长寿命沥青路面结构力学响应的三维有限元分析

李峰，张宏超，孙立军

(同济大学 道路与交通工程教育部重点实验室)

摘要: 长寿命沥青路面是国际道路工程届提出的新技术。本文运用三维有限元程序对4种路面结构进行对比应力分析，分析了结构组合变化对层底弯拉应变的影响。为设计长寿命路面结构提供了必要的理论基础。

关键词：长寿命沥青路面；力学响应；三维有限元；层底弯拉应变

The Mechanics Response Analysis of Perpetual Pavements with

3D Finite Element Method………………………...LI Feng,ZHANG Hong-chao, SUN Li-jun

Abstract: The perpetual pavement was an advanced technology represented in engineering field. The stress states of four pavement structures were calculated by three-dimension finite element method to analyze the influence of different structural combinations on the tensile strain at the bottom. This is also developed as the theoretical foundation for the design of perpetual pavements.

Key words: perpetual pavements; mechanics response; 3D finite element method; the tensile strain at the bottom