Design of Substructure Bridge with Different Codes and Analysis Manually and by Using Plaxis Program 3D

This paper discussed the design and analysis of bridge foundation subjected to load of train with two codes, namely AASHTO code and The Chinese National Standard (CNS, 2002). This study focused on the design and analysis of bridge's foundation manually with the two codes and found which code is better. The vertical ultimate bearing capacity of single pile for each code was also discussed. Another analysis on the displacement of the pile by using the three-dimensional Plaxis program of finite elements was conducted. Moreover, strain, stress and active pore water pressure were investigated; all the calculated values in the numerical analysis were conservative. The results indicate that the AASHTO code was economic and safer in the bearing capacity of single pile.