建筑结构

2015, v.45;No.408(12) 83-89

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矩形孔页岩烧结保温砌块砌体基本力学性能试验研究
Experimental study on basic mechanical properties of shale fired heat-insulation block masonry

白国良;秦朝刚;吴健;王辉;权宗刚;浮广明;
Bai Guoliang;Qin Chaogang;Wu Jian;Wang Hui;Quan Zonggang;Fu Guangming;School of Civil Engineering,Xi'an University of Architecture and Technology;Xinjiang Kaile New Materials Co.,Ltd.;Xi'an Wall Material Research and Design Institute;

摘要(Abstract):

通过对矩形孔页岩烧结保温砌块薄灰缝砌体轴心受压性能和沿通缝抗剪性能试验研究,分析了其破坏特征和受力机理。试验结果表明:高强度等级专用砂浆砌筑的矩形孔页岩烧结保温砌块砌体抗压试件破坏时裂缝主要出现在企口面且分布比较均匀,脆性特征明显;薄灰缝砌体受剪破坏形态主要为单剪破坏,在分析破坏面砂浆的分布形态后,提出了提高砌体抗剪强度的砌筑方式;研究了试件宽度对中型砌块抗压强度的影响;结合试验结果给出了适用性更好的矩形孔页岩烧结保温砌块砌体抗压、抗剪强度计算公式。
The failure characteristics and stress mechanism of shale fired heat-insulation block with rectangular opening masonry with thin motor joint were analyzed through the experimental study on axial compressive property and shear performance along horizontal bed joint tests. The results show that shale fired heat-insulation block masonry with rectangular opening built with high strength special mortar grade masonry has equally distributed cracks that are on the long edge in compressive experimental failure and its failure is obvious brittle failure. The main shear failure pattern of thin mortar joint masonry is mainly single shear failure. After the analyses of the motor distribution forms on failure surfaces,a new laying process that could enhance the shear strength of the masonry was proposed. The influence of the width of specimen on compressive strength of medium masonry was studied. Better applicability calculation formulas of compressive strength and shear strength of shale fired heat-insulation block masonry with rectangular opening were provided based on the results of the experiments.

关键词(KeyWords): 矩形孔页岩烧结保温砌块;抗压强度;抗剪强度;薄灰缝砌体;砌筑工艺
shale fired heat-insulation block with rectangular opening;compressive strength;shear strength;thin mortar joint masonry;laying process

Abstract:

Keywords:

基金项目(Foundation): 国家科技支撑计划项目(2011BAJ04B01-02)

作者(Author): 白国良;秦朝刚;吴健;王辉;权宗刚;浮广明;
Bai Guoliang;Qin Chaogang;Wu Jian;Wang Hui;Quan Zonggang;Fu Guangming;School of Civil Engineering,Xi'an University of Architecture and Technology;Xinjiang Kaile New Materials Co.,Ltd.;Xi'an Wall Material Research and Design Institute;

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DOI: 10.19701/j.jzjg.2015.12.017

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