考虑界面初始黏结缺陷的CRTS Ⅱ型板式无砟轨道温度变形

粟淼; 朱琦治; 戴公连; 彭晖

doi:10.19818/j.cnki.1671-1637.2020.05.005

考虑界面初始黏结缺陷的CRTS Ⅱ型板式无砟轨道温度变形

doi: 10.19818/j.cnki.1671-1637.2020.05.005

粟淼^{1, 2,},
朱琦治¹,
戴公连³,
彭晖^{1, 2}

1.
长沙理工大学土木工程学院, 湖南长沙 410114
2.
长沙理工大学南方地区桥梁长期性能提升技术国家地方联合工程实验室, 湖南长沙 410114
3.
中南大学土木工程学院, 湖南长沙 410075

基金项目:

国家自然科学基金项目 51808056

南方地区桥梁长期性能提升技术国家地方联合工程实验室开放基金项目 18KB02

详细信息

作者简介:
粟淼(1989-), 男, 湖南长沙人, 长沙理工大学讲师, 工学博士, 从事桥梁与轨道相互作用研究

中图分类号: U213.2
计量
- 文章访问数: 636
- HTML全文浏览量: 142
- PDF下载量: 2255
- 被引次数: 0
出版历程
- 收稿日期: 2020-05-08
- 刊出日期: 2020-10-25

Temperature deformation of CRTSⅡslab ballastless track considering interfacial initial bond defects

SU Miao^{1, 2
,},
ZHU Qi-zhi¹,
DAI Gong-lian³,
PENG Hui^{1, 2}

1.
School of Civil Engineering, Changsha University of Science and Technology, Changsha 410114
2.
National-Local Joint Laboratory of Engineering Technology for Long-Term Performance Enhancement of Bridges in Southern District, Changsha University of Science and Technology, Changsha 410114, Hunan, China
3.
School of Civil Engineering, Central South University, Changsha 410075, Hunan, China

Funds:

National Natural Science Foundation of China 51808056

Open Fund of National-Local Joint Laboratory of Engineering Technology for Long-Term Performance Enhancement of Bridges in Southern District 18KB02

More Information

Author Bio:
SU Miao(1989-), male, lecturer, PhD, sumiao@csust.edu.cn

摘要

摘要: 针对中国高速铁路CRTSⅡ型板式无砟轨道界面初始黏结缺陷导致轨道结构温度变形进一步增大的现象, 基于电荷耦合器件(CCD)工业相机与计算机图片处理技术, 建立了板式无砟轨道界面空隙率试验检测系统, 测试了3块CRTSⅡ型板式无砟轨道板与水泥沥青(CA)砂浆界面的初始空隙率; 在有限元模型中以界面空隙率定量表征了界面的黏结状态, 即根据界面空隙率检测结果, 考虑界面存在一定量值的初始空隙率, 并假设这些空隙均匀分布在整个界面上, 系统分析了界面初始黏结缺陷对板式无砟轨道温度变形的影响。研究结果表明: 3块轨道板样本界面的初始平均空隙率为22.3%, 界面四周的初始黏结状态明显差于轨道板界面中心; 在正、负竖向温度梯度作用下, CRTSⅡ型板式无砟轨道分别呈现中心上拱和四周翘曲的温度变形模式; 正温度梯度作用下轨道板最大温度变形与不考虑界面初始黏结缺陷相比增大了7.8%~10.1%, 且随着界面初始空隙率的进一步增大, 轨道板最大上拱温度变形呈线性增大趋势; 负温度梯度作用下, 界面空隙率的增大对轨道板温度变形的影响不大; 在分析CRTSⅡ型板式无砟轨道温度变形时应适当考虑轨道板与CA砂浆的界面初始黏结缺陷, 研究结果可为分析CRTSⅡ型轨道板上拱温度变形机理提供参考。
- 高速铁路 /
- CRTSⅡ型无砟轨道 /
- 温度变形 /
- 界面初始黏结缺陷 /
- 图像处理 /
- 有限元分析
Abstract: Aiming at the phenomenon that the temperature deformation of China railway track system(CRTS) Ⅱ slab ballastless track in Chinese high-speed railways increases with the interfacial initial bond defects, an detection experimental system for the interfacial porosity of slab ballastless track was established based on the charge coupled device(CCD) industrial camera and the computer image processing technology. The initial porosities of interface between the track slab and the cement asphalt(CA) mortar from three CRTS Ⅱ ballastless track specimens were detected. In the finite element model, the initial porosity was used to quantitatively characterize the interfacial bond states. Considering a certain amount of initial porosity at the interface, according to the test results of interface porosity and assuming these voids evenly distributing on the entire interface, the effects of interfacial initial bond defects on the temperature deformation of slab ballastless track were systematically analyzed. Research result shows that the average interfacial porosity of the three CRTS Ⅱ ballastless track slabs is 22.3%, and the bond state around the bonding interface is significantly worse than that at the central positions of track slab interface. Under the actions of positive and negative vertical temperature gradients, the CRTS Ⅱ ballastless track presents the temperature deformation modes of slab center arch and slab edges warp, respectively. Compared with the track slab without considering the interfacial initial porosity, the maximum temperature deformation of track slab increases by 7.8%-10.1% under the action of positive temperature gradient, and with the further increase of interfacial initial porosity, the maximum arch temperature deformation of track slab increases linearly. Under the action of negative temperature gradient, the increase of interfacial porosity has little effect on the temperature deformation of track slab. The interfacial initial porosity defects between the track slab and the CA mortar should be considered properly when analyzing the temperature deformation of CRTS Ⅱ slab ballastless track. The research results can provide references for analyzing the temperature deformation mechanism of CRTS Ⅱ track slab.
- high-speed railway /
- CRTS Ⅱ ballastless track /
- temperature deformation /
- interfacial initial bond defect /
- image processing /
- finite element analysis

