Please wait a minute...
浙江大学学报(工学版)
JOURNAL OF ZHEJIANG UNIVERSITY (ENGINEERING SCIENCE)
    
Fatigue damage analysis on simple supported bridge under overloading
LIU Yang, ZHANG Hai ping, DENG Yang, Li Ming
School of Civil Engineering and Architecture,Changsha University of Science and Technology,Changsha 410010,China
Download:   PDF(1205KB) HTML
Export: BibTeX | EndNote (RIS)      

Abstract  

Vehicle axle weight was calculated  by the method of  stiffening bar in order to analyze the simple supported bridges fatigue damage under overloading. The equations for overload rate of vehicle and the fatigue damage value of simple supported beam were derived. The probability distribution of overloading was described by gaussian mixture model(GMM) .Vehicle overloading rate model was obtained by using the GMM method. On this basis, a new method of calculating the fatigue damage value for simple supported beam was proposed by reference to the relation between overloading rate and fatigue damage. Based on the system of the WIM traffic load statistics data, a prestressed simple supported beam bridge's month of fatigue damage value was calculated and the fatigue life was assessed in Yilu highway. The results show that there is exponential distribution functional relationship between overloading rate and simple supported beam's fatigue damage value. The vehicle overloading probability model presents  multi peak distribution. The damage value and fatigue life of simple supported beam are 5.8×10-6and 88 years respectively, with simple supported bridge in Yilu highway for example．
Key words: 

Published: 01 November 2015
CLC:  U 448.25  
Service
E-mail this article
Add to my bookshelf
Add to citation manager
E-mail Alert
RSS
Articles by authors
Cite this article:

LIU Yang, ZHANG Hai ping, DENG Yang, Li Ming. Fatigue damage analysis on simple supported bridge under overloading. JOURNAL OF ZHEJIANG UNIVERSITY (ENGINEERING SCIENCE), 2015, 49(11): 2172-2178.

URL:

http://www.zjujournals.com/eng/10.3785/j.issn.1008 973X.2015.11.019     OR     http://www.zjujournals.com/eng/Y2015/V49/I11/2172


考虑车辆超载的公路简支梁桥疲劳性能

为了分析车辆超载运营对公路梁桥疲劳损伤的影响，运用刚性梁法对统计车辆进行轴重分配计算.推导车辆超载率与简支梁桥的疲劳损伤值的关系.运用高斯混合模型(GMM)描述车辆超载运营荷载概率分布,得到车辆超载运营的概率统计模型.在该基础上,结合车辆超载率与简支梁桥疲劳损伤关系式和车辆超载概率模型,提出针对车辆荷载作用下简支梁桥疲劳损伤计算方法.基于WIM系统统计数据对宜泸高速某预应力简支梁桥进行为期一月的疲劳损伤累积计算并对该桥的疲劳寿命进行了评估.分析表明：车辆超载率与简支梁疲劳损伤值程指数函数关系,车辆超载率概率模型呈多峰分布,以宜泸高速某简支梁桥为例,月疲劳损伤值和疲劳寿命分别为5.8×10-6和88 a.

