THE NONLINEAR BACKCALCULATION FOR LTPP TEST SECTION

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概要

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• Most backcalculation programs are based on the linear-elasticity assumption. Laboratory results have shown that pavement materials possess a nonlinear stress-strain relationship. The purpose of this study is to develop a nonlinear backcalculation program which will be used to analyze the test pavement sections in the Long-Term Pavement Performance (LTPP) database in the United States. The selection criterion for the test pavement sections is that there are strong nonlinear behavior for the drop weight and peak deflection relationship for the test pavement section. The Falling Weight Deflectometer (FWD) test results from these test sections will be compared with the predicted results from linear and nonlinear backcalculation analysis. The backcalculated material properties will also be used to predict the deflections of the FWD test data for different drop weights. Finally, the backcalculation results will be used for the structural analysis, and the results from the linear and nonlinear analysis are different.

著者

• LIU Ming-Lou

  Dept. of Civil & Ecological Engineering I-Shou University

• CHUANG Jui-Chang

  Dept. of Civil & Ecological Engineering, I-Shou University

• LIAO Hsiao-Yuan

  Dept. of Civil Engineering, National Central University

関連論文

• Reliability-Based Pavement Analysis Using Stochastic Finite Element
• THE NONLINEAR BACKCALCULATION FOR LTPP TEST SECTION
• THE STOCHASTIC FINITE ELEMENT FOR PAVEMENT ANALYSIS
• DYNAMIC RESPONSE OF PAVEMENT WITH ABSORBING ELEMENT

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