{"id":14866,"date":"2023-12-20T16:35:06","date_gmt":"2023-12-20T14:35:06","guid":{"rendered":"https:\/\/www.servosis.com\/?p=14866"},"modified":"2025-01-09T13:01:54","modified_gmt":"2025-01-09T11:01:54","slug":"the-importance-of-elastomeric-bearings-in-structures","status":"publish","type":"post","link":"https:\/\/www.servosis.com\/en\/la-importancia-de-apoyos-elastomericos-en-estructuras\/","title":{"rendered":"The Importance of Elastomeric Bearings in Structures: Compliance with Standard UNE-EN 1337-3:2005"},"content":{"rendered":"<div data-elementor-type=\"wp-post\" data-elementor-id=\"14866\" class=\"elementor elementor-14866\" data-elementor-post-type=\"post\">\n\t\t\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-2a60d52 elementor-section-boxed elementor-section-height-default elementor-section-height-default rt-parallax-bg-no\" data-id=\"2a60d52\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-b1462d6\" data-id=\"b1462d6\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-3b87abd elementor-widget elementor-widget-text-editor\" data-id=\"3b87abd\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>In the field of structural engineering, elastomeric bearings play a crucial role in the stability and durability of constructions.<\/p><p>In this article, we will delve into what these bearings are and their role in civil engineering projects. We will also explore the UNE-EN 1337-3:2005 standard, highlighting why at SERVOSIS we ensure strict compliance with the necessary standards.<\/p><h2>What is an Elastomeric Bearing?<\/h2><p>Elastomeric bearings are ingeniously designed devices used to absorb and distribute loads in a structure. To be more precise, when a structure begins to function, it experiences various movements and deformations caused by temperature changes, its own weight, and the overloads it is exposed to. To cope with and withstand these changes, it is necessary to have support elements that allow for these movements without causing damage.\u00a0<\/p><p>These devices, made from high-quality elastomers, have unique properties that allow them to perform crucial functions in civil engineering.\u00a0<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-72a7d37 elementor-widget elementor-widget-image\" data-id=\"72a7d37\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img fetchpriority=\"high\" decoding=\"async\" width=\"669\" height=\"375\" src=\"https:\/\/www.servosis.com\/wp-content\/uploads\/2023\/12\/apoyo-elastomerico3.png\" class=\"attachment-large size-large wp-image-14871\" alt=\"Elastomeric bearings\" srcset=\"https:\/\/www.servosis.com\/wp-content\/uploads\/2023\/12\/apoyo-elastomerico3.png 669w, https:\/\/www.servosis.com\/wp-content\/uploads\/2023\/12\/apoyo-elastomerico3-300x168.png 300w, https:\/\/www.servosis.com\/wp-content\/uploads\/2023\/12\/apoyo-elastomerico3-600x336.png 600w, https:\/\/www.servosis.com\/wp-content\/uploads\/2023\/12\/apoyo-elastomerico3-155x87.png 155w\" sizes=\"(max-width: 669px) 100vw, 669px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-98490ad elementor-widget elementor-widget-text-editor\" data-id=\"98490ad\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><span style=\"text-align: var(--bs-body-text-align);\">Below, we detail what they are:\u00a0<\/span><\/p><h2>Unique Properties of Elastomeric Bearings<\/h2><ul><li aria-level=\"1\"><h3><span style=\"font-weight: 400;\">Capacity to Absorb Seismic Movements<\/span><\/h3><\/li><\/ul><p>Elastomeric bearings are distinguished by their intrinsic ability to dissipate the energy generated during seismic events. This is achieved through the controlled deformation of highly resilient elastomers, which absorb the kinetic energy associated with seismic forces.\u00a0<\/p><p>The implementation of these bearings minimizes the transmission of such forces to the main structure, thereby mitigating the destructive effects of earthquakes. The dynamic response of the elastomers contributes to the effectiveness of this system by damping oscillations, preserving structural integrity, and reducing risks associated with seismic events.<\/p><ul><li aria-level=\"1\"><h3><span style=\"font-weight: 400;\">Flexibility and Deformability<\/span><\/h3><\/li><\/ul><p>The intrinsic ability to deform significantly without compromising its structural characteristics allows elastomeric bearings to accommodate structural movements, such as thermal expansion or contraction, without imposing excessive loads on the main structure.\u00a0<\/p><p>The controlled deformability of these materials ensures essential adaptability, preserving the integrity of the structure and reducing the likelihood of damage or structural failures due to unforeseen movements.<\/p><ul><li aria-level=\"1\"><h3><span style=\"font-weight: 400;\">Vibration and Noise Isolation:<\/span><\/h3><\/li><\/ul><p>In urban environments and vibration-sensitive structures, elastomeric bearings play a crucial role by providing effective isolation against vibrations and noise. The ability of elastomers to absorb and dissipate vibrational energy minimizes the transmission of these unwanted disturbances to surrounding buildings.