1.0MC2https://www.mc2.es/en/ensalzahttps://www.mc2.es/en/author/ensalza/rich600338<blockquote class="wp-embedded-content" data-secret="0Irnr7mJRd"><a href="https://www.mc2.es/en/proyect/conoid-roof/">Conoid Roof</a></blockquote><iframe sandbox="allow-scripts" security="restricted" src="https://www.mc2.es/en/proyect/conoid-roof/embed/#?secret=0Irnr7mJRd" width="600" height="338" title="“Conoid Roof” — MC2" data-secret="0Irnr7mJRd" 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/MC-00206.3_02_2006-02-20_cLibro-JMC-998x1024.jpg9981024This roof covers the 12 m wide secondary avenues of the exhibition centre of Valencia (Spain). The modular roofs are arranged as hyperbolic paraboloid or conoid shells made out of corrugated steel sheets. These sheets are supported by bowstring trusses in such a manner as to create the conoid surfaces. The lower chord of the ... Read more