西南交通大学学报

2019, 54(6): 1-2.

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Evolutionary Game Model of Traffic Violations among Taxi Drivers

JIANG Xinguo, ZHOU Yue, XIA Liang, FU Chuanyun

2019, 54(6): 1121-1128. doi: 10.3969/j.issn.0258-2724.20180531

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In order to investigate the mechanism of violation costs on taxi drivers’ traffic violation behavior, the composition and cumulation of traffic violation costs over time are explored with a demerit point system. To be specific, the taxi driver’s license status were classified into two categories by ...

Field Tests on Lateral Operational Characteristics of Passenger Cars on Helical Ramps (Bridges)

XU Jin, LI Jianxing, LIN Wei, CUI Qiang, WU Guoxiong, YANG Kui

2019, 54(6): 1129-1138. doi: 10.3969/j.issn.0258-2724.20170824

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Helical ramps and helical bridges are widely used in recent years, however the driving patterns and dynamic characteristics of vehicles running on them are still unclear. Therefore, to obtain the driving pattern of passenger cars on helical ramps (bridge), driving tests using real cars were carried ...

Light-Duty Vehicles Driving Cycle Construction Based on Urban Roads

ZHANG Hong, YAO Yangang, YANG Xiaoqin

2019, 54(6): 1139-1146, 1154. doi: 10.3969/j.issn.0258-2724.20180224

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In order to regulate vehicle energy consumption, calibrate vehicle emission and optimize vehicle performance, the driving cycles of light-duty vehicles on the urban roads of Hohhot is analyzed. Firstly, the 74 sample data of driving cycles were collected through special data acquisition equipments o...

Nonlinear Fractal Characteristics of Air Traffic Flow

WANG Fei

2019, 54(6): 1147-1154. doi: 10.3969/j.issn.0258-2724.20180328

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To provide scientific evidence for traffic flow modeling and prediction, the nonlinear characteristics of air traffic flow were studied based on fractal. First, 4 time series were constructed, and their nonlinearities were tested by the surrogate data method, and the 5-minute-scale time series was d...

Effect of Transverse Deflection on Force State of Prestressed Concrete Trough Girders with Asymmetric Cross-Section

ZHU Liming, TANG Jun, XING Shiling

2019, 54(6): 1155-1161. doi: 10.3969/j.issn.0258-2724.20170683

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This work aims to study the influence of transverse deflection of a beam body on pushing construction of an prestressed concrete (PC) open thin-walled beam with asymmetric cross-section and provide a reasonable deviation correction threshold for the incremental launching technique. Taking as a proto...

Design of Half-Through Cable-Arch Bridge with 700 m Main Span

XIE Xiaoli, FU Yuanjie, DENG Nianchun

2019, 54(6): 1162-1168, 1176. doi: 10.3969/j.issn.0258-2724.20170565

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As the span of arch bridges increases, the stability problem of the arch rib is becoming severe and the huge horizontal thrust needs to be balanced with tie rods or foundation; meanwhile, large anchors of a long-span suspension bridge costs a lot. Aiming at the two problems above, a new type of brid...

Overloaded Truck Models and Their Load Effects on Multiple-One Lane for Highway Bridges

LIU Lang, CHEN Dongjun, REN Qingyang

2019, 54(6): 1169-1176. doi: 10.3969/j.issn.0258-2724.20170468

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To analyze characteristics of typical parameters of overloaded trucks as well as their models, weight-in-motion (WIM) data was collected over three years from California, U.S., and the permit truck issued by California Department of Transportation (Caltrans) was selected as a reference to extract ov...

Smoke Exhaust Technology of Different Opening State of Smoke Vent in Mawan Tunnel

ZENG Yanhua, LI Jie, ZHANG Xianfu, HAN Tong, DING Maorui, ZHANG Song

2019, 54(6): 1177-1186. doi: 10.3969/j.issn.0258-2724.20170452

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In order to study the effect of the tunnel smoke exhaust mode and the opening state of the smoke Vent on the smoke exhaust efficiency during the fire, the smoke exhaust characteristics and smoke exhaust efficiency of the Mawan underwater shield tunnel were analyzed. Firstly, through the theoretical ...

Study on Design Model of Quasi-Rectangular Shield Tunnel Linings

YE Yuhang, LIU Xian, LIU Zhen, ZHANG Weixi, YANG Zhihao, ZHU Yaohong

2019, 54(6): 1187-1195. doi: 10.3969/j.issn.0258-2724.20170553

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In order to obtain a design model for quasi-rectangular shield tunnel linings, a full-scale ring test was conducted to acquire the deformation and internal forces of the linings with loads simulated according to the actual ones in normal operation conditions. The test results were then analyzed in c...

