What Is a Beam Hanger?

The beams and beams in folk architecture not only have structural and functional significance, but also have rich structural and decorative beauty. The beam frame is mainly composed of columns, beams, and concrete members, and each of them has a specific decoration method to suit it. The beams in folk architecture often adopt the method of completely demon-making, exposing it to the outside, or winning by decoration, the main color is color painting, sculpting, etc., or the sky is full of materials and structure. The beauty of nature.

In the traditional wooden structure of a house, where the horizontal structure is arranged, the wooden structure of the bending member with a child column at the upper end is called a "beam frame". Under normal circumstances, both sides of the beam frame are combined with the pillars in the form of tenon and tenon, and the back is mainly subjected to concentrated loads. There are two basic types of beams: round wood is called "round work beam" and square wood is called "flat work beam". Less common is the "Gong-style beam." Its characteristic is to deliberately dig the bottom of the flat beam in the middle of the beam. After digging the bottom, the beam frame was elegant and zigzag. This kind of beam is stored in a unique "tribute hall". In addition, there is a rare "round and flat" beam, such as the beam frame in the Qianjiang Road.

Su Di called the beams in Mingjian the "frontal", and the ones in the next time were called "edge". The grass frame, the beam frame above the ceiling (ceiling) is called "grass frame". The Sudi Xiangshan Gang added a "grass" character to the names of the components above the ceiling (board). The trestle was hidden on the ceiling, and it was invisible when the house was completed. The moon beam, which looks like an arc-shaped beam, is slightly swollen on both sides of the moon, which is called "qin surface". Moon beam is also called "camel beam" and "pocket beam". The beams on the roof of the roll-shed structure in the Qing style and the Soviet Union are also called "moon beams".

Boundary, the horizontal distance between and on the beam. The beam, which is only one boundary deep in length, is the shortest beam in the beam frame. The second boundary beam, also known as a "two-step beam", spans the two-step beam (the beam spans two steps from the next to the previous). Three-boundary beam, a three-span beam. Because it is located in the ridge, it is also called "mountain boundary beam". Beams that span more than four steps are called "beams" and also called "beams." Its types are four-boundary beam, five-boundary beam, six-boundary beam, seven-boundary beam and eight-boundary beam. Corner beams, also known as "wiping corner beams", are often used at the corners of buildings. Upper beams form the roof of the Xieshan roof. The square pavilion also uses angle beams, the middle of which is rushwood, forming a cymbal spire. ^[1]

Most of the ancient Chinese architectures used wooden frames as the main structural form. The most common form of beam structure is the beam-lifting type.

One of the main characteristics of ancient Chinese architecture is the "big roof", and the other is the system of wooden frames. The fundamental guarantee that traditional buildings can stand on the ground for a long time is that because of the important building element of roof trusses, there is a proverb "no wall will fall down" on ancient Chinese architecture.

In "Book of Changes in the Book of Zhouyi", there was "Upward and Downward, Waiting for the Wind and Rain, Covering the Big and Strong", which shows the earliest basic theory of architecture in China. "Building" is the main wooden component of the roof part, "Yu" is the part under the roof, and "taken from the strong" means that the space is enlarged and the structure is solid. The combination of the two forms an ancient building that can shelter people from the wind and rain and provide people with daily life.

The large roof of Chinese classical architecture consists of beams, pillars,

Beam frame beam changing column

The building framework is basically complete, but individual beams and columns are rotten and lose bearing capacity. When new components need to be replaced, they can be repaired by pumping beams and columns. If the columns are replaced, the load on the beam frame is reduced first. Then use jacks and stern poles to support the beams, rafters, buckets, and other components on the column. Finally, the beam, cymbal, and bucket are slowly lifted at the same time, the bad pillars are removed, and the new pillars made in advance are replaced.

Beam frame hiccup

The main load-bearing members of the beam frame are basically intact, but the columns and beams are inclined, and can be repaired by snoring and straightening without major disassembly. Support the inclined components well before trimming to avoid danger during work. Then remove the tiles above the purlin, rafters, fascias, and doors, windows, and walls that hinder snoring, loosen the tenon and mortise between the components, and remove debris from the tenon and mortise gap. Use a spar to lift the beam and straighten the pillars; if the building is heavily inclined, repeat the straightening several times.

Beam frame landing gear repair

The building is severely damaged, and there are many beams, columns, buckets, and other components that need to be replaced. The method can be repaired by using a landing gear. ^[4]