A gridshell is a structure which derives its strength from its double curvature, but is constructed of a grid or lattice.
The steel gridshell by Vladimir Shukhov (during construction), Vyksa near Nizhny Novgorod, 1897
Multihalle in Mannheim, a wooden gridshell structure designed by Frei Otto
Interior of the gridshell Savill Building
Solidays Forum: a 350 m2 glassfibre composite material elastic gridshell, Paris, France, 2011
In structural engineering, a tensile structure is a construction of elements carrying only tension and no compression or bending. The term tensile should not be confused with tensegrity, which is a structural form with both tension and compression elements. Tensile structures are the most common type of thin-shell structures.
The world's first tensile steel shell by Vladimir Shukhov (during construction), Nizhny Novgorod, 1895
The Sidney Myer Music Bowl in Kings Domain, Melbourne
The Olympiastadion in Munich makes extensive use of tensile roofing structures.
Frei Otto tensile structures for the Munich 72 Olympic Games, Germany.