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Corresponding Author

Hashad, Ahmed

Subject Area

Civil and Environmental Engineering

Article Type

Original Study

Abstract

This research studies the differences between the real measured Dynamic Amplification Factor (DAF) and the calculated one according to the new Egyptian Standard. One of the arched steel railway bridges in Egypt was subjected to loading capacity evaluation process, during this process a study to evaluate the (DAF) was carried out. The actual DAF was determined experimentally by using dynamic loading tests that were carried out under the bridge normal operation conditions. The results of the dynamic loading tests were also validated by using numerical models for the bridge and the train loads. The numerical model was calibrated also with the results of the measured bridge dynamic characteristics. The results obtained from the experiments and from the numerical model were compared to the DAF obtained from the Egyptian standards. The research results indicated that, there is a considerable difference between the two actual values and the Egyptian standard calculated one.

Keywords

Dynamic Testing; Arched Steel Bridge; Impact Factor; Dynamic Response

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