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在对3M公司ISD110和我国9050两种粘弹性材料性能研究的基础上,探讨了用上述两种材料制成适合于铁路钢桥减振使用的阻尼器的构造和连接方式.并用计算机仿真程序,对3个跨度从20m至32m的3个钢板梁工点进行了不同车速下钢梁动力响应的仿真研究.研究结果说明了所建议的粘弹性阻尼器能有效地减小钢梁的位移响应.
Based on the research on the performance of 3M company ISD110 and China’s 9050 viscoelastic materials, the construction and connection of dampers suitable for damping steel railway bridges with these two materials are discussed. The simulation research on the dynamic response of three steel beams under different vehicle speeds is carried out by using computer simulation program for three steel beams with span from 20m to 32m. The results show that the proposed viscoelastic damper can effectively reduce the displacement response of the steel beam.