[1] Chen Xiaobing, Zhao Ronglong, Tong Jinhu, Huang Xiaoming, et al. Critical load position for cavities beneath CRCP slabunder vehicle loading [J]. Journal of Southeast University (English Edition), 2016, 32 (1): 78-84. [doi:10.3969/j.issn.1003-7985.2016.01.014]

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Critical load position for cavities beneath CRCP slabunder vehicle loading()

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Journal of Southeast University (English Edition)[ISSN:1003-7985/CN:32-1325/N]

Volumn:

32

Issue:

2016 1

Page:

78-84

Research Field:

Traffic and Transportation Engineering

Publishing date:

2016-03-20

Info

Title:

Critical load position for cavities beneath CRCP slabunder vehicle loading

Author(s):

Chen Xiaobing;  Zhao Ronglong;  Tong Jinhu;  Huang Xiaoming;  Luo Ruilin

School of Transportation, Southeast University, Nanjing 210096, China

Keywords:

vehicle loading;  cavity;  continuously reinforced concrete pavement(CRCP);  critical load position;  finite element method(FEM)

PACS:

U416.216

DOI:

10.3969/j.issn.1003-7985.2016.01.014

Abstract:

In order to study the critical load position that causes cavities beneath the continuously reinforced concrete pavement(CRCP)slab under vehicle loading, the elliptical load is translated into the square load based on the equivalence principle. The CRCP slab is analyzed to determine the cavity position beneath the slab under vehicle loading. The influences of cavity size on the CRCP slab’s stress and vertical displacement are investigated. The study results show that the formation of the cavity is unavoidable under traffic loading, and the cavity is located at the edge of the longitudinal crack and the slab corner. The cavity size exerts an obvious influence on the largest horizontal tensile stress and vertical displacement. The slab corner is the critical load position of the CRCP slab. The results can be used to assist the design of CRCP in avoiding cavities beneath slabs subject to vehicle loading.

References:

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Memo

Memo:

Biography: Chen Xiaobing(1973—), male, doctor, associate professor, xbchen@seu.edu.cn.
Foundation item: The Science Foundation of Ministry of Transport of the People’s Republic of China(No.200731822301-7).
Citation: Chen Xiaobing, Zhao Ronglong, Tong Jinhu, et al. Critical load position for cavities beneath CRCP slab under vehicle loading[J].Journal of Southeast University(English Edition), 2016, 32(1):78-84. DOI:10.3969/j.issn.1003-7985.2016.01.014.

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