Technology of "HERAS-II," New Version of Hazards Estimation and Restoration Aid System

抄録

The Hazards Estimation and Restoration Aid System, "HERAS," developed by RTRI in 1992, automatically estimates the damage grade of each point based on inputted earthquake elements. When combined with the Urgent Earthquake Detection and Alarm System, "UrEDAS," developed by RTRI, it provides the quickest and most accurate restoration aid. HERAS has useful databases for the daily maintenance of structures and can easily select the weak points against an optional hypothetical earthquake. This system is also useful for repair and reinforcement of structures before a disastrous event occurs. A new version of HERAS called "HERAS-II" that has a new hazard estimation method and databases was developed in 1997. This paper explains the difference between the old type "Old HERAS" and new "HERAS-II," and introduces the databases and the tools of HERAS-II.