基于北斗卫星导航系统的长轴钢结构结构健康监测
Hui Gao1, Baoxin Jia2, Guochuan Wang3
1School of Civil Engineering, Liaoning Technical University, Fuxin 123000, China.
Sensors (Basel, Switzerland)
|July 14, 2023
概括
北斗导航卫星系统 (BDS) 为土木工程中的结构健康监测 (SHM) 提供了精确的定位. 一个案例研究表明,BDS在施工过程中有效监控长跨钢结构.
科学领域:
- 土木工程 土木工程是指土木工程.
- 地理学工程 工程地质学
- 结构健康监测 结构健康监测
背景情况:
- 使用卫星导航的结构健康监测 (SHM) 在土木工程中尚未得到充分探索.
- 在现实世界的项目中,BeiDou导航卫星系统 (BDS) 对SHM的应用需要进一步调查.
- 整合BDS与其他技术进行全面的SHM尚未完全理解.
研究的目的:
- 提出和评估一种基于BDS的新方法,用于在土木工程应用中的SHM.
- 在大型建筑项目中调查BDS对SHM任务的实际实施.
- 评估BDS在监控长跨钢结构中的性能.
主要方法:
- 为基于BDS的SHM量身定制的特定天汉系统的开发.
- 在天汉大剧院 (TGT) 建设阶段部署基于BDS的SHM系统进行数据收集.
- 分析收集的BDS数据,以识别移位和应力最大的托架.
主要成果:
- 基于BDS的方法成功地确定了基于移位和压力的关键结构元素.
- 评估的结构参数显示了足够的安全储备,符合相关规格.
- 该系统证实了BDS在长跨度钢结构中执行SHM任务的能力.
结论:
- 提出的基于BDS的SHM方法对于在施工期间监测长跨度钢结构是有效的.
- 这项研究提供了实用的见解和一个有价值的案例研究,用于在结构工程中应用BDS.
- BDS可可靠地用于精确的SHM,提高土木工程项目的安全性和效率.
相关概念视频
Design Example: Identifying the Locations of Monuments in the Field Using Global Positioning System Device
82
Surveyors use Global Positioning System (GPS) technology to measure the precise location and elevation of points on Earth. In a recent survey, GPS receivers were used to determine the coordinates and elevations of two park monuments. The process involved careful mission planning, data collection, and correction to ensure accuracy. The survey began with mission planning to identify optimal satellite visibility and minimize Position Dilution of Precision (PDOP). A geodetic control point...
82
Deformation of a Beam under Transverse Loading
336
Understanding beam deflection, particularly for indeterminate beams with overhanging segments and multiple concentrated loads, is crucial for ensuring structural integrity and functionality. The process begins with constructing an accurate free-body diagram, which helps identify the forces and moments acting on the beam. This diagram is vital for visualizing how bending moments vary along the beam's length, influencing its curvature.
The insights from the bending moment diagram extend to...
The insights from the bending moment diagram extend to...
336
Beams with Unsymmetric Loadings
143
Analyzing a supported beam under unsymmetrical loadings is essential in structural engineering to understand how beams respond to varied force distributions. This analysis involves calculating the deflection and identifying points where the slope of the beam is zero, which are crucial for ensuring structural stability and functionality.
The first moment-area theorem determines the slope at any point on the beam. This theorem indicates that the change in slope between two points on a beam...
The first moment-area theorem determines the slope at any point on the beam. This theorem indicates that the change in slope between two points on a beam...
143
Types of Global Positioning System Surveys
81
GPS surveying methods vary in application, accuracy, and data collection techniques, catering to diverse surveying and mapping needs. Static GPS, kinematic GPS, and real-time kinematic (RTK) surveying are widely used. Each technique offers distinct advantages.Static GPS involves placing one receiver at a known reference point and another at the target point. It collects exact positional data by observing multiple satellite ranges over an extended period, achieving centimeter-level accuracy for...
81
Beams
1.4K
Beams are integral components of structural engineering and construction, designed to support loads applied at various points along their length. These long, straight members can be classified based on geometry, cross-section, support type, and equilibrium condition.
Based on geometry, beams can be straight, tapered, or curved. Straight beams are the most common type and have a constant cross-section throughout their length. Tapered beams, on the other hand, have a varying cross-section along...
Based on geometry, beams can be straight, tapered, or curved. Straight beams are the most common type and have a constant cross-section throughout their length. Tapered beams, on the other hand, have a varying cross-section along...
1.4K
Indeterminate Structure
570
Indeterminate structures refer to structures where internal forces and reactions cannot be determined using only the equations of static equilibrium. Indeterminate structures have more unknown forces and reaction forces than equations of static equilibrium that can be used to determine them. Indeterminate structures are often used in engineering to create complex, efficient, and aesthetically pleasing structures. There are various types of indeterminate structures used in engineering and...
570


