- ISSN 0258-2724
- CN 51-1277/U
- EI Compendex
- Scopus
- Indexed by Core Journals of China, Chinese S&T Journal Citation Reports
- Chinese S&T Journal Citation Reports
- Chinese Science Citation Database
| Citation: | LIU Xiaokai, LIU Xueyi, XIAO Jieling, DONG Jiajia. Analysis of Internal forces and Damage of Broad-Narrow Joint of CRTSⅡ Slab Track Under Temperature Rise[J]. Journal of Southwest Jiaotong University, 2024, 59(2): 273-280. doi: 10.3969/j.issn.0258-2724.20210946
|
In order to study the internal forces and the damage of broad-narrow joint under a temperature rise, a detailed finite element model with the interface between old and new concrete is established on the basis of concrete damaged plasticity model and cohesive zone model. The damage parameters and stress under different temperature rises are calculated, and the effects of the concrete strength at broad-narrow joint and the narrow joint width are analyzed. The results show that the fracture at the junction between broad and narrow joints is a brittle tension failure, and the breakage of narrow joint is a gradual compression failure. Compared with the fracture at the junction between broad and narrow joints, the breakage of narrow joint has a greater impact on the structural stress. The vertical tension stress arising from the uneven geometry at the junction between broad and narrow joints is the main cause for the damaged broad-narrow joint. Increasing the broad-narrow joint strength reduces the longitudinal compression stress and the compression damage, but contribute less to the vertical tension stress and the tension damage. To reduce damage and improve strength, it is recommended to equate the widths for the broad and narrow joints and the strengths for the concrete at the broad-narrow joint and the slab.
| [1] |
戴公连,葛浩. 桥上纵连板式无砟轨道初始状态特征统计分析[J]. 铁道工程学报,2020,37(9): 1-6. doi: 10.3969/j.issn.1006-2106.2020.09.001
DAI Gonglian, GE Hao. Statistical analysis of the initial state characteristics of the longitudinally connected ballastless track on bridge[J]. Journal of Railway Engineering Society, 2020, 37(9): 1-6. doi: 10.3969/j.issn.1006-2106.2020.09.001
|
| [2] |
刘笑凯,刘学毅,肖杰灵,等. 温度作用下纵连式无砟轨道垂向稳定性研究[J]. 西南交通大学学报,2018,53(5): 921-927,944. doi: 10.3969/j.issn.0258-2724.2018.05.007
LIU Xiaokai, LIU Xueyi, XIAO Jieling, et al. Vertical stability of longitudinal continuous ballastless track under temperature variation[J]. Journal of Southwest Jiaotong University, 2018, 53(5): 921-927,944. doi: 10.3969/j.issn.0258-2724.2018.05.007
|
| [3] |
FENG Q S, CHAO H Y, LEI X Y. Influence of the seam between slab and CA mortar of CRTSⅡ ballastless track on vibration characteristics of vehicle-track system[J]. Procedia Engineering, 2017, 199: 2543-2548. doi: 10.1016/j.proeng.2017.09.259
|
| [4] |
钟阳龙,高亮,侯博文. 不同植筋方案纵连板轨道砂浆层抗剪性能分析[J]. 西南交通大学学报,2018,53(1): 38-45,63. doi: 10.3969/j.issn.0258-2724.2018.01.005
ZHONG Yanglong, GAO Liang, HOU Bowen. Shear behavior of mortar layer in continuous slab track with different arrangement schemes of embedded steel bars[J]. Journal of Southwest Jiaotong University, 2018, 53(1): 38-45,63. doi: 10.3969/j.issn.0258-2724.2018.01.005
|
| [5] |
许玉德,缪雯颖,严道斌,等. 基于改进混合模式内聚力模型的无砟轨道层间损伤分析[J]. 铁道学报,2021,43(4): 125-135. doi: 10.3969/j.issn.1001-8360.2021.04.016
XU Yude, MIAO Wenying, YAN Daobin, et al. Analysis of interlayer interface damage in ballastless track based on improved mixed-mode cohesive zone model[J]. Journal of the China Railway Society, 2021, 43(4): 125-135. doi: 10.3969/j.issn.1001-8360.2021.04.016
|
| [6] |
闫斌,娄徐瑞利,谢浩然,等. 冻胀冻融作用下材料劣化对板式无砟轨道性能的影响[J]. 交通运输工程学报,2021,21(5): 62-73. doi: 10.19818/j.cnki.1671-1637.2021.05.005
YAN Bin, LOU Xuruili, XIE Haoran, et al. Effect of material deterioration on slab ballastless track performance under frost heaving and freezing-thawing[J]. Journal of Traffic and Transportation Engineering, 2021, 21(5): 62-73. doi: 10.19818/j.cnki.1671-1637.2021.05.005
|
| [7] |
LUBLINER J, OLIVER J, OLLER S, et al. A plastic-damage model for concrete[J]. International Journal of Solids and Structures, 1989, 25(3): 299-326. doi: 10.1016/0020-7683(89)90050-4
|
| [8] |
LEE J, FENVES G L. Plastic-damage model for cyclic loading of concrete structures[J]. Journal of Engineering Mechanics, 1998, 124(8): 892-900. doi: 10.1061/(ASCE)0733-9399(1998)124:8(892)
|
| [9] |
SARIKAYA A, ERKMEN R E. A plastic-damage model for concrete under compression[J]. International Journal of Mechanical Sciences, 2019, 150: 584-593. doi: 10.1016/j.ijmecsci.2018.10.042
|
| [10] |
PARK K, PAULINO G H. Cohesive zone models: a critical review of traction-separation relationships across fracture surfaces[J]. Applied Mechanics Reviews, 2011, 64(6): 060802.1-060802.20.
