Deformation characteristics and interfacial damage of CRTS II slab track joints under operating temperature conditions

Abstract

Arching and cracking of joints between slabs have become a problem in China Railway Track System (CRTS) II slab track. The slab track is susceptible to complex temperature variations as a longitudinal continuous structure. Based on measured data, a thermal-mechanical coupling model of the track was established. The deformation characteristics and interfacial damage behavior of joints under typical temperature fields were studied. The findings indicate that the annual extreme temperature range of the slab track, fluctuates from −1.4 to 49.8 °C. The annual temperature gradient within the vertical depth range of 0 to 0.2 m of the track varies between −16.19 °C/m and 30.15 °C/m. The vertical deformation of joints is significantly influenced by high temperatures, with a maximum measured deformation of 0.828 mm. The joint seams are primarily affected by low temperatures, which lead to a separation of 0.9 to 1.0 mm. Conversely, interlayer damage of joints is predominantly influenced by elevated temperatures. In summer, the maximum ratio of interface damage area in the joint can reach up to 95%, with the maximum debonding area ratio can be as high as 84%. The research results can provide help for joint damage regularity and deformation control of CRTS II slab track.

Keywords

CRTS II slab track / temperature measurement / thermo-mechanical coupling analysis / deformation characteristics / damage evolution

References

[1] Charoenwong C, Connolly D P, Colaço A, et al.. Railway slab vs ballasted track: A comparison of track geometry degradation [J]. Construction and Building Materials, 2023, 378: 131121

[2] Gautier P E. Slab track: Review of existing systems and optimization potentials including very high speed [J]. Construction and Building Materials, 2015, 92: 9-15

[3] Zhong Y-l, Gao L, Zhang Y-R. Effect of daily changing temperature on the curling behavior and interface stress of slab track in construction stage [J]. Construction and Building Materials, 2018, 185: 638-647

[4] Xu Y-d, Yan D-b, Zhu W-j, et al.. Study on the mechanical performance and interface damage of CRTS II slab track with debonding repairment [J]. Construction and Building Materials, 2020, 257: 119600

[5] Wang D-d, Li S-l, Lin C, et al.. Experimental study of friction performance degradation in sliding layer of CRTS II slab track considering dust incursion [J]. Engineering Failure Analysis, 2024, 156: 107850

[6] Lou P, Sun Z. Service performance of CRTS II ballastless track in high temperature tunnel [J]. Construction and Building Materials, 2023, 400: 132705

[7] Zhang X-y, Lu Z-h, Zhao Y-g, et al.. Optimum maintenance strategy for CRTS II slab track based on time-dependent system reliability [J]. Structures, 2023, 50: 387-399

[8] Ye W-l, Ren J-j, Lu C-f, et al.. Intelligent detection of fastener defects in ballastless tracks based on deep learning [J]. Automation in Construction, 2024, 159: 105280

[9] Ren J-j, Zhang K-y, Zheng J-l, et al.. Railway subgrade thermal-hydro-mechanical behavior and track irregularity under the sunny-shady slopes effect in seasonal frozen regions [J]. Journal of Central South University, 2022, 29(11): 3793-3810

[10] Zeng C, Guo W, Liu H-y, et al.. Gradient descent based restoration method of track irregularity in asymmetric chord reference method [J]. Journal of Central South University, 2024, 31(1288-301

[11] Han J, Zhao G-t, Wang P, et al.. Composite embedded track structure considering temperature dependent characteristics for rolling noise reduction of inter-city railway system [J]. Applied Acoustics, 2024, 219: 109936

[12] Ou Z-m, Li F-J. Analysis and prediction of the temperature field based on in situ measured temperature for CRTS-II ballastless track [J]. Energy Procedia, 2014, 61: 1290-1293

[13] Zhou R, Zhu X, Du Y-l, et al.. Thermal response of the bridge supported longitudinal CRTS II slab track subject to diurnal temperature variation [J]. Construction and Building Materials, 2023, 395: 132332

