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The Use of Transverse Connectors as Reinforcement of Multi-leaf Walls

机译:横向连接器在多叶墙加固中的应用

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摘要

The need for new retrofitting techniques is the consequence of an increasing interest in the conservation of historic construction. The global behavior of a stone masonry structure is often governed by the level of connection between masonry wall leaves and the overall quality of the masonry material. This paper presents the results of an investigation carried out on site and in the laboratory on multi-leaf stone masonry panels strengthened using stainless steel rod inserted in a grouted fabric sleeve. The aim is to increase the collaboration between weakly connected masonry leaves. Pull-out tests were conducted on site on full-scale stone masonry wall panels, with the aim of studying the force required to pull out a connector under uniaxial tension. Several wall panels were assembled in the laboratory using solid calcareous stones and weak mortar and the effectiveness of the connectors was tested in shear and compression on both virgin and damaged panels. The experimental tests allowed the analysis of the behavior of the multi-leaf panels. Experimental results show that a substantial improvement of the wall panels’ mechanical behavior can be achieved by applying transverse connectors.
机译:对新的翻新技术的需求是对保护历史建筑越来越感兴趣的结果。石材砌体结构的整体行为通常取决于砌体墙板之间的连接程度和砌体材料的整体质量。本文介绍了在现场进行的调查结果,并在实验室中对通过在灌浆的织物套管中插入不锈钢棒加固的多叶石砌面板进行了研究。目的是增强弱连接的砖石叶之间的协作。拉力测试是在全尺寸石砌墙板上现场进行的,目的是研究在单轴拉力下拉出连接器所需的力。在实验室中,使用固态钙质石和弱灰泥组装了几块墙板,并在原始和损坏的板的剪切和压缩状态下测试了连接器的有效性。实验测试允许对多叶板的行为进行分析。实验结果表明,通过使用横向连接器,可以大大改善墙板的机械性能。

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