|Table of Contents|

Bearing capacity safety of hollow slab bridge under heavy traffic load(PDF)

《交通运输工程学报》[ISSN:1671-1637/CN:61-1369/U]

Issue:
2017年03期
Page:
1-12
Research Field:
道路与铁道工程
Publishing date:
2017-08-05

Info

Title:
Bearing capacity safety of hollow slab bridge under heavy traffic load
Author(s):
HUANG Ping-ming1 YUAN Yang-guang1 ZHAO Jian-feng2 HAN Wan-shui1 LI Yong-qing3 WU Jun1
1. Shaanxi Provincial Major Laboratory for Highway Bridge and Tunnel, Chang'an University, Xi'an 710064, Shaanxi, China; 2. College of Road and Bridge Engineering, Zhejiang Institute of Communications, Hangzhou 311112, Zhejiang, China; 3. CCCC First Highway Consultants Co., Ltd., Xi'an 710075, Shaanxi, China
Keywords:
bridge engineering hollow slab bridge heavy traffic weigh-in-motion bearing capacity safety
PACS:
U441.2
DOI:
-
Abstract:
Based on the 18-month weigh-in-motion(WIM)data of Xuanda Expressway in Hebei Province, the load data of extra-heavy trucks were extracted, the key load parameters including the mass, speed, arrival time and lane distribution of vehicle were investigated, the types of extra-heavy trucks were classified, and the axle load distributions were analyzed. The load cases of 883 extra-heavy trucks were dynamically and visually simulated by using Bridge Dynamics Analysis System, the responses of hollow slab bridges were compared with the design vehicle load effects, and the differences between extra-heavy truck loads and corresponding design loads were investigated. The bearing capacity safety of hollow slab bridges under heavy traffic was investigated by considering the effect combination of dead load and extra-heavy truck load. Analysis result shows that the ratios of extreme values of positive bending moment and shear force to the corresponding design values are 2.09 and 1.97, respectively, which indicates that the maximum extra-heavy truck loads are obviously higher than vehicle design loads. the ratios of average values of positive bending moment and shear force to the corresponding design values are close to 1.0, which indicates that the average extra-heavy truck load is close to the design vehicle load. The average values of evaluation indexes of bending and shearing bearing capacities fluctuate around 0.50 and 0.40, respectively, the extreme values fluctuate around 0.72 and 0.50, which indicates that the hollow slab bridge at the current design level can satisfy the operation safety requirement under heavy traffic, and the bending capacity has a higher redundancy than the shearing capacity. The evaluation indexes of bearing capacity don't change obviously with the increase of span length, which indicates that the redundancy of bearing capacity remain stable when the span length increases. 5 tabs, 19 figs, 25 refs.

References:

[1] SASAKI K K, PARET T, ARAIZA J C, et al. Failure of concrete T-beam and box-girder highway bridges subjected to cyclic loading from traffic[J]. Engineering Structures, 2010, 32(7): 1838-1845.
[2] XU Fu-you, ZHANG Ming-jie, WANG Lei, et al. Recent highway bridge collapses in China: review and discussion [J]. Journal of Performance of Constructed Facilities, 2016, 30(5): 1-8.
[3] 刘凤山,杨 琪.装配式简支空心板梁桥体外横向预应力加固效果分析[J].筑路机械与施工机械化,2014,31(9):79-82. LIU Feng-shan, YANG Qi. Analysis on reinforcement effect of external transverse prestress on fabricated simply- supported hollow-slab bridge[J]. Road Machinery and Construction Mechanization, 2014, 31(9): 79-82.(in Chinese)
[4] 胡大琳,高 军,任 勇.超重交通对府店公路影响分析及控制对策[J].中外公路,2008,28(5):247-251. HU Da-lin, GAO Jun, REN Yong.The influences of extra-heavy traffic in Fu-Dian Road and the countermeasures[J]. Journal of China and Foreign Highway, 2008, 28(5): 247-251.(in Chinese)
[5] 秦禄生.重载条件下小跨径简支板桥的横向铰接能力分析[J].公路,2007(10):14-16. QIN Lu-sheng.Horizontal articulated ability analysis of small span simply supported slab bridge under heavy load [J]. Highway, 2007(10): 14-16.(in Chinese)
[6] 余志武,朱红兵,蒋丽忠,等.公路桥梁车辆荷载随机过程模型[J].中南大学学报:自然科学版,2011,42(10):3131-3135. YU Zhi-wu, ZHU Hong-bing, JIANG Li-zhong, et al.Vehicles load stochastic process model of highway bridges[J]. Journal of Central South University: Science and Technology, 2011, 42(10): 3131-3135.(in Chinese)
[7] 闫 磊,吕颖钊, 贺拴海,等.在役混凝土桥梁构件可靠性实用评估方法[J].交通运输工程学报,2009,9(5):13-19. YAN Lei, LU Ying-zhao, HE Shuan-hai, et al. Practical evaluation method of component reliability for existing concrete bridge[J]. Journal of Traffic and Transportation Engineering, 2009, 9(5): 13-19.(in Chinese)
[8] VIGH A, KOLLAR L P. Routing and permitting techniques of overweight vehicles[J]. Journal of Bridge Engineering, 2007, 12(6): 774-784
[9] ZHANG Jian-ren, PENG Hui, CAI C S. Field study of overload behavior of an existing reinforced concrete bridge under simulated vehicle loads[J]. Journal of Bridge Engineering, 2011, 16(2): 226-237.
[10] HAUGEN T, LEVY J R, AAKRE E, et al. Weigh-in-motion equipment—experiences and challenges[J]. Transportation Research Procedia, 2016, 14: 1423-1432.
[11] YU Yang, CAI C S, DENG Lu. State-of-the-art review on bridge weigh-in-motion technology[J]. Advances in Structural Engineering, 2016, 19(9): 1514-1530.
[12] CONNOR A O, ENEVOLDSEN I. Probability based modeling and assessment of an existing post-tensioned concrete slab bridge[J]. Engineering Structures, 2008, 30(5): 1408-1416.
[13] MEI G, QIN Q, LIN D J. Bimodal renewal processes models of highway vehicle loads[J]. Reliability Engineering and System Safety, 2004, 83(3): 333-339.
[14] GUO T, FRANGOPOL D M, CHEN Y W. Fatigue reliability assessment of steel bridge details integrating weigh-in- motion data and probabilistic finite element analysis[J]. Computers and Structures, 2012, 112-113, 245-257.
[15] 阮 欣,周可攀,周军勇.某八车道高速公路车流特性及荷载效应[J].同济大学学报:自然科学版,2015,43(4):555-561. RUAN Xin, ZHOU Ke-pan, ZHOU Jun-yong. Vehicle flow characteristics and load effect of a eight-lane highway[J]. Journal of Tongji University: Natural Science, 2015, 43(4): 555-561.(in Chinese)
[16] OBRIEN E J, ENRIGHT B, GETACHEW A. Importance of the tail in truck weight modeling for bridge Assessment[J]. Journal of Bridge Engineering, 2010, 15(2): 210-213.
[17] 赵士良,韩万水,鲁永飞,等.重载交通条件下装配式RC板桥抗裂性分析[J].建筑科学与工程学报,2015,32(4):73-79. ZHAO Shi-liang, HAN Wan-shui, LU Yong-fe, et al. Crack resistance analysis on prefabricated RC slab bridge under heavy traffic[J]. Journal of Architecture and Civil Engineering, 2015, 32(4): 73-79.(in Chinese)
[18] ROSCHKE P N, PRUSKI K R. Overload and ultimate load behavior of posttensioned slab bridge[J]. Journal of Bridge Engineering, 2000, 5(2): 148-155.
[19] 韩万水,王 涛,李永庆,等.基于模型修正梁格法的车桥耦合振动分析系统[J].中国公路学报,2011,24(3):47-55. HAN Wan-shui, WANG Tao, LI Yong-qing, et al. Analysis system of vehicle-bridge coupling vibration with grillage method based on model updating[J]. China Journal of Highway Transport, 2011, 24(3): 47-55.(in Chinese)
[20] HAN Wan-shui, WU Jun, CAI C S, et al. Characteristics and dynamic impact of overloaded extra heavy trucks on typical highway bridges[J]. Journal of Bridge Engineering, 2015, 20(2): 1-11.
[21] HAN Wan-shui, YUAN Yang-guang, HUANG Ping-ming, et al. Dynamic impact of heavy traffic load on typical T-beam bridges based on WIM data[J]. Journal of Performance of Constructed Facilities, 2017, 31(3): 1-14.
[22] 韩万水,闫君媛,武 隽,等.基于长期监测的特重车交通荷载特性及动态过桥分析[J].中国公路学报,2014,27(2):54-61. HAN Wan-shui, YAN Jun-yuan, WU Jun, et al. Extra-heavy truck load features and bridge dynamic response based on long-term traffic monitoring record[J]. China Journal of Highway and Transport, 2014, 27(2): 54-61.(in Chinese)
[23] 阮 欣,周小燚,郭 济.基于合成车流的桥梁车辆荷载效应极值预测[J].同济大学学报:自然科学版,2012,40(10):1458-1462. RUAN Xin, ZHOU Xiao-yi, GUO Ji. Extreme valueextrapolation for bridge vehicle load effect based on synthetic vehicle flow[J]. Journal of Tongji University: Natural Science, 2012, 40(10): 1458-1462.(in Chinese)
[24] YUAN Yang-guang, HAN Wan-shui, HUANG Ping-ming, et al. Structure safety assessment under heavy traffic based on weigh in motion and simulation analysis[J]. Advances in Structural Engineering, 2017, DOI: 10.1177/13694332- 17695623.
[25] 袁 明,余钱华,颜东煌,等.基于车-桥系统耦合振动理论的大跨PC连续刚构桥冲击系数研究[J].中国公路学报,2008,21(1):72 -76. YUAN Ming, YU Qian-hua, YAN Dong-huang, et al.Research on impact coefficient for PC continuous rigid frame bridges with long-span under theory of vehicle-bridge system coupling vibration[J]. China Journal of Highway and Transport, 2008, 21(1): 72-76.(in Chinese)

Memo

Memo:
-
Last Update: 2017-08-05