HTML全文

图 1 界面空隙率检测试验装置

Figure 1. Detection experimental device of interface porosity

下载: 全尺寸图片幻灯片

图 2 采样位置

Figure 2. Sampling positions

下载: 全尺寸图片幻灯片

图 3 典型图片处理过程示意

Figure 3. Schematic of processing process of typical images

下载: 全尺寸图片幻灯片

图 4 界面空隙率分析结果

Figure 4. Analysis results of interfacial porosity

下载: 全尺寸图片幻灯片

图 5 有限元模型

Figure 5. Finite element model

下载: 全尺寸图片幻灯片

图 6 界面竖向黏结强度本构模型

Figure 6. Constitutive model of interfacial vertical bond strength

下载: 全尺寸图片幻灯片

图 7 有限元模型界面空隙率实现流程

Figure 7. Implementation flow of interfacial porosity for finite element model

下载: 全尺寸图片幻灯片

图 8 轨道板温度变形

Figure 8. Temperature deformations of track slab

下载: 全尺寸图片幻灯片

图 9 正温度梯度作用下轨道板温度变形比较

Figure 9. Temperature deformation comparison of track slab under positive temperature gradient

下载: 全尺寸图片幻灯片

图 10 负温度梯度作用下轨道板温度变形比较

Figure 10. Temperature deformation comparison of track slab under negative temperature gradient

下载: 全尺寸图片幻灯片

图 11 界面空隙率对轨道板温度变形影响

Figure 11. Influence of interfacial porosity on temperature deformation of track slab

下载: 全尺寸图片幻灯片

参考文献(34)

