]<div class=\"mgt-icon-box wpb_content_element wpb_animate_when_almost_visible wpb_appear mgt-icon-box-right mgt-icon-fa mgt-icon-background mgt-icon-background-invert text-black \"><div class=\"mgt-icon-box-icon hvr-icon-push\"><div class=\"mgt-font-icon\"><i class=\"fa fa-spinner\"><\/i><\/div><\/div><div class=\"mgt-icon-box-content\"><h6>Materials<\/h6><h5>High-strength steels<\/h5><\/div><div class=\"clearfix\"><\/div><\/div>[\/vc_column][\/vc_row][vc_row css=&#8221;.vc_custom_1757443588362{padding-top: 0px !important;padding-bottom: 20px !important;}&#8221;][vc_column][vc_separator css=&#8221;.vc_custom_1759400388855{margin-bottom: 0px !important;padding-top: 30px !important;padding-bottom: 30px !important;}&#8221;]<div style=\"margin-left: auto;margin-right: auto;text-align: center;\" id=\"ponte-3958323154\"><script async src=\"\/\/pagead2.googlesyndication.com\/pagead\/js\/adsbygoogle.js?client=ca-pub-8905959201982646\" crossorigin=\"anonymous\"><\/script><ins class=\"adsbygoogle\" style=\"display:block;\" data-ad-client=\"ca-pub-8905959201982646\" \ndata-ad-slot=\"6695237606\" \ndata-ad-format=\"auto\"><\/ins>\n<script> \n(adsbygoogle = window.adsbygoogle || []).push({}); \n<\/script>\n<\/div>[vc_separator css=&#8221;.vc_custom_1759400455067{margin-bottom: 0px !important;padding-top: 30px !important;padding-bottom: 30px !important;}&#8221;][\/vc_column][\/vc_row][vc_row][vc_column][vc_empty_space height=&#8221;20px&#8221;]<div class=\"mgt-header-block clearfix text-left text-black wpb_animate_when_almost_visible wpb_left-to-right wpb_content_element  mgt-header-block-style-1 mgt-header-texttransform-none  vc_custom_1759769769149\"><h2 class=\"mgt-header-block-title\">IN DETAIL<\/h2><p class=\"mgt-header-block-subtitle\">Bridge of Messina<\/p><\/div>[vc_empty_space height=&#8221;20px&#8221;][\/vc_column][\/vc_row][vc_row][vc_column]<div class=\"mgt-header-block clearfix text-left text-black wpb_animate_when_almost_visible wpb_left-to-right wpb_content_element  mgt-header-block-style-1 mgt-header-texttransform-none  vc_custom_1759770585106\"><h2 class=\"mgt-header-block-title\">Dimensions and structural characteristics<\/h2><p class=\"mgt-header-block-subtitle\">Bridge of Messina<\/p><div class=\"mgt-header-line\"><\/div><\/div>[\/vc_column][\/vc_row][vc_row][vc_column width=&#8221;4\/5&#8243;][vc_column_text css=&#8221;.vc_custom_1759769861734{margin-bottom: 0px !important;}&#8221;]<\/p>\n<p class=\"ds-markdown-paragraph\">The pylons \u2014 often referred to as towers \u2014 will reach a height of approximately 399 meters, ranking them among the tallest structures ever built for a suspension bridge. Each tower consists of two parallel shafts connected by horizontal and diagonal cross-beams, providing torsional stability and resistance to asymmetric loads. The lower section, with its more substantial design, is engineered to anchor into deep foundations capable of transferring loads to the bedrock, while the upper portion is more slender to enhance aerodynamic performance.<\/p>\n<p class=\"ds-markdown-paragraph\">The foundations will be constructed using exceptionally large reinforced concrete footings, supported by drilled piles and base slabs designed to distribute forces over a wide area. This solution addresses the unique geotechnical conditions of the Strait, which are characterized by heterogeneous soils and high seismic accelerations.<\/p>\n<p>[\/vc_column_text][\/vc_column][vc_column width=&#8221;1\/5&#8243;][vc_single_image image=&#8221;9&#8243; img_size=&#8221;150&#215;150&#8243; style=&#8221;vc_box_shadow_border&#8221; css_animation=&#8221;bottom-to-top&#8221; css=&#8221;&#8221;][\/vc_column][\/vc_row][vc_row][vc_column][vc_separator css=&#8221;.vc_custom_1757584231087{margin-bottom: 0px !important;padding-top: 40px !important;padding-bottom: 40px !important;}&#8221;][\/vc_column][\/vc_row][vc_row][vc_column]<div class=\"mgt-header-block clearfix text-left text-black wpb_animate_when_almost_visible wpb_left-to-right wpb_content_element  mgt-header-block-style-1 mgt-header-texttransform-none  vc_custom_1759769908170\"><h2 class=\"mgt-header-block-title\">Function and Dynamic Behavior<\/h2><p class=\"mgt-header-block-subtitle\">Bridge of Messina<\/p><div class=\"mgt-header-line\"><\/div><\/div>[\/vc_column][\/vc_row][vc_row][vc_column width=&#8221;4\/5&#8243;][vc_column_text css_animation=&#8221;bottom-to-top&#8221; css=&#8221;&#8221;]<\/p>\n<p class=\"ds-markdown-paragraph\">The supporting towers are responsible for bearing the giant main cables that hold up the bridge deck. Each tower is equipped with saddles and anchorages made of ultra-high-strength steel, designed to minimize friction and allow for controlled movements caused by thermal variations, variable loads, and dynamic stresses.