Self-Centering Column Components

In order to minimize residual displacements in reinforced concrete columns, this paper proposes a design whereby a longitudinal posttensioning tendon replaces some of the usual longitudinal mild reinforcing bars. The seismic performance of such partially prestressed, reinforced concrete columns is investigated through a series of earthquake simulator tests. The effects of unbonding of longitudinal mild reinforcement and providing a steel jacket are also investigated. The partially prestressed, reinforced concrete columns studied perform remarkably well under strong ground excitations. Very small permanent deformations are observed after the tests, especially when the longitudinal mild reinforcement is unbonded and a steel jacket is provided.

• Corporate Authors:

  Multidisciplinary Center for Earthquake Engineering Research

  State University of New York, 107 Red Jacket Quadrangle, P.O. Box 610025
  Buffalo, NY  United States  14261-0025
• Authors:
  • Mahin, Stephen A
  • Sakai, Junichi
  • Jeong, Hyungil
• Conference:
  • The Second US-Taiwan Bridge Engineering Workshop
  • Location: San Mateo CA, United States
  • Date: 2006-9-21 to 2006-9-22
• Publication Date: 2006

Language

• English

Media Info

• Media Type: Print
• Features: Figures; Photos; References; Tables;
• Pagination: 13p
• Monograph Title: Proceedings of the Second US-Taiwan Bridge Engineering Workshop

Subject/Index Terms

• TRT Terms: Bridge engineering; Bridge members; Columns; Earthquake resistant design; Earthquake resistant structures; Jacketing (Strengthening); Material reinforcement; Posttensioning; Reinforced concrete; Reinforced concrete bridges; Structural supports
• Uncontrolled Terms: Bridge columns
• Subject Areas: Bridges and other structures; Design; Highways; I24: Design of Bridges and Retaining Walls;

Filing Info

• Accession Number: 01079604
• Record Type: Publication
• Files: TRIS
• Created Date: Oct 22 2007 10:15AM