[1]	LIU Xue-yi, ZHAO Ping-rui, DAI Feng. Advances in design theories of high-speed railway ballastless tracks[J]. Journal of Modern Transportation, 2011, 19(3): 154-162. doi: 10.1007/BF03325753
[2]	NTOTSIOS E, THOMPSON D J, HUSSEIN M F M. A comparison of ground vibration due to ballasted and slab tracks[J]. Transportation Geotechnics, 2019, 21: 100256. doi: 10.1016/j.trgeo.2019.100256
[3]	ZHANG Yan-rong, WU Kai, GAO Liang, et al. Study on the interlayer debonding and its effects on the mechanical properties of CRTS Ⅱ slab track based on viscoelastic theory[J]. Construction and Building Materials, 2019, 224: 387-407. doi: 10.1016/j.conbuildmat.2019.07.089
[4]	CHEN Zhao-wei. Evaluation of longitudinal connected track under combined action of running train and long-term bridge deformation[J]. Journal of Vibration and Control, 2019, DOI: 10.1177/1077546319889855.
[5]	WANG Qi-ang, NI Yi-qing. Measurement and forecasting of high-speed rail track slab deformation under uncertain SHM data using variational heteroscedastic gaussian process[J]. Sensors, 2019, 19(15): 3311. doi: 10.3390/s19153311
[6]	SU Miao, DAI Gong-lian, MARX S, et al. A brief review of developments and challenges for high-speed rail bridges in China and Germany[J]. Structural Engineering International, 2019, 29(1): 160-166. doi: 10.1080/10168664.2018.1456892
[7]	李东昇, 牛斌, 胡所亭, 等. 长大温度跨混凝土桥上CRTS Ⅱ型板式无砟轨道的力学性能研究[J]. 中国铁道科学, 2016, 37(3): 22-29. doi: 10.3969/j.issn.1001-4632.2016.03.004 LI Dong-sheng, NIU Bin, HU Suo-ting, et al. Mechanical properties of CRTS Ⅱ slab ballastless track on long temperature span concrete bridge[J]. China Railway Science, 2016, 37(3): 22-29. (in Chinese). doi: 10.3969/j.issn.1001-4632.2016.03.004
[8]	WANG Ping, XU Hao, CHEN Rong. Effect of cement asphalt mortar debonding on dynamic properties of CRTS Ⅱ slab ballastless track[J]. Advances in Materials Science and Engineering, 2014(2): 1-8.
[9]	ZHU Sheng-yang, CAI Cheng-biao. Interface damage and its effect on vibrations of slab track under temperature and vehicle dynamic loads[J]. International Journal of Non-Linear Mechanics, 2014, 58: 222-232. doi: 10.1016/j.ijnonlinmec.2013.10.004
[10]	YAN Bin, LIU Shi, PU Hao, et al. Elastic-plastic seismic response of CRTS Ⅱ slab ballastless track system on high-speed railway bridges[J]. Science China (Technological Sciences), 2017, 60(6): 865-871. doi: 10.1007/s11431-016-0222-6
[11]	YANG Xin-wen, SHU Yao, ZHOU Shun-hua. An explicit periodic nonlinear model for evaluating dynamic response of damaged slab track involving material nonlinearity of damage in high speed railway[J]. Construction and Building Materials, 2018, 168: 606-621. doi: 10.1016/j.conbuildmat.2018.02.147
[12]	张向民, 赵磊. 高速铁路CRTS Ⅱ型板式无砟轨道稳定性理论研究[J]. 铁道工程学报, 2018, 35(1): 49-55. doi: 10.3969/j.issn.1006-2106.2018.01.009 ZHANG Xiang-min, ZHAO Lei. Research on the stability theory of CRTS Ⅱ slab ballastless track on high-speed railway[J]. Journal of Railway Engineering Society, 2018, 35(1): 49-55. (in Chinese). doi: 10.3969/j.issn.1006-2106.2018.01.009
[13]	CHEN Zui, XIAO Jie-ling, LIU Xiao-kai, et al. Effects of initial up-warp deformation on the stability of the CRTS Ⅱ slab track at high temperatures[J]. Journal of Zhejiang University—Science A, 2018, 19(12): 939-950. doi: 10.1631/jzus.A1800162
