MUMBAI, India, Feb. 27 -- Intellectual Property India has published a patent application (202641019006 A) filed by P. Manikanta, Visakhapatnam, Andhra Pradesh, on Feb. 19, for 'a systematic analytical framework for evaluating blast response of high-rise structures with vertical stiffness irregularities.'
Inventor(s) include P. Manikanta; Dr. Rambabu Koripella; and Dr. M. Pavan 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: "This invention proposes a systematic analytical framework for evaluating the blast response of 20-storey reinforced concrete framed structures with controlled vertical stiffness irregularities. Stiffness irregularities (10%, 20%, and 30%) are intentionally introduced by modifying storey heights to represent parking, commercial, and duplex levels. Using a 3000 kg TNT charge at standoff distances of 10m to 25m, the structural models undergo nonlinear time-history analysis via the Fast-Nonlinear Analysis (FNA) method. The study evaluates global performance indicators such as lateral displacement, storey drift, and base shear. Results demonstrate that vertical stiffness irregularities substantially amplify structural responses, with storey drift increasing by up to 78% in irregular configurations compared to regular frames. The framework identifies the most vulnerable configurations and provides a scientific basis for optimizing high-rise designs against surface blast loads. This analytical approach contributes to the development of safer, blast-resilient urban infrastructure by identifying critical stiffness configurations that influence global structural stability."
Disclaimer: Curated by HT Syndication.
