Structural designers have imagined, designed and constructed urban forms that are large-scale and of single use, such as bridges and large-span roofs.  The main performance criteria of such structures are to resist the forces of nature, and to be economical.  In contrast to bridges, buildings are of relatively small scale, and have a complex human use; their form reflects the spaces people use. Their design … Continue reading Design Philosophy: Without Firmitas, no venustas or utilitas