| 引用本文: | 董俊,曾永平,陈克坚,宋随弟,庞林,邹贻军,张云泰.大跨铁路桥梁金属限位减震装置设计与力学性能[J].哈尔滨工业大学学报,2020,52(3):136.DOI:10.11918/201903192 |
| DONG Jun,ZENG Yongping,CHEN Kejian,SONG Suidi,PANG Lin,ZOU Yijun,ZHANG Yuntai.Design of metal limit damping device and analysis of mechanical properties for long span railway bridge[J].Journal of Harbin Institute of Technology,2020,52(3):136.DOI:10.11918/201903192 |
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| 大跨铁路桥梁金属限位减震装置设计与力学性能 |
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董俊1,曾永平1,陈克坚1,宋随弟1,庞林1,邹贻军2,张云泰3
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(1.中铁二院工程集团有限责任公司, 成都 610031; 2. 成都济通路桥科技有限公司, 成都 610031; 3.中南大学 土木工程学院, 长沙 410083)
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| 摘要: |
| 为研究适用于大跨度铁路桥梁金属限位减震装置,推导建立一种金属限位减震装置的力学性能计算公式,提出了大跨度桥梁金属限位减震装置简化设计方法,并研发了装置的设计分析软件. 以郑万高铁某典型中承式混凝土平行拱桥为研究对象,提出大桥限位减震装置设计参数及其3种连接构造方案,理论计算了装置的力学性能参数,并开展了装置的力学性能实体有限元分析及其对全桥抗震性能影响分析研究. 结果表明:所建立的大跨桥梁金属限位减震装置设计方法适应性强、计算精度高,满足工程应用的精度要求,设计的限位减震装置可以满足高速铁路桥梁对行车舒适性和安全性的要求,具有良好的减震耗能作用,可降低大跨桥梁梁端位移约20%. |
| 关键词: 桥梁工程 中承式拱桥 限位减震装置 力学性能 有限元法 |
| DOI：10.11918/201903192 |
| 分类号:U442.55; U443.3 |
| 文献标识码:A |
| 基金项目:中国中铁科技开发计划(2017-重点-6);中国中铁二院科研项目(院计划KYY2018034(18-19),KYY2018059(18-20)) |
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| Design of metal limit damping device and analysis of mechanical properties for long span railway bridge |
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DONG Jun1,ZENG Yongping1,CHEN Kejian1,SONG Suidi1,PANG Lin1,ZOU Yijun2,ZHANG Yuntai3
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(1. China Railway Eryuan Engineering Group Co. Ltd., Chengdu 610031, China; 2. Chengdu Xetong Technology Co. Ltd., Chengdu 610031, China; 3. School of Civil Engineering, Central South University, Changsha 410083, China)
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| Abstract: |
| To investigate metal limit damping device suitable for long-span railway bridges, formulas for calculating the mechanical properties of a metal limit damping device were established, and a simplified design method for the device was proposed. Meanwhile, the device design analysis software was developed with the combination of related design codes and the simplified design method. By taking a typical half-through arch bridge in Zhengzhou-Wanzhou high speed railway in China as the research object, the design parameters of the bridge limit damping device and three connection structural schemes were proposed. The proposed formulas were used to calculate the mechanical properties of the device, the solid finite element model of the device was established, and the influence on the seismic performance of the bridge was analyzed. Results show that the proposed design method of metal limit damping device had strong adaptability and high calculation precision, which met the accuracy requirement of engineering applications. The device could fulfill the driving comfort and safety demands of high speed railway bridges with good effects of seismicity mitigation and energy dissipation, and it reduced the displacement of the beam end for the long-span bridge by about 20%. |
| Key words: bridge engineering half-through arch bridge limit damping device mechanical property finite element method |
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