| 张剑,叶见曙.钢筋混凝土多T梁结构的分层壳元计算法[J].水利学报,2006,37(11):1372-1377 |
| 钢筋混凝土多T梁结构的分层壳元计算法 |
| Analysis of structural behavior of reinforced concrete multi-T girders based on layered shell element method |
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| DOI： |
| 中文关键词: 钢筋混凝土多T梁 分层壳元法 支承型式 薄壁结构 |
| 英文关键词: reinforced concrete multi T girders layered shell element method nonlinear analysis support condition thin walled structure |
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| 中文摘要: |
| 分析了钢筋混凝土多T梁不同支承型式对分层壳元法计算结果的具体影响。建立实体退化壳元后，用分层壳元模拟了钢筋混凝土多T梁结构。基于双折线模型和Owen理论考虑了钢筋混凝土非线性效应，有效地模拟了多T梁的开裂、屈服和失效全过程，并深入研究了在简支体系、铰支体系和铰支-弹性支承体系下多T梁的结构响应。通过与钢筋混凝土多T梁的已有试验成果比较，可知理论计算结果与试验数据吻合良好。研究表明，分层壳元法是钢筋混凝土多T梁结构的有效计算方法，铰支-弹性支承型式为合理的支承型式，且该法可用于渡槽等其它薄壁钢筋混凝土结构的计算分析。 |
| 英文摘要: |
| Based on layered shell element method, structural behaviors of reinforced concrete multi T girders are analyzed and the effects of the different manners of modeling of support condition on the reinforced concrete multi T girders are studied.The degraded shell element is derived with which reinforced concrete multi-T girders are modeled. Respectively based on bilinear model and Owen theory, the material nonlinear properties of steel and concrete are considered. Then the processions of cracking, yielding and failure of reinforced concrete multi-T girders are imitated. The structural response of multi T girders in pinned system, hinged system and hinge spring system are studied. Through comparison with available experimental data of multi T girders, the computational results are close. It shows that the structural behaviors of reinforced concrete multi T girders can be rightly studied by using layered shell element method and hinge spring support condition is proper. This method can be used in analyzing aqueduct and other kinds of thin walled reinforced concrete structures. |
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