Soil–structure interaction in resonant railway bridges

Semi-active damping systems for railway bridges

In this paper, a semi-active control system for vibration mitigation of railway bridges is presented. The real time frequency response is estimated using a short-time Fourier transform, employing curve fitting to relevant peaks for increased accuracy. A control algorithm developed in MATLAB® is linked to a commercial FE-software, facilitating application on arbitrary structures. A numerical stu...

Intelligent Software for Railway Bridges Design

The Computer aided design software have not been used as extensively by the profession as the computer aided analysis software due to the inability of these software to capture the complex process of design, which is an open ended problem. Whereas human designers, using their intelligence, domain knowledge, experience, common sense and ability to continuously learn, have been able to solve such...

Vibration mitigation of railway bridges using adaptive damping control

In this paper, the advantage of an adaptive damping system is presented. A damper with variable stiffness is tuned based on estimates of the real-time frequency response, facilitating optimal vibration mitigation. The performance of the developed routines is investigated on an existing tied arch railway bridge. Based on previous field measurements, resonant behaviour of several hangers was foun...

Simplified probabilistic non-linear assessment of existing railway bridges

Comparison of Design Standards for Steel Railway Bridges

The popularity of steel bridges is increasing in the modern era because of its unmatchable advantages. Engineers are using various national codes to achieve an optimum design. Some of the Asian countries are using their own codes and also American and other country code provisions to achieve better economy and better standards. In this regard the comparison of design codes is relevant. Comparis...