\u00a0<\/p><p>This is achieved through the elastomeric material's ability to convert vibrational energy into controlled deformation, thereby preventing the propagation of annoying vibrations and preserving the quality of the living environment.<\/p><ul><li aria-level=\"1\"><h3><span style=\"font-weight: 400;\">Low Transmission of Horizontal Loads:<\/span><\/h3><\/li><\/ul><p>Strategically designed, elastomeric bearings provide selective resistance to horizontal loads, allowing the structure to expand and contract in response to lateral forces without inducing damage.\u00a0<\/p><p>The inherent low lateral stiffness of these bearings facilitates the adaptation of the structure to horizontal movements, such as those caused by strong winds or seismic events.\u00a0<\/p><p>By minimizing the transmission of horizontal forces to the main structure, stability is preserved and efforts that could lead to structural damage or the activation of safety systems are reduced, thereby contributing to the long-term durability and efficiency of the infrastructure.<\/p><div>\u00a0<\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-ab9b41d elementor-widget elementor-widget-image\" data-id=\"ab9b41d\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" width=\"673\" height=\"362\" src=\"https:\/\/www.servosis.com\/wp-content\/uploads\/2023\/12\/apoyo-elastomerico.png\" class=\"attachment-large size-large wp-image-14874\" alt=\"Elastomeric bearings\" srcset=\"https:\/\/www.servosis.com\/wp-content\/uploads\/2023\/12\/apoyo-elastomerico.png 673w, https:\/\/www.servosis.com\/wp-content\/uploads\/2023\/12\/apoyo-elastomerico-300x161.png 300w, https:\/\/www.servosis.com\/wp-content\/uploads\/2023\/12\/apoyo-elastomerico-600x323.png 600w, https:\/\/www.servosis.com\/wp-content\/uploads\/2023\/12\/apoyo-elastomerico-155x83.png 155w\" sizes=\"(max-width: 673px) 100vw, 673px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-3252f1f elementor-widget__width-initial elementor-widget elementor-widget-text-editor\" data-id=\"3252f1f\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><b style=\"color: #000000; font-family: 'Source Sans Pro', sans-serif; font-size: 36px; text-align: var(--bs-body-text-align);\"><br><\/b><\/p><p><b style=\"color: #000000; font-family: 'Source Sans Pro', sans-serif; font-size: 36px; text-align: var(--bs-body-text-align);\">SERVOSIS and the <\/b><b style=\"color: #000000; font-family: 'Source Sans Pro', sans-serif; font-size: 36px; text-align: var(--bs-body-text-align);\">ME 408 Machine for Testing Elastomeric Bearings&nbsp;<\/b><\/p>\n<p><span style=\"font-weight: 400;\">The ME 408 elastomeric bearing testing machine from SERVOSIS is a monoblock servo-hydraulic drive system specifically designed to conduct tests according to the UNE-EN 1337-3 standard. It performs shear modulus, shear bond, and compression tests, respectively.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">The system includes:&nbsp;<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Two high-capacity double-acting linear hydraulic actuators (6 MN) for applying axial load.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">One double-acting linear hydraulic actuator (1.5 MN) for applying lateral displacement to the specimen.&nbsp;<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Equipped with Moog servo valves for control and integrated linear displacement sensors.&nbsp;<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">The force is measured using a load cell in the lateral actuator and pressure sensors in the high-capacity actuators.<\/span><\/li>\n<\/ul>\n<p><span style=\"font-weight: 400;\">This set of features makes the SERVOSIS machine a high-precision and innovative tool in the market, capable of meeting the most demanding standards and ensuring maximum accuracy in the execution of tests.<\/span><\/p>\n<p><\/p>\n<p><b>We share a&nbsp;<\/b><a href=\"https:\/\/www.youtube.com\/watch?v=OEirTubuX5o\" target=\"_blank\" rel=\"noopener\">video<\/a><b>&nbsp;with our machine<\/b><\/p>\n<p><b><br><\/b><\/p>\n<p><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-afecddd elementor-widget elementor-widget-image\" data-id=\"afecddd\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" width=\"614\" height=\"1024\" src=\"https:\/\/www.servosis.com\/wp-content\/uploads\/2023\/12\/20151028_115441-1-e1703082864956-614x1024.jpg\" class=\"attachment-large size-large wp-image-14877\" alt=\"\" srcset=\"https:\/\/www.servosis.com\/wp-content\/uploads\/2023\/12\/20151028_115441-1-e1703082864956-614x1024.jpg 614w, https:\/\/www.servosis.com\/wp-content\/uploads\/2023\/12\/20151028_115441-1-e1703082864956-180x300.jpg 180w, https:\/\/www.servosis.com\/wp-content\/uploads\/2023\/12\/20151028_115441-1-e1703082864956-768x1280.jpg 768w, https:\/\/www.servosis.com\/wp-content\/uploads\/2023\/12\/20151028_115441-1-e1703082864956-922x1536.jpg 922w, https:\/\/www.servosis.com\/wp-content\/uploads\/2023\/12\/20151028_115441-1-e1703082864956-1229x2048.jpg 1229w, https:\/\/www.servosis.com\/wp-content\/uploads\/2023\/12\/20151028_115441-1-e1703082864956-600x1000.jpg 600w, https:\/\/www.servosis.com\/wp-content\/uploads\/2023\/12\/20151028_115441-1-e1703082864956-94x157.jpg 94w, https:\/\/www.servosis.com\/wp-content\/uploads\/2023\/12\/20151028_115441-1-e1703082864956.jpg 1536w\" sizes=\"(max-width: 614px) 100vw, 614px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-645c541 elementor-widget elementor-widget-text-editor\" data-id=\"645c541\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<h2><span style=\"text-align: var(--bs-body-text-align);\">UNE-EN 1337-3:2005 standard:<\/span><\/h2><p>The UNE-EN 1337-3:2005 standard specifies the requirements and test methods for elastomeric bearings in bridges and other structures.