基于绿色建筑的高层剪力墙结构优化设计

发布时间：2018-01-25 22:27

本文关键词： 绿色建筑碳排量剪力墙结构优化　出处：《长安大学》2015年硕士论文　论文类型：学位论文

【摘要】：建筑行业是全球能耗最大的行业之一,同时也是二氧化碳等温室气体排放的重要来源。随着环境污染、能源危机等全球性问题日益突出。大力发展绿色建筑实现建筑领域的可持续发展势在必行。绿色建筑是在建筑的全寿命周期内,最大限度地节约资源、保护环境和减少污染、减少碳排放量,与自然和谐共生的建筑。本文以高层剪力墙结构作为研究对象,以减少建筑结构体系碳排量使建筑更加绿色作为优化设计目标,进行的主要研究内容如下:(1)分析以建筑碳排放量来评价绿色建筑科学性,确定基于建筑全生命周期评价理论的建筑碳体系排放量的计算的基础数据,得出混凝土结构体系中主要建材的碳排放因子。总结得出结构体系碳排放量的计算公式,为定量评价结构体系的绿色程度奠定基础。(2)介绍了剪力墙结构抗震计算及内力、位移的计算方法,并给出剪力墙抗震布置的一般原则。同时介绍高层剪力墙结构优化设计的概念、数学模型,并在此基础上确定基于绿色建筑的高层剪力墙结构优化设计的基本思路。(3)以西安某一高层剪力墙结构住宅楼作为算例,以剪力墙的布置和数量、剪力墙的厚度作为优化设计变量,利用SATWE软件建模计算分析。得出通过优化剪力墙的布置、减少剪力墙的数量、减小剪力墙的厚度能够优化结构抗震性能,同时减少结构体系的碳排量。(4)对工程实例进行两次优化,初步优化以剪力墙的布置和数量作为优化设计变量,再次优化以剪力墙厚度和结构的材料强度作为优化设计变量。优化后结构受力性能、抗震性能、刚度变得更加合理,结构体系的碳排放量明显减小。总结两次优化设计的思路,得出基于绿色建筑的高层剪力墙结构优化设计途径。为设计人员进绿色结构设计和结构优化提供参考。
[Abstract]:The construction industry is one of the most energy-consuming industries in the world, and it is also an important source of greenhouse gas emissions such as carbon dioxide. Energy crisis and other global problems are increasingly prominent. It is imperative to vigorously develop green buildings to achieve sustainable development in the field of architecture. Green building is to save resources to the maximum extent in the whole life cycle of buildings. In order to protect the environment and reduce pollution, reduce carbon emissions, and harmonious with the nature of the building. This paper takes the high-rise shear wall structure as the research object. In order to reduce the carbon emission of the building structure system to make the building more green as the optimization design objective, the main research contents are as follows: 1) Analysis to evaluate the scientific nature of green building by building carbon emissions. To determine the basic data for the calculation of the carbon emissions of building based on the theory of building life cycle evaluation. The carbon emission factors of the main building materials in the concrete structure system are obtained. For the quantitative evaluation of the green degree of the structural system, the paper introduces the seismic calculation of the shear wall structure and the calculation method of the internal force and displacement. At the same time, the concept and mathematical model of optimization design of high-rise shear wall structure are introduced. On this basis, the basic idea of the optimization design of high-rise shear wall structure based on green building is determined. Taking a high-rise shear wall structure residential building in Xi'an as an example, the layout and quantity of shear wall are taken as an example. The thickness of shear wall is taken as the variable of optimization design, and the SATWE software is used to model and calculate the analysis. It is concluded that the quantity of shear wall can be reduced by optimizing the arrangement of shear wall. Reducing the thickness of the shear wall can optimize the seismic performance of the structure and reduce the carbon displacement of the structure system. Thirdly, the shear wall thickness and the material strength of the structure are taken as the optimum design variables. After optimization, the mechanical performance, seismic performance and stiffness of the structure become more reasonable. The carbon emission of the structure system is obviously reduced. The optimal design approach of high-rise shear wall structure based on green building is obtained, which provides a reference for designers to design green structure and optimize structure.
【学位授予单位】：长安大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TU973.16

【共引文献】