• The seismic ground motions for the design are created taking into 　consideration the amplification of seismic waves due to the ground of the proposed site.
• The seismic input for the design will be developed considering the long-period seismic motion, and its effect on the building will be evaluated.

• The seismic risk assessment method developed by Obayashi can predict the　economic loss of buildings due to earthquakes.
• The seismic risk of the construction site is evaluated using the latest seismic data for PML (the amount of loss with a 10% probability of exceedance in 50 years).
• The results of the seismic risk assessment can be used to propose cost-effective earthquake countermeasures and support the formulation of business continuity plans (BCP).

• Conventional seismic isolation systems are capable of reducing building vibration to 1/3 to 1/5 of seismic vibration.
• Super Active Seismic Response Control "Laputa 2D can reduce building vibration to 1/30 to 1/50 .

• The cushioning device is installed between the seismically isolated building and the retaining wall. The high-damping rubber cushioning material absorbs the energy of the collision through plastic deformation and mitigates the impact force.
• This improves the safety of the building and its occupants in the event of a larger-than-assumed earthquake.

The NEWTRADA is a cable rack for seismically isolated buildings that moves in response to seismic vibration by pin-jointing the racks together. By placing cables on the rack, the cables also move while being supported by the rack during an earthquake, reducing the risk of damage or cutting and facilitating maintenance. In addition, the swing width of the cables is also reduced, eliminating the need to provide extra length and optimizing cable length for space saving cabling.

• Labor-saving, low-cost, and quality-stabilizing seismic isolation installation method
• The "seismic isolation device pressure-filling method" is a new method in which a gauge plate is installed on a normal concrete foundation and the gap between the gauge plate and the flange plate on the seismic isolation device side is crushed and filled with cementitious adhesive material.
• This method does not require the advanced skills and knowledge of conventional methods that use high-fluidity concrete to fill the entire area under the base plate, and it is easy to control quality and reduce costs because grouting is not required.

The end of the main beam is reinforced in a haunched shape, and the position of maximum stress generation is shifted away from the end joint cross section where the weld and high-strength bolt joints overlap.

• High strength and tenacity are achieved.
• Highly reliable column-beam joints are achieved.
• Economical design

By filling high-strength, high-fluidity concrete into square steel tube columns, superior structural performance is achieved compared to steel tube columns alone.

• Preliminary study of airflow in data halls and temperature distribution of air around rack suction surfaces and racks.

• By taking outdoor wind velocity into account in the temperature distribution outside the building, the impact of exhaust heat from the data center on the neighboring environment is considered in advance.

• Preliminary study of different air temperature distributions depending on server installation patterns.

• Preliminary study of air distribution around air conditioning units and air conditioning equipment rooms as well as servers.

• Part of the cement is replaced with industrial by-products such as blast furnace slag fine powder (*1) and fly ash (*2), which emit less carbon dioxide.
• Part of the cement is replaced with industrial by-products such as blast furnace slag fine powder (*1) and fly ash (*2), which emit less carbon dioxide.

※1　By-products from steel production
※2　By-products from coal-fired power generation
※3　Varies depending on materials and formulations.

• Low-carbon concrete "CLEAN CRETE"(Available only in Japanese)

• Geothermal heat is a renewable energy source that can be used stably, and an efficient heat pump system can be built using the seasonal temperature difference from the ground.
• Obayashi's system has developed and commercialized a geothermal heat exchanger that is more efficient and less expensive than conventional systems.

• Obayashi 's Geothermal Heat Utilization Technology Honored with Minister of the Environment's Award for Global Warming Prevention Activities(Available only in Japanese)

• In recent years, various thermal environmental countermeasures have been required to deal with extreme summer heat, and those that utilize the vaporization heat of water, such as mist spraying and water sprinkling, are effective.
• "Uchimizu-Wall" is an exterior wall material that cools a space with the vaporization heat of water. It cools both the space and people by dripping a small amount of water onto the exterior wall to moisten it.

• Development of "Uchimizu wall®" water retaining cooling panel for outdoor application(Available only in Japanese)

• This tool is designed to optimize energy and costs through facility design support linked to BIM.

• Development of "BIMZONE®-∑-2020," the latest series of facility design support systems linked to BIM(Available only in Japanese)