Four beams and eight columns" is a traditional architectural structure derived from ancient China. The entire building is supported by four beams and eight columns. The four beams and eight columns represent the main structure of the building. In the Party Among the latest theoretical achievements, "four beams and eight pillars" are a vivid metaphor, emphasizing that our reform must have a basic main body framework.
In this way, there are eight pillars (representing eight directions). and eight pillars support the entire building. This means that the four beams and eight pillars represent the main structure.
In the old Beijing courtyard, Most buildings are built in the form of four beams and eight columns. To put it simply, four beams and eight columns are buildings with eight columns and four girders as the main structure.
Buildings in the past were generally made of wood. Mainly. Most buildings adopt a three-bay layout (representing the three talents of heaven, earth, and man). Because the bays are large, two beams are added in the middle. Adding the front beam and the back beam, the total is four beams (representing the four sides). Each beam has a pillar at each end to provide support.
Baidu Encyclopedia - Four Beams and Eight Pillars