| 体外预应力对简支梁桥冲击系数影响的研究 |
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| 引用本文： | 张彬,吉禹霏,张宝成.体外预应力对简支梁桥冲击系数影响的研究[J].北方交通,2006(7):65-68. |
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| 作者姓名： | 张彬 吉禹霏 张宝成 |
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| 作者单位： | 1. 辽宁工程技术大学,阜新,123000
2. 阜新市公路管理处,阜新,123000 |
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| 摘 要： | 通过对普通简支梁桥冲击系数计算方法的分析入手,对体外预应力结构加固后的简支梁桥冲击系数计算方法进行了研究。通过两者的对比,得出体外预应力结构对简支梁桥冲击系数的影响。同时指出了在应用体外预应力方法进行桥梁加固时,应对加固后各构件的振动特性进行分析,以免各构件因共振等原因发生破坏。
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| 关 键 词： | 体外预应力 冲击系数 桥梁加固 桥梁振动 |
The Impact Coefficient Affection Analysis of Simple Supported Concrete Bridge Strengthened by External Prestressing |
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| Authors: | Zhang Bin;Ji YuFei;Zhang BaoCheng |
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| Abstract: | This paper takes the analysis of the impact coefficient calculating method of ordinary simple supported concrete bridge as the point of departure, and then discusses the impact coefficient calculating method of simple supported concrete bridge which is strengthened by external prestressed construction. Comparing with two methods above, the affection of the impact coefficient from external prestressed consolidation is acquired. According to this, it is necessary to analyze the vibration characteristics of the reinforced simple supported concrete bridge after strengthened to avoid each component being destroyed because of sympathetic vibration, if the consolidation method adopts external prestressing. |
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| Keywords: | External prestressing Impact coefficient Bridge consolidation Bridge vibration |
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