页岩烧结保温砌块墙体抗震性能试验研究

发布时间：2019-03-11 16:32

【摘要】：随着我国建筑节能这一可持续发展战略的实施，大力发展新型建筑节能保温墙材已成为一项紧迫的任务。页岩烧结保温砌块作为一种新型节能保温墙材具有节土利废、保护环境、保温性好、砌筑方便等优点，具有广阔应用前景。但国内尚未对页岩烧结保温砌块墙材进行相关的抗震性能试验研究，相应的设计规程更是一片空白，使得该产品推广和应用受到了一定的限制。因此，对页岩烧结保温砌块墙体抗震性能的研究具有重要意义。本文首先通过页岩烧结保温砌块的抗压试验、砌体的抗压试验及砌体的抗剪试验研究，掌握页岩烧结保温砌块砌体的基本力学性能，为页岩烧结保温砌块墙体的抗震性能试验研究提供一定的基础。本文重点研究了页岩烧结保温砌块墙体的抗震性能，通过5片墙体低周反复水平荷载试验，考虑不同高宽比、不同竖向压应力、有无窗洞的影响，研究了墙体的破坏过程和破坏形态及其各项抗震性能指标，包括抗剪承载力、滞回曲线、骨架曲线、延性、耗能性能、刚度退化等特性，并分析了影响页岩烧结保温砌块墙体抗剪承载力的一系列因素。试验结果表明带构造柱页岩烧结保温砌块墙体具有较好的抗震性能。试验还发现墙体的抗震抗剪承载力随着竖向压应力的增大而增大，随着高宽比的增大而减小。此外，对于开设窗洞的墙体，由于窗洞对墙体有严重的削弱作用，使得带洞口墙体的抗剪承载力降低较多。本文在页岩烧结保温砌块砌体的基本力学性能的基础上，根据5片页岩烧结保温砌块墙体的试验结果，结合砌体结构相关规范及前人相关墙体的研究成果，提出了页岩烧结保温砌块墙体抗震抗剪承载力的建议计算公式，，为编制页岩烧结保温砌块设计规程提供一定的依据。
[Abstract]:With the implementation of the sustainable development strategy of building energy-saving, it has become an urgent task to develop new building energy-saving and insulation wall materials. As a new type of energy-saving thermal insulation wall, shale sintered thermal insulation block has many advantages, such as saving soil and waste, protecting environment, good thermal insulation, convenient construction and so on, so it has a wide application prospect. However, there has not been any research on the seismic performance of shale sintered block wall materials in China, and the corresponding design regulations are blank, which limits the popularization and application of the product to a certain extent. Therefore, it is of great significance to study the seismic performance of shale sintered block walls. In this paper, the compression test of shale sintered thermal insulation block, the compression test of masonry and the shear test of masonry are studied to master the basic mechanical properties of shale sintered thermal insulation block masonry. It provides a certain foundation for the experimental study of seismic performance of shale sintered block walls. In this paper, the seismic behavior of shale sintered thermal insulation block wall is studied emphatically. Through the low cycle repeated horizontal load test of five walls, considering the influence of different ratio of height to width, different vertical compressive stress, window hole or not, the seismic behavior of shale sintered block wall is studied in this paper. The failure process and failure form of the wall and its seismic performance indexes are studied, including shear capacity, hysteretic curve, skeleton curve, ductility, energy dissipation performance, stiffness degradation, etc. A series of factors affecting the shear capacity of shale sintered block walls are analyzed. The test results show that the wall with structural shale sintering insulation block has better seismic performance. It is also found that the seismic shear capacity of the wall increases with the increase of the vertical compressive stress and decreases with the increase of the ratio of height to width. In addition, the shear capacity of the wall with openings is greatly reduced due to the severe weakening effect of the window holes on the walls with the opening of the windows. In this paper, based on the basic mechanical properties of shale sintered thermal insulation block masonry, according to the test results of five shale sintered thermal insulation block walls, combined with the related standards of masonry structure and previous research results of related walls, The proposed formula for calculating the seismic shear capacity of shale sintered thermal insulation block wall is put forward, which provides a certain basis for compiling the design regulation of shale sintered thermal insulation block.
【学位授予单位】：西安建筑科技大学
【学位级别】：硕士
【学位授予年份】：2013
【分类号】：TU352.11;TU364

【参考文献】