열차풍압에 의한 철도궤도용 방음벽 고정 클램프의 거동에 관한 연구

초록

Recently, the bridge section increases in the high-speed railway, the regional railway and urban railway. The noise being generated in the bridge section causes a complaint to the nearby residents and residential area Accordingly, soundproof wall for noise prevention has been installed on the viaduct structure. The wall’s height has been increased and its type has been varied as high-rise buildings and the development of the metropolitan area has been emerged. Existing soundproof wall has been deteriorated along the existing railway. The loosened bolt and nut in the soundproof panel’s fixing clamp impedes safe operation due to falling columns and soundproof panel caused by the vehicle producing wind pressure, typhoon, and etc. Therefore, in this study, improvement of existing fixing clamps has been studied through the dynamic analysis of fixing clamp’s movement due to the vehicle producing wind pressure. Also, various type of fixing clamp has been developed to prevent loosening of the nut and bolt and their structural performance and function have been proved analytically and experimentally.