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土木工程结构中扭转的直接观测与阵列推导旋转的比较

Comparing Direct Observation of Torsion with Array-Derived Rotation in Civil Engineering Structures.

作者信息

Guéguen Philippe, Guattari Frédéric, Aubert Coralie, Laudat Theo

机构信息

ISTerre, Université Grenoble Alpes, USMB, CNRS, IRD, Université Gustave Eiffel, 38058 Grenoble, France.

iXblue, 78100 Saint-Germain-en-Laye, France.

出版信息

Sensors (Basel). 2020 Dec 28;21(1):142. doi: 10.3390/s21010142.

DOI:10.3390/s21010142
PMID:33379301
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC7795451/
Abstract

In this article, we analyze the rotation rates in a building derived from a network of translation sensors and recorded by a rotation sensor. The building is Grenoble city hall, a reinforced concrete structure with permanent accelerometric translation sensors at the top and bottom of the building. A temporary experiment was conducted, consisting in installing a BlueSeis-3A rotation sensor for more than 24 h at the top of the structure. The ambient vibrations were analyzed. The amplitudes of translation accelerations and rotation rates at the top and bottom of the building, along with their variations over time, were analyzed. The acceleration/rotation ratios were then compared with the impulse wave velocities derived from seismic interferometry by deconvolution between the top and bottom. Perspectives with regard to building imaging, time monitoring of structural integrity and understanding the contribution of rotations to the structure's response are discussed, offering new suggestions for research projects.

摘要

在本文中，我们分析了由平移传感器网络得出并由旋转传感器记录的建筑物中的旋转速率。该建筑物是格勒诺布尔市政厅，是一座钢筋混凝土结构，在建筑物顶部和底部设有永久性加速度平移传感器。进行了一项临时实验，即在结构顶部安装一个BlueSeis - 3A旋转传感器超过24小时。分析了环境振动。分析了建筑物顶部和底部的平移加速度和旋转速率的幅值及其随时间的变化。然后将加速度/旋转比与通过顶部和底部之间的反卷积从地震干涉测量法得出的脉冲波速度进行比较。讨论了关于建筑物成像、结构完整性的时间监测以及理解旋转对结构响应的贡献的前景，为研究项目提供了新的建议。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/447e/7795451/e287990e3639/sensors-21-00142-g011.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/447e/7795451/02ceb61f3df2/sensors-21-00142-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/447e/7795451/97a35f392e01/sensors-21-00142-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/447e/7795451/3a29d33f8704/sensors-21-00142-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/447e/7795451/5175f70cc7f3/sensors-21-00142-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/447e/7795451/eac3e729e559/sensors-21-00142-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/447e/7795451/5565824358a3/sensors-21-00142-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/447e/7795451/0bddb4f7a9de/sensors-21-00142-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/447e/7795451/492337fbe711/sensors-21-00142-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/447e/7795451/e36ee5a581a4/sensors-21-00142-g009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/447e/7795451/97de35b668fd/sensors-21-00142-g010.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/447e/7795451/e287990e3639/sensors-21-00142-g011.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/447e/7795451/02ceb61f3df2/sensors-21-00142-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/447e/7795451/97a35f392e01/sensors-21-00142-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/447e/7795451/3a29d33f8704/sensors-21-00142-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/447e/7795451/5175f70cc7f3/sensors-21-00142-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/447e/7795451/eac3e729e559/sensors-21-00142-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/447e/7795451/5565824358a3/sensors-21-00142-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/447e/7795451/0bddb4f7a9de/sensors-21-00142-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/447e/7795451/492337fbe711/sensors-21-00142-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/447e/7795451/e36ee5a581a4/sensors-21-00142-g009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/447e/7795451/97de35b668fd/sensors-21-00142-g010.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/447e/7795451/e287990e3639/sensors-21-00142-g011.jpg

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本文引用的文献

1
Nonlinear dynamics induced in a structure by seismic and environmental loading.地震和环境荷载在结构中引发的非线性动力学。
J Acoust Soc Am. 2016 Jul;140(1):582. doi: 10.1121/1.4958990.
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Structural-change localization and monitoring through a perturbation-based inverse problem.基于扰动的反问题实现结构变化定位与监测
J Acoust Soc Am. 2014 Nov;136(5):2586-97. doi: 10.1121/1.4897403.
Sensors (Basel). 2021 Aug 7;21(16):5344. doi: 10.3390/s21165344.
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The Development of a New IFOG-Based 3C Rotational Seismometer.一种新型基于干涉型光纤陀螺仪的三分量旋转地震仪的研制。
Sensors (Basel). 2021 Jun 4;21(11):3899. doi: 10.3390/s21113899.