How did Chongqing Diaojiaolou come into being and what are its characteristics?

Express delivery. I took this photo myself. ? =? But it's not really a diaojiao building. Just changed the color of the picture. The original picture is not like this.

Diaojiaolou, built on the mountain, is divided into two floors with wooden pillars on the flat ground, which saves land and is cheap. The upper floor is ventilated, dry and moisture-proof, which is the living room; The lower floor is a pigsty or used for stacking sundries. The average house type is 4 rows of 3-room houses or 6 rows of 5-room houses. The average house is 5-column 2 riding, 5-column 4 riding, and the big house is 7-column 4 riding and 4 courtyard. There are 4 rows of fans with 3 rooms, with a hall in the middle and Rao rooms on the left and right sides for living and cooking. Rao's room is divided into two halves by the pillar, with the fire kang in front and the bedroom behind. There is an arc corridor around the building on the diaojiao building, and the arc corridor is also equipped with railings.

Some diaojiao buildings are three stories, except for the tiles on the roof, which are all made of Chinese fir. The pillars of the house are all cut out of big Chinese fir, and the pillars are all connected by straight sleeves with Chinese fir of different sizes, although none of the nails are strong. There is also a hanging building around the house, and the eaves of the building are like wings. The walls of the house are closely inlaid with cedar boards, and the delicate inside and outside are coated with tung oil, which is clean and bright.

The bottom floor is not suitable for people. It is used for raising poultry and placing farm tools and heavy objects.

The second floor is a place to eat and live, with a bedroom inside, and outsiders are generally not allowed to enter. Outside the bedroom is a hall with a fireplace, and the family eats around the fireplace, which is spacious and convenient. Because there are windows, it is bright, well lit and well ventilated. Family members often do manual work and rest here, and it is also a place to receive guests. On the other side of the hall, there is a wide corridor connected with it. There is a railing half a person's height outside the corridor, and there is a row of benches inside. Families often rest here, and mothers will dress up their daughters here during festivals.

The third floor is airy, dry and spacious. In addition to being used as a living room, there is also a small room for storing food and things.