榫卯型装配式砌块砌体的基本力学性能试验研究

发布时间：2018-10-19 19:22

【摘要】：榫卯型装配式砌块是一种可以代替黏土烧结砖的新型墙体材料,具有利废、高强、环保、节能等诸多优点,但尚未系统地研究其基本力学性能。为此进行了24个足尺比例的榫卯型装配式砌块砌体轴压试验、24个抗剪试验以及12个压-剪复合受力试验。通过试验数据,研究了该种新型墙体的基本力学性能。试验结果表明榫卯型装配式砌块砌体的榫卯构造增强了砌体的抗剪能力,与传统砌块砌体抗剪机理有所不同。在试验的基础上,参照混凝土小型砌块砌体强度计算公式修正了榫卯型装配式块砌体的抗压强度平均值计算公式、抗剪强度平均值的计算公式及压剪复合作用下榫卯型装配式砌块砌体的受剪承载力计算公式,为榫卯型装配式砌块砌体力学性能的进一步研究及砌体设计提供试验成果及理论依据。
[Abstract]:Mortise and mortise prefabricated block is a new wall material which can replace clay sintered brick. It has many advantages such as waste benefit, high strength, environmental protection, energy saving and so on, but its basic mechanical properties have not been studied systematically. For this purpose, 24 full-scale prefabricated masonry specimens were tested under axial compression, 24 shear tests and 12 compression-shear composite tests. Based on the experimental data, the basic mechanical properties of the new wall are studied. The test results show that the tenon and joint structure of mortise and mortise type assembled block masonry enhances the shear resistance of masonry, which is different from that of traditional block masonry. On the basis of test, the average calculation formula of compressive strength of mortise and mortise type assembled block masonry is modified by referring to the formula of strength calculation of small concrete block masonry. The calculation formula of average value of shear strength and the formula of shear bearing capacity of mortise and mortise type assembled block masonry under the action of compression and shear composite, It provides experimental results and theoretical basis for further study of mechanical properties and masonry design of mortise and mortise type assembled block masonry.
【作者单位】：北京交通大学土木建筑工程学院;
【基金】：中央高校基本科研业务费专项基金(2015JBM065) “十二五”国家科技支撑计划(SQ2015BA1202193)
【分类号】：TU522.3

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