How do Japanese buildings resist earthquakes?

As we all know, Japan is a place with frequent earthquakes, ranging from more than 2,000 to more than 10,000 times a year. According to this ratio, Japan can be said to be experiencing earthquakes every day.

Figure of earthquake frequency in Japan over the years

In the face of such a geographical environment where earthquakes occur every day, the Japanese are ok. Why? This must be because of the architectural level in Japan. Such as how to resist earthquakes? How is waterproof made? How to keep warm?

Today, taking the construction process of self-built houses by ordinary Japanese people as a reference case, let's take a look at the meticulous construction of typical Japanese people.

Level the site, start ground survey and positioning, and prepare for foundation soil construction.

Next, a special ultrasonic detector is used to test the geological bearing capacity of soil.

After the data is confirmed to meet the building requirements, first lay a layer of fine sand and gravel on the base, and level and tamp the foundation with a rammer!

After repeated compaction, lay a layer of high-quality plastic waterproof and moisture-proof film to prevent moisture in underground soil from infiltrating into the room through the foundation slab.

Then cement mortar is poured to strengthen the foundation to prevent the foundation from moving, twisting and uneven settlement in the soil.

After the cushion layer is hardened, install the formwork around it, and then bind the raft foundation plate reinforcement and the anti-beam reinforcement!

After the unified pouring is completed, the galvanized steel bolts are embedded in the concrete of the foundation wall, and the subsequent construction will be connected and fixed with the bottom of the upper wood bearing frame.

Then install water supply pipeline and drainage pipeline in the foundation of underground overhead layer.

Between the load-bearing structures of the horizontal soil platform, the nonflammable glass fiber insulation blanket made of light yellow inorganic materials is filled to keep warm!

The foundation part is over here, and then the main structure construction is started, and the wooden frame is built in turn.

The tenon-mortise structure closely embeds all wood structure members, and at the same time, in order to strengthen the integrity of the villa, galvanized bolts and special-shaped angle steel are needed!

Roof structure construction, build wooden slope roof truss, and lay waterproof and moisture-proof coiled materials!

Then, the solar panel fixing seat is installed on the upper part of the roof tile. At present, rooftop solar power generation in Japan is booming. As a renewable clean energy, it can get some economic compensation from the government!

Solar panels are installed on the roof.

Waterproof balcony is very important. Here, the Japanese construction team used a kind of glass fiber reinforced plastic FRP-the so-called "glass fiber reinforced plastic" in China in the past, to carry out waterproof structure treatment.

The interior wall structure is filled with non-combustible glass fiber insulation carpet made of fixed inorganic materials, and the insulation work is urgent!

After reading the whole process of Japanese self-built houses, we can find that Japanese self-built houses are very handy in controlling new technologies, and the implementation of various details is very strict.

Do you want to build such a simple and comfortable Japanese building?

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