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首页> 外文期刊>Bulletin of earthquake engineering >Diagonal compression tests on masonry walls strengthened with a GFRP mesh reinforced mortar coating
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Diagonal compression tests on masonry walls strengthened with a GFRP mesh reinforced mortar coating

机译：GFRP网格增强砂浆涂料加固的砌体墙的对角线压缩测试

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The paper presents the results of a broad experimental investigation conducted through diagonal compression tests on masonry specimens strengthened with a mortar coating applied on both surfaces of the wall and reinforced with a glass fiber reinforced polymer (GFRP) mesh. Four types of masonry, three different types of masonry mortar and five diverse GFRP meshes for the reinforcement were considered. In particular, solid brick masonry 250 and 380 mm thick, two-leaf brick masonry with rubble conglomerate in fill and rubble stone masonry were tested. The diagonal compression tests, performed on 60 square masonry specimens with loading-unloading cycles up to the collapse, evidenced a good effectiveness of the strengthening technique in terms of both resistance and ductility. Results also showed the resistance increment in reinforced samples is generally greater for weaker masonry types and, referring to a single masonry type, for specimens built with a weaker mortar. Furthermore, the different GFRP meshes influenced very little the resistance of specimens, but higher reinforcement contents induced a lower decrease of the diagonal load after the cracking.
机译：本文介绍了对砌体标本进行的广泛实验研究的结果，对角砌体标本采用在墙体两面均涂有砂浆涂层并用玻璃纤维增​​强聚合物（GFRP）网加固的砖石标本进行。考虑了四种类型的砌体，三种不同类型的砌体砂浆和五个用于加固的不同GFRP网格。特别是，对250毫米和380毫米厚的实心砖石砌块，填充有碎石集料的两叶砖砌块和碎石砌块进行了测试。对60平方砌体标本进行了对角压缩试验，并进行了连续的荷载-卸载循环直至坍塌，这证明了加固技术在抗力和延展性方面的良好效果。结果还显示，对于较弱的砖石类型，加筋样品的阻力增量通常较大;对于单一砖石类型，对于使用较弱的砂浆建造的试样，其电阻增量通常更大。此外，不同的GFRP网格对试样的抵抗力影响很小，但是较高的钢筋含量导致开裂后对角线荷载的降低较小。

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