NEHRP Clearinghouse
- Title
- Seismic Retrofit of End-Sway Frames of Steel Deck-Truss Bridges with a Supplemental Tendon System: Experimental and Analytical Investigation.
- File
- PB2001100982.pdf
- Author(s)
- Pekcan, G.; Mander, J. B.; Chen, S. S.
- Source
- Federal Highway Administration, Washington, DC., July 1, 2000, 186 p.
- Identifying Number(s)
- MCEER-00-0004
- Abstract
- The paper investigates an alternative seismic retrofit approach that can be employed in main sway frames of steel deck-truss bridges. The proposed approach provides various possible modified bracing configurations such as supplemental damping systems. The efficiency of the retrofit configurations is demonstrated experimentally and analytically on a one-third scale model of an existing steel end-sway frame structure tested on a shaking table. The tested configurations include pairs of tendon elements, while the supplemental system consisted of mechanical fuse-bars and/or elastomeric spring dampers. Experimental results are compared with the analytical results using an enhanced version of nonlinear time history analysis program Drain-2DX.
- Keywords
- Seismic design; Steel structures; Nonlinear time history analysis; Steel bridges; Structural tests; Steel deck truss bridges; Drain-2DX program; Tendons (Materials); Damping (Engineering); Shaking table tests; Retrofitting; Bracing; Bridge decks; Dynamic characteristics; Structural analysis; Frames; Model tests; Earthquake engineering; Load paths; Computer programs