21 March 2007

PORTAL FRAME DRAWING 2




















Portal Frame end wall section with lean to roof, manually drawn with tech pens.

Introduction

I passed this site just after Christmas on my push bike. At first glance it appeared to be an ubiquitous portal frame. However the shining relfections from the frame signalled that it was different. The portal frame was not your normal hot rolled steel UB section but cold rolled. The type you usually see in those kit garages and barns, but this spans 20m!