<\/p>\n<p class=\"ds-markdown-paragraph\">The behavior of the towers has been studied <strong>using sophisticated three-dimensional models<\/strong> and wind tunnel tests to ensure stability even in <strong>wind gusts exceeding 300 km\/h<\/strong>. Similarly, seismic analyses have considered scenarios up to a <strong>magnitude of 7.5<\/strong> (Moment Magnitude scale, Mw), allowing for the incorporation of energy dissipation devices and expansion joints capable of absorbing a portion of the stresses without compromising the structure&#8217;s safety.<\/p>\n<p>[\/vc_column_text][\/vc_column][vc_column width=&#8221;1\/5&#8243;][vc_single_image image=&#8221;9&#8243; img_size=&#8221;150&#215;150&#8243; style=&#8221;vc_box_shadow_border&#8221; css_animation=&#8221;bottom-to-top&#8221; css=&#8221;&#8221;][\/vc_column][\/vc_row][vc_row][vc_column][vc_separator css=&#8221;.vc_custom_1757581466749{margin-bottom: 0px !important;padding-top: 10px !important;padding-bottom: 40px !important;}&#8221;][\/vc_column][\/vc_row][vc_row][vc_column]<div class=\"mgt-header-block clearfix text-left text-black wpb_animate_when_almost_visible wpb_left-to-right wpb_content_element  mgt-header-block-style-1 mgt-header-texttransform-none  vc_custom_1759770140029\"><h2 class=\"mgt-header-block-title\">Materials<\/h2><p class=\"mgt-header-block-subtitle\">Bridge of Messina<\/p><div class=\"mgt-header-line\"><\/div><\/div>[\/vc_column][\/vc_row][vc_row][vc_column width=&#8221;4\/5&#8243;][vc_column_text css=&#8221;.vc_custom_1759770185833{margin-bottom: 0px !important;}&#8221;]The selection of materials is strategic: ultra-high-strength steels are employed, capable of withstanding significant stresses without losing ductility, along with special concretes containing additives that <strong>enhance durability<\/strong> in the presence of <strong>salt spray and humidity<\/strong>. Every joint is designed to resist fatigue and the effects of marine corrosion. The main cable anchorages are constructed with particularly tough alloys, engineered to transfer loads with maximum precision and to accommodate micro-movements caused by thermal variations or oscillations induced by traffic and wind.[\/vc_column_text][\/vc_column][vc_column width=&#8221;1\/5&#8243;][vc_single_image image=&#8221;9&#8243; img_size=&#8221;150&#215;150&#8243; style=&#8221;vc_box_shadow_border&#8221; css_animation=&#8221;bottom-to-top&#8221; css=&#8221;&#8221;][\/vc_column][\/vc_row][vc_row][vc_column][vc_separator css=&#8221;.vc_custom_1757584288393{margin-bottom: 0px !important;padding-top: 20px !important;padding-bottom: 40px !important;}&#8221;][\/vc_column][\/vc_row][vc_row][vc_column]<div class=\"mgt-header-block clearfix text-left text-black wpb_animate_when_almost_visible wpb_left-to-right wpb_content_element  mgt-header-block-style-1 mgt-header-texttransform-none  vc_custom_1759770215968\"><h2 class=\"mgt-header-block-title\">Construction technologies<\/h2><p class=\"mgt-header-block-subtitle\">Bridge of Messina<\/p><div class=\"mgt-header-line\"><\/div><\/div>[\/vc_column][\/vc_row][vc_row][vc_column width=&#8221;4\/5&#8243;][vc_column_text css_animation=&#8221;bottom-to-top&#8221; css=&#8221;.vc_custom_1759770295151{margin-bottom: 0px !important;}&#8221;]The construction of the towers will require the use of <strong>special high-strength steels and high-performance concretes<\/strong>, capable of combining robustness, durability, and resistance to marine corrosion. The assembly will be organized in progressive phases: first, the construction of the foundations, followed by the erection of the shafts <strong>using prefabricated segments<\/strong> or cast-in-place concrete, and finally, the installation of the cross-beams and accessory elements.<\/p>\n<p>Each phase will be accompanied by topographic surveys and <strong>real-time structural monitoring<\/strong> to verify the correct geometry and the absence of abnormal deformations. The towers will also be equipped with <strong>permanent inspection and maintenance systems<\/strong>, including internal elevators and access platforms, which will allow personnel to safely access all the way to the top.