アイ・エム・エー List of Products and Services

Why do buildings collapse? There are mainly three threats from earthquakes: "strong shaking," "repetition," and "resonance phenomena." No matter how earthquake-resistant a building is, if the shaking exceeds the building's strength, it will fail and start to sway. When a building sways significantly, its internal structure gets damaged, making it weaker and more susceptible to further shaking. *For more details, you can view the related links. Please feel free to contact us for more information.*

• Anti-vibration, earthquake-proof, vibration-isolating devices

The true nature of an earthquake is energy. During a major earthquake, the energy that enters buildings from the ground causes deformation and shock (response acceleration) to the buildings themselves, transmitting shock to the "people" and "objects" inside. To mitigate damage to "buildings" and "people," it is very important to perceive seismic forces not as forces but as energy, and instead of merely trying to reduce the deformation, to consider how to consume and diminish that energy. Recently, laws have begun to incorporate this way of thinking. *For more details on the column, please refer to the related links. For further inquiries, feel free to contact us.*

• Anti-vibration, earthquake-proof, vibration-isolating devices

It refers to earthquake measures related to the structure of buildings. Broadly, it means ensuring that buildings do not suffer destruction or damage from earthquakes. In a narrower sense, it distinguishes between seismic control and base isolation technologies, and refers to the idea of preventing destruction or damage by making buildings rigid to counteract seismic energy with force. For existing buildings, seismic performance varies depending on the time of construction. This is because the seismic standards for new constructions have been revised after each major earthquake, and buildings constructed in more recent years are built to meet higher standards. *For detailed content of the column, you can view it through the related links. For more information, please feel free to contact us.*

• Anti-vibration, earthquake-proof, vibration-isolating devices

Seismic resistance refers to the method of strengthening buildings to prevent them from shaking. This is achieved by adding braces within the framework and reinforcing the structure by attaching plywood from the sides. Additionally, the joints between columns and beams are reinforced with fixed hardware. The "stiffness" necessary to maintain the shape of an object is directly applied to vibration mitigation. *For more detailed information, please refer to the related links. Feel free to contact us for further inquiries.*

• Anti-vibration, earthquake-proof, vibration-isolating devices

The "SL-CUBE" is an auxiliary device aimed at preventing the complete collapse or failure of buildings as an earthquake countermeasure. It consists of individual cubic units cut from square steel pipes, which are bolted together in layers. The layered cubes absorb energy progressively through an axial force transmission mechanism. After the vertical load-bearing capacity of columns expected to be damaged in an earthquake is lost, it takes on a supportive role by receiving axial forces in place of the columns. 【Features】 ■ Disaster reduction function ■ Pinpoint construction method ■ Independent mechanism ■ Performance evaluation based on experiments ■ Rapid construction *For more details, please download the PDF or feel free to contact us.

• Other safety equipment

"GVA II" is a basic seismic control system that absorbs repeated vibrations using a uniquely developed phenolic resin. Even after experiencing repeated major earthquakes, it enables homes to remain livable. It disperses and absorbs seismic energy, minimizing deformation of the home. The newly designed arm, integrated with a friction damper, features a simple structure that does not interfere with the connections (junctions between columns and foundations/beams) or intermediate columns. Since there is no need to consider interference, it can be installed either on the inside or outside when installing hold-downs. 【Features】 ■ Absorbs repeated vibrations with phenolic resin ■ "Diamond structure" that minimizes deformation of the home ■ Simple structure that is easy to design and construct ■ Effective seismic control with minimal installation *For more details, please download the PDF or feel free to contact us.

• Other safety equipment

The "K Damper" combines seismic resistance and vibration control, serving as a load-bearing wall certified by the Minister of Land, Infrastructure, Transport and Tourism to protect homes from earthquakes through the synergistic effects of its two functions. This product absorbs the kinetic energy of earthquakes by converting it into thermal energy through friction, applying brakes to the building's sway, and preventing deformation and damage. It achieves optimal effects and flexible floor plans with a limited number of installations. Additionally, the uniquely developed phenolic resin friction material maintains its performance under both cold and hot conditions, making it suitable for use regardless of climate or region. 【Features】 ■ Reduces shaking by up to 76% ■ Protects buildings from strong, prolonged shaking and recurring aftershocks ■ Significantly reduces repair costs after major earthquakes ■ K-type structure efficiently absorbs earthquake vibrations ■ Applies braking technology from railway vehicles to wooden houses *For more details, please refer to the PDF materials or feel free to contact us.

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