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Fatigue analysis and life prediction of bridges with structural health monitoring data - Part I: Methodology and strategy

机译：具有结构健康监测数据的桥梁疲劳分析和寿命预测-第一部分：方法和策略

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This paper is aimed at developing a methodology and strategy for fatigue damage assessment and life prediction of bridge-deck sections of existing bridges with online structural health monitoring data. A fatigue damage model based on the continuum damage mechanics (CDM) is developed for evaluating accumulative fatigue damage of existing bridges. A structural model for the fatigue stress analysis of bridge-deck structures is proposed, in which structures are modeled by elastic members and welded connections with possible accumulative damage. Based on the proposed model, an analytical approach for evaluating the fatigue damage and service life of bridge-deck sections based on strain history data from an online structural health monitoring system and the CDM fatigue model are suggested. The updating of the representative block of cycles of the local stress by online monitoring data in the future is included in the computational approach. In order to compare results of fatigue damage and service life prediction evaluated by the CDM fatigue damage model, a modified Palmgren-Miner rule is developed for the same fatigue problem.

机译：本文旨在利用在线结构健康监测数据，开发现有桥梁桥面断面的疲劳损伤评估和寿命预测的方法和策略。建立了基于连续损伤力学（CDM）的疲劳损伤模型，用于评估现有桥梁的累积疲劳损伤。提出了一种桥面结构疲劳应力分析的结构模型，该模型通过弹性构件和焊接连接对结构进行建模，并可能产生累积损伤。基于提出的模型，提出了一种基于在线结构健康监测系统的应变历史数据和CDM疲劳模型来评估桥面断面的疲劳损伤和使用寿命的分析方法。计算方法中包括将来通过在线监视数据更新局部应力周期的代表性循环块。为了比较CDM疲劳损伤模型评估的疲劳损伤结果和使用寿命预测，针对相同的疲劳问题开发了改进的Palmgren-Miner规则。

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Li ZX; Chan THT; Ko JM;
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年度 2001
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正文语种 eng
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1. Fatigue analysis and life prediction of bridges with structural health monitoring data -- Part If methodology and strategy [J] . Z.X. Li, T.H.T. Chan, J.M. Ko International Journal of Fatigue . 2001,第1期

机译：具有结构健康监测数据的桥梁疲劳分析和寿命预测-部分方法和策略
2. Fatigue analysis and life prediction of bridges with structural health monitoring data -- Part II: application [J] . T.H.T. Chan, Z.X. Li, J.M. Ko International Journal of Fatigue . 2001,第1期

机译：具有结构健康监测数据的桥梁疲劳分析和寿命预测-第二部分：应用
3. Statistical analysis of stress spectra for fatigue life assessment of steel bridges with structural health monitoring data [J] . X.W. Ye, Y.Q. Ni, K.Y. Wong, Engineering Structures . 2012,第DECa期

机译：基于结构健康监测数据的钢桥疲劳寿命评估应力谱统计分析
4. Fatigue Life Prediction Using Hybrid Prognosis for Structural Health Monitoring [C] . Rajesh Kumar Neerukatti, Kuang C. Liu, Yingtao Liu, AIAA infotech@aerospace conference and exhibit . 2012

机译：基于混合预后的结构寿命监测疲劳寿命预测
5. Computational life prediction methodology for mechanical systems using dynamic simulation, finite element analysis, and fatigue life prediction methods. [D] . Baek, Woon Kyung. 1990

机译：机械系统的计算寿命预测方法，使用动态仿真，有限元分析和疲劳寿命预测方法。
6. An Integrated Health Monitoring Method for Structural Fatigue Life Evaluation Using Limited Sensor Data [O] . Jingjing He, Yibin Zhou, Xuefei Guan, 2016

机译：基于有限传感器数据的结构疲劳寿命评估的综合健康监测方法
7. Fatigue analysis and life prediction of bridges with structural health monitoring data - Part II : application [O] . Chan THT, Li ZX, Ko JM 2001

机译：具有结构健康监测数据的桥梁疲劳分析和寿命预测第二部分：应用
8. Long-Term Structural Performance Monitoring of Bridges Phase II: Development of Baseline Model and Methodology for Health Monitoring and Damage Assessment [R] . Feng, M. Q., Fukuda, Y., Chen, Y., 2008

机译：桥梁的长期结构性能监测第二阶段：健康监测和损害评估的基线模型和方法的发展

Fatigue analysis and life prediction of bridges with structural health monitoring data - Part I: Methodology and strategy

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