新型保温防火节能墙板系统安全性能研究
发布时间：2019-05-06 19:05
【摘要】：随着中国城市化水平的快速发展,房屋建造规模的增大,建筑能耗将最终有可能超越工业、交通运输业等行业而位居首位,因此将建筑节能作为一项基本国策,大力贯彻势在必行。在这样的大环境下,纷纷涌现出大量的节能材料、节能保温墙板等产品,但伴随而来的技术安全问题也是层出不穷,如保温板的脱落现象、耐久性问题,开裂问题、施工质量问题等等,因此,本文根据委托方提供的一种新型复合外保温墙板,研究这种新类型产品所需解决的一系列安全问题,为实际工程应用提供依据。 本文第一部分研究了这种全封闭型防火保温装饰一体化板的安全性能,根据这种板的结构以及安装上墙后需承受的荷载状况,设计了板的相关试验,研究了保温装饰一体化板的平面外承载力强度、粘结强度、抗压强度、抗折强度、螺栓挂点剪切强度、螺栓挂点抗拉强度、墙体局部受压强度、穿墙螺栓作用下的砌体抗拉强度、挂装系统强度,试验结果表明在满足基本加工工艺及施工要求的情况下,复合保温外挂板的安全性能基本能够得到保证。 第二部分采用大型有限元软件ANSYS进行墙体整体性能的分析,研究不同因素如边界条件、砌体强度、墙体高厚比、拉结筋间距等因素对填充墙平面外承载力、应力应变分布、位移、裂缝形态的影响,分析结果表明:填充墙与四周边界采取良好紧密的连接方式更有助于墙体平面外受力,同时砌体强度的提高、高厚比的减小、拉结筋间距的减小均能提高墙体平面外承载力,并且影响因素高厚比最为显著。 最后将有限元分析的结果与试验验结果进行对比,分析其相同点与不同点并针对两者之间的差别分析其原因,并为实际工程应用及后续研究工作提出新的展望。
[Abstract]:With the rapid development of China's urbanization level and the increase of the scale of housing construction, building energy consumption will eventually surpass industry, transportation and other industries in the first place. Therefore, building energy efficiency is regarded as a basic national policy. It is imperative to vigorously implement it. In such a large environment, a large number of energy-saving materials, energy-saving insulation wall panels and other products have emerged in succession, but accompanying technical safety problems are also endless, such as the phenomenon of thermal insulation board shedding, durability problems, cracking problems, Construction quality problems and so on. Therefore, according to a new type of composite external insulation wall board provided by the client, a series of safety problems needed to be solved for this new type of product are studied in this paper, so as to provide a basis for practical engineering application. In the first part of this paper, the safety performance of this fully enclosed type of fire protection and insulation decoration integrated board is studied. According to the structure of the board and the load condition after it is installed on the wall, the related tests of the board are designed. The out-of-plane bearing strength, bond strength, compressive strength, flexural strength, shear strength of bolt hanging point, tensile strength of bolt hanging point and local compressive strength of wall were studied. The tensile strength of masonry and the strength of mounting system under the action of wall-piercing bolts. The test results show that the safety performance of composite thermal insulation outer hanging plate can be basically guaranteed under the condition of meeting the basic processing technology and construction requirements. In the second part, the large-scale finite element software ANSYS is used to analyze the overall performance of the wall. Different factors, such as boundary conditions, masonry strength, ratio of wall height to thickness, tensile bar spacing and so on, are used to study the out-of-plane bearing capacity and stress-strain distribution of the filled wall. The effect of displacement and crack shape on the wall is analyzed. The results show that it is more helpful to adopt a good and close connection mode between the filled wall and the surrounding boundary, while the strength of masonry is increased and the ratio of height to thickness is reduced. The out-of-plane bearing capacity of the wall can be increased with the decrease of tensile bar spacing, and the ratio of height to thickness is the most significant. Finally, the results of finite element analysis are compared with the experimental results, the similarities and differences between them are analyzed, and the reasons for the differences between the two are analyzed, and a new prospect for practical engineering application and follow-up research work is put forward.
【学位授予单位】：天津大学
【学位级别】：硕士
【学位授予年份】：2012
【分类号】：TU551;TU545
本文编号：2470415
[Abstract]:With the rapid development of China's urbanization level and the increase of the scale of housing construction, building energy consumption will eventually surpass industry, transportation and other industries in the first place. Therefore, building energy efficiency is regarded as a basic national policy. It is imperative to vigorously implement it. In such a large environment, a large number of energy-saving materials, energy-saving insulation wall panels and other products have emerged in succession, but accompanying technical safety problems are also endless, such as the phenomenon of thermal insulation board shedding, durability problems, cracking problems, Construction quality problems and so on. Therefore, according to a new type of composite external insulation wall board provided by the client, a series of safety problems needed to be solved for this new type of product are studied in this paper, so as to provide a basis for practical engineering application. In the first part of this paper, the safety performance of this fully enclosed type of fire protection and insulation decoration integrated board is studied. According to the structure of the board and the load condition after it is installed on the wall, the related tests of the board are designed. The out-of-plane bearing strength, bond strength, compressive strength, flexural strength, shear strength of bolt hanging point, tensile strength of bolt hanging point and local compressive strength of wall were studied. The tensile strength of masonry and the strength of mounting system under the action of wall-piercing bolts. The test results show that the safety performance of composite thermal insulation outer hanging plate can be basically guaranteed under the condition of meeting the basic processing technology and construction requirements. In the second part, the large-scale finite element software ANSYS is used to analyze the overall performance of the wall. Different factors, such as boundary conditions, masonry strength, ratio of wall height to thickness, tensile bar spacing and so on, are used to study the out-of-plane bearing capacity and stress-strain distribution of the filled wall. The effect of displacement and crack shape on the wall is analyzed. The results show that it is more helpful to adopt a good and close connection mode between the filled wall and the surrounding boundary, while the strength of masonry is increased and the ratio of height to thickness is reduced. The out-of-plane bearing capacity of the wall can be increased with the decrease of tensile bar spacing, and the ratio of height to thickness is the most significant. Finally, the results of finite element analysis are compared with the experimental results, the similarities and differences between them are analyzed, and the reasons for the differences between the two are analyzed, and a new prospect for practical engineering application and follow-up research work is put forward.
【学位授予单位】：天津大学
【学位级别】：硕士
【学位授予年份】：2012
【分类号】：TU551;TU545
【引证文献】
相关期刊论文 前1条
1 于敬海;赵珊珊;孙琼;;新型复合保温板的基本力学性能试验研究[J];建筑科学;2013年03期
，本文编号：2470415
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