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1、 密 级： 学校代码：10075 分类号： 学 号：20091199 工学硕士学位论文 某机库屋顶网架结构整体提升 关键技术分析 学位申请人： 赵加胜 指 导 教 师 ： 刚芹果 教授 学 位 类 别 ： 工学硕士 学 科 专 业 ： 固体力学 授 予 单 位 ： 河北大学 答 辩 日 期 ： 二一二年五月 Classified Index： CODE: 10075 U.D.C.： NO: 20091199 A Dissertation for the Degree of M. Engineering Key technology analysis of a hangar roof truss
2、 structure as a whole lifting Candidate： Zhao jiasheng Supervisor： Prof. Gang Qinguo Academic Degree Applied for： Master of Engineering Specialty： Solid Mechanics University： Hebei University Date of Defense： May, 2012 摘 要 I 摘 要 钢结构迅猛发展，钢结构体系越来越向，新颖，复杂，大跨度的方向发展，这些结 构必然对施工方法提出挑战，传统施工方法不在满足施工的要求，各类机械化
3、强，施工 效率高的施工工艺应运而生，各类施工工艺的产生必然为施工力学分析带来新的课题， 新的施工工艺所带来的施工过程中的问题必然与以前施工过程中的力学性态有所不同， 传统的施工过程中的力学计算方法将无法满足现在施工过程的需要， 所以对于新型施工 方法优化设计以及力学研究具有现实意义。 本文以某机库屋顶网架结构整体吊装为实际背景， 首先针对本工程实际情况以多种 施工方法进行对比优化；采用上弦球作为吊点，下弦球作为吊点与上下弦球作为吊点三 种方案进行对比选择合理吊点；对所采用的吊点吊装方式进行布置塔架优化。通过上面 三种优化形式选择选取合适了较为适合本工程的吊装方案。 通过上述设计吊装结构形式基本
4、确定，在整体结构中网架塔吊缆风绳三个结构形 式， 其中网架塔吊两种结构形式现在应用比较成熟但是缆风绳受力分析人们对其在吊装 过程中模拟仍然存在问题，本文通过对于缆风绳模拟分析，与不同工况模拟方式数据对 比对问题予以解答。 网架结构整体采用 ANSYS 软件建立模型进行受力分析，对网架在整体提升过程中 有可能出现的 9 中不均匀提升工况进行模拟并对其进行受力分析。 通过对不均匀工况的 受力分析，查看不均匀工况对整体结构影响并对各种工况进行对比提取出较危险工况。 此外本文采用 ANSYS 软件，对网架吊装完成后撤出塔吊对整个网架结构影响进行 了受力分析，通过上述分析使人们了解在网架结构整体吊装过程
5、后期，网架杆件内力变 化情况，为以后此类工程施工提供必要的数据。 关键词 整体吊装 网架 优化设计 不均匀提升 危险工况 缆风绳 Abstract II Abstract As the rapid development of steel structure, steel structure system is developing towards more and more new and complex. These structures are bound to challenge the construction methods. The traditional constructio
6、n method does not meet the requirements of construction, and various types of mechanized construction of high efficiency construction process came into being. All types of construction techniques to produce the inevitable construction mechanics to bring new issues, and new construction technology in
7、 the construction process must be different from the mechanical state of the previous construction process, mechanical calculations in the traditional construction process will not be able to meet the needs of the construction process, so for the new construction methods to optimize the design and m
8、echanics research has practical significance. Based on the overall lifting of a hangar roof truss structure as the actual background, this paper firstly uses a variety of construction methods to optimize and contrast to the actual situation of the project and winding the ball as a hanging point last
9、 quarter ball as a hanging point up and down the string ball as a hanging point three kinds of the comparison of the program to select reasonable lifting point; Last, selecting the most appropriate optimized by the above three forms of select more suitable for the lifting of this project. Though det
10、ermining the basic structure of the above design lifting crane, and wind cable rope of three structural forms, of which application of truss tower crane in which the two structural forms more mature, but the wind cable rope stress analysis of its lifting process simulation problems. Though the analy
11、sis of different wind cable- for rope simulation, this article answered the different simulation method and gives the answer. Network structure used software ANSYS as a whole to carry model stress analysis and analyzed 9 uneven improve working conditions on the grid in the overall upgrade process. V
12、iew the non- uniform conditions on the overall structure of the impact and a variety of conditions compared to extract more dangerous working conditions. In addition, Network structure used software ANSYS as a whole to carry model stress analysis, lifting completed on the grid after the withdrawal o
13、f the crane on the entire network structure affect the stress analysis. Through the above analysis so that people understand the lifting process late in the network structure as a whole, the internal forces in the truss rods to provide the necessary data for the future of such construction. Abstract
14、 III Keywords integral lifting grid optimize the design uneven improve dangerous working conditions wind cable rope 目 录 IV 目 录 第 1 章 绪 论1 1.1 三维空间钢结构施工技术发展的基本现状1 1.2 大跨度钢结构施工力学研究现状 11 1.2.1 针对施工过程中存在关键问题的分析研究的基本现状11 1.2.2 整体吊装研究现状 12 1.2.3 索张拉分析研究的基本现状12 1.2.4 钢结构施工方案优化设计研究现状 14 1.3 课题研究背景及研究意义 15 1.4 本文研究内容16 第 2 章 网架吊装方案优选设计
