Validation of a Construction Process Using a Structural Health Monitoring Network

Nunez, T. R.; Boroschek, Rubén; Larraín, Antonia

doi:10.1061/(asce)cf.1943-5509.0000293

Cited by 8 publications

(2 citation statements)

References 13 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Experimental modal analysis and operational modal analysis are the main procedures to identify the modal parameters (natural frequencies, equivalent damping ratios, and mode shapes) from recorded structural vibration data, information that can be used to improve and update numerical models of the structure of interest. Most of the studies conducted in this area were based on data collected from completed structures (e.g., ), while only a few have analyzed the variation of the dynamic properties of buildings during construction (e.g., ) and the effects of nonstructural components and systems (NCSs) on the dynamic properties (e.g., ). Most of previous research studying the variation of the modal properties during construction and due to NCSs have used ambient vibrations (AVs) recorded in 3‐story to 56‐story buildings to identify the modal parameters of the buildings and compare them with those obtained from linear FE models typically used in engineering practice (e.g., ).…”

Section: Introductionmentioning

confidence: 99%

Influence of the construction process and nonstructural components on the modal properties of a five‐story building

Astroza

Ebrahimian

Conte

et al. 2016

Earthq Engng Struct Dyn

View full text Add to dashboard Cite

Summary A full‐scale five‐story reinforced concrete building was built and tested on the NEES‐UCSD shake table during the period from May 2011 to May 2012. The purpose of this test program was to study the response of the structure and nonstructural components and systems (NCSs) and their dynamic interaction during seismic base excitation of different intensities. The building specimen was tested first under a base‐isolated condition and then under a fixed‐based condition. As the building was being erected, an accelerometer array was deployed on the specimen to study the evolution of its modal parameters during the construction process and placement of major NCSs. A sequence of dynamic tests, including daily ambient vibration, shock (free vibration) and forced vibration tests (low‐amplitude white noise and seismic base excitations), were performed on the building at different stages of construction. Different state‐of‐the‐art system identification methods, including three output‐only and two input‐output methods, were used to estimate the modal properties of the building. The obtained results allow to investigate in detail the effects of the construction process and NCSs on the dynamic parameters of this building system and to compare the modal properties obtained from different methods, as well as the performance of these methods. Copyright © 2015 John Wiley & Sons, Ltd.

show abstract

Section: Introductionmentioning

confidence: 99%

Influence of the construction process and nonstructural components on the modal properties of a five‐story building

Astroza

Ebrahimian

Conte

et al. 2016

Earthq Engng Struct Dyn

View full text Add to dashboard Cite

show abstract

“…It is beneficial to minimize the uncertainty of the behaviors of materials, loading conditions, and structural performance during the service lives of structures. Thus, evaluating the construction process's quality and validating the computational structural designs is relevant to the initial conditions of an infrastructure project, which should then be subjected to strict procedures of inspection and SHM strategies [4].…”

Section: Introductionmentioning

confidence: 99%

Design and Validation of a Low-Cost Structural Health Monitoring System for Dynamic Characterization of Structures

et al. 2022

View full text Add to dashboard Cite

Structural Health Monitoring (SHM) is essential to identifying problems that may cause human and material losses produced by disastrous and unexpected structural failures. The dynamic characterization of civil structures adopting SHM systems provides, at a particular moment, accurate information about the current structural response. When considering a proper SHM strategy and affordable economic investment for the maintenance required by structures, it is possible to safeguard the original structural parameters and avoid potential failures. However, traditional SHM systems are not desirable due to the large economic investments involved and demand for exhausting fieldwork. This research presents the design, implementation, and validation of a low-cost SHM system composed of a Wireless Sensor Network (WSN) and a base station in order to identify dynamic properties from the measured structural response. A set of small- and full-scale experimental tests were conducted to validate the WSN system using a wired traditional SHM system. Vibration data recorded through the low-cost SHM system were processed and compared to determine the natural frequencies, mode shapes, and damping properties of different structures by computing modal identification techniques, frequency analysis, and logarithmic decrement. The obtained dynamic characterization results from small- and full-scale experimental testing conclude that the low-cost SHM system can reliably identify the dynamic properties of the tested structures. This proposal provides an inexpensive, functional, and innovative alternative for SHM regarding traditional monitoring systems.

show abstract

Evolution of Dynamic Properties of a 5-Story RC Building During Construction

Astroza

Ebrahimian

Conte

et al. 2013

Topics in Dynamics of Civil Structures, Volume 4

View full text Add to dashboard Cite

Validation of a Construction Process Using a Structural Health Monitoring Network

Cited by 8 publications

References 13 publications

Influence of the construction process and nonstructural components on the modal properties of a five‐story building

Influence of the construction process and nonstructural components on the modal properties of a five‐story building

Design and Validation of a Low-Cost Structural Health Monitoring System for Dynamic Characterization of Structures

Evolution of Dynamic Properties of a 5-Story RC Building During Construction

Contact Info

Product

Resources

About