薄壁型钢—混凝土复合保温承重墙板的受力性能研究

发布时间：2018-11-13 20:36

【摘要】：世界上墙体建材的发展已经向轻质复合材料、合成材料的方向进军。在建筑结构和建筑功能材料上形成了一个比较完善的新型建材体系。我国现如今的建材能耗远高于其他国家,比如先前有部分内隔墙采用粘土烧结的砖墙,十分浪费资源,完全不符合国家倡导的绿色环保可持续发展的号召。本文对目前国内外建筑的节能材料和形式进行了概括分析,并在现有的钢框架—墙板复合体系的基础上,对一种薄壁型钢—混凝土复合保温承重墙板进行了研究。薄壁型钢—混凝土复合保温承重墙板,由薄壁型钢—混凝土作为主要承重骨架,该承重体系在薄壁型钢骨架外面浇筑混凝土,使钢框架与混凝土协同受力,共同承担竖向荷载,然后在承重骨架里面用保温砂浆作为填充材料,本墙板不仅节能环保,而且受力性能好。为了研究本墙板在竖向荷载下的力学性能,做了6块墙板,用以轴压和偏压试验。偏压试验主要分为偏心距20mm和偏心距40mm两种方案。每种试验需对2块墙板加载。研究在不同的荷载下,墙板的破坏现象、极限承载力和位移等力学性能。运用ABAQUS有限元软件对墙体模型进行模拟分析,分别模拟墙体在轴压和偏压状态下的破坏过程及极限承载力,并与试验结果对比,以验证有限元分析的可靠性。通过ABAQUS有限元软件来模拟足尺墙板在竖向荷载下的受力性能,针对影响墙板受力性能的主要参数,比如:高宽比、高厚比等,通过改变这些参数,设计不同的足尺墙体模型,来模拟真实墙板的竖向受力性能,最后通过荷载—位移曲线、应力—应变曲线等,对保温复合墙板的承载力进行研究。论文的研究成果对本复合保温承重墙板的设计与应用提供了重要的理论依据及实用价值。
[Abstract]:The development of wall building materials in the world has moved towards the direction of lightweight composite materials and synthetic materials. In the building structure and building function materials form a relatively perfect new building materials system. Nowadays, the energy consumption of building materials in our country is much higher than that in other countries. For example, some inner partition walls used clay sintered brick wall, which is a waste of resources, which is completely inconsistent with the call of green environmental protection and sustainable development advocated by our country. In this paper, the energy saving materials and forms of buildings at home and abroad are analyzed, and on the basis of the existing steel frame-wall panel composite system, a kind of thin-walled steel-concrete composite heat preservation bearing wall slab is studied. Thin-walled steel-concrete composite heat preservation and load-bearing wall slab is composed of thin-walled steel-concrete as the main load-bearing skeleton. The load-bearing system places concrete outside the thin-walled steel skeleton to make the steel frame and concrete work together to bear the vertical load. Then heat preservation mortar is used as filling material in the bearing skeleton. The wall board not only saves energy and environmental protection, but also has good mechanical performance. In order to study the mechanical properties of the wallboard under vertical load, six wallboards were made for axial compression and biasing tests. The bias test is mainly divided into two schemes: eccentric 20mm and eccentric 40mm. Each test requires loading of 2 walls. The failure phenomenon, ultimate bearing capacity and displacement of wall panels under different loads are studied. The failure process and ultimate bearing capacity of the wall under axial compression and eccentric compression were simulated by using ABAQUS finite element software, and the results were compared with the experimental results to verify the reliability of the finite element analysis. In this paper, the finite element software ABAQUS is used to simulate the mechanical behavior of full-scale wall panels under vertical load. According to the main parameters, such as aspect ratio, ratio of height to thickness and so on, different full-scale wall models are designed by changing these parameters. Finally, through load-displacement curve, stress-strain curve and so on, the bearing capacity of thermal insulation composite wallboard is studied. The research results of this paper provide important theoretical basis and practical value for the design and application of the composite insulation bearing wall.
【学位授予单位】：吉林大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TU398.9

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