使用精确的3D道路表面分析进行车辆-桥梁交互建模
Maja Kreslin1, Peter Češarek2, Aleš Žnidarič1
1Department of Structures, Slovenian National Building and Civil Engineering Institute, Dimičeva ulica 12, 1000 Ljubljana, Slovenia.
Sensors (Basel, Switzerland)
|January 26, 2024
概括
本研究介绍了一种测量3D路面和模拟车辆与桥梁相互作用的方法. 这有助于提高桥梁运动称重 (B-WIM) 系统的准确性,因为它会考虑道路的不均性.
科学领域:
- 土木工程 土木工程是指土木工程.
- 结构动力学 结构动力学
- 运输工程 运输工程
背景情况:
- 道路表面的不规则会对车辆与桥梁的动态相互作用产生重大影响.
- 这些道路不均是桥梁运动称重系统 (B-WIM) 错误的主要原因.
- 准确的建模需要对道路表面特征有精确的了解.
研究的目的:
- 开发一种用于测量3D路面的方法.
- 创建一个数值模型,模拟车辆通过桥梁,并测量路面.
- 分析影响B-WIM系统准确性的因素,特别是道路不均.
主要方法:
- 利用静态地面激光扫描进行3D路面测量.
- 开发了一个数值模型来模拟车辆与桥梁的动态相互作用.
- 评估了考虑各种参数 (车辆类型,速度,路面,桥梁类型) 的时间域应变反应.
主要成果:
- 成功模拟了车辆通过一座桥,并测量了道路表面.
- 该模型允许在任何桥梁位置评估时间域应变反应.
- 在真实桥上的初步验证显示了模拟和测量桥响应之间的有希望的一致性.
结论:
- 拟议的方法提供了一个强大的方法来理解道路表面对B-WIM的影响.
- 这有助于对影响B-WIM准确性的因素进行详细分析.
- 对道路不平坦对B-WIM系统的影响进行进一步调查是有必要的.
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