Temperature Field Characteristics of High-Speed Railway Subgrade Surface with Asphalt Concrete Layer in Cold Regions

CHEN Xianhua, MA Lili, YANG Guotao, CAI Degou

2019, 54(6): 1196-1202. doi: 10.3969/j.issn.0258-2724.20170490

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In order to gain better insight on the temperature field characteristics of the subgrade surface with asphalt concrete layer in cold regions, the transient thermal finite element analysis is adopted to study the temperature field spatial-temporal distribution of ballastless tracks in cold regions an...

Band Gap Characteristics of Vibration Isolators of Phononic Crystals under Floating Slab

NONG Xingzhong, LI Xiang, LIU Tanghui, SHENG Xi, WANG Ping, ZHAO Caiyou

2019, 54(6): 1203-1209, 1276. doi: 10.3969/j.issn.0258-2724.20180849

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In order to improve the vibration damping effect of the floating slab track and hinder the propagation of the vertical vibration energy of the floating slab to the rail base, a vibration isolator for the floating slab track based on the local resonance mechanism of phononic crystals is developed. Th...

Influence of Train Load on Mechanical Property of Prefabricated Slab Track

REN Juanjuan, DENG Shijie, YAN Yafei, DU Wei, NI Yuefeng

2019, 54(6): 1210-1218. doi: 10.3969/j.issn.0258-2724.20170642

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To study the influence of passenger and freight trains on the mechanical deterioration of concrete for slab track, the indoor cyclic loading test was conducted and described by using the damage variables based on damage mechanics. First, the FE model consisting of the rail, fastening, slab, CA morta...

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

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

2019, 54(6): 1219-1226. doi: 10.3969/j.issn.0258-2724.20180557

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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...

Optimization Design for Internal Structure of Embedded Rail Trough

BI Lanxiao, LIU Weixing, XING Mengting, ZHAO Pingrui, LIU Xueyi

2019, 54(6): 1227-1234. doi: 10.3969/j.issn.0258-2724.20170734

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Embedded ballastless tracks are stable, low maintenance, and good at shock absorption and noise reduction, such that it accommodates the requirements of urban rail transit operation, and has been widely used in the construction of modern tram lines. Owning to the structural characteristics of embedd...

Mechanical Properties and Water Holding Characteristics of Initially Isotropic Soils and Transversely Isotropic Soils

GUO Nan, CHEN Zhenghan, YANG Xiaohui, GUO Jianfeng, SUN Shuguo

2019, 54(6): 1235-1243. doi: 10.3969/j.issn.0258-2724.20180065

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In order to investigate the difference between the mechanical properties and water quantity variation of unsaturated loess under different initial conditions, a method for preparing isotropic and transversely isotropic specimens was suggested. An improved triaxial apparatus for unsaturated soils was...

Semi-analytical Analysis of One-Dimensional Nonlinear Consolidation of Multi-layered Structured Soft Clay

XIA Changqing, HU Anfeng, FU Peng, CUI Jun, XIE Kanghe, ZHOU Yushan

2019, 54(6): 1244-1251. doi: 10.3969/j.issn.0258-2724.20170612

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To study the impact of structural properties on the consolidation behavior of multi-layered soft clay under time-dependent loading, the problem of nonlinear consolidation of structured soft clay was addressed by analyzing the nonlinear variable permeability and compressibility of structured soft cla...

Corrosion Prediction of Coated Steel in Magnesium Cement Concrete Based on Wiener Degradation

QIAO Hongxia, WANG Penghui, LI Yuanke, GUO Xiangke, GONG Wei

2019, 54(6): 1252-1257. doi: 10.3969/j.issn.0258-2724.20170388

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The corrosion of magnesium cement concrete on steel bars limits its widespread application. To solve this problem, coating is proposed to alleviate the corrosion of steel bars and ensure that magnesium cement-reinforced concrete buildings meet the design requirements over their service life. Based o...

Seismic Performance of Multi-storey Masonry Wall Repaired by Carbon Fiber Reinforced Polymer Grids

TAO Yi, GU Jinben, XIN Ren, YAO Jitao

2019, 54(6): 1258-1267. doi: 10.3969/j.issn.0258-2724.20170491

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To study the failure mechanism and repair effect of plain masonry structure repaired by carbon fiber reinforced polymer (CFRP) grids, firstly, a three-storey masonry wall with openings was destroyed under the pseudo-static action, then, the areas where the cracks intensively occurred in destroyed ma...

Micromechanical Analysis of Steel Fiber Corrosion in Ultra-high Performance Concrete

SHU Gang, ZHANG Qinghua, HUANG Yun, BU Yizhi

2019, 54(6): 1268-1276. doi: 10.3969/j.issn.0258-2724.20170453

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In order to study the influence of the volume content and corrosion degree of the steel fiber on the strength and deformation of the structure, the large-volume randomization of the steel fiber in ultra-high performance concrete (UHPC) matrix was realized by the ABAQUS software redeveloped by self-c...

