新型斜拉悬模设计的试验研究与理论分析

发布时间：2018-05-10 10:56

本文选题：高空悬挑结构 + 斜拉悬模体系　；参考：《青岛理工大学》2013年硕士论文

【摘要】：近年来，随着我国经济和社会发展水平的不断提升，人们对建筑物的要求不再局限于满足必要的生活和办公，对建筑的外观、造型以及与环境的适应性也提出了越来越高的要求。随着这种趋势，，各种建筑形式不断涌现出来，其中含有大悬挑结构的悬挑建筑是其中常见的形式之一。大悬挑结构一般设置在建筑物上部，高度较大，施工时面临着高空作业的特点。目前用于高空大悬挑结构的设计方法和施工经验都相对较少，高空大悬挑建筑在设计与施工过程中仍然存在着许多的难点，例如悬挑支模架的设计、高空作业的安全性和施工组织等。本文总结了现阶段常用悬挑脚手架的类型，提出了一种新型斜拉悬挑脚手架。并以实际工程为例，对该理论进行了验证。具体内容如下：首先，本文分析几种常用悬挑脚手架的优缺点和应用范围，并对悬挑脚手架进行了受力分析。通过对比分析斜拉点位于外挑构件不同位置时对大悬挑脚手架各个构件的受力影响，给出了大悬挑脚手架斜拉点位置的确定公式，形成一种应用于大悬挑结构的新型斜拉悬挑脚手架。其次，对提出的应用于大悬挑结构的新型斜拉悬挑脚手架进行整体稳定性分析，得出整体支撑系统的平面布置原则；对其斜拉杆的均衡受力及相关节点的连接进行了数值模拟分析和试验研究，并提出了均衡受力的施工控制。第三，进行了新型斜拉悬挑脚手架的斜拉杆对混凝土结构的影响分析。重点对斜拉杆埋设不同角度时混凝土梁的受力进行分析,提出了对混凝土结构构件尺寸、配筋等的基本要求。最后，根据以上的研究内容，对新型斜拉悬挑脚手架提出了设计构造与施工要求，形成一套系统的针对高空大悬挑结构施工的新型斜拉悬模支撑体系。
[Abstract]:In recent years, with the development of economy and society in our country, people's demands on buildings are no longer limited to satisfying the necessary living and office, but also to the appearance of the buildings. Modeling and adaptability to the environment also put forward higher and higher requirements. With this trend, a variety of architectural forms continue to emerge, in which the large cantilever structure is one of the common forms. The large cantilever structure is generally located in the upper part of the building, and is faced with the characteristics of aerial work. At present, there are relatively few design methods and construction experience for high-altitude large cantilever structures. There are still many difficulties in the design and construction of high-altitude large cantilever structures, such as the design of cantilevered formwork. Safety and construction organization of aerial work. In this paper, the types of cantilever scaffolding are summarized, and a new type of cable-stayed scaffolding is proposed. The theory is verified by taking the actual project as an example. The details are as follows: Firstly, this paper analyzes the advantages and disadvantages of several kinds of commonly used cantilever scaffolding and its application scope, and analyzes the force of the cantilever scaffold. By comparing and analyzing the influence of different positions of cable-stayed point on each member of large cantilever scaffold, the formula for determining the position of cable-stayed point of large cantilever scaffold is given. A new cable-stayed suspension scaffold is formed for large cantilever structure. Secondly, the overall stability of the new cable-stayed cantilever scaffold applied to the large cantilever structure is analyzed, and the plane layout principle of the whole bracing system is obtained. Numerical simulation analysis and experimental study on the equilibrium force of the inclined strut and the connection of the related joints are carried out, and the construction control of the equalization force is put forward. Thirdly, the influence of the new cable-stayed suspension scaffold on the concrete structure is analyzed. The stress of concrete beam with different angles of oblique tension bar is analyzed, and the basic requirements for the size and reinforcement of concrete structure are put forward. Finally, according to the above research content, the design structure and construction requirements of the new cable-stayed cantilever scaffold are put forward, and a new type of cable-stayed suspended formwork support system is formed for the construction of high-altitude and large-cantilever structure.
【学位授予单位】：青岛理工大学
【学位级别】：硕士
【学位授予年份】：2013
【分类号】：TU973;TU974

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