[\/vc_column_text][\/vc_column][vc_column width=&#8221;1\/5&#8243;][vc_single_image image=&#8221;9&#8243; img_size=&#8221;150&#215;150&#8243; style=&#8221;vc_box_shadow_border&#8221; css_animation=&#8221;bottom-to-top&#8221; css=&#8221;&#8221;][\/vc_column][\/vc_row][vc_row][vc_column][vc_separator css=&#8221;.vc_custom_1757581527014{margin-bottom: 0px !important;padding-top: 40px !important;padding-bottom: 40px !important;}&#8221;][\/vc_column][\/vc_row][vc_row][vc_column]<div class=\"mgt-header-block clearfix text-left text-black wpb_animate_when_almost_visible wpb_left-to-right wpb_content_element  mgt-header-block-style-1 mgt-header-texttransform-none  vc_custom_1759770327899\"><h2 class=\"mgt-header-block-title\">Symbolic and landscape meaning<\/h2><p class=\"mgt-header-block-subtitle\">Bridge of Messina<\/p><div class=\"mgt-header-line\"><\/div><\/div>[\/vc_column][\/vc_row][vc_row][vc_column width=&#8221;4\/5&#8243;][vc_column_text css_animation=&#8221;bottom-to-top&#8221; css=&#8221;.vc_custom_1759770378521{margin-bottom: 0px !important;}&#8221;]Beyond their load-bearing function, the pylons of the Messina Bridge will hold significant symbolic and landscape value. Slender and visible from a great distance, they will become a new visual landmark for those crossing the Strait or observing it from the <strong>coasts of Calabria and Sicily<\/strong>. Their profile, elegant and harmonized with the suspended span, is destined to become an icon of Italian engineering and Mediterranean identity\u2014a tangible sign of the nation&#8217;s ability to deliver cutting-edge works while respecting a natural and historical context unique in the world.[\/vc_column_text][\/vc_column][vc_column width=&#8221;1\/5&#8243;][vc_single_image image=&#8221;9&#8243; img_size=&#8221;150&#215;150&#8243; style=&#8221;vc_box_shadow_border&#8221; css_animation=&#8221;bottom-to-top&#8221; css=&#8221;&#8221;][\/vc_column][\/vc_row][vc_row][vc_column][vc_separator css=&#8221;.vc_custom_1757581527014{margin-bottom: 0px !important;padding-top: 40px !important;padding-bottom: 40px !important;}&#8221;][\/vc_column][\/vc_row][vc_row css=&#8221;.vc_custom_1757585954887{padding-top: 20px !important;}&#8221;][vc_column]<div class=\"mgt-header-block clearfix text-left text-black wpb_animate_when_almost_visible wpb_left-to-right wpb_content_element  mgt-header-block-style-1 mgt-header-texttransform-none  vc_custom_1759770411208\"><h2 class=\"mgt-header-block-title\">Data relating to the load-bearing towers of the Messina Bridge<\/h2><p class=\"mgt-header-block-subtitle\">Bridge of Messina<\/p><div class=\"mgt-header-line\"><\/div><\/div>[\/vc_column][\/vc_row][vc_row][vc_column][vc_column_text css_animation=&#8221;bottom-to-top&#8221; css=&#8221;.vc_custom_1759770489742{margin-bottom: 0px !important;padding-top: 10px !important;padding-right: 10px !important;padding-bottom: 10px !important;padding-left: 10px !important;background-color: #EEEEEE !important;}&#8221;]<\/p>\n<div class=\"table-wrap\">\n<table class=\"pylons-table\" aria-label=\"Pylon Technical Specifications\">\n<colgroup>\n<col style=\"width: 35%;\" \/>\n<col style=\"width: 65%;\" \/> <\/colgroup>\n<thead>\n<tr>\n<th>Parameter<\/th>\n<th>Value \/ Description<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Overall Height<\/td>\n<td><strong>\u2248 399 m<\/strong> (among the tallest suspension bridge towers worldwide)<\/td>\n<\/tr>\n<tr>\n<td>Configuration<\/td>\n<td>Two parallel shafts connected by horizontal and diagonal cross-beams for torsional stiffness<\/td>\n<\/tr>\n<tr>\n<td>Foundations<\/td>\n<td>Reinforced concrete footings on drilled piles and base slabs anchored to bedrock<\/td>\n<\/tr>\n<tr>\n<td>Materials<\/td>\n<td>High-strength steels, high-performance concretes, marine corrosion protection treatments<\/td>\n<\/tr>\n<tr>\n<td>Design Loads<\/td>\n<td>Static and dynamic actions from traffic, wind (&gt;300 km\/h) and seismic events (up to Mw 7.5)<\/td>\n<\/tr>\n<tr>\n<td>Safety Systems<\/td>\n<td>Seismic energy dissipation devices, joints for thermal and dynamic movements, continuous structural monitoring<\/td>\n<\/tr>\n<tr>\n<td>Maintenance<\/td>\n<td>Internal elevators and access platforms for inspections, predictive maintenance with SHM sensors<\/td>\n<\/tr>\n<tr>\n<td>Symbolic Role<\/td>\n<td>New landmark of the Strait, representing innovation and connection between Sicily and Calabria<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<style>\n  .table-wrap { overflow-x: auto; 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