"Professor Nie, are you sure you want to use a plan without a single nail, right?" Nie Guangyi asked Nie Tianqin.

There is a sentence like this in "Min Xiaoji": "The bridges in central Fujian are the most beautiful. There are houses built on the bridges and their wings are beautiful. There is no place that cannot be painted."

The wooden arcade bridge is a unique category in the history of ancient bridges in the world.

Wooden arcade bridges are often built between dense mountains and dense forests and deep valleys and dangerous streams, turning streams into thoroughfares.

Wooden arcade bridges are basically connected by mortise and tenon joints.

When the Wan'an Bridge was first built, there were no nails.

"Datou, since you want to restore Wan'an Bridge to its original appearance, you must use braided beam wooden arch bridge construction techniques. You must use logs and traditional wooden construction tools." Nie Tianqin responded.

"No modern tools are used at all, and the beam weaving technology is used to connect the mortise and tenon structure. The requirements for the craftsmen are quite high. This is not something I can complete alone." Nie Guangyi expressed his opinion.

The construction of the wooden arcade bridge needs to be directed by a senior carpenter, who turned out to be Grandpa Qiu.

Although Nie Guangyi is talented, after all, he lacks experience in field operations.

There is still a gap between the model and the actual construction.

In addition, it requires the cooperation of multiple carpenters at the same time to complete it.

The craftsmanship of building wooden arcade bridges has always been passed on orally and heart-to-heart from masters to apprentices.

Many of them are not clearly recorded and rely on the feelings and experiences of the masters.

Nie Guangyi didn't like such unclear things.

The first thing he did when making models was digital modeling.

It is still difficult for Nie Guangyi to completely return to the "original".

Especially the issue of cooperation with Grandpa Qiu’s disciples.

Nie Tianqin was extremely insistent on this issue.

He is not opposed to "global material selection", nor is he opposed to giving the selected wood the ultimate fireproof treatment. The unique construction skills must be authentic.

"We Chinese have an old saying, which is called [Mortise and tenon will be a prison for ten thousand years]. Compared with nails, the mortise and tenon structure has many advantages."

Nie Tianqin has always particularly admired the mortise and tenon structure.

[Tenon is a piece of wood inserted into an orifice. Commonly known as a tenon, it is also called a bamboo shoot.]

The mortise and tenon structure is a concave-convex connection method used in wooden furniture and wooden buildings in my country.

The protruding part is called the tenon, which is the tenon of the mortise and tenon joint.

The recessed part is called the mortise and tenon, which is the joint between the tenon and tenon.

It's a bit like the relationship between a screw and a nut, only more natural and seamless.

Mortise and tenon structure has a long history.

Among the ruins of the Neolithic Age in Hemudu, there are mortise and tenon structures, dating back more than 7,000 years.

As early as the Spring and Autumn Period and the Warring States Period, it already had very mature applications.

It reached its peak during the Tang and Song Dynasties.

By the Ming and Qing dynasties, the mortise and tenon structure had begun to evolve from complexity to simplicity.

The mortise and tenon structure does not exist alone.

Each component needs to be organically connected to avoid each other.

Without using a nail or a trace of metal, you can complete the creation of a reasonable connection, up, down, left, right, thickness and diagonal.

The seams are tight and there is no room for leaks.

This requires carpenters to have a clear understanding of the structure of the entire piece of furniture or the entire building when they decide to build a piece of furniture or a building.

The mortise and tenon structure has three major advantages: high precision, high strength and low cost.

Not only is it rigorous and sturdy, it can also be easily disassembled and installed.

It was widely used in ancient my country and has been passed down to this day.

Only by relying on the concave and convex fit between the wood, solid pieces of furniture and solid buildings can be assembled.

I have to say, it is a very magical thing.

The mortise and tenon structure is not only the crystallization of the wisdom of the ancients, but also the testimony of human civilization.

To be more specific, the traditional construction technique of wooden arch bridges is to use traditional wooden construction tools and core technologies such as braided beams to build a stable arch bridge using mortise and tenon joints.

With the development of the times, nails and modern tools have long replaced traditional handicrafts.

However, as the "national quintessence" of my country's ancient architecture and ancient furniture, the mortise and tenon craftsmanship still has irreplaceable advantages.

Whether it is the Miao Village stilted building construction techniques, the Dong wooden building construction techniques, the traditional wooden arch bridge construction techniques, or the Cantonese, Beijing and Ming style furniture making techniques, the mortise and tenon structure are the soul of these techniques.

Compared with modern tools such as nails, the mortise and tenon structure has four major advantages.

First, it is more sturdy and durable. The mortise and tenon structure can withstand twisting in all directions between wooden parts.

Second, it is not easy to rust. The ancient rare wood furniture collected in the museum that has been passed down for thousands of years is all made of mortise and tenon structure.

Third, it is easy to disassemble. The mortise and tenon structure is all alive. The Wan'an Bridge was destroyed by floods before, but it can be rebuilt because the structure is still there.

Fourth, it is friendly to wood. Driving nails into wood can easily cause the wood to split.

"But, Professor Nie, there are already very few woodworkers who can master the art of mortise and tenon. The process is too complex, the structure is too rigorous, and the precision requirements are still so high."

"Indeed, if a carpenter apprentice without a family heritage wants to master the art of mortise and tenon, it will definitely not be possible within ten years." Nie Tianqin agreed.

"Professor Nie, this is not the most important thing."

"What do you think is the most important thing?"

"The most important thing is that the requirements are high and the money is little. Even if you learn it, there won't be much use for it."

"Why is there no use for it? Doesn't the Wan'an Bridge need to be rebuilt?"

"Professor Nie, how many years has this happened? The wives have all become mothers. In the end, only the old people in the village are left."

"This is indeed the dilemma faced by most non-genetic inheritance. Datou, we have to find a way to make young people willing to participate in the inheritance of human civilization."

"This is a bit difficult. Young people who really have that ability would have gone out to become master carpenters. Who would still stay in the village?"

"Butou, do you think so too?"

"Yes, it is unrealistic to ask young people to stick to traditional skills instead of going out to make money."

"Then why did an architect like you come back from Italy? Just to accompany dad?" Nie Tianqin sighed: "Dad has said that you can have your own development."

"This is my development."

"Da Tou, dad wants to hear the truth."

"Let me tell you this, Professor Nie. Human needs have always been progressive. When young people don't even have enough to eat, it will be difficult for you to pursue higher-level spiritual pursuits."

"What Datou means is that the inheritance of intangible cultural heritage can only rely on us elderly people."

"What's the meaning of this!" Nie Guangyi retorted: "I mean, young people like me who are young, wealthy and talented are the most suitable to be captured and use love to generate electricity."
Chapter completed!