Abstract.Nowadays, vehicle-induced vibration is a subject matter interest in the bridge monitoring field. As compared to other types of excitation such as earthquake and accidental impact, the vehicle-induced vibration is often being less considered during the design process of the bridge. The newly implementedcode also does not emphasize on the vibration check for vehicular bridge and requires the engineers to refer to other "unnamed literature" if they would want to consider vibration check during the design process. However, in recent years there were few reported cases of road users experiencing the excessive vibration when they travelled on certain bridges, therefore raising concern among the bridge designer community the need for vibration check. This paper reviews several conducted researches on vehicle-induced vibration on the real bridge, the methodologies adopted and the outcome from each research. While there are extensive research been conducted on the real bridge, this review is limited to the conducted research into the different categories of bridges. Vehicle-induced vibration usually used for modal testing of the vehicular bridges and is chosen due to the flexibility offered by this method as type of excitation. Most of the researchers focused on the vibration by the vehicle of common bridge while less researches for the integral type. In the context of the integral bridge construction in Malaysia, bored pile is widely being used rather than H-type piles for integral bridges. Hence, there is a need for further exploration on the combination of integral type bridges with the bored pile foundation to assess their dynamic characteristics.

Since 2008, the Public Works Department of Malaysia had adopted the integral abutment bridge concept as one of the initiatives to reduce the maintenance costs of bridges. Although this type of bridge is popular in the developed country such as United States, United Kingdom and Japan, the use of integral bridges in the South East Asia Country is considered relatively new. While most of the researches focussed on theoretical dynamic characteristic of bridge founded with H-piles, this paper presents the theoretical dynamic characteristics of integral bridge abutment with bored piles determined by the FE modal analysis performed by using ABAQUS software. A single-span integral bridge located in Pahang, Malaysia has been selected as the case study. The modal characteristics of the same design of bridge with simply supported bridge yield different values of modal frequency, which are higher. From the FE modelling result, it was found that the integral bridge with the bored piles type of foundation possess lower natural frequencies compared to the simply supported bridge of similar type of foundation.