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Building Construction 1

           8- Arch
An arch is a vertical curved structure that spans an elevated space and may or
may not support the weight above it, or in case of a horizontal arch like an arch
dam, the hydrostatic pressure against it. Arches may be synonymous with
vaults, but a vault may be distinguished as a continuous arch forming a roof.
Arches appeared as early as the 2nd millennium BC in Mesopotamian brick
architecture, and their systematic use started with the ancient Romans, who
were the first to apply the technique to a wide range of structures.

           9- Wall and Plate

           10- Cylindrical Shell and Vault

           11- Spherical Shell and Vault

           12- Cable and Rod

           13- Membrane Tent and Net

                       5

Dr. Sherein El-Shahat
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