Load Characteristics of Anti-rolling Torsion Bar of High-Speed Train

WANG Wengjing, ZHANG Zhipeng, LI Guangquan, SONG Chunyuan

2019, 54(6): 1277-1282, 1348. doi: 10.3969/j.issn.0258-2724.20180060

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In order to obtain the load characteristics of the anti-rolling torsion bar during the high-speed train operation, first, the change rules of the load with the train speed, curve radius, and curve superelevation were studied by combining the gyroscope and the speed signal. Second, the maximum loads ...

Wear Predication of Tunnel Boring Machine Cutters Based on In-situ Measured Data

YANG Jihua, YAN Changbin

2019, 54(6): 1283-1292. doi: 10.3969/j.issn.0258-2724.20170677

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To reasonably predict the influence of geological conditions, tunneling parameters, and cutter ring characteristics on the wear of disc cutter rings during tunnel boring machine (TBM) construction, the rock breaking mechanism and cutter ring wear mechanism were studied. The concept of comprehensive ...

Design and Experiment of Comprehensive Alternating Pressure Testing Machine

GAN Rong, HAO Luoliang, WANG Shuai, ZHANG Jianshuang, LIU Sha

2019, 54(6): 1293-1297. doi: 10.3969/j.issn.0258-2724.20190264

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At present, the piston reciprocating alternating testing machine can not be used in the alternating tests for gas medium pressure instruments, vacuum instruments, positive and negative pressure gauges and differential pressure instruments under a static pressure environment. A comprehensive alternat...

Overriding Behavior in Train Collisions Based on Moving Vehicle-Track Coupled Model

YANG Chao, LI Qiang, WANG Xi, WANG Mingmeng

2019, 54(6): 1298-1304. doi: 10.3969/j.issn.0258-2724.20170948

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In order to reveal how vehicle parameters affect the overriding behavior in train collisions, the vehicle model and the moving track model were developed in view of the basic ideas of vehicle-track interaction. The nonlinear wheel-rail contact model was applied in coupling both models. A nonlinear c...

Structural Dynamic Characteristics of Force-Measurement System for Impulse Wind Tunnel

LÜ Jinzhou, ZHANG Xiaoqing, ZHAO Xiaonan, CHEN Guangxiong, WU Yingchuan

2019, 54(6): 1305-1313. doi: 10.3969/j.issn.0258-2724.20170737

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During testing in impulse wind tunnel, vibrations of the force-measurement system (FMS) caused by airflow will greatly tamper measurement results. To solve this issue, firstly the dynamic model of the FMS was constructed according to its structural characteristics. Then, the virtual calibration and ...

Static Recrystallization Behavior of Nitrogen Alloyed HRB500E Steel

WU Shangwen, WU Guangliang, ZHANG Yongji, MENG Zhengbing

2019, 54(6): 1314-1322. doi: 10.3969/j.issn.0258-2724.20170918

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In order to provide necessary theoretical basis for hot rolling process, the static recrystallization behavior of nitrogen alloyed HRB500E steel was studied by using stress relaxation method. The effects of various strain capacity, strain temperature and strain rate on the static recrystallization o...

Balanced Current Control Method for Virtual Synchronous Generator in Electro-Hydrogen Multi-Energy Complementary Microgrid

CHEN Weirong, YU Jin, LI Qi, PU Yuchen, YANG Hanqing, HAN Ying

2019, 54(6): 1323-1331. doi: 10.3969/j.issn.0258-2724.20180860

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The multi-energy complementary microgrid concentrates multiple complementary energy sources in the same grid-connected system, which can effectively improve energy utilization efficiency and power supply reliability of the microgrid. Virtual synchronous generator (VSG) technology enables friendly ne...

Suppression Solutions to Transient Traction Current Interference in Neutral Zone for Track Circuit

YANG Shiwu, CHEN Bingjun, CHEN Haikang, CUI Yong, TANG Qiankun

2019, 54(6): 1332-1341. doi: 10.3969/j.issn.0258-2724.20180692

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When an electric locomotive or an EMU (electric multiple unit) passes neutral zone in a track section, transient traction current is very likely to cause harmonic interference to track circuit, which may produce failure. To guarantee stable performance of track circuit under the influence of harmoni...

Evaluation Method of Seat Comfort for High-Speed Trains Based on Seat Ergonomic Parameters

WANG Jin, ZHI Jinyi, XIANG Zerui, LI Ran, XU Xiaofei, YAN Lei, XU Gang

2019, 54(6): 1342-1348. doi: 10.3969/j.issn.0258-2724.20180499

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To reduce the cost in the comfort evaluation of high-speed trains and avoid strenuous questionnaire investigation and statistical analysis, the static comfort evaluation method of high speed train seats is studied. Firstly, the seat comfort calculation method is derived by determining the comfort ev...

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2019 Vol. 54, No. 6