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Effect of Hinge Restrainers on the Response of the Madrone Drive Undercrossing during the Loma Prieta Earthquake
| 题名： | Effect of Hinge Restrainers on the Response of the Madrone Drive Undercrossing during the Loma Prieta Earthquake |
| 作者： | O'Connor, D. N.; Saiidi, M.; Maragakis, E. A. |
| 关键词： | Dynamic structural analysis; Highway bridges; Earthquake damage; Reinforcement(Structures); Earthquake engineering; Finite element method; Stiffness; Moments; Bending; Displacement; Deformation; Structural members; Computerized simulation; Dynamic response; Earthquakes |
| 摘要： | One of the most common seismic retrofitting techniques employed by the California Department of Transportation in recent years is the use of longitudinal restrainer cable systems. The Madrone Drive Undercrossing was retrofitted in 1985 with restrainer cables at the intermediate hinges and concrete shear keys at the abutments. The October 1989 Loma Prieta earthquake caused extensive damage in the San Francisco Bay Area. Ground acceleration at the Madrone Drive Undercrossing was estimated at 0.65-g. The report describes the computer earthquake analysis conducted to determine the effect of the restrainer cables on the bridge's response. Analysis cases examined include models with restrainer cables and without restrainer cables. Comparison of the results is made which provides an indication of the performance of the cables. |
| 总页数： | 112p |
| 报告类型： | 科技报告 |
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