Impact of Fiber Mortar Plaster Layer on Masonry Shearing Strength

liu xing dong; 李碧雄; 彭娟; mo si te

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Impact of Fiber Mortar Plaster Layer on Masonry Shearing Strength

更新时间：2023-11-14

- Impact of Fiber Mortar Plaster Layer on Masonry Shearing Strength
- Advanced Engineering Sciences Vol. 47, Issue Z2, Pages: 97-103(2015)
- 作者机构：
  
  1. 四川大学建筑与环境学院
  2. 四川大学电气信息学院
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published：2015，
  
  Published Online：26 November 2014，
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刘兴东,李碧雄,彭娟,莫思特.墙面纤维砂浆抹灰对砌体抗剪强度的影响[J].工程科学与技术,2015,47(Z2):97-103.

liu xing dong, 李碧雄, 彭娟, et al. Impact of Fiber Mortar Plaster Layer on Masonry Shearing Strength. [J]. Advanced Engineering Sciences 47(Z2):97-103(2015)
刘兴东,李碧雄,彭娟,莫思特.墙面纤维砂浆抹灰对砌体抗剪强度的影响[J].工程科学与技术,2015,47(Z2):97-103. DOI：

liu xing dong, 李碧雄, 彭娟, et al. Impact of Fiber Mortar Plaster Layer on Masonry Shearing Strength. [J]. Advanced Engineering Sciences 47(Z2):97-103(2015) DOI：

摘要

中文摘要: 基于空心砖填充墙震害现象，对比分析了有砂浆抹面与无砂浆抹面填充墙的震害特征。试验测试了三种不同纤维类型、不同掺量下砂浆的抗压强度，分析了纤维类型和掺量对砂浆抗压强度的影响。完成了10组共计30个无抹面、普通砂浆抹面和纤维砂浆抹面的砌体通缝抗剪强度试验，研究纤维种类和掺量不同时，砌体沿通缝截面受剪的抗剪强度和破坏机理，并与无抹面、普通砂浆抹面的情况进行对比。研究表明，有无砂浆抹面对砌体通缝抗剪强度有影响；掺入合适数量纤维的砂浆抹面能显著提高砌体通缝抗剪强度，纤维掺入量过低时，反而会降低抗剪强度；砂浆中纤维的掺入可有效延缓砌体表面裂缝的形成并改善剪切破坏的延性，另外，对实现砌体裂后不倒也具有积极作用。

Abstract

Abstract:Seismic performances of hollow brick infills with or without mortar plaster layer were investigated base on the field reconnaissance following 2008 Wenchuan Earthquake or the 2013 Lushan Earthquake。Decades of mortar specimens with different type of fiber or various percentage of fiber were designed and tested. The relationship among compressive strength of mortar

the type of fiber and the percentage of fiber was discussed. Joint shear testings to 30 different specimens were carried out

which include 3 specimens without mortar plaster layer

3 specimens with general mortar plaster layer and 24 specimens with different fiber mortar plaster layer

in order to reveal the joint shear properties and failure mechanism of masonry with or without mortar plaster layer. The concluding remarks include that the joint shear strength of masonry without plaster layer is quite different from that with plaster layer

the joint shear strength for masonry with fiber mortar layer significantly increases when the fiber content is suitable

the joint shear strength decrease if the fiber content in mortar layer get less

fiber mortar layer effectively delay the formation of the cracks on the masonry surface and improve the ductility of shear failure

and also fiber mortar layer is efficient to avoid sudden collapse following crack.

关键词

纤维砂浆抗剪强度砖砌体破坏机理通缝抗剪试验

Keywords

fiber mortarshear strengthbrickworkfailure mechanismjoint shear testing

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State Key Lab. of Coal Mine Disaster Dynamics and Control, Chongqing Univ.

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