原文传递
Fatigue Life Assessment of Traffic-Signal Support Structures from an Analytical Approach and Long-Term Vibration Monitoring Data
| 题名： | Fatigue Life Assessment of Traffic-Signal Support Structures from an Analytical Approach and Long-Term Vibration Monitoring Data |
| 正文语种： | 英文 |
| 作者： | Jie Ding, S.M.ASCE; Xinzhong Chen, M.ASCE; Delong Zuo, M.ASCE;Jieying Hua, S.M.ASCE |
| 作者单位： | National Wind Institute, Texas Tech Univ |
| 关键词： | Vortex-induced vibration; Crosswind response; Field monitoring; Non-Gaussian response; Fatigue damage; Fatigue life; Traffic-signal support structures; Wind effects. |
| 摘要： | Wind-induced, large-amplitude vibrations of traffic-signal support structures are frequently observed. Such vibrations can result in a large number of stress cycles and substantial fatigue damage. This paper presents the characteristics of wind-induced vibration of a trafficsignal support structure observed in a long-term, full-scale measurement project, which are used as a basis to understand the vibration generation mechanism. Based on the measured structural response, conditional on mean wind speed, wind direction, and turbulence intensity, the fatigue damage is evaluated using a closed-form spectral method with consideration of narrowband, non-Gaussian response character-istics. The uncertainty in the structural response under given wind conditions is quantified and included in the fatigue damage evaluation. The effectiveness and accuracy of the proposed approach are illustrated by comparing the results of the spectral method with that from the timedomain rainflow counting method based on the long-term stress time histories. The core parameters that influence the fatigue damage analysis and fatigue life prediction of traffic-signal support structures are also examined through a parametric study. DOI: 10,1061/(ASCE)ST. 1943-541X.0001475. © 2016 American Society of Civil Engineers. |
| 出版日期： | 2016.06 |
| 出版年： | 2016 |
| 期刊名称： | Journal of Structural Engineering |
| 卷： | Vol.142 |
| 期： | NO.06 |
| 页码： | 04016017 |
相关文献
- Evaluation and augmentation of traffic data including Bluetooth detection system on arterials
- Take the 2018 Traffic Signal Benchmarking Self Assessment
- news from amey
- Data Set from Long-Term Wind and Acceleration Monitoring of the Hardanger Bridge
- Substructure Identification for an Axially Loaded Member Using Local Vibration Modes
- State Estimation for Prediction of Fatigue Life for a Rollercoaster Connection Subjected to Operational Multiaxial Nonproportional Loading
检索历史
应用推荐
