| 连续结合梁桥采用顶升技术的探讨 |
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| 引用本文： | 张俊平,李永河,黄道沸. 连续结合梁桥采用顶升技术的探讨[J]. 中山大学学报(自然科学版), 2002, 41(2): 32-36 |
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| 作者姓名： | 张俊平 李永河 黄道沸 |
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| 作者单位： | 1. 广州大学土木工程学院,广东,广州,510405
2. 广州市政设计研究院,广东,广州,510060 |
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| 基金项目： | 广州市建设委员会重点资助项目 |
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| 摘 要： | 通过理论分析、算例、现场实测资料 3个方面探讨了连续结合梁采用顶升技术进行应力调整技术的可行性 ;指出了结合梁收缩徐变效应估算应注意的问题 ;推导了考虑钢梁、混凝土板粘结滑移的结合梁收缩徐变长期行为的理论估算公式 ;并对顶升技术应用时应注意的问题进行了探讨
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| 关 键 词： | 连续结合梁 顶升技术 收缩徐变 混凝土桥面板 |
| 文章编号： | 0529-6579(2002)02-0032-05 |
| 修稿时间： | 2001-10-26 |
The Exploration of the Adoption of Jacking-up Technique to Continuous Steel-Concrete Composite Beam Bridge |
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| ZHANG Jun-ping ,LI Yong-he ,HUANG Dao-fei. The Exploration of the Adoption of Jacking-up Technique to Continuous Steel-Concrete Composite Beam Bridge[J]. Acta Scientiarum Naturalium Universitatis Sunyatseni, 2002, 41(2): 32-36 |
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| Authors: | ZHANG Jun-ping LI Yong-he HUANG Dao-fei |
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| Affiliation: | ZHANG Jun-ping 1,LI Yong-he 1,HUANG Dao-fei 2 |
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| Abstract: | Based on the results of theoretic analysis, calculated example and site test, the feasibility of adopting jacking-up technique to continuous composite steel-concrete beam bridge for introducing prestress to concrete slab is discussed, and then the problems on shrinkage and creep effect calculation of composite steel-concrete beam is pointed out. Moreover, the formulae for time-dependent effect calculation of composite beam, involving bond-sliding influence between steel girder and concrete slab are proposed. Finally,the problems on adopting jacking-up technique to continuous composite steel-concrete beam are explored. |
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| Keywords: | continuous steel-concrete composite beam jacking-up technique shrinkage and creep concrete slab |
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