NUMERICAL INVESTIGATION OF GLASS-FIBER REINFORCED PLASTIC MORTAR PIPES CULVERT RESPONSE TO HEAVY TRUCK LOADS


 The main objective of this paper is to investigate the dynamic performance and behaviour glass-fiber reinforced plastic (GRP) mortar pipes under heavy truck loads. According field conditions, a finite element analysis (FEDA) model GRP pipe culverts was established. Modal vibration system carried out, natural frequencies with 26.6Hz,32Hz,35.7Hz corresponding mode shapes were obtained. On basis modal analysis, response vehicle loads simulated through random vibration. Based on measured velocity time histories, responses analyzed. results show that spectral value pipeline load decreases increase buried depth. When depth greater than 0.8m, influence ground cannot be taken into consideration. It can provide for design culverts, especially loads.