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Field Performance of Timber Bridges 19. North Yarmouth Stress- Laminated Truss Bridge
| 题名： | Field Performance of Timber Bridges 19. North Yarmouth Stress- Laminated Truss Bridge |
| 作者： | Habib J. Dagher Frank M. Altimore Vincent Caccese Michael A. Ritter |
| 关键词： | timber, bridge, wood, stress-laminated, truss |
| 摘要： | The North Yarmouth bridge was constructed in the spring of 1994 in North Yarmouth, Maine. The bridge is a single span, two-lane, stress-laminated truss structure that is approximately 39 ft long and 32 ft wide. The truss laminations were produced using chromated-copper-arsenate- (CCA-) treated Southern Pine connected with metal plate connectors. This report includes information on the design, construction, and field performance of the bridge. Performance of the bridge was monitored for approximately 4 years, beginning shortly after bridge construction. During the field-monitoring pro gram, data were collected related to the wood moisture con tent, the force level of the stressing bars, behavior under static truck loading, and overall structural condition. Based on 4 years of field evaluations, the bridge is performing well with no structural or serviceability deficiencies. |
| 报告类型： | 科技报告 |
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