Characteristic of crack spacing for continuously reinforced concrete pavement
Article Text (Baidu Translation)
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摘要: 分析了AASHTO—1993和《力学经验法路面设计指南》 (MEPDG) 中连续配筋混凝土路面(CRCP) 平均裂缝间距模型特点, 现场采集了29个CRCP试验段共计1 171条裂缝间距数据, 对裂缝间距数据进行了归类、统计分析、分布拟合和方差分析。分别确定了AASHTO—1993和MEPDG模型参数, 并利用采集到的裂缝间距数据对2类模型进行了有效性验证。分析结果表明: CRCP裂缝形态可划分为6类; 4参数Dagum分布能更好地拟合CRCP裂缝间距分布; 相同配筋率不同板厚的CRCP平均裂缝间距没有显著差异; AASHTO—1993模型高估了平均裂缝间距, 误差为0.13m;MEPDG模型显著低估了平均裂缝间距, 误差为1.7m。
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关键词:
- 路面工程 /
- 连续配筋混凝土路面 /
- 裂缝间距 /
- 配筋率 /
- 力学经验法路面设计指南
Abstract: The characteristics of average crack spacing models for continuously reinforced concrete pavement (CRCP) in AASHTO—1993 and Mechanistic-Empirical Pavement Design Guide (MEPDG) were analyzed.A total of 1 171crack spacing data were collected from 29CRCP experimental sections.Classifying, statistical analysis, distribution fitting and variance analysis were conducted by using the data.The parameters of AASHTO—1993and MEPDG models were determined respectively, and two models were validated by using the data.Research result shows that cracks can be classified into six types according to the patterns, and CRCP crack spacing distribution is subject to four-parameter Dagum distribution.The differences of CRCP average crack spacings for different slab thicknesses at the same reinforcement ratio are not significant.AASHTO—1993model overestimates average crack spacing with an error of 0.13m, MEPDG model tremendously underestimates average crack spacing with an error of 1.7m. -
表 1 AASHTO—1993平均裂缝间距计算参数
Table 1. Calculation parameters of average crack spacing for AASHTO—1993
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表 5 不同板厚裂缝间距方差分析
Table 5. Variance analysis of crack spacing under different slab thicknesses
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[1] ARA Inc. Guide for mechanistic-empirical design of new and rehabilitated pavement structures[R]. Washington DC: TRB, 2004. [2] ZOLLINGER D G. Investigation of punchout distress in continuously reinforced concrete pavement[D]. Urbana: University of Illinois at Urbana-Champaign, 1989. [3] ZOLLINGER D G, BUCH N, XIN D, et al. Performance of continuously reinforced concrete pavements, volumeⅥ: CRC pavement design, construction, and performance[R]. Washington DC: FHWA, 1999. [4] WON M C, KIM S M, MERRITT D, et al. Horizontal cracking and pavement distress in Portland cement concrete pavement[C]//SPROULE W J, JANSEN S. Designing, Constructing, Maintaining and Financing Today's Airport Projects. Orlando: American Society of Civil Engineers, 2002: 1-10. [5] CHEN D H, LIN H H, SUN R. Field performance evaluations of partial-depth repairs[J]. Construction and Building Materials, 2011, 25 (3): 1369-1378. doi: 10.1016/j.conbuildmat.2010.09.007 [6] KIM S M, WON M C. Horizontal cracking in continuously reinforced concrete pavements[J]. ACI Structural Journal, 2004, 101 (6): 784-791. [7] WON M C, HANKINS K, MCCULLOUGH B F. Mechanistic analysis of continuously reinforced concrete pavements considering material characteristics, variability, and fatigue[R]. Austin: University of Texas, 1991. [8] HUANG Y H. Pavement Analysis and Design[M]. 2nd Edition. Englewood Cliffs: Prentice Hall, 2004. [9] 陈锋锋, 黄晓明, 秦永春. 连续配筋混凝土路面横向裂缝分布模型的研究[J]. 公路交通科技, 2006, 23 (6): 18-21. doi: 10.3969/j.issn.1002-0268.2006.06.005CHEN Feng-feng, HUANG Xiao-ming, QIN Yong-chun. Study on the probability distribution model of continuously reinforced concrete pavement transverse cracks[J]. Journal of Highway and Transportation Research and Development, 2006, 23 (6): 18-21. (in Chinese). doi: 10.3969/j.issn.1002-0268.2006.06.005 [10] 查旭东. 连续配筋混凝土路面横向开裂发展规律[J]. 交通运输工程学报, 2008, 8 (2): 65-68. doi: 10.3321/j.issn:1671-1637.2008.02.014ZHA Xu-dong. Development laws of transverse cracking for continuously reinforced concrete pavement[J]. Journal of Traffic and Transportation Engineering, 2008, 8 (2): 65-68. (in Chinese). doi: 10.3321/j.issn:1671-1637.2008.02.014 [11] 张艳聪, 田波, 申俊敏, 等. 隧道内连续配筋混凝土路面早期裂缝发展研究[J]. 公路, 2012 (3): 99-103. https://www.cnki.com.cn/Article/CJFDTOTAL-GLGL201203025.htmZHANG Yan-cong, TIAN Bo, SHEN Jun-min, et al. Development of early-age cracks of continuously reinforced concrete pavements in road tunnels[J]. Highway, 2012 (3): 99-103. (in Chinese). https://www.cnki.com.cn/Article/CJFDTOTAL-GLGL201203025.htm [12] 张翛, 申俊敏, 刘海. AASHTO—1993连续配筋混凝土路面配筋设计验证研究[J]. 中外公路, 2012, 32 (4): 72-75. doi: 10.3969/j.issn.1671-2579.2012.04.020ZHANG Xiao, SHEN Jun-min, LIU Hai. Validation of AASHTO—1993reinforcement design method for continuously reinforced concrete pavements[J]. Journal of China and Foreign Highway, 2012, 32 (4): 72-75. (in Chinese). doi: 10.3969/j.issn.1671-2579.2012.04.020 [13] KOHLER E, ROESLER J. Crack spacing and crack width investigation from experimental CRCP sections[J]. International Journal of Pavement Engineering, 2006, 7 (4): 331-340. doi: 10.1080/10298430600799000 [14] SELEZNEVA O, DARTER M, ZOLLINGER D, et al. Characterization of transverse cracking spatial variability: use of long-term pavement performance data for continuously reinforced concrete pavement design[J]. Transportation Research Record, 2003 (1849): 147-155. [15] TAYABJI S D, WU C L, PLEI M. Performance of continuously reinforced concrete pavements in the LTPP program[C]//International Society for Concrete Pavements. Proceedings of the 7th International Conference on Concrete Pavements: the Use of Concrete in Developing Long-Lasting Pavement Solutions for the 21st Century. Orlando: International Society for Concrete Pavements, 2001: 685-700. -
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