What are the structural characteristics of the bamboo house in Guangzhou? What is the reason for its formation?

Bamboo house, as the name suggests, is called bamboo house because it has a narrow and small frontage and a long and narrow depth, which resembles a bamboo tube. There is another way to call the bamboo house, that is, "store house". The bamboo house in Guangzhou was created in the 19th century. At that time, Guangzhou's industry and commerce entered into a period of rapid development, the city's population increased rapidly, the city's land began to be tense, the price of land rose, in this situation, the bamboo house this kind of commercial and residential housing construction form came into being, and became one of the traditional forms of housing in modern Guangzhou. Ordinary citizens and some wealthy families became its occupants. From the beginning of the 20th century, with the development of industry and commerce in Guangzhou, the bamboo house or store house also developed rapidly. At that time, almost all the streets in Guangzhou with a high concentration of commerce had a large number of this type of house. The bamboo houses were mainly concentrated in Xiafeifang, Yanyun West Street, General East Street and General West Street.　Bamboo house is a one-room building. Its opening is small, the depth is large, the ratio of the two from 1:4 to 1:8 varies, but the width of 4 to 5 meters. The short one is about 7 meters, and the long one is more than 2O meters. Rectangular, arranged on both sides of the narrow streets.　Bamboo house is generally divided into three parts: front, center and back. The front part is the main door and the doorway hall; the middle part is the hall with the god's building, which is single-story and higher, and the room behind the hall; and the back part is the room and the kitchen and toilet. The three parts are separated by a patio and connected by a corridor. The entrance, like the Xiguan Daiya, is equipped with a triple door, with a foot door (ceiling fan door) outside, a trip bar in the middle, and a folio thick hardwood door inside, which serves the functions of light, ventilation, and security. Bamboo houses seldom open windows to the outside and are completely closed. Upstairs on the street side with an internal balcony, balcony with wooden or patterned colored porcelain tube as a guardrail, mostly half-moon shaped. The balcony can not only light through a few, drying clothes, but also for leisure and rest, looking at the street, is the only one of the bamboo tube house closes the door to the outside world after the ground floor, "the pavilion in the air". The pattern of the top floor has various designs in the traditional Lingnan style.　The bamboo houses in Guangzhou are characterized by low-rise, high-density and suitable for the southern climate. In addition to Guangzhou, bamboo houses are also found in the Pearl River Delta and the Xijiang River Basin in the province, as well as in Shantou and Zhanjiang. Haikou City, Hainan Island, which was formerly part of Guangdong Province, also has many such houses. Hanoi, Vietnam and some cities in Southeast Asia also have bamboo houses. Into the 1980s, with Guangzhou's economic and social development and progress in urban construction, many bamboo houses were gradually demolished and converted into modern commercial and residential buildings. At present, some bamboo houses are still preserved in the area of Xiguan, Liwan District.