Theoretical Calculation of Crack Performance in Continuous Track Slab in Severe Cold Area

WEI Youxin; YANG Bin; ZHAO Yanxi; CAI Xiaopei; HUANG Cheng

doi:10.3969/j.issn.0258-2724.20180557

Volume 54 Issue 6

Nov. 2019

Turn off MathJax

Article Contents

Abstract

References

Journal of Southwest Jiaotong University > 2019 > 54(6): 1219-1226.

WEI Youxin, YANG Bin, ZHAO Yanxi, CAI Xiaopei, HUANG Cheng. Theoretical Calculation of Crack Performance in Continuous Track Slab in Severe Cold Area[J]. Journal of Southwest Jiaotong University, 2019, 54(6): 1219-1226. doi: 10.3969/j.issn.0258-2724.20180557

Citation:

WEI Youxin, YANG Bin, ZHAO Yanxi, CAI Xiaopei, HUANG Cheng. Theoretical Calculation of Crack Performance in Continuous Track Slab in Severe Cold Area[J]. Journal of Southwest Jiaotong University, 2019, 54(6): 1219-1226. doi: 10.3969/j.issn.0258-2724.20180557

Citation:

PDF( 1393 KB)

Theoretical Calculation of Crack Performance in Continuous Track Slab in Severe Cold Area

doi: 10.3969/j.issn.0258-2724.20180557

Received Date: 06 Jul 2018
Rev Recd Date: 21 Nov 2018

Available Online: 10 Jul 2019

Publish Date: 01 Dec 2019

Abstract

Abstract

In order to study the crack performance and its influencing factors in the continuous track slab in severe cold area, previous assumptions and mechanical models for the calculation of cracks in continuous track slab were modified according to their actual working states in severe cold area. Based on theoretical derivation and experimental verification, a methodology for calculating the crack performance in continuous track slab in different working conditions was proposed; the cracking law of the continuous track slab and the development trend of cracks with temperature drop were summarized. Results show that the crack performance in continuous track slab is closely related to the temperature drop amplitude and the spacing between adjacent cracks. The continuous track slab undergoes a primary cracking phase in a concentrated manner at a temperature drop of about 5 ℃. As the temperature drops further, the fixed zone length of the track slab will decrease to 0, and a secondary cracking phase occurs to the track slab in a single and sporadic manner; what’s more, the smaller the spacing between adjacent cracks is, the larger the temperature drop magnitude to initiate the secondary cracking of the track slab is. Tests show that when the spacing between adjacent cracks is smaller than 3.25 m, the track slab will not cause the secondary cracking at a temperature drop less than 37 ℃. The generation of a single crack only affects the mechanical properties of the track structure in the range of its left and right sliding zones, and if the sliding areas of the new and old cracks partially overlap, the new crack will cause a sudden decrease in the reinforcement stress and crack width amplitude of the adjacent existing cracks.
- severe cold area,
- continuous track slab,
- crack width,
- reinforcement stress,
- theoretical derivation

FullText(HTML)

References(12)

References

刘学毅, 赵坪锐, 王平, 等. 客运专线无砟轨道设计理论与方法[M]. 成都: 西南交通大学出版社, 2010: 161-181

DB Systemtecknik-Oberbautecknik. Requirements catalog for the construction of the slab track: AKFF4-2002[S]. Frankfurt: DB Netz AG NST Produktmanagement Technik, 2002

LAY S. Durchgehend bewehrte betondecke[J]. European Railway Review, 2005, 11(2): 45-52.

张勇. 路基上双块式无砟轨道空间力学及裂缝特性研究[D]. 长沙: 中南大学, 2011

吴斌,张勇,曾志平,等. 温度及收缩荷载下路基上双块式无砟轨道力学及裂缝特性研究[J]. 铁道科学与工程学报,2011,8(1): 19-23. doi: 10.3969/j.issn.1672-7029.2011.01.004

WU Bin, ZHANG Yong, ZENG Zhiping, et al. Study on mechanics and crack behavior of twin-block Ballastless track on subgrade under the temperature and shrinkage load[J]. Journal of Railway Science and Engineering, 2011, 8(1): 19-23. doi: 10.3969/j.issn.1672-7029.2011.01.004

中华人民共和国建设部. 混凝土结构设计规范: GB 50010—2002[S]. 北京: 中国建筑工业出版社, 2002

任娟娟,刘学毅,赵坪锐. 连续道床板裂纹计算方法及影响因素[J]. 西南交通大学学报,2010,45(1): 34-38. doi: 10.3969/j.issn.0258-2724.2010.01.006

REN Juanjuan, LIU Xueyi, ZHAO Pingrui. Crack calculation method and influence factors for continuously reinforced slab[J]. Journal of Southwest Jiaotong University, 2010, 45(1): 34-38. doi: 10.3969/j.issn.0258-2724.2010.01.006

赵坪锐,刘学毅. 连续道床板温度应力应力计算方法研究[J]. 铁道标准设计,2008(10): 6-8. doi: 10.3969/j.issn.1004-2954.2008.10.002

ZHAO Pingrui, LIU Xueyi. The calculation method of the thermal stress in continuous track slab[J]. Railway Standard Design, 2008(10): 6-8. doi: 10.3969/j.issn.1004-2954.2008.10.002

赵坪锐,刘学毅. 连续道床板温度应力计算方法及参数分析[J]. 铁道建筑,2008(11): 81-85. doi: 10.3969/j.issn.1003-1995.2008.11.027

ZHAO Pingrui, LIU Xueyi. The calculation method of the thermal stress in continuous track slab and parameter analysis[J]. Railway Engineering, 2008(11): 81-85. doi: 10.3969/j.issn.1003-1995.2008.11.027

