落地式钢管柱广告牌结构的加固设计研究

发布时间：2018-02-21 21:19

本文关键词： 落地式钢管柱广告牌结构加固内套钢管加固法 SAP2000 静力分析模态分析　出处：《河北工程大学》2011年硕士论文　论文类型：学位论文

【摘要】：落地式广告牌属于高耸构筑物,因其结构的特殊性而造成的安全事故和由此引起的责任纠纷在全国各地时有发生。落地式广告牌受风荷载影响严重,在长期的使用过程中容易发生安全事故,有些广告牌结构需要进行加固。本文在已有研究成果的基础上,以某落地式钢管柱广告牌加固工程为例,依据《户外广告设施钢结构技术规程》(CECS148:2003)对落地式钢管柱广告牌结构的加固设计进行了探讨。本文系统分析了广告牌结构的受力特点,广告牌结构的设计及加固理论,对比传统加固方法的优缺点,提出了落地式钢管柱广告牌的内套钢管加固法。利用有限元软件SAP2000分别对钢管混凝土柱、内套钢管柱及大直径钢管柱广告牌结构进行了静力分析和模态分析,重点对比不同的柱截面形式对广告牌结构顶端位移的影响,指出了内套钢管加固法的合理性。将内套钢管加固法应用于工程实践,应用结果表明采用内套钢管加固法加固广告牌工程,可以提高立柱刚度,控制结构顶端位移,同时能解决面板与立柱的连接问题,内套钢管加固法加固控制效果明显,经济合理、施工简便、工期短,为同类结构的加固提供了一种可行的方法和途径。
[Abstract]:Floor billboards belong to towering structures. The safety accidents caused by the particularity of their structures and the resulting liability disputes occur from time to time in various parts of the country. Landing billboards are seriously affected by wind loads. During long-term use, safety accidents may occur and some billboard structures need to be strengthened. On the basis of the existing research results, this paper takes the reinforcement project of a floor steel pipe column billboard as an example. According to "Technical Specification for Outdoor Advertising facilities Steel structure" (CECS 148: 2003), the reinforcement design of billboard structure of floor type steel pipe column is discussed. The stress characteristics of billboard structure, the design of billboard structure and the reinforcement theory are systematically analyzed in this paper. Compared with the advantages and disadvantages of the traditional reinforcement methods, the paper puts forward the inner sleeve steel tube reinforcement method of the floor steel tube column billboard. The finite element software SAP2000 is used to analyze the concrete filled steel tube column, respectively. The static analysis and modal analysis of the inner steel tube column and the large diameter steel tube column billboard structure are carried out, and the effects of different column cross-section on the top displacement of the billboard structure are compared. This paper points out the rationality of the method of reinforcing steel tube with inner sleeve, and applies the method of strengthening steel tube with inner sleeve in engineering practice. The application results show that the reinforcement method of steel tube with inner sleeve can improve the stiffness of column and control the displacement of the top of the structure. At the same time, it can solve the connection problem between the face slab and the column. The reinforcement method of the inner sleeve steel pipe has obvious control effect, reasonable economy, simple construction and short construction period, which provides a feasible method and way for the reinforcement of the similar structure.
【学位授予单位】：河北工程大学
【学位级别】：硕士
【学位授予年份】：2011
【分类号】：TU392.3

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