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首页> 外文期刊>Bulletin of earthquake engineering >Strengthening of stone masonry walls with composite reinforced coatings
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Strengthening of stone masonry walls with composite reinforced coatings

机译：用复合增强涂料加固石砌墙

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摘要

The efficiency of strengthening traditionally built three-leaf stone masonry walls with different types of composite reinforced coating has been investigated. Glass fibre grid in single component fibre reinforced mortar and glass fibre fabric in epoxy resin matrix were used as coating materials. Four different coating types have been applied, with coating placed on one or both sides of the walls, anchored or not anchored to the masonry at the corners of the walls. Ten walls have been tested by subjecting them to cyclic shear loading at constant precompression, among them two walls in the original state as the control specimens. Four walls have been first tested up to the occurrence of the first significant damage, strengthened and then re-tested up to collapse, whereas four walls have been strengthened undamaged and tested up to collapse. All walls failed in shear. Significant increase in lateral resistance with regard to control walls was observed in all cases, up to 2.5-4.0-times the resistance of the control walls. The degree of improvement did not depend on the type of coating but on the technology of application. Although the coating increased the rigidity of the walls, displacement and energy dissipation capacities have been also improved.
机译：研究了用不同类型的复合增强涂料加固传统建筑的三叶砌石墙的效率。单组分纤维增强砂浆中的玻璃纤维网格和环氧树脂基体中的玻璃纤维织物用作涂料。已经应用了四种不同的涂料类型，涂料放置在墙壁的一侧或两侧，锚定或不锚固到墙壁角落处的砖石上。通过在恒定的预压缩下对其进行周期性剪切载荷测试了十个墙体，其中两个处于原始状态的墙体作为对照样品。首先对四堵墙进行了测试，直到首次出现重大破坏，然后对其进行了加固，然后再次进行测试以使其塌陷，而对四堵墙进行了未破坏的加固，并经过了测试以使其崩溃。所有的墙都没有剪切。在所有情况下，观察到的相对于控制壁的侧向阻力都显着增加，最高可达控制壁的2.5-4.0倍。改善的程度不取决于涂层的类型，而是取决于应用技术。尽管涂层增加了壁的刚性，但位移和能量耗散能力也得到了改善。

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