I have had a similar experience myself, but it is really not as complicated as the questioner said. Perhaps the customs of every place are different, and so are all parts of Zhejiang. It is the custom in my hometown that after the planning department has finished the pile positioning, someone will ask the Feng Shui master to determine the location of the house and burn incense and pray around the homestead in the morning when it breaks ground. After that, it will enter normal excavation, foundation, structure, wall building, concrete pouring and other related links.
However, when pouring or caving the top girder, we should not only choose a good day, but also choose a good time. The beam is wrapped in red paper, pine and cypress, and the words "good luck on the beam" are written. We also set off firecrackers, beat gongs and drums, throw cigarettes, sugar, fruits, peanuts, eggs and other gifts, and of course give red envelopes to every worker. There is even a banquet for neighbors and workers to celebrate together.
This may be a relatively common custom, just to confirm a sentence: "Building a house with beams is prosperous, and building a house without beams is not prosperous." There is also the so-called "fish begins to stink at the head". It reflects the importance of building beams in rural areas. As for the rest, there are really few ceremonies on every floor, which is also a laborious thing. Many of them are entrusted with the overall construction of Baotou, and it is really tiring to run back and forth on each floor. However, many places will also have Liang etiquette, which is similar. I believe it will continue in the future!