Scope expansion and update completed! Introducing complete slits with thin residuals using high-precision cutting machines.
The "Thin Residual Type Complete Slit" is a seismic reinforcement method for columns using post-installed slits. The design and construction guidelines are suitable for the design and construction of post-installed slits in secondary walls of existing RC (Reinforced Concrete) and SRC (Steel Reinforced Concrete) structures. These design and construction guidelines can also be applied to renovation work when seismic slits are not installed according to the design documents in existing buildings (including those constructed after the seismic code revision in 1981). 【Applicable Columns and Beams】 ■ The concrete compressive strength of columns and beams should be between 13.5 N/mm² and 36.0 N/mm² when designed for seismic reinforcement. ■ The cross-section size of columns should be at least 400×400 mm. ■ When applying to extremely brittle columns, it is limited to columns with a shear reinforcement ratio (pw) of 0.1% or more. *For more details, please refer to the PDF document or feel free to contact us.
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【Basic Specifications for Post-Construction Slits】 ■Shape of the Slits - The slit width should be 30mm or more as standard. - When used for knee walls, drop walls, or horizontal slits, the slit length should be at least 50 times the slit width. - The remaining thickness of the slit should be 30mm or less. ■Reinforcing bars that cross the slit should generally be cut. However, when used for knee walls, one reinforcing bar can be left within the knee wall. *For more details, please refer to the PDF document or feel free to contact us.
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For more details, please refer to the PDF document or feel free to contact us.
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We are a group dedicated to alleviating the anxiety caused by earthquakes, ensuring that everyone can live their daily lives with peace of mind. Drawing on our past experiences, we do not settle for the status quo but instead focus our wisdom on the development of new products, continuously pursuing safety. Our products are used in various fields suited to their respective applications, widely utilized with the motto of providing peace of mind in daily life. We are committed to gathering the collective wisdom of all our employees to address the uncertainty that can strike at any time, and it is our mission to provide products that consistently prioritize safety and security. We will continue to strive with the aim of contributing to society.