MUMBAI, India, Feb. 27 -- Intellectual Property India has published a patent application (202641017866 A) filed by Vel Tech Rangarajan Dr. Sagunthala R&D Institute Of Science and Technology, Chennai, Tamil Nadu, on Feb. 17, for 'a method for enhancing seismic performance of ultra-high-performance concrete filled steel tube columns.'

Inventor(s) include Dr. M. Vinod Kumar.

The application for the patent was published on Feb. 27, under issue no. 09/2026.

According to the abstract released by the Intellectual Property India: "The present invention relates to a method for enhancing seismic performance of ultra-high-performance concrete filled steel tube (UHPCFST) columns used in structural applications. The method comprises filling a hollow steel tube with ultra-high-performance concrete, optionally positioning one or more internal steel elements within the concrete core, and subjecting the composite column to axial, lateral, and cyclic loading conditions representative of seismic actions. Controlled interaction between the steel tube, concrete core, and internal steel elements improves confinement effectiveness, delays local buckling, reduces brittle behavior of ultra-high-performance concrete, and enhances ductility and energy dissipation. The method enables systematic evaluation and optimization of composite column configurations for seismic-resistant construction without altering conventional materials or fabrication practices. The invention is applicable to high-rise buildings, bridges, and infrastructure located in earthquake-prone regions."

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