Why is it necessary to check the seismic resistance of the material at the time of design? DMC metal ceiling material seismic performance acquisition! / Gyeongju Earthquake Pohang Earthquake Ceiling Goods

Hello! It is a new value creation Zenfix for the ceiling.

 

In today's post, I'll talk about why we use seismic materials when designing.

Gyeongju Earthquake (Union News) / Pohang Earthquake Damage Case (CBS)

On September 12, 2016, there were two strong earthquakes in Gyeongju City with a Richter scale of 5.1 and 5.8 and a seismic intensity of 7.

 

This disaster was the largest of all the earthquakes that occurred on the Korean Peninsula!

 

Vibrations were detected nationwide, with 23 injured and 5,120 property damages, which also caused serious damage.

 

After that, the Pohang earthquake with a scale of 5.4 and a seismic intensity of 6 occurred in 2017, and the recognition that South Korea is no longer an earthquake safe zone was planted.

Article 48-3 of the Building Law "Disclosure of Seismic Capacity of Buildings"

As a result of this, the scope of seismic design has been expanded for buildings of 200 m2 or more on the second floor.

 

Earthquake resistance at the time of design has become a part that cannot be overlooked.

Damage caused by structural and non-structural elements

According to the race and Pohang earthquake statistics, in the case of a medium-sized earthquake

 

You can see that the damage caused by the damage of the non-structural element is larger than that of the structural element.

 

When an earthquake occurs, damage to non-structural elements, falls, and falls can cause damage to human life and property.

 

Because the evacuation route is obstructed / blocked, the function of the building is lost, and secondary or tertiary damage occurs.

 

Non-structural elements are also important seismic design targets.

KDS 41 17 00 "Building Seismic Design Standards" / Importance factor for non-structural elements

This often appears in related laws and regulations. Importance factor is 1.5,

 

For non-structural elements such as parapets, stucco bricks on the outside of buildings and externally mounted finish stones, seismic design is required.

As you can see, the fact that ceiling materials, which are non-structural elements, also require seismic design.

The content that Zenfix's DMC metal ceiling material has received seismic results! Let's continue to investigate.

Seismic ceiling system third party comparison table

 

Introducing Zenfix's seismic system.

 

Zenfix's seismic system is a clip bath system used when installing existing ceiling materials.

 

We will use a construction method that adds only a few materials that incorporate the technical capabilities of Zenfix.

 

First, replace the existing wire clip with a clip bar clip.

 

Clip bus system structure

Wire clip / clip bar clip

The wire clip is made of thin wire and will not grip the carrying and clip bar firmly in the event of an earthquake or strong wind.

 

Therefore, clip bar clips are used to increase the cohesiveness of lightweight steel frames and improve seismic performance.

Seismic test photo of Zenfix

After stacking the lightweight steel frames in this way, the metal ceiling material DMC of Zenfix is ​​sandwiched.

 

Finally, install the one-piece cap, which is a ceiling material detachment prevention system unique to Zenfix, and you're done!

 

The one-piece cap is made of a metal material, which is safe against fire and plays a role of firmly holding the ceiling material even when it is shaken by an external impact such as an earthquake.

 

Through this process, Zenfix's seismic system achieved the highest SDS (Short Period Design Spectral Acceleration) 1.8G in Japan.

This is a numerical value that supports a seismic intensity of 12 and a Richter scale of 9.0.

Photograph of the 1960 Chile and Valdivia Great Earthquake

It is said to have the same seismic intensity as the 1960 Chile earthquake, which killed 909 people, was damaged by the tsunami in Hawaii and Japan due to the earthquake, and had the power to explode a dormant volcano.

 

You can rest assured no matter what kind of earthquake will come in the future, right?

Damage caused by the scale and intensity of the earthquake

 

just! Such excellent grades are effective unless you use materials that clearly indicate the grades! please refer.

How to make a safer building! This is DMC.

For other inquiries, product construction, and sales inquiries

You can contact us using the contact information below or Cat Talk Chat.

 

thank you.

 

 

[Zenfix: 1644-0487]