Developing a benchmark study for bridge monitoring

IF 1.2 Q3 CONSTRUCTION & BUILDING TECHNOLOGY
Yogi Jaelani, Alina Klemm, Johannes Wimmer, Fabian Seitz, Martin Köhncke, F. Marsili, A. Mendler, Max von Danwitz, S. Henke, Max Gündel, T. Braml, Max Spannaus, Alexander Popp, Sylvia Keßler
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引用次数: 0

Abstract

Structural health monitoring is the process of implementing a continuous damage detection strategy to optimize the inspection and maintenance schedules of bridges, and extend their lifespans. One of the main challenges of automated damage detection is the lack of data on damaged states, which makes it difficult to validate new approaches in the research and development stage. To alleviate this problem, a monitoring campaign on a two‐span test bridge with defined defects is conducted and documented in this article. The bridge is a steel‐concrete composite structure with a length of 30 m, with two primary steel girders and a segmented concrete deck. The recorded data capture the long‐term ambient data from 18 test days and changing environmental conditions, as well as the short‐term ambient data and dynamic load tests from four damage scenarios with well‐defined damage extents. A mobile measurement system with numerous sensors is used for data acquisition. A shaker is placed on the bridge to excite white noise. The main goal of this article is to document the experimental procedure and perform preliminary plausibility checks on the measured data. First results demonstrate that system response data and environmental conditions are recorded reliably and that environmental effects significantly affect the long‐term measurements. Therefore, a suitable data set is provided as open‐source data for future studies on data normalization and automated damage detection.
开展桥梁监测基准研究
结构健康监测是实施连续损伤检测策略的过程,以优化桥梁的检查和维护时间表,并延长其寿命。自动损伤检测的主要挑战之一是缺乏损伤状态的数据,这使得在研发阶段很难验证新方法。为了缓解这一问题,本文对一座具有确定缺陷的两跨试验桥进行了监测,并对其进行了记录。该桥为钢-混凝土组合结构,长度为30 m、 具有两个主钢梁和一个分段混凝土桥面。记录的数据捕捉了18个测试日和不断变化的环境条件下的长期环境数据,以及四个损伤场景下的短期环境数据和动态载荷测试,这些损伤场景具有明确的损伤程度。具有许多传感器的移动测量系统用于数据采集。在桥上放置了一个振动器来激发白噪音。本文的主要目标是记录实验程序,并对测量数据进行初步的合理性检查。首次结果表明,系统响应数据和环境条件记录可靠,环境影响对长期测量有显著影响。因此,提供了一个合适的数据集作为开源数据,用于未来的数据归一化和自动损伤检测研究。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
Steel Construction-Design and Research
Steel Construction-Design and Research CONSTRUCTION & BUILDING TECHNOLOGY-
CiteScore
3.00
自引率
6.20%
发文量
63
期刊介绍: Steel Construction publishes peerreviewed papers covering the entire field of steel construction research. In the interests of "construction without depletion", it skilfully combines steel with other forms of construction employing concrete, glass, cables and membranes to form integrated steelwork systems. Since 2010 Steel Construction is the official journal for ECCS- European Convention for Constructional Steelwork members. You will find more information about membership on the ECCS homepage. Topics include: -Design and construction of structures -Methods of analysis and calculation -Experimental and theoretical research projects and results -Composite construction -Steel buildings and bridges -Cable and membrane structures -Structural glazing -Masts and towers -Vessels, cranes and hydraulic engineering structures -Fire protection -Lightweight structures
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