Cultural connotation of door

From ancient thatched cottages to high-rise buildings in the period of technological expansion, doors and windows have always been accompanied by human beings.

As the saying goes, "portal" often represents a crucial level and access. A door is a door and a door is a window. The door is the barrier between the inside and the outside, and the window is the communication between the inside and the outside. It is the doors and windows that make the limited space extend indefinitely.

In the long history, doors and windows have grown from small to large, from simple to solid, from perfect to moderate, from practicality to efficacy, from economic consideration to aesthetic pursuit. The improvement of doors and windows by human beings can be said to mark the progress of human beings, and doors and windows are also a proof of the progress of human civilization.

Building doors and windows have a long history in China, which can be traced back to the Shang and Zhou Dynasties more than 3000 years ago. In ancient times, people lived in caves and in wild places. The earliest human settlements in China are natural caves. Numerous strange and deep caves provide the most primitive homes for human beings, and the grass cover at the mouth of the cave is probably the earliest door.

After entering the slave society, specially defined doors and windows appeared because of the earliest large-scale wooden rammed earth buildings and courtyards. The main form of door is the version door.

The window developed by the door has also experienced a period of development history.

In the Western Zhou Dynasty, the earliest physical form of window decoration appeared in China, while in the Han and Tang Dynasties, the art of window decoration developed, with new window decoration such as horizontal window and straight window, and window decoration patterns such as net pattern, loose pattern and ball pattern. The period of Song, Liao and Jin Dynasties was the mature period of the development of window decoration art, and there appeared many types such as railing hook window, floor-to-ceiling cover and partition window.

Ming and Qing dynasties are the development period of traditional window decoration art in China. There are many kinds of window decorations with rich shapes, such as picking windows and leaking windows. Since then, with the development of ancient technology in China, the content and form of window decorations are constantly adding new content.

The development of modern doors and windows has experienced the era from wooden windows to steel windows.

In the early wooden window stage, it was all solid wood, and paper was pasted on the window to play the role of wind and lighting. This wooden window is painted with natural paint. Zheng Banqiao, a famous painter in Qing Dynasty, looks at the tree shadow reflected by moonlight on the paper window, which is a masterpiece of ink bamboo slips handed down from generation to generation. Therefore, doors and windows not only play an important role in architecture, but also are the source of inspiration for literati and artists. Later, the doors and windows were all made of solid wood, and the glass was directly embedded in the wooden frame, which could play the role of lighting and shelter from the wind and rain.

19 1 1 year, steel doors and windows were introduced to China. Although the performance of steel doors and windows is good, there are few domestic manufacturers of high-quality cold-rolled plates, which leads to the price increase of color steel plates and the high price of finished windows, losing the competitiveness with aluminum alloy doors and windows.

Modern doors and windows have developed from the era of plastic steel windows to the era of aluminum alloy doors and windows.