This technology is a rapid reinforcement system for collapsing structures, consisting of a transverse structure such as a beam, longitudinal column structures supporting both ends, a fall-prevention structure placed on guide rails beneath the transverse structure, and power transmission members connecting the longitudinal structures.
Columns severely damaged by typhoons, earthquakes, or terrorist attacks can trigger total building collapse, and due to brittle failure characteristics like buckling, it is extremely difficult to restore their original strength. Existing rapid reinforcement technologies focus on materials and maintenance, such as quick-setting admixtures, anti-expansion mortar, or bridge bearing replacements; there are almost no structural disaster prevention systems that automatically block collapse against sudden, extreme loads like explosions.
This technology transfers the downward rotational force generated when a transverse structure collapses to a spur gear, worm gear, worm, and rotating shaft at the end. The drive and threaded parts of the movable member at the bottom of the shaft pull the fall-prevention structure along the guide rails toward the collapse point. Ball-shaped wheels and guide grooves facilitate movement, a large-pitch threaded section accelerates initial movement, and a cutting part severs the connection member on the side that rotates first, allowing the opposite connection member to wind and pull the support into place. Applicable to large buildings, bridges, underground structures, and critical public facilities at risk of terrorism or explosions, it uses the force of the collapsing beam itself—without power or human intervention—to slide in a replacement support, delaying total collapse and buying time for rescue operations.
This invention was developed with support from the Ministry of Education, Science and Technology for the development of resource-saving, eco-friendly construction methods.
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