Damage Localization in a Building Structure during Seismic Excitation

Joint Authors

Alvarez-Icaza, Luis
Morales-Valdez, Jesús
Escobar, José A.

Source

Shock and Vibration

Issue

Vol. 2020, Issue 2020 (31 Dec. 2020), pp.1-17, 17 p.

Publisher

Hindawi Publishing Corporation

Publication Date

2020-07-28

Country of Publication

Egypt

No. of Pages

17

Main Subjects

Civil Engineering

Abstract EN

Aging of buildings during their service life has attracted the attention of researchers on structural health monitoring (SHM).

This paper is related with detecting damage in building structures at the earliest possible stage during seismic activity to facilitate decision-making on evacuation before physical inspection is possible.

For this, a simple method for damage assessment is introduced to identify the damage story of multistory buildings from acceleration measurements under a wave propagation approach.

In this work, damage is assumed as reduction in shear wave velocities and changes in damping ratios that are directly related with stiffness loss.

Most damage detection methods are off-line processes; this is not the case with this method.

First, a real-time identification system is introduced to estimate the current parameters to be compared with nominal values to detect any changes in the characteristics that may indicate damage in the building.

In addition, this identification system is robust to constant disturbances and measurement noise.

The time needed to complete parameter identification is shorter compared to the typically wave method, and the damage assessment can keep up with the data flow in real time.

Finally, using a robust threshold, postprocess of the compared signal is performed to find the location of the possible damage.

The performance of the proposed method is demonstrated through experiments on a reduced-scale five-story building, showing the ability of the proposed method to improve early stage structural health monitoring.

American Psychological Association (APA)

Morales-Valdez, Jesús& Alvarez-Icaza, Luis& Escobar, José A.. 2020. Damage Localization in a Building Structure during Seismic Excitation. Shock and Vibration،Vol. 2020, no. 2020, pp.1-17.
https://search.emarefa.net/detail/BIM-1212991

Modern Language Association (MLA)

Morales-Valdez, Jesús…[et al.]. Damage Localization in a Building Structure during Seismic Excitation. Shock and Vibration No. 2020 (2020), pp.1-17.
https://search.emarefa.net/detail/BIM-1212991

American Medical Association (AMA)

Morales-Valdez, Jesús& Alvarez-Icaza, Luis& Escobar, José A.. Damage Localization in a Building Structure during Seismic Excitation. Shock and Vibration. 2020. Vol. 2020, no. 2020, pp.1-17.
https://search.emarefa.net/detail/BIM-1212991

Data Type

Journal Articles

Language

English

Notes

Includes bibliographical references

Record ID

BIM-1212991