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| The Design and Analysis of Long-Span and Low-Depth Prestressed Composite Steel-Concrete Beam Bridge | |
| 引用本文： | 张俊平,黄海云,黄道沸. The Design and Analysis of Long-Span and Low-Depth Prestressed Composite Steel-Concrete Beam Bridge[J]. 西南交通大学学报(英文版), 2002, 10(1): 57-67 |
| 作者姓名： | 张俊平 黄海云 黄道沸 |
| 作者单位： | [1]GuangzhouUniversity,Ugangzhou510405,China [2]GuangzhouMunicipalDesignResearchInstitute,Guangzhou510060,China |
| 摘 要： | The design scheme of long-span and low-depth composite steel-conerete beams is introduced,and the methods of avoiding the cracking of concrete deck in the negative moment regions are proposed.Moreover,significant exploration for problems of the composite beams has been made,such as optimizing construction steps to regulate the stress,applying jacking technique to exert prestress on the concrete deck,investigating the uplifting force principle of the shear connectors by means of model test and non-linear finite element analysis,and pointing out the countermeasure to reduce tension force of the shear connectors. |
| 关 键 词： | 长跨桥 预应力束钢筋混凝土桥 结构设计 结构分析 张拉法 剪切连接 |
The Design and Analysis of Long-Span and Low-Depth Prestressed Composite Steel-Concrete Beam Bridge |
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| Abstract: | The design scheme of long-span and low-depth composite steel-concrete beams is introduced, and the methods of avoiding the cracking of concrete deck in the negative moment regions are proposed. Moreover, significant exploration for problems of the composite beams has been made, such as optimizing construction steps to regulate the stress, applying jacking technique to exert prestress on the concrete deck, investigating the uplifting force principle of the shear connectors by means of model test and non-linear finite element analysis, and pointing out the countermeasure to reduce tension force of the shear connectors. |
| Keywords: | prestressed composite steel-concrete beam construction step jacking technique shear connector |
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