高厚比对新型混凝土横孔空心砌块砌体受压性能影响试验研究

发布时间：2018-03-09 05:29

本文选题：横孔空心砌块　切入点：砌体结构　出处：《湖南大学》2015年硕士论文　论文类型：学位论文

【摘要】：墙体材料在建筑行业中有着非常广泛的运用,然而传统的墙体材料在生产及使用过程中有着耗费耕地多、耗能大、污染环境、自重大、保温性不好等诸多缺点,随着社会的发展,人们对性能更优异、生产更环保节能的墙体材料的需求日益增长,新型混凝土横孔空心砌块正是顺应国家政策和社会需求而诞生的一种新型墙体材料,此种砌块较好地克服了传统砌块的诸多缺点,具有节能、节地、抗裂、防渗、轻质、隔热、环保、施工周期短等多种优点,得到了行业和社会的认可。课题组已经对该砌块砌体各项性能做了试验研究。本文在课题组已有的研究成果上,研究了高厚比对新型混凝土横孔空心砌块砌体受压性能的影响,具体研究工作内容如下:(1)对每种砌块、根据每种砌块制作的砌体标准抗压试件,和后期试件砌筑用砂浆进行抗压试验。(2)对三个同厚度,不同高厚比的砌体试件进行了轴压静载试验,研究了试件的高厚比对砌体裂缝开展、破坏征兆、破坏形式、开裂荷载、极限荷载、竖向变形、平面外位移、及稳定性的影响。(3)对三个同高厚比,不同厚度的砌体试件进行了轴压静载试验,研究了试件的厚度对砌体的裂缝开展、破坏征兆、破坏形式、开裂荷载、极限荷载、竖向变形、平面外位移、及稳定性的影响。(4)按照砌体规范计算各个试件的极限承载力,并与试验值比较,分析砌体规范公式对此种砌体的适用性。(5)提出了对课题组后续研究工作的建议,并结合试件的制作过程中出现的的问题提出砌体施工建议。
[Abstract]:Wall materials are widely used in the construction industry. However, the traditional wall materials have many disadvantages in the process of production and use, such as consuming more cultivated land, consuming more energy, polluting the environment, being self-important and not good at keeping temperature. With the development of society, people have more excellent performance, and the demand for producing more environmental protection and energy saving wall materials is increasing. The new type of concrete hollow block with horizontal hole is just a new type of wall material born to conform to the national policy and social demand. This kind of block has overcome many disadvantages of traditional block, and has many advantages, such as saving energy, saving land, resisting crack, preventing seepage, light weight, heat insulation, environmental protection, short construction period, etc. It has been recognized by the industry and the society. The research group has made an experimental study on the properties of the block masonry. In this paper, the influence of the ratio of height to thickness on the compressive performance of the new type concrete hollow block masonry with horizontal hole is studied on the basis of the existing research results of the research group. The specific research contents are as follows: (1) for each type of block, the masonry standard compression test pieces made according to each kind of block, and the mortar used for later masonry, are tested on the same thickness as three kinds of masonry mortar. The axial compression static load test of masonry specimens with different ratio of height to thickness was carried out. The ratio of height to thickness of the specimens was studied. The cracking signs, failure forms, cracking load, ultimate load, vertical deformation, out-of-plane displacement of the specimens were studied. And the influence of stability. (3) three masonry specimens with the same height and thickness ratio and different thickness are tested under static axial loading, and the crack development, failure symptom, failure form, cracking load, ultimate load, vertical deformation of masonry are studied by the thickness of the specimen. The influence of out-of-plane displacement and stability. (4) the ultimate bearing capacity of each specimen is calculated according to the masonry code, and the applicability of the formula of masonry code to this kind of masonry is analyzed by comparing with the test value. Some suggestions for masonry construction are put forward according to the problems in the process of making the specimens.
【学位授予单位】：湖南大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TU522.3

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