Application of semi-analytical finite element method to analyze the bearing capacity of asphalt pavements under moving loads  

作　　者：Pengfei LIU Dawei WANG Frederic OTTO Markus OESER 

机构地区：[1]Institute of Highway Engineering, RWTH Aachen University, Aachen D52074, Germany

出　　处：《Frontiers of Structural and Civil Engineering》2018年第2期215-221,共7页结构与土木工程前沿（英文版）

摘　　要：To facilitate long term infrastructure asset management systems, it is necessary to determine the bearing capacity of pavements. Currently it is common to conduct such measurements in a stationary manner, however the evaluation with stationary loading does not correspond to reality a tendency towards continuous and high speed measurements in recent years can be observed. The computational program SAFEM was developed with the objective of evaluating the dynamic response of asphalt under moving loads and is based on a semi-analytic element method. In this research project SAFEM is compared to commercial finite element software ABAQUS and field measurements to verify the computational accuracy. The computational accuracy of SAFEM was found to be high enough to be viable whilst boasting a computational time far shorter than ABAQUS. Thus, SAFEM appears to be a feasible approach to determine the dynamic response of pavements under dynamic loads and is a useful tool for infrastructure administrations to analyze the pavement bearing capacity.To facilitate long term infrastructure asset management systems, it is necessary to determine the bearing capacity of pavements. Currently it is common to conduct such measurements in a stationary manner, however the evaluation with stationary loading does not correspond to reality a tendency towards continuous and high speed measurements in recent years can be observed. The computational program SAFEM was developed with the objective of evaluating the dynamic response of asphalt under moving loads and is based on a semi-analytic element method. In this research project SAFEM is compared to commercial finite element software ABAQUS and field measurements to verify the computational accuracy. The computational accuracy of SAFEM was found to be high enough to be viable whilst boasting a computational time far shorter than ABAQUS. Thus, SAFEM appears to be a feasible approach to determine the dynamic response of pavements under dynamic loads and is a useful tool for infrastructure administrations to analyze the pavement bearing capacity.

关 键 词：semi-analytical finite element method bearing capacity asphalt pavements moving loads dynamic response 

分 类 号：TP391.7[自动化与计算机技术—计算机应用技术] TM561.506[自动化与计算机技术—计算机科学与技术]