There are no blog posts or forum threads. Look properly:
http://www.lehigh.edu/~infrk/2011.08.article.html - this is one is Lehigh University website
http://www4.lehigh.edu/news/newsarticle.aspx?Channel=%2FChannels%2FNews%3A+2007&WorkflowItemID;=0bed2560-462b-4bd9-b834-4b5a1e91cc54 - this is one too is Lehigh University website
http://www.structuremag.org/article.aspx?articleID=1211 - this one is structural magazine website
https://ialcce2012.boku.ac.at/keynote_details.php?profile=5 - this is also another univeristy website.
http://www.constructionweekonline.com/article-9180-top-10-worlds-tallest-steel-buildings/#.UwHewZgRTCM
These are not questionable sources. These are proper websites written by professionals. So please see them properly 58.97.168.109  13:45, 20 February 2014