\u00a0<\/p><p>When reviewing the UNE-EN 1337-3:2005 standard, we observe a variety of tests classified into two categories: \"initial\" and \"routine.\"\u00a0<\/p><p>The \"initial\" tests are essential for obtaining the\u00a0<span style=\"font-weight: bold;\">CE certification<\/span>\u00a0initial product certification and must be carried out in a laboratory accredited by\u00a0<span style=\"font-weight: bold;\">ENAC<\/span>\u00a0or an equivalent European accreditation within\u00a0<span style=\"font-weight: bold;\">la red de entidades ILAC<\/span>.\u00a0<\/p><p>As for the \"routine\" or follow-up tests, they are essential for maintaining certification as they are considered necessary for product quality control. These tests can be performed internally, provided that the testing equipment is calibrated and technical competence is demonstrated.\u00a0<\/p><h2>SERVOSIS and the importance of complying with the UNE-EN 1337-3:2005 standard:<\/h2><p>At SERVOSIS, we know that complying with the UNE-EN 1337-3:2005 standard is essential for elastomeric bearings due to its rigorous technical specifications.<\/p><p>This standard sets criteria for evaluating mechanical properties, fatigue resistance, dimensional stability, sliding capacity, and compatibility with materials and structural systems.\u00a0<\/p><p>All of this ensures that elastomeric bearings meet the necessary performance, strength, and durability standards for their function in structures.<\/p><p>Therefore, the ME 408 control system, developed exclusively by SERVOSIS, ensures compliance with the regulations. Distinguished by its high range, it competes on equal terms with the most prestigious international manufacturers in terms of precision, resolution, and response speed, thanks to over 35 years of experience in the mechanical testing sector.<\/p><h3>\u00a0<\/h3>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-1d1c398 elementor-section-boxed elementor-section-height-default elementor-section-height-default rt-parallax-bg-no\" data-id=\"1d1c398\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-750cffd\" data-id=\"750cffd\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-c40ae77 elementor-button-info elementor-align-center elementor-widget elementor-widget-button\" data-id=\"c40ae77\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"button.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div class=\"elementor-button-wrapper\">\n\t\t\t\t\t<a class=\"elementor-button elementor-button-link elementor-size-lg\" href=\"https:\/\/www.servosis.com\/en\/contacto\/\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t\t\t\t<span class=\"elementor-button-text\">Contact<\/span>\n\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<\/div>","protected":false},"excerpt":{"rendered":"<p>En el \u00e1mbito de la ingenier\u00eda estructural, los apoyos elastom\u00e9ricos juegan un papel crucial en la estabilidad y durabilidad de las construcciones. En este art\u00edculo, exploraremos a fondo qu\u00e9 son estos apoyos y cu\u00e1l es la funci\u00f3n en proyectos de ingenier\u00eda civil. Asimismo, nos sumergiremos en la normativa UNE-EN 1337-3:2005, destacando por qu\u00e9 en SERVOSIS [&hellip;]<\/p>\n","protected":false},"author":8,"featured_media":14868,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"om_disable_all_campaigns":false,"inline_featured_image":false,"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"footnotes":""},"categories":[18],"tags":[],"class_list":["post-14866","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-noticias"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.servosis.com\/en\/wp-json\/wp\/v2\/posts\/14866","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.servosis.com\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.servosis.com\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.servosis.com\/en\/wp-json\/wp\/v2\/users\/8"}],"replies":[{"embeddable":true,"href":"https:\/\/www.servosis.com\/en\/wp-json\/wp\/v2\/comments?post=14866"}],"version-history":[{"count":0,"href":"https:\/\/www.servosis.com\/en\/wp-json\/wp\/v2\/posts\/14866\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.servosis.com\/en\/wp-json\/wp\/v2\/media\/14868"}],"wp:attachment":[{"href":"https:\/\/www.servosis.com\/en\/wp-json\/wp\/v2\/media?parent=14866"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.servosis.com\/en\/wp-json\/wp\/v2\/categories?post=14866"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.servosis.com\/en\/wp-json\/wp\/v2\/tags?post=14866"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}