An Earthquake Resistant Building covered with Carbon fiber strings curtain

Here is the World’s first earthquake-resistant building supported with thousands of CF Rods (Carbon Fiber Rods)

Japan is the country where frequent earthquakes are common. In order to find a better solution for this natural disaster Researchers and citizens are continually looked forward. 


Japan’s Most Powerful Earthquake Ever-Known


On the date of 11th march 2011 an earthquake of 9.1 magnitude occurred and over 20,000 people were killed and this massive undersea megathrust moved the Honshu (the main island of Japan) by 2.4m (8 ft). Japan estimated $300 billion for the Material damage because of this earthquake and the ensuing tsunami. Since the year 1900, it was the fourth most powerful earthquake in the world and recorded as the most powerful earthquake ever in Japan yet.

A Blooming Idea


After this massive disaster, A Japan architectural firm in Komatsu, Ishikawa prefecture, Japan invented a curtain-like carbon fiber rods protection to a 3 story building that can withstand strong earthquakes with a collaboration of Textile Company. 


The textile company named Komatsu Seiren is responsible for developing the rods and earthquake-proof building is the home office of Komatsu seiren located in the most active earthquake zone. Kengo Kuma is an architect and a professor at The University of Tokyo also founder of an architectural firm collaborated with the textile industry to test out his new material.


CABKOMA Strand Rods


Kengo Kuma invented the rods that are lighter and 90% stronger than steel and iron rods. 


The strings are made of thermoplastic carbon fiber composite with 9mm wide. Kengo Kuma explains that 160 m string weighs only 26lbs (11.7 kg) and the strings are light in weight and are seven times stronger than iron strings.



The strong flexible braided rods are anchored and tied from ground to the roof and making the entire structure sway when earthquakes occur but will not crumble. The engineers attached 1031 rods to the roof and fix them to the ground.


At the time of the earthquake, the building sways from side to side and results in shaking of the building and results to collapse. But these CF strings help to stretch and absorbs the vibration and draws the structure back in the original position in order to avoid shaking of the building.


Analysis of the Building


The images show the tensile strength applied to the rods at the time of an earthquake. Blue color indicates the least tension, the tension ascending ranging from Yellow and Red indicates the areas of high tension


Also in the Interior


These Braided rods are also installed anchored in the interior walls to avoid the internal collapse. So that people inside the building at the time of the earthquake can safely exit the building.  

This gives a bigger hope that people can survive even at the time of life-threatening massive earthquakes. 

"Let’s build to live with earthquakes, not to fight it"

Kengo Kuma