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Seismic Retrofit of End-Sway Frames of Steel Deck-Truss Bridges with a Supplemental Tendon System: Experimental and Analytical Investigation; Technical rept
| 题名： | Seismic Retrofit of End-Sway Frames of Steel Deck-Truss Bridges with a Supplemental Tendon System: Experimental and Analytical Investigation; Technical rept |
| 作者： | Pekcan, G.; Mander, J. B.; Chen, S. S. |
| 关键词： | Seismic design; Retrofitting; Bridge decks; Steel structures; Bracing; Damping(Engineering); Frames; Tendons(Materials); Structural tests; Shaking table tests; Computer programs; Structural analysis; Earthquake engineering; Model tests; Dynamic characteristics; Steel bridges; Load paths |
| 摘要： | 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. |
| 总页数： | 190p |
| 报告类型： | 科技报告 |
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