秸秆草砖墙体竖向承载力试验研究
发布时间：2019-06-20 17:00
【摘要】：随着经济的发展和人们生态节能环保意识的不断提高,世界各国纷纷开始研究将农作物秸秆作为新型材料运用到生态建筑中。秸秆建筑在西方发达国家农村住宅中出现较早,这种秸秆草砖建筑主要以木材组成竖向承重构件,围护结构采用秸秆草砖,此种结构具有自重轻、良好的抗震性能和保温隔热性能,是传统的绿色、节能建筑。近年来,我国北方部分农村地区已经开始秸秆草砖住宅的修建,房屋的承载构件仍采用粘土砖,秸秆草砖仅作为墙体的填充材料。秸秆草砖在建筑中的开发应用,可解决资源、能源短缺问题,同时促进人类社会与生态环境和谐可持续发展。本文在参考大量国内外文献后,进行秸秆草砖墙体试验,ANSYS有限元模拟分析以及对农村秸秆草砖住宅设计方法进行研究。主要工作有:(1)对单层农村秸秆草砖住宅窗间墙体进行竖向承载力试验,介绍秸秆草砖墙体砌筑过程,研究秸秆窗间墙体在竖向荷载作用下受力特点,变形特征、屈服承载力及其破坏形式。试验结果表明该秸秆草砖墙体满足作为农村秸秆草砖单层住宅窗间墙体竖向承载力要求。(2)通过运用ANSYS13.0有限元分析软件对三种秸秆草砖墙体试件模型进行模拟分析,分别是钢丝网水泥砂浆抹灰秸秆草砖墙体W-1模型、木龙骨水泥砂浆抹灰秸秆草砖墙体W-2模型以及水泥砂浆抹灰秸秆草砖墙体W-3模型。通过有限元分析所得荷载-位移曲线与试验结果进行对比,证明模拟方法的正确性,得出不同构造措施对秸秆草砖墙体的影响。(3)介绍了农村节能秸秆草砖住宅结构类型。针对农村秸秆草砖住宅环境及施工特点,对秸秆草砖建筑提出相应的设计方法与相应的构造措施。
[Abstract]:With the development of economy and the continuous improvement of people's awareness of ecological energy conservation and environmental protection, countries all over the world have begun to study the application of crop straw as a new material in ecological buildings. Straw building appeared early in rural housing in western developed countries. This kind of straw brick building is mainly composed of vertical load-bearing components of wood, and straw brick is used in enclosure structure. This structure has light weight, good seismic performance and thermal insulation performance. It is a traditional green and energy-saving building. In recent years, the construction of straw brick house has begun in some rural areas of northern China. Clay brick is still used as the bearing component of the house, and straw brick is only used as the filling material of the wall. The development and application of straw brick in architecture can solve the problem of shortage of resources and energy, and promote the harmonious and sustainable development of human society and ecological environment. In this paper, after referring to a large number of domestic and foreign literature, straw brick wall test, ANSYS finite element simulation analysis and rural straw brick residential design method are studied. The main work is as follows: (1) the vertical bearing capacity test of single-story rural straw brick house window wall is carried out, the masonry process of straw grass brick wall is introduced, and the stress characteristics, deformation characteristics, yield bearing capacity and failure form of straw window wall under vertical load are studied. The test results show that the straw brick wall meets the requirements of vertical bearing capacity of the wall between windows of rural straw brick single-story residence. (2) three kinds of straw grass brick wall specimen models are simulated and analyzed by using ANSYS13.0 finite element analysis software, which are steel wire mesh cement mortar plastering straw brick wall W / 1 model. Wood keel cement mortar plastering straw brick wall W / 2 model and cement mortar plastering straw grass brick wall W / 3 model. By comparing the load-displacement curve obtained by finite element analysis with the experimental results, the correctness of the simulation method is proved, and the influence of different structural measures on straw brick wall is obtained. (3) the structural types of rural energy-saving straw brick house are introduced. According to the environment and construction characteristics of straw brick house in rural areas, the corresponding design methods and corresponding structural measures for straw brick building are put forward.
【学位授予单位】：吉林建筑大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TU362;TU531.6
本文编号：2503379
[Abstract]:With the development of economy and the continuous improvement of people's awareness of ecological energy conservation and environmental protection, countries all over the world have begun to study the application of crop straw as a new material in ecological buildings. Straw building appeared early in rural housing in western developed countries. This kind of straw brick building is mainly composed of vertical load-bearing components of wood, and straw brick is used in enclosure structure. This structure has light weight, good seismic performance and thermal insulation performance. It is a traditional green and energy-saving building. In recent years, the construction of straw brick house has begun in some rural areas of northern China. Clay brick is still used as the bearing component of the house, and straw brick is only used as the filling material of the wall. The development and application of straw brick in architecture can solve the problem of shortage of resources and energy, and promote the harmonious and sustainable development of human society and ecological environment. In this paper, after referring to a large number of domestic and foreign literature, straw brick wall test, ANSYS finite element simulation analysis and rural straw brick residential design method are studied. The main work is as follows: (1) the vertical bearing capacity test of single-story rural straw brick house window wall is carried out, the masonry process of straw grass brick wall is introduced, and the stress characteristics, deformation characteristics, yield bearing capacity and failure form of straw window wall under vertical load are studied. The test results show that the straw brick wall meets the requirements of vertical bearing capacity of the wall between windows of rural straw brick single-story residence. (2) three kinds of straw grass brick wall specimen models are simulated and analyzed by using ANSYS13.0 finite element analysis software, which are steel wire mesh cement mortar plastering straw brick wall W / 1 model. Wood keel cement mortar plastering straw brick wall W / 2 model and cement mortar plastering straw grass brick wall W / 3 model. By comparing the load-displacement curve obtained by finite element analysis with the experimental results, the correctness of the simulation method is proved, and the influence of different structural measures on straw brick wall is obtained. (3) the structural types of rural energy-saving straw brick house are introduced. According to the environment and construction characteristics of straw brick house in rural areas, the corresponding design methods and corresponding structural measures for straw brick building are put forward.
【学位授予单位】：吉林建筑大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TU362;TU531.6
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