Radar detection of pedestrian-induced vibrations on Michelangelo's David

被引：26

作者：

Pieraccini, Massimiliano ^{[1
]}

Betti, Michele ^{[2
]}

Forcellini, Davide ^{[3
]}

Dei, Devis ^{[4
]}

Papi, Federico ^{[1
]}

Bartoli, Gianni ^{[2
]}

Facchini, Luca ^{[2
]}

Corazzi, Riccardo ^{[2
]}

Kovacevic, Vladimir Cerisano ^{[2
]}

机构：

[1] Univ Florence, Dept Informat Engn DINFO, Florence, Italy

[2] Univ Florence, Dept Civil & Environm Engn DICEA, Florence, Italy

[3] Univ San Marino, San Marino, San Marino

[4] Florence Engn Srl, Florence, Italy

来源：

PLOS ONE | 2017年 / 12卷 / 04期

关键词：

INTERFEROMETRIC RADAR; IDENTIFICATION;

D O I：

10.1371/journal.pone.0174480

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

This paper summarizes the results of a two-day dynamic monitoring of Michelangelo's David subject to environmental loads (city traffic and pedestrian loading induced by tourists visiting the Accademia Gallery). The monitoring was carried out by a no-contact technique using an interferometric radar, whose effectiveness in measuring the resonant frequencies of structures and historic monuments has proved over the last years through numerous monitoring activities. Owing to the dynamic behavior of the measurement system (radar and tripod), an accelerometer has been installed on the radar head to filter out the movement component of the measuring instrument from the measurement of the David's displacement. Measurements were carried out in the presence and absence of visitors, to assess their influence on the dynamic behavior of the statue. A numerical model of the statue was employed to evaluate the experimental results.

引用

页数：20

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