新型轻钢楼盖静力性能试验及设计方法研究
发布时间：2018-08-09 16:10
【摘要】：楼盖是结构的重要组成部分,本文提出了一种适用于多种结构体系,符合装配式建筑发展要求的新型轻钢楼盖系统。论文针对该系统展开试验研究、有限元分析与理论分析,得到该楼盖的设计计算方法,论文主要工作如下:1.通过对复合楼盖进行竖向静力荷载试验,研究不同平面尺寸及不同龙骨截面开口型式的楼盖试件的不同承载力性能,利用位移计及应变片来观测试件的位移及应变变化,总结试件破坏规律。2.运用ABAQUS有限元软件建立楼盖模型,通过有限元模拟分析对试验结果进行对比验证,并对试验设计进行补充。利用ABAQUS有限元软件补充探究新型轻钢楼盖结构体系承载力性能的影响因素,对楼盖跨度、楼盖宽度、楼盖厚度、龙骨钢材厚度及龙骨截面开口型式五种承载力性能可能影响因素进行探究并得到相应结论。3.对新型轻钢楼盖设计方法进行研究,推导出楼盖在正常使用阶段的挠度公式,推导出楼盖在承载能力极限状态下的抗弯承载力公式,并总结出新型轻钢楼盖基本设计规定,基本设计规定内容包括设计原则及构造规定。论文提出新型轻钢楼盖设计方法,为新型轻钢楼盖系统在工程中的应用提供依据。
[Abstract]:Floor is an important part of structure. This paper presents a new type of light steel floor system suitable for various structural systems and meeting the requirements of the development of prefabricated buildings. In this paper, the experimental research, finite element analysis and theoretical analysis of the system are carried out, and the design and calculation method of the floor is obtained. The main work of this paper is as follows: 1. Through the vertical static load test of composite floor, the different bearing capacity of floor specimens with different plane sizes and different keel cross-section openings are studied. The displacement and strain changes of the specimens are observed by means of displacement meters and strain gauges. Summarize the failure rule of the specimen. The ABAQUS finite element software is used to establish the floor model. The test results are compared and verified by the finite element simulation analysis, and the experimental design is supplemented. The ABAQUS finite element software is used to study the influencing factors of the bearing capacity of the new light steel floor structure system, which can affect the span, width and thickness of the floor, as well as the width of the floor, the width of the floor and the thickness of the floor. The influence factors of steel thickness and cross-section opening type of keel are discussed and the corresponding conclusion is obtained. This paper studies the design method of new light steel floor, deduces the deflection formula of floor in normal service stage, deduces the formula of flexural bearing capacity of floor under the limit state of bearing capacity, and summarizes the basic design rules of new light steel floor. Basic design requirements include design principles and construction provisions. In this paper, a new design method of light steel floor is put forward, which provides the basis for the application of new light steel floor system in engineering.
【学位授予单位】：北京交通大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TU392.5
本文编号：2174628
[Abstract]:Floor is an important part of structure. This paper presents a new type of light steel floor system suitable for various structural systems and meeting the requirements of the development of prefabricated buildings. In this paper, the experimental research, finite element analysis and theoretical analysis of the system are carried out, and the design and calculation method of the floor is obtained. The main work of this paper is as follows: 1. Through the vertical static load test of composite floor, the different bearing capacity of floor specimens with different plane sizes and different keel cross-section openings are studied. The displacement and strain changes of the specimens are observed by means of displacement meters and strain gauges. Summarize the failure rule of the specimen. The ABAQUS finite element software is used to establish the floor model. The test results are compared and verified by the finite element simulation analysis, and the experimental design is supplemented. The ABAQUS finite element software is used to study the influencing factors of the bearing capacity of the new light steel floor structure system, which can affect the span, width and thickness of the floor, as well as the width of the floor, the width of the floor and the thickness of the floor. The influence factors of steel thickness and cross-section opening type of keel are discussed and the corresponding conclusion is obtained. This paper studies the design method of new light steel floor, deduces the deflection formula of floor in normal service stage, deduces the formula of flexural bearing capacity of floor under the limit state of bearing capacity, and summarizes the basic design rules of new light steel floor. Basic design requirements include design principles and construction provisions. In this paper, a new design method of light steel floor is put forward, which provides the basis for the application of new light steel floor system in engineering.
【学位授予单位】：北京交通大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TU392.5
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