| JQ140G型架桥机提高结构强度的改造方案研究 |
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| 引用本文： | 万恒国,范明伟.JQ140G型架桥机提高结构强度的改造方案研究[J].水运科技信息,2011(2):52-55. |
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| 作者姓名： | 万恒国 范明伟 |
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| 作者单位： | [1]中铁重工有限公司,武汉430063 [2]武汉理工大学武汉430063,武汉430063 |
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| 摘 要： | 为提高JQ140G型架桥机的起重能力,必须提高其主要承载结构强度,采用数字仿真技术,对架桥机原结构进行分析计算,经过多次比选校核,提出合理的技术改造方案。通过技术改造,架桥机主要结构承载能力得到提高,经实际架桥检测,主要结构应力、应变均在允许范围内,达到了提高架桥机起重能力的目的。
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| 关 键 词： | 架桥机 结构强度 改造方案 |
Study of Methods of Strengthening the Structure of JQ140G Bridge Girder-erecting Machine |
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| Wan Hengguo,Fan Mingwei.Study of Methods of Strengthening the Structure of JQ140G Bridge Girder-erecting Machine[J].Transportation Science & Technology,2011(2):52-55. |
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| Authors: | Wan Hengguo Fan Mingwei |
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| Institution: | 1.China Railway Heavy Machinery Co.,Ltd.,Wuhan 430063,China; 2.School of Transportation,Wuhan University of Technology,Wuhan 430063,China) |
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| Abstract: | In order to increase lifting capability of JQ140G bridge girder-erecting machine,it was necessary to strengthen its main structure.Based on the numerical simulation analysis of the machine,the paper suggested several technical transformation plans.The engineering application indicates that the technical transformation plan is valid,and that the optimal structure can meet the demand. |
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| Keywords: | bridge girder-erecting machine structure strength technical transformation |
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