In ancient buildings, beam bracing trusses then support roofs, but today's buildings that require little depth can change flat beams to slope beams, which not only reduces the cost of the project, but also increases the indoor height of the whole building, without a sense of oppression.
Because the ancient buildings possess the above characteristics, the above characteristics should be realized as far as possible in the antique buildings. In the ancient Chinese architecture, the ancient construction of the Soviet style gardens in the Ming and Qing Dynasties was the most representative and well known. Therefore, in the form of the antique architecture, the ancient construction of the Soviet style and the Qing Dynasty was the most important.
The main force components of ancient buildings can be divided into columns, beams, trusses, purlin and rafters. The direction of transmission is: roof to rafting, purlin, truss to beam to column, clear way and simple force. The beam in the ancient construction is simply supported beam, which is very unfavorable to the earthquake resistance of the building, so the arch is born. But in the frame of reinforced concrete structure, the beam and the column are all rigid, the beam bears the seismic action, thus the arch is built up, and the roof is now mostly used in the cast in situ type. Purlin, rafters and other components also become non essential components, which can be cancelled. This will affect the external facade, so the roofing works of antique buildings become the key nodes in the whole project.
