ALEXANDRIA, Va., Dec. 9 -- United States Patent no. 12,492,635, issued on Dec. 9, was assigned to TONGJI UNIVERSITY (Shanghai).
"Segment with concrete embedded with fluid-filled steel pipes" was invented by Zhiguo Yan (Shanghai), Hehua Zhu (Shanghai), Jiantao Li (Shanghai), Yi Shen (Shanghai) and Tongsheng Yu (Shanghai).
According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention relates to an intelligent segment with concrete embedded with gas/liquid-filled steel pipes, the segment including a concrete portion, wherein the concrete portion serves as a main stress component of the segment, is made of ultra-high performance concrete and is provided with a hollow portion for arranging the steel pipes; a...