[1]秦世强,黄春雷,张佳斌,等.基于应力监测的钢-UHPC组合桥面和环氧沥青钢桥面疲劳性能对比[J].东南大学学报(自然科学版),2021,(1):61-70.[doi:10.3969/j.issn.1001-0505.2021.01.009]
　Qin Shiqiang,Huang Chunlei,Zhang Jiabin,et al.Comparison of fatigue performance between steel-UHPC composite deck and epoxy asphalt steel deck based on stress monitoring[J].Journal of Southeast University (Natural Science Edition),2021,(1):61-70.[doi:10.3969/j.issn.1001-0505.2021.01.009]
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基于应力监测的钢-UHPC组合桥面和环氧沥青钢桥面疲劳性能对比()
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《东南大学学报(自然科学版)》[ISSN:1001-0505/CN:32-1178/N]

卷:
期数:
2021年第1期
页码:
61-70
栏目:
交通运输工程
出版日期:
2021-01-20

文章信息/Info

Title:
Comparison of fatigue performance between steel-UHPC composite deck and epoxy asphalt steel deck based on stress monitoring
作者:
秦世强1; 黄春雷1; 张佳斌1; 高立强2; 3
1 武汉理工大学土木工程与建筑学院, 武汉 430070; 2 中铁大桥科学研究院有限公司, 武汉 430034; 3 中铁大桥局集团有限公司桥梁结构健康与安全国家重点实验室, 武汉 430034
Author(s):
Qin Shiqiang1;  Huang Chunlei1;  Zhang Jiabin1;  Gao Liqiang 2; 3
1School of Civil Engineering and Architecture, Wuhan University of Technology, Wuhan 430070, China
1China Railway Bridge Science Research Institute Co., Ltd., Wuhan 430034, China
1State Key Laboratory for Health and Safety of Bridge Structures, China Railway Major Bridge Engineering Group Co., Ltd., Wuhan 430034, China
关键词:
桥梁工程;  正交异性桥面板;  钢-UHPC组合桥面;  疲劳评估;  应力监测
Keywords:
bridge engineering;  orthotropic steel deck;  steel-UHPC(ultra-high performance concrete)composite deck;  fatigue assessment;  stress monitoring
分类号:
U443.31
DOI:
10.3969/j.issn.1001-0505.2021.01.009
摘要:
为评估不同桥面加固方案对正交异性桥面板疲劳性能的改善情况,对比了钢-UHPC组合桥面和环氧沥青桥面铺装的桥梁疲劳性能.基于连续一周的应力时程数据,采用线性累积损伤准则计算了各疲劳易损细节的最大应力幅、等效应力幅和疲劳剩余寿命.建立有限元模型,对2种方案加固后的桥面刚度进行了定量对比,分析了车流量及温度变化对疲劳易损细节疲劳寿命的影响.结果表明:钢-UHPC组合桥面在各疲劳易损细节的最大应力幅和等效应力幅均小于ERE铺装桥面;除疲劳寿命为无穷大的疲劳易损细节外,钢-UHPC组合桥面疲劳易损细节疲劳寿命均大于ERE铺装桥面;钢-UHPC组合桥面拥有更大的抗弯刚度,钢-UHPC桥面板最大挠度为ERE铺装桥面的67.29%;车流量增多对2种方案加固后桥面疲劳易损细节疲劳寿命的影响基本一致,钢-UHPC组合桥面抗高温性能更好.
Abstract:
To evaluate the improvement of the fatigue performance of orthotropic steel deck by different reinforcement schemes, the fatigue performance of the OSD(orthotropic steel deck)reinforced by steel-UHPC(ultra-high performance concrete)and ERE(epoxy bond chips layer, resin asphalt and epoxy bond chips layer)were compared. Based on the data of stress records for a continuous week, the maximum stress amplitude, the equivalent stress amplitude, and the residual fatigue life of each fatigue-prone detail were calculated by the linear cumulative rule. A finite element model was established to quantitatively compare the stiffness of the two strengthening schemes. The influence of traffic flow and temperature change on the fatigue life of fatigue-prone details was analyzed. The results show that the maximum stress amplitude and the equivalent stress amplitude of each fatigue-prone detail of the steel-UHPC composite bridge deck are smaller than those of the ERE pavement bridge deck. The fatigue life of each fatigue-prone detail of the steel-UHPC composite bridge deck is greater than that of the ERE pavement bridge deck except for fatigue-prone details with infinite fatigue life. The steel-UHPC composite bridge deck has greater bending stiffness, and the maximum deflection of the steel-UHPC deck is 67.29% of that of the ERE pavement bridge deck. The influences of the flow rate increase on the fatigue life of each fatigue-prone detail of the bridge deck reinforced by two reinforcement schemes are basically the same, and the steel-UHPC composite deck has better high temperature resistance.

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备注/Memo

备注/Memo:
收稿日期: 2020-07-01.
作者简介: 秦世强(1987—),男,博士,副教授,shiqiangqin@whut.edu.cn.
基金项目: 国家自然科学基金资助项目(51608408)、中央高校基本科研业务费专项资金资助项目(2017IVB046).
引用本文: 秦世强,黄春雷,张佳斌,等.基于应力监测的钢-UHPC组合桥面和环氧沥青钢桥面疲劳性能对比[J].东南大学学报(自然科学版),2021,51(1):61-70. DOI:10.3969/j.issn.1001-0505.2021.01.009.
更新日期/Last Update: 2021-01-20