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| 钢-混凝土组合连续梁桥长期荷载效应的理论研究 | |
| 引用本文： | 程晓东,程莉莎,张弦.钢-混凝土组合连续梁桥长期荷载效应的理论研究[J].公路交通科技,2004,21(7):58-62. |
| 作者姓名： | 程晓东 程莉莎 张弦 |
| 作者单位： | 1. 杭州市城市基础设施开发总公司,浙江,杭州,310006 2. 西湖区城乡规划管理中心,浙江,杭州,310007 3. 河南省新开元路桥工程咨询有限公司,河南,郑州,450016 |
| 摘 要： | 基于三维粘弹性理论,构造了考虑混凝土徐变的三维有限元分析模型,在实验研究的基础上,拟合了模型中的三个参数,以某对两跨钢 混凝土组合连续梁桥为例,研究了长期载荷作用下的混凝土的徐变的发展情况,并给出了徐变对结构变形,如跨中挠度和轴向应变等的影响规律曲线,研究成果可供有关工程设计和实践参考。 |
| 关 键 词： | 钢-混凝土组合梁桥 混凝土徐变 粘弹性理论 三维有限元分析 |
| 文章编号： | 1002-0268(2004)07-0058-03 |
| 修稿时间： | 2003年4月14日 |
Theoretical Investigation of Long-term Performance ofSteel-Concrete Composite Continuous Girder Bridge |
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| CHENG Xiaodong,CHENG Lisha,ZHANG Xian.Theoretical Investigation of Long-term Performance ofSteel-Concrete Composite Continuous Girder Bridge[J].Journal of Highway and Transportation Research and Development,2004,21(7):58-62. | |
| Authors: | CHENG Xiaodong CHENG Lisha ZHANG Xian |
| Institution: | CHENG Xiaodong~1,CHENG Lisha~2,ZHANG Xian~3 |
| Abstract: | Based on threedimensional viscoelastic theory,this paper proposes a threedimensional finite element model for concrete creep analysis,in which a linear three parameters visoelastic model is adopted.The three parameters of the proposed model are fitted,based on the experimental measurements.In the end,the influential regularities of concrete creep on deformations and strains of the steelconcrete composite continuous girder bridge are studied by the proposed method.The relation curves of deflection and axial strain with load time are given in this paper.Those research results can be consulted in the actual engineering design and practice. |
| Keywords: | Steelconcrete composite continuous girder bridge Concrete creep Viscoelastic theory Threedimensional finite element method |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |