Performance of slender reinforced concrete structural walls under significant lateral loads

T. Welt, A. Qureishi, J. LaFave, D. Lehman, S. McCabe

Research output: Contribution to conferencePaper

Abstract

Special reinforced concrete structural walls are the most common lateral force-resisting system in reinforced concrete construction in the United States. However, recent earthquakes in Chile have indicated that flexure-dominated walls may still exhibit low-ductility failure mechanisms. The National Institute of Standards and Technology (NIST) has initiated a multi-phase large-scale testing project in order to better understand the behavioral implications on ductility of several design parameters, and develop code recommendations based on findings. The first phase focuses on boundary element detailing, wall configuration, reinforcement ratio and configuration, and axial load ratio. In addition to large-scale walls, subcomponent-scale tests, which are indicative of boundary elements in reinforced concrete walls, are being conducted to provide preliminary data. Specimens are tested cyclically in tension and compression, with some subjected to large tension strains prior to cyclic loading. Results from the first two tests indicate that sections exposed to significant tension strain have a significantly reduced compressive capacity. Damage progression during tests also suggests that the buckling behavior observed in the 2010 Maule Chile earthquake may be the result of localized damage that occurs beyond the section's compressive capacity, rather than the cause of it. Additionally, data shows that rectangular sections may be more difficult to adequately confine than previously thought.

Original languageEnglish (US)
DOIs
StatePublished - Jan 1 2014
Event10th U.S. National Conference on Earthquake Engineering: Frontiers of Earthquake Engineering, NCEE 2014 - Anchorage, United States
Duration: Jul 21 2014Jul 25 2014

Other

Other10th U.S. National Conference on Earthquake Engineering: Frontiers of Earthquake Engineering, NCEE 2014
CountryUnited States
CityAnchorage
Period7/21/147/25/14

Fingerprint

reinforced concrete
Reinforced concrete
Ductility
Earthquakes
ductility
Axial loads
Concrete construction
Buckling
Reinforcement
earthquake
damage
flexure
buckling
cyclic loading
failure mechanism
reinforcement
Testing
compression
test

ASJC Scopus subject areas

  • Geotechnical Engineering and Engineering Geology

Cite this

Welt, T., Qureishi, A., LaFave, J., Lehman, D., & McCabe, S. (2014). Performance of slender reinforced concrete structural walls under significant lateral loads. Paper presented at 10th U.S. National Conference on Earthquake Engineering: Frontiers of Earthquake Engineering, NCEE 2014, Anchorage, United States. https://doi.org/10.4231/D39882N40

Performance of slender reinforced concrete structural walls under significant lateral loads. / Welt, T.; Qureishi, A.; LaFave, J.; Lehman, D.; McCabe, S.

2014. Paper presented at 10th U.S. National Conference on Earthquake Engineering: Frontiers of Earthquake Engineering, NCEE 2014, Anchorage, United States.

Research output: Contribution to conferencePaper

Welt, T, Qureishi, A, LaFave, J, Lehman, D & McCabe, S 2014, 'Performance of slender reinforced concrete structural walls under significant lateral loads', Paper presented at 10th U.S. National Conference on Earthquake Engineering: Frontiers of Earthquake Engineering, NCEE 2014, Anchorage, United States, 7/21/14 - 7/25/14. https://doi.org/10.4231/D39882N40
Welt T, Qureishi A, LaFave J, Lehman D, McCabe S. Performance of slender reinforced concrete structural walls under significant lateral loads. 2014. Paper presented at 10th U.S. National Conference on Earthquake Engineering: Frontiers of Earthquake Engineering, NCEE 2014, Anchorage, United States. https://doi.org/10.4231/D39882N40
Welt, T. ; Qureishi, A. ; LaFave, J. ; Lehman, D. ; McCabe, S. / Performance of slender reinforced concrete structural walls under significant lateral loads. Paper presented at 10th U.S. National Conference on Earthquake Engineering: Frontiers of Earthquake Engineering, NCEE 2014, Anchorage, United States.
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