1Post graduate student, Structural Engineering, NITK, Surathkal
2Assistant Professor, Department of Civil Engineering, NITK, Surathkal
3Lecturer (Selection Grade), D.R.R. (Govt.) Polytechnic, Davanagere, Karnataka
4Assistant Professor, Department of studies in Civil Engineering, UBDTCE, Davangere
*Email id: channappatm@gmail.com
Online published on 9 December, 2013.
Structural damages and economic losses caused by natural disaster like earthquakes concerns about structural safety and led to the proposal of various strategies to improve the dynamic performance of bridges. The steel truss railway bridge experiences dynamic vibrations due to train loading and earthquake loading. This paper presents the application of passive control device such as Tuned Mass Dampers (TMD) to steel truss railway bridge, which is used to reduce the vibration of bridge structures. The steel truss railway bridge is subjected to live load such as Heavy Mineral Loading (HMT) i.e. train loading and earthquake loading. The bridge structure is modelled using commercially available finite element software SAP 2000. The response parameters such as displacement, accelerations are observed for steel truss Railway Bridge with and without TMD for HMT loading and earthquake loading. The reduction in the displacement and acceleration are observed for bridge structure with TMD when compared to bridge structure without TMD.
Tuned mass dampers, Mass ratio and Steel girder, displacement, acceleration
