DEFORMATION AND FAILURE BEHAVIOR OF OPEN-GRADED FRICTION COURSE AT LOW TEMPERATURES

被引：0
|
作者：
Yu, Baoyang [1 ,2 ]
Sun, Zongguang [1 ]
Qi, Lin [3 ]
机构：
[1] Dalian Maritime Univ, Coll Transportat Engn, Dalian 116026, Peoples R China
[2] Shenyang Jianzhu Univ, Sch Transportat Engn, Shenyang 110168, Peoples R China
[3] Shenyang Urban Construct Inst, Dept Civil Engn, Shenyang 110167, Peoples R China
来源：
CIVIL ENGINEERING JOURNAL-STAVEBNI OBZOR | 2022年 / 31卷 / 02期
关键词：
Open-graded friction course (OGFC); Four-point bending test; Digital surface model (DSM); Strain field; Stress reconstruction; DIGITAL IMAGE CORRELATION; CRACK-GROWTH; ASPHALT;
D O I：
10.14311/CEJ.2022.02.0020
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
To study the deformation and failure behavior of the open-graded friction course (OGFC) before cracking at low temperatures, a four-point bending test of the trabecula was conducted, and the deformation process was monitored by the digital surface model (DSM). The distribution law of the strain field of the trabecular specimens was analyzed. The horizontal strain field gradually changed from a uniform distribution to a strain concentration area with loading. The crack initiation time, crack initiation strain, and deformation period were obtained from the strain curve. The combination of stress reconstruction and DSM makes the stress measurement of the OGFC more authentic.
引用
收藏
页码：260 / 273
页数：14
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