钢—混凝土组合结构垂直总装测试厂房结构设计研究

发布时间：2018-02-03 03:35

本文关键词： 垂直总装测试厂房钢-混凝土组合结构结构设计风洞试验　出处：《清华大学》2015年硕士论文　论文类型：学位论文

【摘要】：垂直总装测试厂房是航天发射场技术区最重要的工业建筑之一,是实现航天发射场垂直组装、垂直测试、垂直整体运输“三垂模式”的关键设施。目前,国内外航天发射场中垂直总装测试厂房大多都采用钢结构,有部分采用混凝土结构,还没有采用钢-混凝土组合结构的垂直总装测试厂房。本文以我国正在新建的航天发射场垂直总装测试厂房为工程背景,在总结以往国内外垂直总装测试厂房的结构形式和特点的基础上对钢-混凝土组合结构垂直总装测试厂房的结构体系进行了系统的研究。本文对比分析了混凝土结构、钢结构、钢-混凝土组合结构三种形式垂直总装测试厂房的优缺点及工程造价,研究了钢-混凝土组合结构垂直总装测试厂房的适用性。针对垂直总装测试厂房大厅屋盖的特点,选用了钢筋混凝土箱型梁屋盖、钢桁架屋盖、单层铰接钢屋盖三种屋盖结构形式进行选型比较,研究其对主体结构的影响,各自的优缺点,施工难易程度以及其技术经济性等。通过对垂直总装测试厂房的核心构件活动升降平台和垂直转运大门的特点和需求分析,对支撑活动升降平台的固定平台和连接垂直转运大门的大门门框进行专门的研究,确定了悬挑桁架的固定平台方案和“凸”型整体式钢桁架大门门框的结构方案。此外,本文应用SATWE、PMSAP、ETABS等结构设计软件对钢-混凝土组合结构垂直总装测试厂房在各种工况下的受力情况进行计算分析,并将几种软件的计算结果进行了比较,以验证计算结果的准确性。考虑到本工程位于我国沿海的强台风登陆区,为了确保结构的抗风安全,本文还通过风洞试验对垂直总装测试厂房开展了抗风性能研究,试验给出了垂直总装测试厂房在大门闭合和开启两种状态下的风压分布情况,为厂房结构和构件的抗风设计提供试验数据和指导。钢-混凝土组合结构垂直总装测试厂房的结构设计研究结果表明:钢-混凝土组合结构垂直总装测试厂房作为航天发射场垂直总装测试厂房的一种新型结构形式,具有安全可靠、技术先进、经济合理等优点,可以在今后的航天发射场垂直总装测试厂房及类似建筑中进行推广应用。钢-混凝土组合结构垂直总装测试厂房的结构设计研究是对航天发射场垂直总装测试厂房结构体系的补充,研究中得出的一些做法和建议,可为今后航天发射场垂直总装测试厂房的结构设计提供参考,具有重要的社会、军事效益。
[Abstract]:Vertical assembly test plant is one of the most important industrial buildings in the technical area of space launch site. It is the key facility to realize vertical assembly, vertical test and vertical transportation of "three vertical modes" in space launch site. The steel structure is mostly used in the vertical assembly test building of the spaceflight launch site at home and abroad, and the concrete structure is used partly. There is no vertical assembly test building with steel-concrete composite structure. This paper takes the new space launch site vertical assembly test building as the engineering background. On the basis of summing up the structural forms and characteristics of the vertical assembly test building at home and abroad, the structural system of the steel concrete composite structure vertical assembly test building is studied systematically. The concrete is compared and analyzed in this paper. Structure. The advantages and disadvantages and engineering cost of steel structure, steel-concrete composite structure and three forms of vertical assembly test workshop. According to the characteristics of the hall roof of the vertical assembly test workshop, the reinforced concrete box beam roof and steel truss roof are selected. Three types of single-story hinged steel roof structure were selected and compared to study their influence on the main structure and their advantages and disadvantages. Through the analysis of the characteristics and requirements of the moving lifting platform and vertical transfer gate of the core components of the vertical assembly test plant. The special research is carried out on the fixed platform supporting the movable lifting platform and the door frame connected to the vertical transfer gate. The fixed platform scheme of cantilever truss and the structural scheme of "convex" integral steel truss gate door frame are determined. In addition, SATWEN PMSAP is applied in this paper. The structural design software, such as ETABS, is used to calculate and analyze the stress situation of the steel concrete composite structure vertical assembly test building under various working conditions, and the calculation results of several kinds of software are compared. In order to verify the accuracy of the calculation results, considering that the project is located in the strong typhoon landing area along the coast of China, in order to ensure the safety of the structure against wind. The wind resistance of the vertical assembly test building is also studied by wind tunnel test. The wind pressure distribution of the vertical assembly test building under the condition of door closure and open is given. The experimental data and guidance are provided for the wind-resistant design of the structure and components of the powerhouse. The structural design results of the steel-concrete composite structure vertical assembly test powerhouse show that:. Steel-concrete composite structure vertical assembly test building as a new type of space launch site vertical assembly test building. It has the advantages of safety and reliability, advanced technology, reasonable economy and so on. It can be popularized and applied in the future space launch site vertical assembly test building and similar building. The structural Design Research of Steel-Concrete Composite structure Vertical Assembly Test Factory is for the Space launch site Vertical Assembly Test Plant. The supplement of the housing structure system. Some methods and suggestions obtained from the study can provide a reference for the structural design of the space launch site vertical assembly test building in the future, and have important social and military benefits.
【学位授予单位】：清华大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TU398.9

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