[14] Zhou R, Yue H-h, Du Y-l, et al.. Experimental and numerical study on interfacial thermal behaviour of CRTS II slab track under continuous high temperatures [J]. Engineering Structures, 2023, 284: 115964

[15] Zhang Q, Cai X-p, Zhang Y-r, et al.. Realtime temperature field and thermal deformation of slab track on cable-stayed bridge [J]. Case Studies in Thermal Engineering, 2023, 51: 103582

[16] Chen Z-l, Cai X-p, Wang T, et al.. Mapping the relationship between the temperature gradient of CRTS III slab track on bridge and rail deformation in high-speed railways [J]. Structures, 2024, 59: 105777

[17] Zhang Q, Cai X-p, Zhong Y-l, et al.. Temperature field and thermal effects of the longitudinal connected slab track based on the measurement data and thermal-fluid-structure coupling analysis [J]. Construction and Building Materials, 2022, 343: 128121

[18] Cai X-p, Zhang Q, Zhang L-l, et al.. Spatial temperature characteristics of CRTS III slab track of railways on plateaus [J]. Cold Regions Science and Technology, 2024, 218: 104091

[19] Sun Z, Lou P, Tao W. Mechanical behaviors of ballastless track under temperature and vehicle loads in high geo-temperature tunnel [J]. Case Studies in Construction Materials, 2024, 20: e03215

[20] Zhou R, Zhu X, Huang J-q, et al.. Structural damage analysis of CRTS II slab track with various interface models under temperature combinations [J]. Engineering Failure Analysis, 2022, 134: 106029

[21] Chen Z, Xiao J-l, Liu X-k, 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

[22] Li Y, Chen J-j, Wang J-x, et al.. Study on the interface damage of CRTS II slab track under temperature load [J]. Structures, 2020, 26: 224-236

[23] Huang Y-c, Gao L, Zhong Y-l, et al.. Deformation evolution of upward arch of ballastless track slab at extreme daily temperature in summer [J]. Journal of Central South University (Science and Technology), 2022, 53(2599-609(in Chinese)

[24] Ren J-j, Zhang K-y, Xu X-s, et al.. Performance evolution of self-compacting concrete for ballastless track based on high-cycle fatigue damage constitutive model [J]. Journal of Central South University, 2023, 30(6): 2048-2063

[25] Cui X-h, Du B-w, Xiao H, et al.. Interface damage and arching mechanism of CRTS II slab track under temperature load [J]. Construction and Building Materials, 2021, 291: 123258

[26] Yao G-w, Song A-x, Zhang G-f, et al.. Experimental study on interface performance of CRTS II slab ballastless track under temperature loading [J]. Structures, 2024, 62: 106199

[27] Li Y, Chen J-j, Wang J-x, et al.. Study on the effects of solar reflective coatings on the interfacial damage of the CRTS II slab track [J]. Construction and Building Materials, 2022, 325: 126711

[28] Cai X-p, Luo B-c, Zhong Y-l, et al.. Arching mechanism of the slab joints in CRTSII slab track under high temperature conditions [J]. Engineering Failure Analysis, 2019, 98: 95-108

[29] Chen L, Chen J-j, Wang J-x, et al.. Effects of joint stiffness degradation on vertical stability of CRTSII slab ballastless track [J]. Construction and Building Materials, 2023, 363: 129812

[30] Li Y, Li H-y, Zhou R, et al.. Mechanical performance of CRTS II slab tracks in reinforced-unreinforced transition zone in extreme heat events [J]. Transportation Geotechnics, 2024, 45: 101201

[31] Li Y, Li H-y, An L-m, et al.. Interfacial failure behavior of longitudinally coupled slab tracks restored by interface adhesives [J]. International Journal of Adhesion and Adhesives, 2024, 132: 103662

