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Article
Effects of Footing Connections of Precast Hollow-Core Composite Columns
TRB 96th Annual Meeting Compendium of Papers
  • Mohanad M. Abdulazeez
  • Omar I. Abdelkarim
  • Ahmed Gheni
  • Mohamed ElGawady, Missouri University of Science and Technology
  • Greg Sanders
Abstract

This paper presents the seismic behavior of the footing connection of a large-scale hollow-core fiber-reinforced polymer-concrete-steel (HC-FCS) precast column. The precast HC-FCS column consists of a concrete wall sandwiched between an outer fiber-reinforced polymer (FRP) tube and an inner steel tube. The column had an outer diameter of 610 mm (24 inches) and a height-to-diameter ratio of 4.0. The steel tube was embedded into a reinforced concrete footing with an embedded length of 1.6-1.8 times the steel tube diameter, while the outer FRP tube confined the concrete and rested on the top of the footing level. A new footing connection including an embedded corrugated steel pipe was proposed into this study. The precast column was inserted into the footing. A high strength grout was poured in the connection between the column and the footing. The seismic performance of the precast HC-FCS column with this footing connection type is compared with previous experimental work. This study shows that this type of connection assembly is deemed satisfactory by developing the whole capacity of such columns, and providing excellent ductility with inelastic deformation capacity by alleviating the damage at high lateral drift.

Meeting Name
Transportation Research Board (TRB) 96th Annual Meeting (2017: Jan. 8-12, Washington, DC)
Department(s)
Civil, Architectural and Environmental Engineering
Document Type
Article - Conference proceedings
Document Version
Citation
File Type
text
Language(s)
English
Rights
© 2017 Transportation Research Board (TRB), All rights reserved.
Publication Date
1-12-2017
Publication Date
12 Jan 2017
Citation Information
Mohanad M. Abdulazeez, Omar I. Abdelkarim, Ahmed Gheni, Mohamed ElGawady, et al.. "Effects of Footing Connections of Precast Hollow-Core Composite Columns" TRB 96th Annual Meeting Compendium of Papers (2017)
Available at: http://works.bepress.com/mohamed-elgawady/75/