| 潮白河大桥的结构体系与消能减震分析 |
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| 引用本文： | 张宏远. 潮白河大桥的结构体系与消能减震分析[J]. 城市道桥与防洪, 2009, 0(8): 55-58 |
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| 作者姓名： | 张宏远 |
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| 作者单位： | 北京市市政工程设计研究总院,北京市,100082 |
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| 摘 要： | 京承高速公路潮白河大桥主桥为三塔部分斜拉桥,为了消除环境温度变化和混凝土收缩徐变的不利影响,采用中塔处塔梁墩固接、边塔和边墩处墩梁间纵向滑动的结构体系。该文讨论了潮白河大桥主桥的抗震性能,讨论了按照《公路工程抗震设计规范》(JTJ004-89)进行抗震设计的不足;根据结构体系的特点,提出在边塔墩与主梁之间设置流体粘滞阻尼器消能减震的方案,并通过分析确定了阻尼器的参数和布置。计算结果表明,流体粘滞阻尼器可以有效减小潮白河大桥的地震反应,提高结构的抗震能力和地震安全性。
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| 关 键 词： | 部分斜拉桥 结构体系 流体粘滞阻尼器 消能减震 |
Analvsis of Structural System and Enerzy-dissipating and Shock-absorbing of Caobai River Bridge |
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| Zhang Hongyuan. Analvsis of Structural System and Enerzy-dissipating and Shock-absorbing of Caobai River Bridge[J]. Urban Roads Bridges & Flood Control, 2009, 0(8): 55-58 |
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| Authors: | Zhang Hongyuan |
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| Abstract: | The main bridge of Caobai River Bridge in Jingcheng Expressway is a three-pylon partial cable-stayed bridge. In order to eliminate the disadvantage influences of the surrounding temperature variety and the concrete shrinkage creep, the structural system of fixing the pylon, beam with pier at the middle pylon, and the longitudinal slipping between the pier and beam at the side pylon and side pier. The article discusses the anti-earthquake performance of the main bridge of Caobai River Bridge, and the shortag... |
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| Keywords: | partial cable-stayed bridge structural system fluid viscous damper energy-dissipating and shock-absorbing |
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