均安水道特大桥方案设计研究
发布时间：2019-05-23 15:25
【摘要】：本文以江（门）珠（海）高速公路北延线佛山段均安水道特大桥研究对象，对桥型方案进行了综合比选，，确定了合理可行的方案，并对推选出的最优方案进行了详尽的静动力计算分析。 首先，根据工程桥位处的主要控制因素以及桥梁使用功能等方面的技术资料拟定了三种桥型方案，分别是：双塔双索面砼斜拉桥、双塔单索面矮塔斜拉桥、钢-砼混合梁连续刚构桥。然后对三个方案的优缺点进行阐述，综合比选，得出双塔双索面砼斜拉桥方案为推荐方案。 其次，采用有限元分析软件对推荐方案的施工阶段和运营阶段进行了静力分析，同时进行了动力分析，给出了自振频率和对应的振型，根据动力分析模型和地震动输入，对桥梁各部位进行了E1和E2阶段内力验算。结果表明，静力分析满足《桥规》要求，动力分析满足《桥梁抗震规范》要求。 最后，对主塔锚固区、主梁锚固区、桥面板进行了局部分析，对承台系梁配筋方式进行比选分析，为设计提供参考。 本文研究成果已应用于指导实际工程，为该桥的两阶段初步设计和施工图设计提供了主要依据，同时可为同类桥梁方案的比选提供参考。
[Abstract]:In this paper, based on the research object of Junan Waterway Bridge in Foshan section of the north extension line of Yangtze River (Men) Pearl (Sea) Expressway, the bridge type schemes are comprehensively compared and selected, and the reasonable and feasible schemes are determined. The static and dynamic calculation and analysis of the selected optimal scheme are carried out in detail. First of all, according to the main control factors and the technical data of bridge use function, three kinds of bridge schemes are drawn up, which are: double tower and double cable plane concrete cable-stayed bridge, double tower single cable plane low tower cable-stayed bridge, Steel-concrete hybrid beam continuous rigid frame bridge. Then the advantages and disadvantages of the three schemes are expounded, and the two-tower and double-cable concrete cable-stayed bridge scheme is obtained as the recommended scheme. Secondly, the static analysis of the construction stage and operation stage of the recommended scheme is carried out by using finite element analysis software, and the dynamic analysis is carried out at the same time, and the natural frequency and corresponding vibration mode are given. According to the dynamic analysis model and ground motion input, The internal force of E _ 1 and E _ 2 stages was checked and calculated in each part of the bridge. The results show that the static analysis meets the requirements of bridge gauge and the dynamic analysis meets the requirements of bridge seismic code. Finally, the Anchorage area of the main tower, the anchoring area of the main beam and the deck of the bridge are analyzed locally, and the reinforcement mode of the cap beam is compared and analyzed, which provides a reference for the design. The research results of this paper have been applied to guide the practical project, which provides the main basis for the two-stage preliminary design and construction drawing design of the bridge, and can also provide a reference for the comparison and selection of similar bridge schemes.
【学位授予单位】：华南理工大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：U442.5
本文编号：2484014
[Abstract]:In this paper, based on the research object of Junan Waterway Bridge in Foshan section of the north extension line of Yangtze River (Men) Pearl (Sea) Expressway, the bridge type schemes are comprehensively compared and selected, and the reasonable and feasible schemes are determined. The static and dynamic calculation and analysis of the selected optimal scheme are carried out in detail. First of all, according to the main control factors and the technical data of bridge use function, three kinds of bridge schemes are drawn up, which are: double tower and double cable plane concrete cable-stayed bridge, double tower single cable plane low tower cable-stayed bridge, Steel-concrete hybrid beam continuous rigid frame bridge. Then the advantages and disadvantages of the three schemes are expounded, and the two-tower and double-cable concrete cable-stayed bridge scheme is obtained as the recommended scheme. Secondly, the static analysis of the construction stage and operation stage of the recommended scheme is carried out by using finite element analysis software, and the dynamic analysis is carried out at the same time, and the natural frequency and corresponding vibration mode are given. According to the dynamic analysis model and ground motion input, The internal force of E _ 1 and E _ 2 stages was checked and calculated in each part of the bridge. The results show that the static analysis meets the requirements of bridge gauge and the dynamic analysis meets the requirements of bridge seismic code. Finally, the Anchorage area of the main tower, the anchoring area of the main beam and the deck of the bridge are analyzed locally, and the reinforcement mode of the cap beam is compared and analyzed, which provides a reference for the design. The research results of this paper have been applied to guide the practical project, which provides the main basis for the two-stage preliminary design and construction drawing design of the bridge, and can also provide a reference for the comparison and selection of similar bridge schemes.
【学位授予单位】：华南理工大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：U442.5
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