波形钢腹板预应力混凝土部分斜拉桥受力性能研究
发布时间：2019-02-21 17:54
【摘要】：波形钢腹板预应力混凝土部分斜拉桥兼具梁式桥刚度大、斜拉桥重量轻的优点,比预应力混凝土部分斜拉桥的主梁自重更轻、材料利用效率更高,是一种综合性能优异的新型桥梁。但各地设计波形钢腹板预应力混凝土桥的标准与方法不统一,整体仍处在积累经验的阶段。郑州朝阳沟水库大桥建成通车于2015年,其188m主跨是目前波形钢腹板预应力混凝土部分斜拉桥的世界最大跨度。本文以郑州朝阳沟水库大桥为例,系统研究了波形钢腹板预应力混凝土部分斜拉桥的设计方法、标准体系,并借助通用有限元分析程序,分析了郑州朝阳沟水库大桥的静力学性能、动力学性能,主要形成以下研究结论:1.设计波形钢腹板预应力混凝土箱梁桥应在《工程结构可靠性设计统一标准》的框架内,采用各地方专业标准中较全面的技术要求与验算内容。2.朝阳沟水库大桥静力分析表明,大桥的承载能力极限状态、正常使用极限状态、短暂状况构件应力、持久状况构件应力符合我国部颁标准要求,符合波形钢腹板预应力混凝土桥梁各地方标准要求;大桥的风险分析表明,施工期及运营期的结构主要安全风险可控。3.朝阳沟水库大桥模态分析表明,其动力学特性与预应力混凝土部分斜拉桥相似,主梁扭转不会在前六阶模态出现。
[Abstract]:The corrugated steel web prestressed concrete partial cable-stayed bridge has the advantages of large stiffness and light weight of the cable-stayed bridge, which is lighter than that of the prestressed concrete partial cable-stayed bridge, and the material utilization efficiency is higher than that of the prestressed concrete partially cable-stayed bridge. It is a new type of bridge with excellent comprehensive performance. However, the design standards and methods of corrugated steel web prestressed concrete bridges are not uniform, and the whole is still in the stage of accumulated experience. Zhengzhou Chaoyang Gou Reservoir Bridge was built and opened to traffic in 2015. Its 188m main span is the world's largest span of the corrugated steel web prestressed concrete partial cable-stayed bridge. Taking Zhengzhou Chaoyang Gou Reservoir Bridge as an example, the design method, standard system and general finite element analysis program of prestressed concrete partial cable-stayed bridge with corrugated steel webs are studied systematically in this paper. The static and dynamic properties of Zhengzhou Chaoyang Reservoir Bridge are analyzed. The main conclusions are as follows: 1. The design of corrugated steel web prestressed concrete box girder bridge should be based on the framework of the Unified Standard for Reliability Design of Engineering structures and adopt the more comprehensive technical requirements and checking calculation contents of the local professional standards. 2. The static analysis of Chaoyang Reservoir Bridge shows that the ultimate state of the bridge's bearing capacity, the limit state of normal use, the stress of transient members and the stress of long-lasting members meet the requirements of the national standard issued by the Ministry of Foreign Affairs. Meet the requirements of local standards for prestressed concrete bridges with corrugated steel webs; The risk analysis of the bridge shows that the main safety risk of the structure during construction and operation period is controllable. 3. 3. Modal analysis of Chaoyang Reservoir Bridge shows that the dynamic characteristics of the bridge are similar to those of partially prestressed concrete cable-stayed bridges and the torsion of the main beam will not appear in the first six modes.
【学位授予单位】：郑州大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：U441;U448.27
本文编号：2427748
[Abstract]:The corrugated steel web prestressed concrete partial cable-stayed bridge has the advantages of large stiffness and light weight of the cable-stayed bridge, which is lighter than that of the prestressed concrete partial cable-stayed bridge, and the material utilization efficiency is higher than that of the prestressed concrete partially cable-stayed bridge. It is a new type of bridge with excellent comprehensive performance. However, the design standards and methods of corrugated steel web prestressed concrete bridges are not uniform, and the whole is still in the stage of accumulated experience. Zhengzhou Chaoyang Gou Reservoir Bridge was built and opened to traffic in 2015. Its 188m main span is the world's largest span of the corrugated steel web prestressed concrete partial cable-stayed bridge. Taking Zhengzhou Chaoyang Gou Reservoir Bridge as an example, the design method, standard system and general finite element analysis program of prestressed concrete partial cable-stayed bridge with corrugated steel webs are studied systematically in this paper. The static and dynamic properties of Zhengzhou Chaoyang Reservoir Bridge are analyzed. The main conclusions are as follows: 1. The design of corrugated steel web prestressed concrete box girder bridge should be based on the framework of the Unified Standard for Reliability Design of Engineering structures and adopt the more comprehensive technical requirements and checking calculation contents of the local professional standards. 2. The static analysis of Chaoyang Reservoir Bridge shows that the ultimate state of the bridge's bearing capacity, the limit state of normal use, the stress of transient members and the stress of long-lasting members meet the requirements of the national standard issued by the Ministry of Foreign Affairs. Meet the requirements of local standards for prestressed concrete bridges with corrugated steel webs; The risk analysis of the bridge shows that the main safety risk of the structure during construction and operation period is controllable. 3. 3. Modal analysis of Chaoyang Reservoir Bridge shows that the dynamic characteristics of the bridge are similar to those of partially prestressed concrete cable-stayed bridges and the torsion of the main beam will not appear in the first six modes.
【学位授予单位】：郑州大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：U441;U448.27
【参考文献】
相关期刊论文 前9条
1 姚玲玲;郭理学;;大跨度波形钢腹板矮塔斜拉桥[J];公路交通科技(应用技术版);2016年09期
2 赵君黎;李文杰;冯苠;;我国公路钢桥的进与退[J];中国公路;2016年11期
3 张寿荣;毕学工;;中国炼铁的过去、现在与展望[J];炼铁;2015年05期
4 胡旭辉;包飞;顾安邦;;大堰河桥设计和施工[J];公路;2008年01期
5 袁钰;吴京;;高塔型矮塔斜拉桥初探[J];公路;2008年01期
6 陈宝春;彭桂瀚;;部分斜拉桥发展综述[J];华东公路;2004年03期
7 严国敏;日本木曾川桥──主跨275m的4塔混合梁部分斜拉桥[J];国外桥梁;1997年02期
8 李明顺;工程结构可靠度设计统一标准及概率极限状态设计方法概述[J];建筑科学;1992年02期
9 李继华;概率极限状态设计法浅释[J];工业建筑;1988年02期
相关硕士学位论文 前1条
1 谷定宇;矮塔斜拉桥施工控制仿真分析[D];郑州大学;2006年
，本文编号：2427748
本文链接：https://www.wllwen.com/kejilunwen/daoluqiaoliang/2427748.html
