| 多跨系杆拱桥组合梁剪力钉受力性能分析 |
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| 引用本文： | 杨国涛, 吴冲, 苏庆田. 多跨系杆拱桥组合梁剪力钉受力性能分析[J]. 北京工业大学学报, 2011, 37(12): 1806-1810. |
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| 作者姓名： | 杨国涛 吴冲 苏庆田 |
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| 作者单位： | 1.同济大学 桥梁工程系, 上海 200092 |
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| 基金项目： | 国家科技支撑计划项目资助(2009BAG15B02);浙江省科技计划项目资助(2009C11102) |
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| 摘 要： | 通过推出试验确定剪力钉荷载滑移曲线得到剪力钉的刚度取值,进而建立了考虑钢与混凝土之间相对滑移的某三跨连续下承式系杆拱桥有限元分析模型.分析了在温度作用和车辆荷载作用下剪力钉的受力情况,利用增量方法分析了恒载效应随着混凝土的收缩徐变的时间发展历程.分析结果表明,局部温差作用对剪力钉的受力影响较大,端横梁处剪力钉的受力较中横梁处剪力钉受力要大;由于收缩徐变的作用,随着时间发展恒载引起的剪力钉受力相比于成桥时有所减少.
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| 关 键 词： | 拱桥 组合梁 剪力钉 收缩徐变 |
| 收稿时间： | 2009-11-30 |
Analysis on the Shear Studs in Composite Girders of Multi-Span Tied Arch Bridge |
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| YANG Guo-tao, WU Chong, SU Qing-tian. Analysis on the Shear Studs in Composite Girders of Multi-Span Tied Arch Bridge[J]. Journal of Beijing University of Technology, 2011, 37(12): 1806-1810. |
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| Authors: | YANG Guo-tao WU Chong SU Qing-tian |
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| Affiliation: | 1.Department of Bridge Engineering, Tongji University, Shanghai 200092, China |
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| Abstract: | The load-sliding curve and the shear stiffness of the shear studs can be derived from push-out tests,and furthermore the finite element analysis model of steel-concrete composite beams which take into account the sliding between the steel and concrete is establised the stud force of a three span through tied arch bridge under temperature and vehicle load is analyzed and the result shows that the influence of daily femperature effects is significant near the end cross beam.The time dependent behavior of the dead load effects due to the shrinkage and creep of the concrete is analyzed with the step by step method,and the calculation result shows that the stud force decreases along with the time. |
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| Keywords: | arch bridge composite beam shear stud shrinkage and creep |
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