| 大跨连续组合箱梁桥面板轮载作用分析 |
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| 引用本文： | 吴万忠,周云岗,张杨永.大跨连续组合箱梁桥面板轮载作用分析[J].重庆交通大学学报(自然科学版),2009,28(5):818-821. |
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| 作者姓名： | 吴万忠 周云岗 张杨永 |
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| 作者单位： | 同济大学,桥梁工程系,上海200092 |
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| 摘 要： | 结合工程实例,介绍了大跨连续组合箱梁桥面板在汽车轮载作用下的空间有限元仿真分析方法,并将分析结果与相关文献的简化方法计算结果进行了对比。结果表明:简化方法结果较有限元结果整体偏高。对于桥面板块跨中弯矩,简支板模型偏高29%以上,连续板模型偏高15%以上;对于板块支点处弯矩,连续板模型由于没有考虑内力的重分布,计算结果偏高51%以上。初步设计阶段建议采用连续板模型估算轮载作用下桥面板板块跨中弯矩。
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| 关 键 词： | 连续梁桥 组合箱梁 桥面板 有限元法 简化方法 |
Wheel Load of Bridge Deck of Large-Span Continuous Composite Box Girder |
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| WU Wan-zhong,ZHOU Yun-gang,ZHANG Yang-yong.Wheel Load of Bridge Deck of Large-Span Continuous Composite Box Girder[J].Journal of Chongqing Jiaotong University,2009,28(5):818-821. |
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| Authors: | WU Wan-zhong ZHOU Yun-gang ZHANG Yang-yong |
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| Institution: | WU Wan-zhong,ZHOU Yun-gang,ZHANG Yang-yong(Department of Bridge Engineering,Tongji University,Shanghai 200092,China) |
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| Abstract: | Combining with the engineering case study,a spatial simulation method based on FEM is introduced to analyze the wheel load of bridge deck in the large-span continuous bridge with composite boxgirder.The results of the analysis are compared with those got by the simplified methods in relative literature review.The comparison shows that the results got by simplified methods are higher than those got by FEM in general.For the moments in the middle span of bridge deck,the result of simply-supported plate model ... |
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| Keywords: | continuous beam bridge composite box girder bridge deck finite element method simplified method |
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