Shapes of minimum compliance for cable-network in tensile structures are determined by drawing inspiration from the equilibrium configurations of highly-stretched initially-flat elastic membranes. The fundamentals of this optimality criterion lies on a natural property of membranes, which organize their structural resources to maximize the stiffness against the applied loads. Referring to recently-proposed bridge layouts, an ideal structure is studied where the deck is suspended to lateral pylons or to an upper arch by an elastic membrane. From the location of taut and inactive regions and from the orientation of the wrinkles in the corrugated zones, deduced numerically and confirmed experimentally, optimal shapes for suspension cable network, reproducing the membrane response, are obtained.
Membrane wrinkling and smart cable nets
BARSOTTI, RICCARDO;LIGARO', SALVATORE SERGIO;
2003-01-01
Abstract
Shapes of minimum compliance for cable-network in tensile structures are determined by drawing inspiration from the equilibrium configurations of highly-stretched initially-flat elastic membranes. The fundamentals of this optimality criterion lies on a natural property of membranes, which organize their structural resources to maximize the stiffness against the applied loads. Referring to recently-proposed bridge layouts, an ideal structure is studied where the deck is suspended to lateral pylons or to an upper arch by an elastic membrane. From the location of taut and inactive regions and from the orientation of the wrinkles in the corrugated zones, deduced numerically and confirmed experimentally, optimal shapes for suspension cable network, reproducing the membrane response, are obtained.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
