对长轴吊桥的风场参数的研究,考虑到甲板干扰效应
Yonghui Zuo1, Xiaoyu Bai2, Rujin Ma3
1School of Transportation, Southeast University, Nanjing 210096, China.
Sensors (Basel, Switzerland)
|November 13, 2025
概括
这项研究纠正了桥梁甲板造成的长跨式吊桥上的风力测量错误. 一个新的统计模型提高了这些结构的风载荷精度.
科学领域:
- 结构工程 结构工程
- 流体动力学 流体动力学
- 空气动力学 在空气动力学.
背景情况:
- 准确的风场数据对于长跨度吊桥的空气动力学稳定性和安全性至关重要.
- 桥甲板显著扰乱风力测量,导致结构分析中的潜在不准确性.
- 现有的方法往往忽略或不充分解决甲板引起的风力干扰.
研究的目的:
- 调查和量化桥梁甲板对风力测量的干扰影响.
- 开发一个统计模型来纠正甲板引起的风力测量偏差.
- 为了提高风力负荷评估对长跨度吊桥的准确性.
主要方法:
- 在桥梁梁的上游和下游两侧使用风力计收集现场数据.
- 对风力测量的比较分析,以确定甲板引起的差异.
- 开发和应用统计模型来隔离和纠正干扰组件.
主要成果:
- 确定并绘制了甲板引起的风力干扰的空间分布.
- 开发了一个统计模型来量化干扰的影响.
- 通过拟议的校正方法,有效地减少了测量偏差.
结论:
- 开发的统计模型准确地纠正了由桥甲板干扰引起的风力测量偏差.
- 精确的风场表征对于可靠的风力负荷评估在长跨度悬浮桥是必不可少的.
- 这些发现使得更精确的结构安全评估和桥梁设计优化成为可能.
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