SHELL STRUCTURES Shell structure, In building construction, a slight, bended plate structure molded to transmit applied forces by compressive, tensile and shear focuses on that demonstration in the plane of the surface. They are normally developed of concrete reinforced with steel work. Shell construction began in the 1920s, the shell emerged as a significant long-range solid structure after World War II. More complex forms of concrete shells have been made, including: ▪ Hyperbolic paraboloids ▪ Seat shapes ▪ Converging explanatory vaults TYPES OFSHELL STRUCTURES • Concrete shell structures, often cast as a monolithic dome or stressed ribbon bridge or saddle roof • Lattice shell structures, also called grid shell structures, often in the form of a geodesic dome or a hyperboloid structure • Membrane structures, which include fabric structures and other tensile structures, cable domes, and pneumatic structures.
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