|As each rib is unique and custom-made, it can be
designed for the structural capacity that is locally needed, even if
varies along the rib. Deeper ribs lead to more stiffness in that
direction, wider ribs in the direction perpendicularly to it.
Spatially curving network structures - unlike frame structures -
lead as by default to its members acting in torque, and the
Deltaribs' closed cross section is particularly apt for that. In
addition, the ribs also resist bending in all directions.
Strength and stiffness of the ribs are dependent on the size
of the cross section and the plate thickness, and can be increased
by incorporating a steel plate or circular bar or tube is included
in the edge of a rib, where it is most effective.
On a more
global level, the structural capacity of the network is affected by
its density. For instance in heavily loaded zones nearby supports,
rib spacing could be reduced, whereas made more spacious elsewhere.
Increased capacity by making the
rib's cross section wider and/or
Increased structural capacity by a higher grid density,
by a greater beam size, and through thicker