[32] Li Y, Chen J-j, Wang J-x, et al.. Interfacial failure and arching of the CRTS II slab track reinforced by post-installed reinforcement bars due to thermal effects [J]. Engineering Failure Analysis, 2021, 125: 105405

[33] Yan D-b, Xu Y-d, Zhu W-jun. Effects of debonding repairment on interfacial damage and thermal deformation of CRTS II slab ballastless track [J]. Construction and Building Materials, 2023, 389: 131793

[34] Chen H-p, Li W-b, Jiang Y, et al.. Fatigue life prediction for CA mortar in CRTS II railway slab track subjected to combined thermal action and vehicle load by mesoscale numerical modelling [J]. Construction and Building Materials, 2024, 437: 136987

[35] Wu W, Liu P, Gong Yan F. Research on the heat - humidity coupling transfer model of the CRTS II type track slab and its characteristics [J]. International Journal of Heat and Mass Transfer, 2024, 224: 125368

[36] Lou P, Shi T. Thermal arching and interfacial damage evolution of CRTS-II slab track under solar radiation in alpine and plateau regions [J]. Alexandria Engineering Journal, 2023, 74: 301-315

[37] Liu J, Liu Y-j, Zhang G-J. Experimental analysis of temperature gradient patterns of concrete-filled steel tubular members [J]. Journal of Bridge Engineering, 2019, 24(11): 04019109

[38] Liu B Y H, Jordan R C. The long-term average performance of flat-plate solar-energy collectors With design data for the U. S., its outlying possessions and Canada [J]. Solar Energy, 1963, 7(253-74

[39] Saetta A, Scotta R, Vitaliani R. Stress analysis of concrete structures subjected to variable thermal loads [J]. Journal of Structural Engineering, 1995, 121(3): 446-457

[40] Tayşi N, Abid S. Temperature distributions and variations in concrete box-girder bridges: Experimental and finite element parametric studies [J]. Advances in Structural Engineering, 2015, 18(4): 469-486

[41] Zhang C-y, Liu Y-j, Liu J, et al.. Validation of long-term temperature simulations in a steel-concrete composite girder [J]. Structures, 2020, 27: 1962-1976

[42] Demiral M, Abbassi F, Saracyakupoglu T, et al.. Damage analysis of a CFRP cross-ply laminate subjected to abrasive water jet cutting [J]. Alexandria Engineering Journal, 2022, 61(10): 7669-7684

[43] Song S H, Paulino G H, Buttlar W G. A bilinear cohesive zone model tailored for fracture of asphalt concrete considering viscoelastic bulk material [J]. Engineering Fracture Mechanics, 2006, 73(18): 2829-2848

[44] Li Y, Chen J-j, Jiang Z-q, et al.. Thermal performance of the solar reflective fluorocarbon coating and its effects on the mechanical behavior of the ballastless track [J]. Construction and Building Materials, 2021, 291: 123260

[45] Camanho P P, Davila C G, De Moura M F. Numerical simulation of mixed-mode progressive delamination in composite materials [J]. Journal of Composite Materials, 2003, 37(16): 1415-1438

[46] Chen J, Crisfield M, Kinloch A J, et al.. Predicting progressive delamination of composite material specimens via interface elements [J]. Mechanics of Advanced Materials and Structures, 1999, 6(4301-317

[47] Huang Y-c, Gao L, Zhong Y-l, et al.. Study on the damage evolution of the joint and the arching deformation of CRTS-II ballastless slab track under complex temperature loading [J]. Construction and Building Materials, 2021, 309: 125083

[48] Zhong Y-l, Gao L, Wang P, et al.. Mechanism of interfacial shear failure between CRTS II slab and CA mortar under temperature loading [J]. Engineering Mechanics, 2018, 35(2230-238(in Chinese)

[49] Jendele L, Šmilauer V, Červenka J. Multiscale hydro-thermo-mechanical model for early-age and mature concrete structures [J]. Advances in Engineering Software, 2014, 72: 134-146

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