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浙江大学学报(工学版)
JOURNAL OF ZHEJIANG UNIVERSITY (ENGINEERING SCIENCE)  2017, Vol. 51 Issue (7): 1355-1360    DOI: 10.3785/j.issn.1008-973X.2017.07.012
Civil Engineering     
Shear behavior of leveling layer and asphalt pavement of bridge deck pavement
WAN Chen-guang, SHEN Ai-qin, GUO Yin-chuan
School of Highway, Chang'an University, Xi'an 710064, China
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Abstract  

The concept of interlayer shearing limited boundary was proposed based on the stress characteristics of the interlayer structure calculated by ANSYS in order to improve the problem of interlayer structure diseases of bridge deck pavement. The sensitivity analysis of important influencing factors was conducted, and the relationship between shear strength and interlayer shearing limited boundary was established. Results show that the transverse force coefficient is the key factor of interlayer shearing limited boundary. Increasing the upper asphalt layer or the lower layer thickness can both reduce the occurrence probability of shear failure. The effect of concrete leveling layer thickness on the shear state of bridge deck pavement is very small. The milling interlayer treatment measure can ensure the shear state safety of bridge deck pavement under the typical pavement structure. The interlayer shearing limited boundary can establish a relationship between the mechanical analysis and laboratory test, which can provide reference for the design of interlayer structure of bridge deck pavement.

Received: 05 June 2016      Published: 08 July 2017
CLC:  U443  
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Cite this article:

WAN Chen-guang, SHEN Ai-qin, GUO Yin-chuan. Shear behavior of leveling layer and asphalt pavement of bridge deck pavement. JOURNAL OF ZHEJIANG UNIVERSITY (ENGINEERING SCIENCE), 2017, 51(7): 1355-1360.

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http://www.zjujournals.com/eng/10.3785/j.issn.1008-973X.2017.07.012     OR     http://www.zjujournals.com/eng/Y2017/V51/I7/1355


桥面铺装调平层与沥青面层层间剪切行为

为了改善桥面铺装层间结构病害多发的问题，采用ANSYS软件对调平层与沥青层层间结构的受力进行分析.提出层间极限剪切边界的概念，开展重要影响因素的敏感性分析，与组合结构抗剪强度变化方程建立联系.结果表明：水平力系数而非竖向荷载是层间极限剪切边界的关键影响因素；沥青上、下面层厚度对铺装结构层间剪切状态具有相似的改善效果；调平层厚度对桥面铺装层间剪切状态的影响较小；铣刨措施组合结构抗剪强度回归方程的斜率大于典型铺装结构下极限边界方程的斜率，可以保证调平层与沥青层处于剪切安全状态.层间极限剪切边界可以将铺装结构力学分析与室内试验建立直接联系，为桥面铺装层间结构设计提供参考.

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