[14]	赵国堂, 高亮, 赵磊, 等. CRTS Ⅱ型板式无砟轨道板下离缝动力影响分析及运营评估[J]. 铁道学报, 2017, 39(1): 1-10. https://www.cnki.com.cn/Article/CJFDTOTAL-TDXB201701001.htm ZHAO Guo-tang, GAO Liang, ZHAO Lei, et al. Analysis of dynamic effect of gap under CRTS Ⅱ track slab and operation evaluation[J]. Journal of the China Railway Society, 2017, 39(1): 1-10. (in Chinese). https://www.cnki.com.cn/Article/CJFDTOTAL-TDXB201701001.htm
[15]	韩志刚, 孙立. CRTS Ⅱ型板式轨道轨道板温度测量与变形分析[J]. 铁道标准设计, 2011(10): 41-44. https://www.cnki.com.cn/Article/CJFDTOTAL-TDBS201110014.htm HAN Zhi-gang, SUN Li. Temperature measurement and deformation analysis for CRTSⅡ ballastless track slabs[J]. Railway Standard Design, 2011(10): 41-44. (in Chinese). https://www.cnki.com.cn/Article/CJFDTOTAL-TDBS201110014.htm
[16]	戴公连, 苏海霆, 刘文硕, 等. 高温季节桥上纵连板式无砟轨道的温度分布[J]. 中南大学学报(自然科学版), 2017, 48(4): 1073-1080. https://www.cnki.com.cn/Article/CJFDTOTAL-ZNGD201704030.htm DAI Gong-lian, SU Hai-ting, LIU Wen-shuo, et al. Temperature distribution of longitudinally connected ballastless track on bridge in summer[J]. Journal of Central South University (Science and Technology), 2017, 48(4): 1073-1080. (in Chinese). https://www.cnki.com.cn/Article/CJFDTOTAL-ZNGD201704030.htm
[17]	戴公连, 杨凌皓, 朱俊樸, 等. 桥上CRTS Ⅱ型板式无砟轨道均匀温度研究[J]. 湖南大学学报(自然科学版), 2017, 44(7): 136-142. https://www.cnki.com.cn/Article/CJFDTOTAL-HNDX201707017.htm DAI Gong-lian, YANG Ling-hao, ZHU Jun-pu, et al. Research on uniform temperature of CRTS Ⅱ slab-type ballastless track on bridge[J]. Journal of Hunan University (Natural Sciences), 2017, 44(7): 136-142. (in Chinese). https://www.cnki.com.cn/Article/CJFDTOTAL-HNDX201707017.htm
[18]	MACKIEWICZ P. Thermal stress analysis of jointed plane in concrete pavements[J]. Applied Thermal Engineering, 2014, 73(1): 1169-1176. doi: 10.1016/j.applthermaleng.2014.09.006
[19]	CHEN Dong, MAHADEVAN S. Cracking analysis of plain concrete under coupled heat transfer and moisture transport processes[J]. Journal of Structural Engineering, 2007, 133(3): 400-410. doi: 10.1061/(ASCE)0733-9445(2007)133:3(400)
[20]	TIAN Y, ZHANG N, XIA H. Temperature effect on service performance of high-speed railway concrete bridges[J]. Advances in Structural Engineering, 2017, 20(6): 1-19.
[21]	ZHANG Nan, ZHOU Shuang, XIA He, et al. Evaluation of vehicle-track-bridge interacted system for the continuous CRTS Ⅱ non-ballast track slab[J]. Science China (Technological Sciences), 2014, 57(10): 1895-1901.
[22]	赵虎. 高速铁路CRTS Ⅱ型板式无砟轨道高温变形及损伤机理研究[J]. 铁道标准设计, 2017, 61(9): 46-50. https://www.cnki.com.cn/Article/CJFDTOTAL-TDBS201709012.htm ZHAO Hu. High temperature deformation and damage mechanism of CRTS Ⅱ ballastless slab track on high speed railway[J]. Railway Standard Design, 2017, 61(9): 46-50. (in Chinese). https://www.cnki.com.cn/Article/CJFDTOTAL-TDBS201709012.htm
[23]	SONG Xiao-lin, ZHAO Chun-fa, ZHU Xiao-jia. Temperature-induced deformation of CRTS Ⅱ slab track and its effect on track dynamical properties[J]. Science China (Technological Sciences), 2014, 57(10): 1917-1924.
[24]	杨静静. CRTS Ⅱ型轨道板温度变形及其对车-线-桥系统动力响应的影响[D]. 北京: 北京交通大学, 2017. YANG Jing-jing. Temperature deformation of CRTS Ⅱ track slab and its impact on dynamic responses of vehicle-track-bridge system[D]. Beijing: Beijing Jiaotong University, 2017. (in Chinese).
