吉林大学学报(工学版) ›› 2014, Vol. 44 ›› Issue (01): 68-73.doi: 10.13229/j.cnki.jdxbgxb201401012

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Temperature effect on mechanical behaviors of continuously reinforced concrete pavement

ZHONG Chun-ling1,2, LI Na3, MENG Guang-wei2   

  1. 1. Jilin Jianzhu University, Changchun 130118, China;
    2. College of Mechanical Science and Engineering, Jilin University, Changchun 130022, China;
    3. IPPR International (Changchun) High-tech Architecture Design Corporation, Ltd, Changchun 130000, China
  • Received:2012-10-08 Online:2014-01-01 Published:2014-01-01

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Abstract:

In order to accurately calculate the displacement and the stress of any point on the Continuously Reinforced Concrete Pavement (CRCP) under thermal stress, the stiffness equation of the CRCP is established using the contact element theory. This equation is based on the bond-slip relation between reinforced steel bar and concrete, and the subgrade friction effect is taken into consideration. The finite element solution of the stress and displacement along the whole pavement is obtained by considering the combined action of crack interval and beams-on-foundation. Based on the theoretical model, the distribution rule of the stress and displacement of the steel and concrete in the CRCP under thermal stress is analyzed. The numerical simulation results of the whole pavement validate the feasibility of the proposed method.

Key words: road engineering, continuously reinforced concrete pavement (CRCP), contact element, thermal stress

CLC Number: 

  • U441

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