Arch

=**The arch is a crucial structure in architecture.**= An **arch** is a structure that spans a space and supports a load. Arches are designed to resist heavy loads of weight, because of their form the forces are divided and redirected, transforming all tension in to compression. The first arch appearance is natural arches loke the one of the picture.

An clear examples is the use of arches in the buttress or doorways in Gothic Architecture. In modern times the arch had pass from old materials.

Arches during their building procces a extremely fragile, if it is not built in a correctly the arch will collapse after his frame is removed. The arch is a long-lived structure with proper maintenance. Is cheap and easy in contrast to the time it takes to be made.