Symmetry in the meaning of the structure

China's culture is y influenced by the interaction of both the world-entering Confucian culture and the world-exiting Taoist culture, which is reflected in the architecture, whether it is a grand palace, a solemn temple, a quiet garden, or a colorful residential house, all greatly express the formal language of these two cultures, which expresses a rich and profound traditional Chinese ideology, and the most important form of which is symmetry.

Symmetry refers to a form of the same shape and the same amount, if a straight line is used to divide the picture space into two equal parts, they are not only of the same quality but also of the same distance from each other. From the mechanical point of view, symmetry of the structural form, in the sense of gravity of the building, the relationship between the transmission of force and support to express the role of the building structure. Symmetry and space art form reasonable integration, so that the building structure itself is rich in aesthetic expression, but also comply with the laws of mechanics, to complete the building applicable, safe, economical and beautiful purpose.

From the point of view of aesthetics, symmetry is also the image of natural beauty. Symmetry is often associated with equilibrium, symmetry is the natural pattern of equilibrium, so that people have a healthy and calm sense of balance. Symmetry is concerned with the regular repetition between the same parts, presented in the building, often gives a solemn feeling of classical beauty and sense of order, which is why China's ancient imperial cities, palaces, temples, mausoleums are mostly symmetrical left and right.

The entire Ming and Qing dynasties of Beijing from south to north, along a 7.5-kilometer-long axis organically organized together, the axis to the southernmost Yongdingmen as a starting point, to the north of the Di'anmen Bell and Drum Tower for the end, the architectural space between the sequence of overlapping, climactic and orderly, especially in the Forbidden City, three halls of the plan layout of the most distinctive.

Many ancient cities in China have their own strict central axis. In the central axis, left and right symmetry, the city streets east and west, north and south, in a checkerboard lattice. This symmetrical design of spatial location is an organic imitation of nature, in which human beings get the pleasure of their senses and the cultivation of their sentiments.

From the cultural point of view, in the traditional cultural atmosphere of Confucianism, Taoism and Buddhism, Chinese culture emphasizes mediocrity and harmony. "Zhong is the meaning of adaptation, and Yong is the meaning of enduring." Over thousands of years of evolution, it has gradually been interpreted as the meaning of impartiality and appropriateness. The concept of "mediocrity" is reflected in the ancient architecture is the plane of the building for the symmetrical and uniform arrangement, the layout must have a solemn north-south axis main line, plays the role of the central nervous system. This pattern has become the epitome of all kinds of architectural combinations in ancient China - such as palaces, royal palaces, government offices, temples, ancestral halls, halls, academies and so on.

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