The Application And Research Of Symmetrical Beauty Principle In The Structural Design

We can find the symmetrical form at everywhere in the nature: Snowflake crystal, birds' wing, flowers and trees' leaf and so on. It is not difficult to discover that we live actually in a world of full of symmetrical. The symmetry is divided to three fundamental modes: the full symmetry, the approximate symmetry and the dissymmetry. Since primitive society of the humanity, the physical product from asymmetrically to symmetrically has processed in the perfect way; the three forms of symmetry nearly already seep to all domains of discipline.The symmetry complied with mechanics rule, the design pattern of symmetrical becomes a kind of mainstream and spreads for a long time down, and the primary reason of its existence is the robustness that balanced displays to the strength, the symmetrical structure withstand the torsion deflection is much more bigger than the dissymmetrical structure in structural mechanics. Therefore, The " Code for seismic design of buildings" stipulates that the plane arranges of construction and the anti-lateral force structure had best be regular symmetry.The symmetrical principle is very widespread in the structural design, no matter is the structure build, basic structural unit, even the analysis method of load, the principle of symmetrical all be used. This paper discussed the artistry and the rationality of symmetrical beautiful principle thoroughly by combining esthetics and mechanics. Bracket set and arch are the most representative kinds support component; the example of three symmetrical form utilization, the entity structure, the member structure, and the thin-wall construction is too numerous to mention one by one. Symmetrical structure bring to the people safe, balanced, stable, grave and the perfect feeling, break the symmetrical construction shape not only to increase the difficulty for the structural design, but also cause the construction to change complex, thus caused the uneconomical.The structure design belongs to the category of the technique level, but the whole technique levels contain itself beauty on science. Beauty is not abstract or empty, it can not get away from the structure and sport of the material, can not get away from the existence of the main body and the object. Re- knowing the symmetry and the equilibrium incarnated by external applied loads and the weight of the structure itself is important and realistic in the ages that many persons neglect the basic rule about technique and art.