Dynamic response of pavement considering axle combination and contact condition between layers
SHAN Jing-song1;HUANG Xiao-ming2;Li Songhui1
1.College of Civil Engineering and Architecture ,Shandong University of Science and Technology , Qingdao 266510; 2.School of Transportation ,Southeast University ,Nanjing 210096
Abstract：The responses of stress in pavement structure under moving distributed load are got by three dimensional dynamic FEM and explicit integral. Vertical impulsive loads and moving loads are put on road model, respectively and the difference is got. The result shows that vertical impulsive loads can reflect the instantaneous property of traffic loading, but distinct error till exists compared with actual moving loads. Inner stress in surface layer and tensile stress at the bottom of base are analyzed mainly considering several factors,such as contact condition between layers and axle combination.
2009, Vol. 28 
