<p>This Architectural Drawing is AutoCAD 2d drawing of Section of the steel bars of metallic structure. Steel frame is a building technique with a "<a title="Skeleton" href="https://en.wikipedia.org/wiki/Skeleton">skeleton</a> frame" of vertical <a title="Steel" href="https://en.wikipedia.org/wiki/Steel">steel</a> <a class="mw-redirect" title="Columns" href="https://en.wikipedia.org/wiki/Columns">columns</a> and horizontal <a title="I-beam" href="https://en.wikipedia.org/wiki/I-beam">I-beams</a>, constructed in a rectangular grid to support the floors, roof and walls of a building which are all attached to the frame. The development of this technique made the construction of the <a title="Skyscraper" href="https://en.wikipedia.org/wiki/Skyscraper">skyscraper</a> possible. For more details and information download the drawing file.</p>