[1]  宗雪梅,胡大琳,高军.桥梁超重荷载与限载标准的确定[J].长安大学学报:自然科学版, 2008, 28(1): 60-65.
ZONG Xue mei, HU Da lin, GAO Jun. Vehicle’s overloadand limiting load standard for bridge safety [J]. Journal of Chang’an University：Science and Technology, 2008, 28(1): 60-65.
[2] 梅刚, 秦权, 林道锦.公路桥梁车辆荷载的双峰分布概率模型[J].清华大学学报:自然科学版, 2003, 43(10): 1394-1396.
 MEI Gang, QIN Quan, LIN Dao jin. Bi modal probabilistic model of highway and bridge vehicle loads [J]. Tsinghua University：Science and Technology, 2003, 43 (10) :1394-1396.
[3] 贡金鑫, 李文杰, 赵君黎, 等. 公路桥梁车辆荷载概率模型研究(一)——非治超地区[J]. 公路交通科技, 2010, 27(6): 40-45.
GONG Jin xin, LI Wen jie, ZHAO Jun li, et al. Research on probabilistic model of high  way bridge vehicle loads (1)—non  controlling area [J].Journal of Highway and Transportation Research and Development, 2010, 27(6): 40-45.
 [4] 贡金鑫, 李文杰, 赵君黎, 等. 公路桥梁车辆荷载概率模型研究(二)——计重收费地区和强制治超地区[J]. 公路交通科技, 2010, 27(7):56-60.
GONG Jin xin, LI Wen jie, ZHAO Jun li et al. Research on probabilistic model of high way bridge vehicle loads (2)—controlling Area [J]. Journal of Highway and Transportation Research and Development，2010, 27(6): 40-45.
[5] 郭彤, 李爱群, 赵大亮. 用于公路桥梁可靠性评估的车辆荷载多峰分布概率模型[J].东南大学学报: 自然科学版, 2008, 38(5): 763-766.
 GUO Tong, LI Ai qun, ZHAO Da liang. Multiple –peaked probabilistic vehicle load model for highway bridge reliability assessment [J]. Journal of Southeast University：Science and Technology,2008, 38(5): 763-766.
[6] GU Y, LI S, LIH, et al. A novel Bayesian extreme value distribution model of vehicle loads incorporating de correlated tail fitting: Theory and application to the Nanjing 3rd Yangtze River Bridge[J]. Engineering Structures, 2014, 59: 386-392.
[7] MIAO T J, CHANT H T. Bridge live load models from WIM  data[J]. Engineering  Structures, 2002, 24(8): 1071-1084.
[8] ZHANG J, PENG H, CAI C S. Field study of overload behavior of an existing reinforced concrete bridge under simulated vehicle loads[J]. Journal of Bridge Engineering, 2010, 16(2): 226-237.
[9] VIGH A, KOLLAR L P. Approximate analysis of bridges for the routing and permitting procedures of overweight vehicles[J]. Journal of Bridge Engineering, 2006, 11(3): 282-292.
[10] 孙晓燕, 王海龙. 超载运营下服役钢筋混凝土桥梁疲劳损伤研究[J]. 应用基础与工程科学学报, 2008, 16(5): 733-740.
SUN Xiao yan, WANG Hai Long. Fatigue damage anlysis on esting reinforced Concrete bridge under overloading [J]. Journel of Basic Science and Engineering, 2008, 16(5): 733-740.
 [11] WILSON R G. Multiresolution Gaussian mixture models: theory and application[J]. Computer Science and Repository,2000.
[12] NG H K T, CHAN P S, BALAKRISHNAN N. Estimation of parameters from progressively censored data using EM algorithm[J]. Computational Statistics & Data Analysis, 2002, 39(4): 371-386.
[13] 王兴东, 杨波, 邹光明. 多轴汽车轴荷分配和转移的计算方法研究[J]. 湖北工业大学学报, 2006, 21(3): 165-167.
WANG Xing dong, YANG Bo, ZOU Guang ming,Comuting methods for distribution and transfer of multi axle vehicles vertical axle Loads[J]. Journal of Hubei University of Technology,2006, 21(3): 165-167.
[14] GUO T, FRANGOPOL D M, CHEN Y. Fatigue reliability assessment of steel bridge details integrating weigh in motion data and probabilistic finite element analysis [J]. Computers & Structures, 2012, 112: 245-257.
[15] 孙守旺, 孙利民. 基于实测的公路桥梁车辆荷载统计模型[J]. 同济大学学报: 自然科学版, 2012, 40(2): 198-204.
SUN Shou wang. SUN Li min. Statistic model of vehicle loads for highway bridges [J]. Journal of Tong Ji University：Science and Technology，2012，40(2)：198-204.
[16] 龙驭球.结构力学[M].北京:高等教育出版社,1994:254-427.
[17] 曾志斌，李之榕. 普通混凝土梁用钢筋的疲劳S N曲线研究[J].土木工程学报，1999，32(5): 10-14.
ZENG Zhi bin, LI Zhi rong. Research on fatigue S N curves of reinforcing bars in common reinforced concrete beams [J]．China Civil Engineering Journal，1999，32(5) : 10-14．
 [18] 王春生, 周江, 吴全有, 等. 既有混凝土桥梁疲劳寿命与使用安全评估[J]. 中国公路学报, 2012, 25(6): 101-107.
WANG Chun sheng, ZHOU Jiang, WU Quan you, et al. Fatigue life and service safety assessment for existing concrete bridges [J].China Journal of Highway and Transport, 2012,25(6):101-107.
[1] LU Nai wei, LUO Yuan, WANG Qin yong, Noori Mohammad. Dynamic reliability assessment for long-span bridges under vehicle load[J]. JOURNAL OF ZHEJIANG UNIVERSITY (ENGINEERING SCIENCE), 2016, 50(12): 2328-2335.