Nonlinear dynamic tests of a reinforced concrete frame building at different damage levels

Authors

Seyedsina Yousefianmoghadam, University at BuffaloFollow
Mingming Song, Tufts UniversityFollow
Mohammad E. Mohammadi, University of Nebraska - LincolnFollow
Brittany Packard, University at Buffalo
Andreas Stavridis, University at BuffaloFollow
Babak Moaveni, Tufts UniversityFollow
Richard L. Wood, University of Nebraska-LincolnFollow

ORCID IDs

Seyedsina Yousefianmoghadam https://orcid.org/0000-0001-7632-8561

Mingming Song https://orcid.org/0000-0002-1001-2326

Mohammad Ebrahim Mohammadi https://orcid.org/0000-0002-2368-3962

Andreas Stavridis https://orcid.org/0000-0001-9449-6796

Babak Moaveni https://orcid.org/0000-0002-8462-4608

Richard L. Wood https://orcid.org/0000-0002-8642-2217

Document Type

Article

Date of this Version

5-11-2020

Citation

Yousefianmoghadam S, Song M, Mohammadi ME, et al. Nonlinear dynamic tests of a reinforced concrete frame building at different damage levels. Earthquake Engng Struct Dyn. 2020;49:924–945. https://doi.org/10.1002/eqe.3271

Comments

Copyright © 2020 John Wiley & Sons, Ltd.. Used by permission.

Abstract

This paper discusses the dynamic tests of a two-story infilled reinforced concrete (RC) frame building using an eccentric-mass shaker. The building, located in El Centro, CA, was substantially damaged prior to the tests due to the seismic activity in the area. During the testing sequence, five infill walls were removed to introduce additional damage states and to investigate the changes in the dynamic properties and the nonlinear response of the building to the induced excitations. The accelerations and displacements of the structure under the forced and ambient vibrations were recorded through an array of sensors, while lidar scans were obtained to document the damage. The test data provide insight into the nonlinear response of an actual building and the change of its resonant frequencies and operational shapes due to varying damage levels and changes of the excitation amplitude, frequency, and orientation.