Access the full text.
Sign up today, get DeepDyve free for 14 days.
Loading next page...
/lp/sage/test-and-analysis-on-a-novel-self-restoring-uplift-column-w3RZqCSDBO
- Publisher
- SAGE
- Copyright
- © The Author(s) 2018
- ISSN
- 1369-4332
- eISSN
- 2048-4011
- DOI
- 10.1177/1369433217753693
- Publisher site
- See Article on Publisher Site
Abstract
A novel self-restoring uplift column was proposed to allow uplift of exterior column bases of core-outrigger structures, which may make upper structure rock and hence mitigate seismic damage. The self-restoring uplift column consists of two steel sub-columns, a steel shear panel and several post-tensioned strands. Besides uplift mechanism, energy dissipating and self-restoring mechanisms were involved to dissipate energy and reduce structural residual drift, respectively. Low cycle test of four one-seventh scaled specimens were conducted and then simulated by finite element analysis. Self-restoring capability and satisfactory energy dissipating ability were observed in experimental results. The calibrated finite element models were then used to explore key design issues of the self-restoring uplift column. It was indicated that the elastic state of post-tensioned strands and sufficient restoring force were the two main factors influencing the restoring behavior most. A simplified model for axial behavior of the self-restoring uplift column was developed to simplify the design of the self-restoring uplift column. Finally, key design requirements about gap opening, shear panel, and self-centering capability were discussed.
Journal
Advances in Structural Engineering – SAGE
Published: Aug 1, 2018