|
| [11] |
LÓPEZ-PUENTE J, ARIAS A, ZAERA R, et al. The effect of the thickness of the adhesive layer on the ballistic limit of ceramic/metal armours: an experimental and numerical study[J]. International Journal of Impact Engineering, 2005, 32(1/2/3/4): 321-336.
|
| [12] |
YANG J F, LIAN H J, NGUYEN V P. Study of mixed mode Ⅰ/Ⅱ cohesive zone models of different rank coals[J]. Engineering Fracture Mechanics, 2021, 246: 107611.1-107611.16.
|
| [13] |
中华人民共和国住房和城乡建设部. 混凝土结构设计规范: GB 50010—2010[S]. 北京: 中国建筑工业出版社, 2011.
|
| [14] |
张劲,王庆扬,胡守营,等. ABAQUS混凝土损伤塑性模型参数验证[J]. 建筑结构,2008,38(8): 127-130. doi: 10.19701/j.jzjg.2008.08.036
ZHANG Jin, WANG Qingyang, HU Shouying, et al. Parameters verification of concrete damaged plastic model of ABAQUS[J]. Building Structure, 2008, 38(8): 127-130. doi: 10.19701/j.jzjg.2008.08.036
|
| [15] |
李培刚. CRTSⅡ型板式轨道层间损伤及其影响研究[D]. 成都: 西南交通大学, 2015.
|
| [16] |
李再帏,吴刚,朱文发,等. 基于Lamb波的CRTSⅡ型板式无砟轨道层间损伤检测方法[J]. 铁道学报,2020,42(12): 120-126. doi: 10.3969/j.issn.1001-8360.2020.12.016
LI Zaiwei, WU Gang, ZHU Wenfa, et al. CRTSⅡ slab ballastless track interlayer damage detection method based on Lamb wave[J]. Journal of the China Railway Society, 2020, 42(12): 120-126. doi: 10.3969/j.issn.1001-8360.2020.12.016
|
| [17] |
赵国堂,刘钰. CRTSⅡ型板式无砟轨道结构层间离缝机理研究[J]. 铁道学报,2020,42(7): 117-126.
ZHAO Guotang, LIU Yu. Mechanism analysis of delamination of CRTS Ⅱ slab ballastless track structure[J]. Journal of the China Railway Society, 2020, 42(7): 117-126.
|
| [18] |
张鹏飞,涂建,桂昊,等. 温梯荷载下桥上CRTSⅡ型板式无砟轨道的力学特性[J]. 西南交通大学学报,2021,56(5): 945-952.
ZHANG Pengfei, TU Jian, GUI Hao, et al. Mechanical properties of CRTS Ⅱ slab ballastless track on bridge under temperature gradient loads[J]. Journal of Southwest Jiaotong University, 2021, 56(5): 945-952.
|
| [19] |
欧祖敏,孙璐,程群群. 基于气象资料的无砟轨道温度场计算与分析[J]. 铁道学报,2014,36(11): 106-112. doi: 10.3969/j.issn.1001-8360.2014.11.021
OU Zumin, SUN Lu, CHENG Qunqun. Analysis on temperature field of ballastless track structure based on meteorological data[J]. Journal of the China Railway Society, 2014, 36(11): 106-112. doi: 10.3969/j.issn.1001-8360.2014.11.021
|
Figures(14) / Tables(2)
DownLoad:
