Remote Modal Study of Reinforced Concrete Buildings Using a Multipath Lidar Vibrometer

AbstractOver recent years there has been growing interest in building frequency analysis using ambient vibrations in the fields of structural engineering with application to earthquakes, health monitoring, or operative testing. The direct applications are (1) to define the modal characteristics of existing buildings for modeling their seismic response, (2) to monitor the long-term variations in their structural health, and (3) to detect and localize changes in the structure such as those produced by earthquake damage. Simultaneously, velocity measurements with laser remote sensing techniques have gained interest for several applications. For example, coherent lidar systems enable accurate measurement of the vibration velocity of remote targets. This allows operative modal analysis (OMA) of potentially damaged buildings, for their diagnosis from a safe distance after a seismic event. This paper compares the frequency analyses obtained using sensitive velocimeter sensors and coherent lidar sensors, applied ...

[1]  J. E. Luco,et al.  On the apparent change in dynamic behavior of a nine-story reinforced concrete building , 1987 .

[2]  Philippe Guéguen,et al.  CityShark: A User-friendly Instrument Dedicated to Ambient Noise (Microtremor) Recording for Site and Building Response Studies , 2000 .

[3]  Monica D. Kohler,et al.  Earthquake and Ambient Vibration Monitoring of the Steel-Frame UCLA Factor Building , 2005 .

[4]  A. K. Pandey,et al.  Damage Detection in Structures Using Changes in Flexibility , 1994 .

[5]  Steve Rothberg,et al.  Synchronized-scanning laser vibrometry , 2004, International Conference on Vibration Measurements by Laser Techniques: Advances and Applications.

[6]  Thomas H. Heaton,et al.  Potential Advantages of a Strong-motion Velocity Meter over a Strong-motion Accelerometer , 2002 .

[7]  Weidong Zhu,et al.  Experimental and Numerical Investigation of Structural Damage Detection Using Changes in Natural Frequencies , 2007 .

[8]  Clotaire Michel,et al.  Comparison between seismic vulnerability models and experimental dynamic properties of existing buildings in France , 2010 .

[9]  Carlos E. Ventura,et al.  Dynamic characteristics of a base isolated building from ambient vibration measurements and low level earthquake shaking , 2003 .

[10]  Lei Tian,et al.  DAMAGE DETECTION IN SMART STRUCTURES THROUGH SENSITIVITY ENHANCING FEEDBACK CONTROL , 1999 .

[11]  Yi-Qing Ni,et al.  Modeling of Temperature–Frequency Correlation Using Combined Principal Component Analysis and Support Vector Regression Technique , 2007 .

[12]  Daniel J. Inman,et al.  An experimentally validated damage detection theory in smart structures , 1996 .

[13]  Philippe Guéguen,et al.  Seismic vulnerability assessment to slight damage based on experimental modal parameters , 2012 .

[14]  Long T. Phan,et al.  Dynamic characteristics of five tall buildings during strong and low‐amplitude motions , 1993 .

[15]  Charles R. Farrar,et al.  Damage identification and health monitoring of structural and mechanical systems from changes in their vibration characteristics: A literature review , 1996 .

[16]  Panagiotis Kotronis,et al.  Full‐scale dynamic response of an RC building under weak seismic motions using earthquake recordings, ambient vibrations and modelling , 2007, 0710.1205.

[17]  John A. Blume.  Highrise building characteristics and responses determined from nuclear seismology , 1972, Bulletin of the Seismological Society of America.

[18]  Jean-Luc Chatelain,et al.  Reliable Fundamental Frequencies of Soils and Buildings Down to 0.1 Hz Obtained from Ambient Vibration Recordings with a 4.5‐Hz Sensor , 2013 .

[19]  G. Housner.  Interaction of building and ground during an earthquake , 1957 .

[20]  Clotaire Michel,et al.  Dynamic parameters of structures extracted from ambient vibration measurements : An aid for the seismic vulnerability assessment of existing buildings in moderate seismic hazard regions , 2007, 0710.1210.

[21]  Roger Ghanem,et al.  A novel approach for the structural identification and monitoring of a full-scale 17-story building based on ambient vibration measurements , 2008 .

[22]  Thomas H. Heaton,et al.  Propagating Waves in the Steel, Moment-Frame Factor Building Recorded during Earthquakes , 2007 .

[23]  Marco Vona,et al.  Empirical estimate of fundamental frequencies and damping for Italian buildings , 2009 .

[24]  Anil K. Chopra,et al.  Building Period Formulas for Estimating Seismic Displacements , 2000 .

[25]  F Dunand,et al.  Seismic evaluation of existing nuclear facility using ambient vibration test to characterize dynamic behavior of the structure and microtremor measurements to characterize the soil: a case study , 2002 .

[26]  Philippe Guéguen,et al.  The French Accelerometric Network (RAP) and National Data Centre (RAP-NDC) , 2008 .

[27]  Philippe Guéguen,et al.  Ambient Vibration Recording for Single-Station, Array and Building Studies Made Simple: CityShark II , 2012 .

[28]  Anil K. Chopra,et al.  PERIOD FORMULAS FOR CONCRETE SHEAR WALL BUILDINGS , 1998 .

[29]  Jean-Pierre Cariou,et al.  Performance of an erbium laser vibration sensor , 1999, Defense, Security, and Sensing.

[30]  Alexandru Aldea,et al.  Using experimental data to reduce the single-building sigma of fragility curves: case study of the BRD tower in Bucharest, Romania , 2013, Earthquake Engineering and Engineering Vibration.

[31]  Maria I. Todorovska,et al.  Ambient vibration tests of a seven-story reinforced concrete building in Van Nuys, California, damaged by the 1994 Northridge earthquake , 2000 .

[32]  Thomas H. Heaton,et al.  The Observed Wander of the Natural Frequencies in a Structure , 2006 .

[33]  Maria I. Todorovska,et al.  Soil-Structure System Identification of Millikan Library North–South Response during Four Earthquakes (1970–2002): What Caused the Observed Wandering of the System Frequencies? , 2009 .

[34]  Keith Worden,et al.  An introduction to structural health monitoring , 2007, Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences.

[35]  G. De Roeck,et al.  Vibration based Structural Health Monitoring using output-only measurements under changing environment , 2008 .

[36]  Paul C. Jennings,et al.  Soil-structure interaction during the San Fernando earthquake , 1975, Bulletin of the Seismological Society of America.

[37]  David A. Nix,et al.  Vibration–based structural damage identification , 2001, Philosophical Transactions of the Royal Society of London. Series A: Mathematical, Physical and Engineering Sciences.

[38]  Arun Kumar Pandey,et al.  Damage detection from changes in curvature mode shapes , 1991 .

[39]  Clotaire Michel,et al.  Time-Frequency Analysis of Small Frequency Variations in Civil Engineering Structures Under Weak and Strong Motions Using a Reassignment Method , 2010 .

[40]  Rune Brincker,et al.  Modal identification of output-only systems using frequency domain decomposition , 2001 .

[41]  Pierre-Yves Bard,et al.  The Analysis of Long‐Term Frequency and Damping Wandering in Buildings Using the Random Decrement Technique , 2013, 1303.2642.

[42]  Maria I. Todorovska,et al.  Effects of rainfall on soil–structure system frequency: Examples based on poroelasticity and a comparison with full-scale measurements , 2006 .

[43]  Naoki Satake,et al.  Evaluation of vibration properties of high-rise steel buildings using data of vibration tests and earthquake observations , 1996 .

[44]  Clotaire Michel,et al.  Comparison of velocimeter and coherent lidar measurements for building frequency assessment , 2010 .

[45]  Paul C. Jennings,et al.  Vibration and soil-structure interaction tests of a nine-story reinforced concrete building , 1968 .

[46]  Carlos Sousa Oliveira,et al.  Fundamental periods of vibration of RC buildings in Portugal from in-situ experimental and numerical techniques , 2010 .