节能填充墙在框架结构中的应用研究

发布时间：2018-02-28 21:24

本文关键词： 框架结构节能填充墙保温隔热　出处：《西安科技大学》2015年硕士论文　论文类型：学位论文

【摘要】：框架结构建筑中的填充墙作为外围护结构的重要组成部分,其保温隔热性能的优劣会直接影响到建筑的总能耗。如何使墙体的节能构造更好地适应不同气候条件是本文研究的重点。由于自保温墙体在不同地区的节能适宜性研究目前还开展的较少。因此,针对自保温节能填充墙在不同气候区的应用研究有着重要的意义。本文首先阐述了我国的建筑气候区划和气候特点,以及不同地区的气候条件对建筑能耗的影响。其次,从人体热平衡角度出发,分析了热平衡因子对人体热舒适性造成的影响,以及室内外环境因素对室内热环境形成的作用。通过对比三种不同构造形式的外墙保温系统,指出自保温墙体所拥有的突出优势。归纳了不同气候区的外墙应达到的节能设计要求。并依据各气候区的外墙传热系数限值,计算出不同节能墙体材料所需的最小厚度,还结合所选材料的规格尺寸,提出了不同的自保温节能填充墙构造方案,并验算其热惰性指标。确定了满足节能设计要求的填充墙构造措施。为了进一步验证其节能效果,本文利用清华大学开发的De ST能耗分析软件,重点研究对比分析了在选用不同自保温节能墙体构造时建筑的自然室温、全年采暖与制冷负荷以及传热系数、热惰性指标等参数变化对建筑负荷的影响及节能效果。结果表明:在严寒和寒冷地区,采用蒸压加气混凝土砌块与保温材料复合而成的不同厚度的自保温砌块,对于框架结构填充墙既可以满足相应的节能标准,建筑全年热负荷也会随着保温层厚度的加大而逐渐减少。而在夏热冬冷和夏热冬暖地区,可直接采用蒸压加气混凝土砌块、节能页岩空心砌块或者陶粒混凝土空心砌块,就能满足相应的节能要求,而建筑全年负荷的大小控制则需同时兼顾墙体的传热系数和热惰性指标的要求。研究得出:在夏热冬冷地区运用自保温墙体节能技术最为适宜,可供选择的保温材料种类较多。综上所述,节能的自保温填充墙是一种很好的节能围护结构,可以广泛应用在各类框架结构建筑中,它的研究必将为今后的节能建筑提供更加广阔的应用前景。
[Abstract]:The infilled wall in the frame structure is an important part of the outer enclosure. Its thermal insulation performance will directly affect the total energy consumption of the building. How to make the wall energy saving structure adapt to different climatic conditions better is the focus of this paper. Sex studies are still being carried out less. It is of great significance to study the application of self-heat preservation and energy saving infill wall in different climate regions. Firstly, this paper expounds the climate regionalization and climate characteristics of buildings in China, and the influence of climate conditions in different regions on building energy consumption. From the point of view of thermal balance of human body, this paper analyzes the influence of heat balance factor on thermal comfort of human body, and the effect of indoor and outdoor environmental factors on the formation of indoor thermal environment. This paper points out the outstanding advantages of the self-insulating wall, sums up the energy saving design requirements of the exterior wall in different climate regions, and calculates the minimum thickness of the different energy saving wall materials according to the limit value of the outer wall heat transfer coefficient in each climate area. In addition, according to the size of the selected material, different construction schemes of self-insulation and energy-saving infill wall are put forward, and its thermal inertia index is checked. The construction measures of filling wall that meet the requirements of energy-saving design are determined. In order to further verify its energy-saving effect, Based on the energy consumption analysis software de St developed by Tsinghua University, this paper focuses on the comparative analysis of the natural room temperature, annual heating and refrigeration load and heat transfer coefficient of buildings with different self-insulation and energy-saving wall structures. The influence of parameters such as thermal inert index on building load and its energy-saving effect. The results show that in cold and cold regions, autoclaved aerated concrete blocks with different thickness are used to form self-insulating masonry blocks with different thickness, which are composed of autoclaved aerated concrete blocks and thermal insulation materials. For the infilled wall of frame structure, the energy saving standard can be satisfied, and the annual heat load of the building will gradually decrease with the increase of the thickness of the insulation layer, while in the hot summer and cold summer and warm summer areas, the autoclaved aerated concrete block can be used directly. Energy saving shale hollow blocks or ceramsite concrete hollow blocks can meet the corresponding energy-saving requirements. The heat transfer coefficient and thermal inertia index of the wall should be taken into account in the control of the annual load of the building. It is concluded that the energy saving technology of the self-insulating wall is the most suitable in the hot summer and cold winter area. To sum up, the energy saving self-insulation infill wall is a kind of good energy saving envelope structure, and can be widely used in all kinds of frame structure buildings. Its research will provide a wider application prospect for energy-saving buildings in the future.
【学位授予单位】：西安科技大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TU398

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