MEASUREMENT OF DISPLACEMENT STATE FOR RC APARTMENT BUILDINGS AT HASHIMA ISLAND USING SATELLITE POSITIONING INFORMATION

Abstract

Low cost GNSS sensors were installed on old RC buildings at Hashima Island, Nagasaki, JAPAN to measure deteriorated state. A statistical population moving average method was applied to those GNSS data as residual deformation measurement technique and analyzed in chronological orders. And temperature related expansion and contraction deformation were found in those buildings indicating their elastic behavior. Furthermore, the data can be continuously recorded and transferred in harsh measurement environment.