|Table of Contents|

Analysis of influence factor on thermal stress of asphalt pavement structure on Qinghai-Tibet highway(PDF)

长安大学学报（自然科学版）[ISSN:1006-6977/CN:61-1281/TN]

Issue:
2010年04期
Page:
28-33
Research Field:
Publishing date:
2010-08-20

Info

Title:
Analysis of influence factor on thermal stress of asphalt pavement structure on Qinghai-Tibet highway
Author(s):
WANG Lei1;  HU Hao2;  MA Biao2;  CHU Kai2
1. Research Institute of Engineering Design, Chang'an University, Xi'an 710064, Shaanxi, China; 2. Key Laboratory for Special Area Highway Engineering of Ministry of Education, Chang'an University, Xi'an 710064, Shaanxi, China
Keywords:
road engineering;  Qinghai-Tibet highway;  asphalt pavement;  thermal stress;  influence factor
PACS:
U416.217
DOI:
-
Abstract:
Aiming at the climate feature of low temperature and large temperature difference on Qinghai-Tibet highway, this paper analyzed the influence of pavement thickness, elastic module, linear expansion coefficient and temperature on the thermal stress based on the study of temperature field by using ANSYS finite element analysis software. The results show that, with the increasing of pavement thickness, the thermal stress at the bottom of pavement has the largest changes. The influence of pavement elastic module to the thermal stress in asphalt pavement may be great, but only in the definite deep. The thermal stress in asphalt pavement decreases with the decreasing of pavement linear expansion coefficient, the lower the temperature, the larger the influence is. The thermal stress in asphalt pavement increases when the temperature is lower and the temperature difference is larger. 3 tabs, 12 figs, 13 refs.

References:

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Last Update: 2010-08-20