|本期目录/Table of Contents|

[1]管国东,翟慕赛,张培杰,等.混凝土矮箱梁桥疲劳性能监测与评估[J].建筑科学与工程学报,2015,32(04):99-104.
　GUAN Guo-dong,ZHAI Mu-sai,ZHANG Pei-jie,et al.Fatigue Performance Monitoring and Assessment for Concrete Low-box Girder Bridge[J].Journal of Architecture and Civil Engineering,2015,32(04):99-104.
点击复制

混凝土矮箱梁桥疲劳性能监测与评估(PDF)
分享到：

《建筑科学与工程学报》[ISSN:1673-2049/CN:61-1442/TU]

卷:
32卷
期数:
2015年04期
页码:
99-104
栏目:
出版日期:
2015-07-21

文章信息/Info

Title:
Fatigue Performance Monitoring and Assessment for Concrete Low-box Girder Bridge
作者:
管国东，翟慕赛，张培杰，王春生
西安公路研究院
Author(s):
GUAN Guo-dong, ZHAI Mu-sai, ZHANG Pei-jie , WANG Chun-sheng
Xi’an Highway Research Institute
关键词:
混凝土矮箱梁桥; 疲劳性能; 运营监测; 交通荷载; 超载
Keywords:
concrete low-box girder bridge;  fatigue performance;  service monitoring;  traffic load;  overload
分类号:
-
DOI:
-
文献标志码:
A
摘要:
采用动态称重(WIM)技术对陕西省省道S305线崾岘中桥进行交通荷载监测，分析得出了适合陕西省混凝土桥梁的标准疲劳车模型。采用动应变监测技术对混凝土矮箱梁关键部位进行长期动应变监测，获得了运营状态下混凝土矮箱梁的实测应力谱；运用Miner线性准则和应力幅循环次数曲线对结构进行疲劳寿命评估；对超载情况下混凝土矮箱梁的疲劳寿命进行了分析。结果表明：在目前交通荷载作用下，混凝土矮箱梁的疲劳寿命为5 120年，考虑腐蚀疲劳的因素后疲劳寿命降至254年；当超载车辆比例低于1%时，超载对桥梁结构的疲劳寿命影响很小；当超载车辆比例达到10%时，结构的疲劳寿命随着超载率的提高而显著降低；该研究成果可为崾岘中桥未来维护管理提供技术支撑，同时为同类型其他桥梁的疲劳寿命评估提供参考。
Abstract:
Weigh-in-motion (WIM) system was adopted to monitor the fatigue loads of Yaoxian medium bridge in Shaanxi provincial road S305, and standard fatigue vehicle model for concrete bridges in Shaanxi province was determined based on recorded data. Dynamic strain monitoring technique was adopted to conduct continuous strain monitoring of key positions on concrete lowbox girder, acquiring the real stress spectrum under service situation. Moreover, the fatigue life assessment of structures was carried out by using Miner linear criterion and stress amplitudecycle number curve. The results show that the fatigue life of concrete lowbox birder is 5 120 years under the present traffic load, and the fatigue life decreases to 254 years when taking into consideration of fatigue corrosion. Under overload situation, when the ratio of overload vehicle belows 1%, the influence is little; when the ratio reaches 10%, the fatigue life of structures will decrease sharply with increasing of the overload ratio. Research achievement can provide technical support for the future management and maintenance of Yaoxian medium bridge, and provide reference for fatigue life assessment of other similar bridges.

参考文献/References:

相似文献/References:

[1]王连华,丁秉昊,李立峰.斜拉桥锚拉板足尺模型疲劳试验[J].建筑科学与工程学报,2016,33(05):50.
　WANG Lian-hua,DING Bing-hao,LI Li-feng.Fatigue Test of Full-scale Model of Tensile Anchor Plate in Cable-stayed Bridge[J].Journal of Architecture and Civil Engineering,2016,33(04):50.
[2]杨 鸥,张晓非,霍静思,等.预应力混凝土梁疲劳性能研究现状[J].建筑科学与工程学报,2017,34(04):85.
　YANG Ou,ZHANG Xiao-fei,HUO Jing-si,et al.Research Status of Fatigue Performance of Prestressed Concrete Beam[J].Journal of Architecture and Civil Engineering,2017,34(04):85.
[3]刘永健,姜 磊,王康宁.焊接管节点疲劳研究综述[J].建筑科学与工程学报,2017,34(05):1.
　LIU Yong-jian,JIANG Lei,WANG Kang-ning.Review of Fatigue Behavior in Welded Tubular Joints[J].Journal of Architecture and Civil Engineering,2017,34(04):1.
[4]王志宇,张 涛,姜瑞娟,等.波形钢腹板-钢管混凝土翼缘组合梁桥疲劳性能的多尺度有限元分析[J].建筑科学与工程学报,2018,35(05):78.
　WANG Zhi-yu,ZHANG Tao,JIANG Rui-juan,et al.Multi-scale Finite Element Analysis of Fatigue Property Composite Girder Bridges with Corrugated Steel Webs and Concrete Filled Steel Tubes[J].Journal of Architecture and Civil Engineering,2018,35(04):78.
[5]潘永祥,吴方伯,蒋 文,等.装配整体式双向密肋空心板疲劳性能分析[J].建筑科学与工程学报,2018,35(05):109.
　PAN Yong-xiang,WU Fang-bo,JIANG Wen,et al.Analysis on Fatigue Performance of Assembled Monolithic Hollow-ribbed Slabs[J].Journal of Architecture and Civil Engineering,2018,35(04):109.
[6]刘 晖,查启斌,王雪亮.武汉体育中心游泳馆屋顶网架结构风致疲劳性能分析[J].建筑科学与工程学报,2018,35(06):50.
　LIU Hui,ZHA Qi-bin,WANG Xue-liang.Wind-induced Fatigue Performance Analysis of Roof Gird Structure of Natatorium in Wuhan Sports Center[J].Journal of Architecture and Civil Engineering,2018,35(04):50.

备注/Memo

备注/Memo:
更新日期/Last Update: 2015-07-21