独塔斜拉桥静力分析和桥塔局部分析
发布时间：2018-08-12 07:34
【摘要】：近年来，，斜拉桥在我国迅速发展，由于独塔斜拉桥在美学上的优势，目前采用这种形式的桥梁越来越多，既有采用完全混凝土或钢梁的，也有主钢边混的混合梁。本文以南淝河大桥为工程背景，对独塔斜拉桥进行静力计算分析，同时对其稳定特性进行研究。该桥为塔梁墩固结体系，是合肥市目前单跨跨度最大、主塔柱最高、宽度最宽的跨河桥。 文中回顾了斜拉桥和独塔斜拉桥的起源及其在国内外的发展概况，并扼要说明了独塔斜拉桥的结构特点和适用范围。利用有限元软件Midas/Civil2012建立全桥计算模型，对其施工阶段和运营阶段的受力情况及变形特征进行计算分析。根据荷载工况建立Midas模型模拟其屈曲模态，对该桥的稳定特性进行分析。应用ANSYS建立空间计算模型，分析在施工状态下第三对斜拉索张拉时混凝土桥塔的空间受力特性。分析研究的成果将为南淝河大桥施工控制提供参考，也可为同类型桥梁的设计提供参考。
[Abstract]:In recent years, cable-stayed bridges have developed rapidly in China. Due to the aesthetic advantages of single-tower cable-stayed bridges, more and more bridges are used in this form. Taking Nanfeihe River Bridge as the engineering background, the static calculation and analysis of the single tower cable-stayed bridge are carried out in this paper, and the stability characteristics of the bridge are also studied. The bridge is a consolidation system of tower and beam piers. It is the largest single span bridge with the highest main tower column and the widest width in Hefei at present. In this paper, the origin of cable-stayed bridges and single-tower cable-stayed bridges and their development at home and abroad are reviewed, and the structural characteristics and applicable scope of single-pylon cable-stayed bridges are briefly described. The finite element software Midas/Civil2012 is used to establish the calculation model of the whole bridge, and the stress and deformation characteristics of the bridge during the construction and operation stages are calculated and analyzed. Midas model is established to simulate the buckling mode of the bridge according to the load condition, and the stability characteristics of the bridge are analyzed. The spatial calculation model is established by using ANSYS to analyze the spatial stress characteristics of the concrete bridge tower under the third cable tension under the construction condition. The results of analysis and research will provide a reference for the construction control of Nanfeihe River Bridge and the design of the same type of bridge.
【学位授予单位】：合肥工业大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：U448.27
本文编号：2178356
[Abstract]:In recent years, cable-stayed bridges have developed rapidly in China. Due to the aesthetic advantages of single-tower cable-stayed bridges, more and more bridges are used in this form. Taking Nanfeihe River Bridge as the engineering background, the static calculation and analysis of the single tower cable-stayed bridge are carried out in this paper, and the stability characteristics of the bridge are also studied. The bridge is a consolidation system of tower and beam piers. It is the largest single span bridge with the highest main tower column and the widest width in Hefei at present. In this paper, the origin of cable-stayed bridges and single-tower cable-stayed bridges and their development at home and abroad are reviewed, and the structural characteristics and applicable scope of single-pylon cable-stayed bridges are briefly described. The finite element software Midas/Civil2012 is used to establish the calculation model of the whole bridge, and the stress and deformation characteristics of the bridge during the construction and operation stages are calculated and analyzed. Midas model is established to simulate the buckling mode of the bridge according to the load condition, and the stability characteristics of the bridge are analyzed. The spatial calculation model is established by using ANSYS to analyze the spatial stress characteristics of the concrete bridge tower under the third cable tension under the construction condition. The results of analysis and research will provide a reference for the construction control of Nanfeihe River Bridge and the design of the same type of bridge.
【学位授予单位】：合肥工业大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：U448.27
【参考文献】
相关期刊论文 前7条
1 汪至刚,郑宪政,龚一琼,许荣华;余姚弯塔斜拉桥总体结构设计[J];公路;2004年05期
2 陈铁冰,张伟;大跨度斜拉桥极限承载能力研究[J];公路交通科技;2004年04期
3 郑宪政,张松达,汪至刚,龚一琼,张建达;余姚弯塔斜拉桥设计与施工[J];桥梁建设;2004年05期
4 陈开利;独塔斜拉桥的建设与展望[J];桥梁建设;1998年03期
5 伏魁先,刘学信,黄华彪;斜拉桥面内整体失稳分析[J];铁道学报;1993年04期
6 孙叔禹;谢尉鸿;;赣州飞龙岛大桥斜拉桥设计[J];桥梁建设;2007年03期
7 杨征宇;宋桂峰;楼庄鸿;;我国独塔斜拉桥[J];预应力技术;2007年03期
本文编号：2178356
本文链接：https://www.wllwen.com/kejilunwen/jiaotonggongchenglunwen/2178356.html