赵坪锐,闫见华,王克江,等. 连续道床板拉伸开裂模型试验研究[J]. 西南交通大学学报,2014,49(5): 793-798. doi: 10.3969/j.issn.0258-2724.2014.05.008

ZHAO Pingrui, YAN Jianhua, WANG Kejiang, et al. Model experiment study of continuous track slab tension cracks[J]. Journal of Southwest Jiaotong University, 2014, 49(5): 793-798. doi: 10.3969/j.issn.0258-2724.2014.05.008

张岷. 双块式无砟轨道连续式道床板后浇带施工工艺研究[J]. 铁道建筑,2018,58(3): 72-75. doi: 10.3969/j.issn.1003-1995.2018.03.18

ZHANG Min. Constrution technology of post casting belt for continuous roadbed slab of double-block ballastless track[J]. Railway Engineering, 2018, 58(3): 72-75. doi: 10.3969/j.issn.1003-1995.2018.03.18

过镇海, 时旭东. 钢筋混凝土原理和分析[M]. 北京: 清华大学出版社, 2003: 244-252

Relative Articles

[1]	SUN Yongxin, LIN Pengzhen, YANG Zijiang. Calculation Method for Reinforcement Stress in Ultra-High Performance Concrete Beams Considering Bond-Slip Effect[J]. Journal of Southwest Jiaotong University, 2024, 59(5): 1058-1067. doi: 10.3969/j.issn.0258-2724.20230130
[2]	YANG Rongshan, LI Ying, XU Zhaorong, LIU Jia. Mechanical Properties of Wet Concrete Inside Double-Block Ballastless Tracks in Rainy Areas[J]. Journal of Southwest Jiaotong University, 2022, 57(4): 840-847. doi: 10.3969/j.issn.0258-2724.20210440
[3]	SU Chengguang, LIU Dan, ZHAO Pingrui, LIU Xueyi. Meso-mechanical Effect of Track Slab Rebar Corrosion[J]. Journal of Southwest Jiaotong University, 2020, 55(2): 273-281, 289. doi: 10.3969/j.issn.0258-2724.20190321
[4]	ZHU Yongjian, ZHAO Guotang. Change Rule of Crack Widths of CRTSⅡTrack Slab[J]. Journal of Southwest Jiaotong University, 2019, 54(2): 351-358. doi: 10.3969/j.issn.0258-2724.20170201
[5]	ZHAO Pingrui, YAN Jianhua, WANG Kejiang, WANG Dong, LI Wei, WANG Jiawei. Model Experiment Study of Continuous Track Slab Tension Cracks[J]. Journal of Southwest Jiaotong University, 2014, 27(5): 793-798. doi: 10.3969/j.issn.0258-2724.2014.05.008
[6]	JI Yongsheng, ZENG Ping, MA Huirong, ZHANG Linglei, ZHAO Wen. Experimental Research on Influence of Transverse Crack on Corrosion Rate of Rebar in Concrete[J]. Journal of Southwest Jiaotong University, 2013, 26(1): 36-41,61. doi: 10.3969/j.issn.0258-2724.2013.01.006
[7]	WEI Youxin, QIN Chaohong, LI Chenghui, YANG Bin. Length Determination of Track Concrete Plate for Unit Double-Block Ballastless Track[J]. Journal of Southwest Jiaotong University, 2013, 26(2): 297-302,309. doi: 10.3969/j.issn.0258-2724.2013.02.017
[8]	Lin-Juan-Juan, LIU Hua-Yi, DIAO Ping-Dui. Crack CalculationM ethod and Influence Factors for Continuously Reinforced Slab[J]. Journal of Southwest Jiaotong University, 2010, 23(1): 34-39. doi: 10. 3969/.j issn. 0258-2724. 2
[9]	SHAN Cheng-Lin. Calculation Method of Bending Crack Width in RC Beams Strengthened by Bonding Steel Plate[J]. Journal of Southwest Jiaotong University, 2010, 23(4): 508-513. doi: 10. 3969/ j. issn. 0258-2724.
[10]	DING Rui, LIUHao-wu. Application of Distributed Optical Fiber Sensing Technique to Detection of Cracks in Concrete[J]. Journal of Southwest Jiaotong University, 2003, 16(6): 651-654.
[11]	WUDa-hong, ZHAO Ren-da. The Load and Crack Width Model for Partially Prestressed Concrete Beams Based on Neural Network[J]. Journal of Southwest Jiaotong University, 2002, 15(3): 231-235.
[12]	DANDan-hui, HE Guang-han. Analysis on the Effect of Stresses on Corrosion of Reinforcing Steels[J]. Journal of Southwest Jiaotong University, 2001, 14(2): 181-184.
[13]	DAN Dan-hui, WANG Qing-ling. Computer Simulation of Corrosive Cracks on RC Members[J]. Journal of Southwest Jiaotong University, 2000, 13(5): 484-487.

Supplements(0)

Cited By

Cited by

Periodical cited type(2)

1.	刘启宾，魏周春，徐旸，褚卫松，赵志强. 高原铁路隧道地段单元式道床板植筋检算. 铁道勘察. 2022(01): 110-113 .
2.	美丽古丽·买买提，朱明远. 严寒地区横缝开合度影响因素分析. 水电站机电技术. 2020(11): 101-104 .

Other cited types(0)

Proportional views

Proportional views

通讯作者: 陈斌, bchen63@163.com

1.
沈阳化工大学材料科学与工程学院沈阳 110142

Figures(9) / Tables(1)

Get Citation

PDF

XML

Article views(577) PDF downloads(10)