Improvement of Acoustic Properties and Dynamic Characteristics of Temporary Bridge Structures

Abstract

The article deals with dynamic and acoustic characteristics of the temporary steel bridge structures. Their construction is usually associated with the need of temporary replacement of the permanent bridge structures which were damaged or completely destroyed due to natural disasters or by human forces during the military operations or terrorist attacks. If some area is affected such this disaster, it usually gets into the difficult economic situation and it is not possible to recover the permanent construction in real time. In many cases there arises a situation that the temporary structure performs its function for years or permanently. In view of this fact, it is necessary to solve a number of defects, especially with regard to the long-term dynamic stresses in the structure and to excessive noise, which arises due to the traffic, because this structure is not primarily designed for it.