1.0MC2https://www.mc2.es/en/ensalzahttps://www.mc2.es/en/author/ensalza/rich600338<blockquote class="wp-embedded-content" data-secret="x19v3uPEX5"><a href="https://www.mc2.es/en/proyect/arenal-bridge/">Arenal Bridge</a></blockquote><iframe sandbox="allow-scripts" security="restricted" src="https://www.mc2.es/en/proyect/arenal-bridge/embed/#?secret=x19v3uPEX5" width="600" height="338" title="“Arenal Bridge” — MC2" data-secret="x19v3uPEX5" frameborder="0" marginwidth="0" marginheight="0" scrolling="no" class="wp-embedded-content"></iframe><script> /*! This file is auto-generated */ !function(d,l){"use strict";l.querySelector&&d.addEventListener&&"undefined"!=typeof URL&&(d.wp=d.wp||{},d.wp.receiveEmbedMessage||(d.wp.receiveEmbedMessage=function(e){var t=e.data;if((t||t.secret||t.message||t.value)&&!/[^a-zA-Z0-9]/.test(t.secret)){for(var s,r,n,a=l.querySelectorAll('iframe[data-secret="'+t.secret+'"]'),o=l.querySelectorAll('blockquote[data-secret="'+t.secret+'"]'),c=new RegExp("^https?:$","i"),i=0;i<o.length;i++)o[i].style.display="none";for(i=0;i<a.length;i++)s=a[i],e.source===s.contentWindow&&(s.removeAttribute("style"),"height"===t.message?(1e3<(r=parseInt(t.value,10))?r=1e3:~~r<200&&(r=200),s.height=r):"link"===t.message&&(r=new URL(s.getAttribute("src")),n=new URL(t.value),c.test(n.protocol))&&n.host===r.host&&l.activeElement===s&&(d.top.location.href=t.value))}},d.addEventListener("message",d.wp.receiveEmbedMessage,!1),l.addEventListener("DOMContentLoaded",function(){for(var e,t,s=l.querySelectorAll("iframe.wp-embedded-content"),r=0;r<s.length;r++)(t=(e=s[r]).getAttribute("data-secret"))||(t=Math.random().toString(36).substring(2,12),e.src+="#?secret="+t,e.setAttribute("data-secret",t)),e.contentWindow.postMessage({message:"ready",secret:t},"*")},!1)))}(window,document); </script> https://www.mc2.es/wp-content/uploads/00-2006-02-20-JMC-JAFO-116-Libro-JMC-013-c-MC2-1024x733.jpg1024733The innovative structural type of this bridge is based on its variable depth prestressed composite girder. This depth variation is more pronounced at the piers where the steel bottom sheet of the box-girder disappears and the concrete bottom slab tears down into the chalice shaped pieces which transfer the loads to the piers. Another worth-mentioning ... Read more