[25]	戴公连, 粟淼. 剪切荷载下板式无砟轨道界面黏结破坏机理[J]. 华中科技大学学报(自然科学版), 2016, 44(1): 16-21. https://www.cnki.com.cn/Article/CJFDTOTAL-HZLG201601004.htm DAI Gong-lian, SU Miao. Mechanism of interfacial bond failure for slab ballastless track under shear loading[J]. Journal of Huazhong University of Science and Technology (Natural Science Edition), 2016, 44(1): 16-21. (in Chinese). https://www.cnki.com.cn/Article/CJFDTOTAL-HZLG201601004.htm
[26]	SU Cheng-guang, LIU Dan, DING Chen-xu, et al. Experimental study on bond performances of track slab and mortar based on DIC technology[J]. KSCE Journal of Civil Engineering, 2018, 22: 3546-3555.
[27]	张鹏飞, 连西妮, 桂昊, 等. 桥墩温度梯度对桥上CRTS Ⅱ型板式无砟轨道纵向力的影响[J]. 交通运输工程学报, 2020, 20(4): 80-90. doi: 10.19818/j.cnki.1671-1637.2020.04.006 ZHANG Peng-fei, LIAN Xi-ni, GUI Hao, et al. Effect of pier temperature gradient on longitudinal force of CRTS Ⅱ slab ballastless track on bridge[J]. Journal of Traffic and Transportation Engineering, 2020, 20(4): 80-90. (in Chinese). doi: 10.19818/j.cnki.1671-1637.2020.04.006
[28]	张鹏飞, 桂昊, 雷晓燕, 等. 列车荷载下桥上CRTSⅢ型板式无砟轨道挠曲力与位移[J]. 交通运输工程学报, 2018, 18(6): 61-72. http://transport.chd.edu.cn/article/id/201806007 ZHANG Peng-fei, GUI Hao, LEI Xiao-yan, et al. Deflection force and displacement of CRTS Ⅲ slab track on bridge under train load[J]. Journal of Traffic and Transportation Engineering, 2018, 18(6): 61-72. (in Chinese). http://transport.chd.edu.cn/article/id/201806007
[29]	钟阳龙, 高亮, 王璞, 等. 温度荷载下CRTS Ⅱ型轨道板与CA砂浆界面剪切破坏机理[J]. 工程力学, 2018, 35(2): 230-238. https://www.cnki.com.cn/Article/CJFDTOTAL-GCLX201802028.htm ZHONG Yang-long, GAO Liang, WANG Pu, et al. Mechanism of interfacial shear failure between CRTS Ⅱ slab and CA mortar under temperature loading[J]. Engineering Mechanics, 2018, 35(2): 230-238. (in Chinese). https://www.cnki.com.cn/Article/CJFDTOTAL-GCLX201802028.htm
[30]	杨荣山, 汪杰, 姜恒昌, 等. CRTSⅡ型板式轨道底座板后浇带脱空对轨道结构与行车的影响[J]. 交通运输工程学报, 2019, 19(3): 71-78. http://transport.chd.edu.cn/article/id/201903008 YANG Rong-shan, WANG Jie, JIANG Heng-chang, et al. Effects of post-pouring belt void of base slab on track structure and train operation of CRTS Ⅱ slab track[J]. Journal of Traffic and Transportation Engineering, 2019, 19(3): 71-78. (in Chinese). http://transport.chd.edu.cn/article/id/201903008
[31]	向俊, 林士财, 余翠英, 等. 路基不均匀沉降下无砟轨道受力与变形传递规律及其影响[J]. 交通运输工程学报, 2019, 19(2): 69-81. http://transport.chd.edu.cn/article/id/201902007 XIANG Jun, LIN Shi-cai, YU Cui-ying, et al. Transfer rules and effect of stress and deformation of ballastless track under uneven subgrade settlement[J]. Journal of Traffic and Transportation Engineering, 2019, 19(2): 69-81. (in Chinese). http://transport.chd.edu.cn/article/id/201902007
[32]	LIU P F, GU Z P, PENG X Q. A nonlinear cohesive/friction coupled model for shear induced delamination of adhesive composite joint[J]. International Journal of Fracture, 2016, 199(2): 135-156.
[33]	DAI Gong-lian, SU Miao. Full-scale field experimental investigation on the interfacial shear capacity of continuous slab track structure[J]. Archives of Civil and Mechanical Engineering, 2016, 16(3): 485-493.
[34]	SU Miao, DAI Gong-lian, PENG Hui. Bond-slip constitutive model of concrete to cement-asphalt mortar interface for slab track structure[J]. Structural Engineering and Mechanics, 2020, 74(5): 589-600.