The origin of the word parenthesis

The bracket is a hanging structure. For example, when building a house at home, the short cantilever beam added under the balcony to support the cantilever balcony is the bracket. In the factory building, the legs on the column where the crane beam is placed are the supports.

Usually the independent corbel belongs to the beam (build your own house). If it is cast-in-place with the slab, it can be counted in the slab, and what is connected with the column can be counted in the column. The former is rarely used in large-scale buildings, and all of them are used for integral casting of cast-in-place structures, while the latter is widely used in factories.

In ancient buildings, the bracket and sparrow are similar components, but they are not exactly the same. Queti refers to the supporting wood between the column and the beam, which can not only play the role of inheritance, but also play the role of decoration. It is equivalent to the axiling part of concrete axiling beam in modern architecture.

Cattle legs are also called "horse legs" in some places.

Also refers to the short wooden block protruding from the pillar, which generally only plays a decorative role and cannot be passed on. However, in some places and some data, brackets and sparrow substitutes are mixed together.

The replacement of brackets and sparrows is the focus of carving and painting decoration of ancient buildings.