桥梁荷载横向分布系数研究 |
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引用本文: | 韩劲龙,;郝艳广,;刘相良. 桥梁荷载横向分布系数研究[J]. 建材世界, 2014, 0(3): 49-51 |
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作者姓名: | 韩劲龙, 郝艳广, 刘相良 |
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作者单位: | [1]中交武汉港湾工程设计研究院有限公司,武汉430040; [2]武汉港湾工程质量检测有限公司,武汉430040 |
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摘 要: | 针对相同桥宽不同跨径的 T 梁桥荷载横向分布特性不同的现象,基于数学模型与有限元模型对比的思路,采用 MIDAS大型有限元软件,建立5片T梁的空间有限元分析模型,分析不同主梁跨径的横向分布系数,并与比拟正交异性板法计算值相比较的方法,对不同跨径的T梁桥荷载横向分布系数进行了研究,得出以下结论:当主梁跨径小于30 m时,采用比拟正交异性板法计算值与空间有限元模型计算值相差不大;当主梁跨径大于30 m 时,采用比拟正交异性板法计算值与空间有限元模型计算值相差较大。
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关 键 词: | 横向分布 空间有限元 比拟正交异性板法 |
Research on Bridge Load Transverse Distribution Coefficient |
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Affiliation: | HAN Jing-long, HAOYan-guang, LIUXiang-liang (1. CCCC Wuhan Harbour Engineering Design and Research Co, Ltd, Wuhan 430040, China; 2. Wuhan Harbour Engineering Quality Inspection Co, Ltd, Wuhan 430040, China) |
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Abstract: | Based on the load of T beam bridge transverse distribution characteristics of the same bridge width of dif-ferent span,mathematical model and finite element model based on the idea of the comparison,this paper established a finite element analysis model of 5 pieces of T beams through MIDAS,analysed different span length of transverse dis-tribution coefficient.Compared to the value calculation method with the method,the load transverse distribution factors of different span T beam bridge is studied.Reaches show that when the span is less than 30 m,the orthotropic plate method and spatial finite element model come to the same conclusion;when the span is more than 30 m,the orthotro-pic plate method and space finite element model to calculate the value has big difference. |
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Keywords: | transverse distribution space finite element orthotropic plate method |
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