How were the tall buildings built in the Han Dynasty? What are the "hard core technologies"?

The first step in building a tall building is to lay a good foundation, no matter thousands of years ago or now. If you want to build a house high, you must first lay a good foundation. In the Han Dynasty, the first step of architecture was to get a very high platform, so in the Han Dynasty, we can see how high the building would be through the establishment of the pedestal below it, so the architects at that time were also very powerful and spent a lot of thoughts in all aspects. For example, if you want to build a two-story house, you must match it with a foundation, so you usually dig a 2-meter pit underground and fill it with thick soil to tamp it.

Besides its height, it is more important that it is practical. Such a solid foundation is not useless. In addition to stabilizing the house, some drainage facilities are needed, so that life at that time will be more convenient and the foundation will be more beautiful after renovation.

After laying the foundation, all you have to do is the wall, and this wall can't be added as before, but subtracted, so that he can stand in mid-air, which involves particularly powerful technology at that time. Because the wall of the room is not made of wood, digging out the foundation as the wall of the room will relieve his pressure and turn the whole foundation into the skeleton of the house, so that wooden buildings can be better built on it.

In addition to the wood structure, metal fittings were used at that time. Finished, the foundation and skeleton are followed by the decoration of the house. Such as doors, windows and roofs. We all think that some ancient wood splicing techniques were used to make various objects fit together perfectly, but nails were already used at that time.

In fact, things like nails were used in the Han Dynasty, because the skeleton was made of wood at that time, but at that time, beams, doors and windows had to be stabilized, and besides wood, they had to be reinforced with metal, which was also the reason why there were buildings tens of meters high at that time.