Recently, an indirect displacement estimation method using data fusion of acceleration and strain (i.e., acceleration-strain-based method) has been developed. This paper proposes an improved displacement estimation method that can be applied to more general types of bridges by building the mapping using the finite element model of the structure. An experimental validation of the proposed method was carried out on a prestressed concrete girder bridge, and the method provides the best estimate for dynamic displacements.

• 조수진(서울시립대학교 토목공학과 조교수, 공학박사) | Cho, Soojin 교신저자
• 심성한(UNIST 도시환경공학부 부교수, 공학박사) | Sim, Sung-Han