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Cyclic behavior of autoclaved aerated concrete block infill walls strengthened by basalt and glass fiber composites
Engineering Structures ( IF 5.5 ) Pub Date : 2021-05-02 , DOI: 10.1016/j.engstruct.2021.112431
Mehmet Emin Arslan , Batuhan Aykanat , Serkan Subaşı , Muhammed Maraşlı

In this study, the effects of 10 mm bilaterally applied basalt and glass fiber reinforced (BRC and GRC) cementitious plasters with different fiber content (1.0%, 2.0% and 3.0%) on the behavior of the autoclaved aerated concrete (AAC) block infill walls were investigated. For this purpose, 8 infill walls with dimensions of 150 × 150 × 20 cm were produced to examine the behavior of the infill walls under reversed cyclic loading. The load carrying capacities, stiffness degradation and energy dissipation capacities of the infill walls placed in a steel frame with hinges on all four corners were determined by using hysteretic load–displacement curves to evaluate effects of fiber reinforced cementitious plaster. The test results show that BRC and GRC plaster applications considerably increase the load carrying and energy dissipation capacities of the infill walls. However, the experimental results illustrated that the usage of BRC plasters in strengthening of the AAC block infill walls needs more attention. Having similar results for different fiber ratios in the use of GRC reveals that it may be more rational to use 1.0% fiber content for the most economical solution for strengthening. Although the results obtained in this study are valid for infill walls, the experimental results show that GRC plasters can also be used in strengthening of masonry walls. It is recommended that this method can be used quickly and effectively in strengthening of masonry structures, which occupy an important place in the existing building stock.



中文翻译:

玄武岩和玻璃纤维复合材料增强的高压灭菌加气混凝土砌块填充墙的循环特性

在这项研究中,10毫米双边施用玄武岩和玻璃纤维增​​强(BRC和GRC)纤维含量不同(1.0%,2.0%和3.0%)的水泥胶布对蒸压加气混凝土(AAC)块填料的性能的影响墙壁进行了调查。为此目的,生产了8个尺寸为150×150×20 cm的填充墙,以检查填充墙在反向循环载荷下的性能。通过使用滞后载荷-位移曲线评估纤维增强水泥基灰泥的效果,确定了在四个角上均具有铰链的钢框架中填充墙的承载能力,刚度降低和能量耗散能力。测试结果表明,BRC和GRC灰泥应用显着提高了填充墙的承载能力和消能能力。然而,实验结果表明,在加强AAC砌块填充墙中使用BRC灰泥需要引起更多关注。对于使用GRC的不同纤维比率具有相似的结果表明,将1.0%的纤维含量用于最经济的强化解决方案可能更为合理。尽管在这项研究中获得的结果对于填充墙是有效的,但实验结果表明,GRC灰泥也可用于加固砌体墙。建议此方法可以快速有效地用于加固砌体结构,这些结构在现有建筑存量中占有重要地位。实验结果表明,在加强AAC砌块填充墙中使用BRC灰泥需要引起更多关注。对于使用GRC的不同纤维比率具有相似的结果表明,将1.0%的纤维含量用于最经济的强化解决方案可能更为合理。尽管在这项研究中获得的结果对于填充墙是有效的,但实验结果表明,GRC灰泥也可用于加固砌体墙。建议此方法可以快速有效地用于加固砌体结构,这些结构在现有建筑存量中占有重要地位。实验结果表明,在加强AAC砌块填充墙中使用BRC灰泥需要引起更多关注。对于使用GRC的不同纤维比率具有相似的结果表明,将1.0%的纤维含量用于最经济的强化解决方案可能更为合理。尽管在这项研究中获得的结果对于填充墙是有效的,但实验结果表明,GRC灰泥也可用于加固砌体墙。建议该方法可以快速有效地用于加固砌体结构,这些结构在现有建筑存量中占有重要地位。对于使用GRC的不同纤维比率具有相似的结果表明,将1.0%的纤维含量用于最经济的强化解决方案可能更为合理。尽管在这项研究中获得的结果对于填充墙是有效的,但实验结果表明,GRC灰泥也可用于加固砌体墙。建议此方法可以快速有效地用于加固砌体结构,这些结构在现有建筑存量中占有重要地位。对于使用GRC的不同纤维比率具有相似的结果表明,将1.0%的纤维含量用于最经济的强化解决方案可能更为合理。尽管在这项研究中获得的结果对于填充墙是有效的,但实验结果表明,GRC灰泥也可用于加固砌体墙。建议此方法可以快速有效地用于加固砌体结构,这些结构在现有建筑存量中占有重要地位。

更新日期:2021-05-03
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