ABSTRACT
ABSTRACT This paper presents a case study that reveals useful information to a stakeholder in verifying the condition of its bridge structure. It is demonstrated through a field testing carried out on an abutment of a historical railway bridge that exhibits a vertical crack on its wing wall running through its full height. Although this does not pose danger to normal traffic it was observed that the crack moves under live load and obtaining real behaviour of the crack movement was crucial for the stakeholder to assess the condition of the structure, which is the main focus of this study.
This is tackled by monitoring the crack movement on the abutment wing wall using an optical camera system pointing to optical targets attached on the structure. As a result of this study, three-dimensional crack movement under train loading is obtained and the response of the test structure to a train loading is further analysed within the scope if this study.
