Dynamic Analysis of Highway Structures to Blast Excitation

"With the innovation of computational equipment, an exact analysis of structures as dynamic systems is more approachable. Accordingly, the dynamic system can be established, if the natural characteristics such as the natural frequency and the damping fraction of a system are known. Through dynamic analysis, the response of a structure can be predicted from ground vibration, and it becomes possible to forecast the damage potential to the structure with reasonable accuracy. Most vibration will appear as single harmonic or superposition of waves that consists of several harmonics with different frequencies. A vibration signal can be expressed, therefore, as the function of sine waves. If a signal is periodic, the particular harmonic with the smallest frequency will befundamental and frequency of the others will be multiples of the fundamental frequency."