The mortise and tenon structure is exquisite and firm, why not use it in modern times?

Most tenon-mortise joints are difficult to be mechanically formed by simple molds, so the cost increases. We have to admit that there are few carpenters, and the manufacturing technology of these tenons and mortises is also very few. In the factory of furniture study, the salary of ten-level carpenters ranges from 1.2W to 2W, and even ten-level carpenters spend half a day making a set of tenons.

Due to the high cost of tenon and mortise, the requirements for material hardness or material value are also very high, either as hard as mahogany or as good as canary. Modern wood structures have made many improvements on this issue, such as using metal connectors instead of wood to transmit force, and adopting some modification processes to treat wood to improve its strength under unfavorable conditions.

These materials can bear the value of mortise and tenon, and further we can see that the price of mahogany furniture is prohibitive in the market. Another reason is that most modern buildings are made of reinforced concrete. On the one hand, the supply of raw materials is large, on the other hand, the service life of materials is long. Therefore, the lack of tenon-mortise structure in modern architecture is not due to its own reasons, but to the development of the times, the progress of science and technology, the improvement of productivity and a series of choices of the times.

On the basis of the old constraints, we can carry out more inheritance and innovation, box flashing, box flashing. When adjusting the elastic modulus and Poisson's ratio, only the stress and tension in the elastic stage are considered, and the unfavorable stress state is simply explained, so the prestress has nothing to do with anisotropy and its combination.

It is hoped that in the process of mechanization, as many high-quality mortises and tenons as possible will be separated from manual work, so that mortise and tenon furniture and products can easily return to people's sight.