Static and Cyclic Out-of-Plane Response of Masonry Walls Strengthened Using Textile-Mortar System
Static and Cyclic Out-of-Plane Response of Masonry Walls Strengthened Using Textile-Mortar System
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DOI：
10.1061/(asce)mt.1943-5533.0000128
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发表时间：
2010-11-01
影响因子：
3.2
通讯作者：
Tomas San-Jose, J.
中科院分区：
文献类型：
--
作者：
Harajli, M.;ElKhatib, H.;Tomas San-Jose, J.
本文介绍的工作是一个综合研究项目的一部分，该项目旨在开发和测试一个加固历史建筑的系统。该系统由纺织网布和砂浆组合而成。对具有代表性的墙体试件在静力和循环荷载作用下的平面外弯曲性能进行了试验。所调查的参数包括砖墙类型(混凝土砌块、砂岩和砖)、砂浆(天然石灰和水泥基)和纺织品(沥青涂层电子玻璃纤维、玄武岩或涂层玄武岩纤维)。用钢丝网加固的配套试件也进行了测试，以进行比较。所有纺织砂浆增强砌块(TRM)墙体试件都是由于块体相对于彼此的横向位移而导致纺织砂浆基质的横向剥离，以及纺织纤维的横向剪切-拉伸断裂。无论破坏模式如何，TRM试件在静载作用下的平面外荷载和位移能力显著增加，而在循环荷载下的刚度和强度退化较小，并具有相当大的位移能力。与TRM试件相比，钢丝网砂浆加固砌体试件的承载能力最高，但延性最差。
The work presented in this paper is a part of a comprehensive research project aimed at developing and testing a system for strengthening historical buildings. The system is composed of a combination of textile mesh and mortar. Representative wall specimens were tested for their out-of-plane flexural behavior under static and cyclic loadings. The parameters investigated include the types of masonry wall (concrete block, sandstone, and brick), mortar (natural lime and cement-based), and textile (bitumen coated E-glass, basalt, or coated basalt fibers). Companion specimens, strengthened using a steel wire mesh, were also tested for comparison. All textile-mortar reinforced masonry (TRM) wall specimens failed in a combination of transverse detachment of the textile-mortar matrix due to the transverse displacement of the blocks relative to each other, and combined transverse shear-tension fracturing of the textile fibers. Regardless of the mode of failure, the TRM specimens developed a substantial increase in their out-of-plane load and displacement capacities under static loading, and low stiffness and strength degradation, and considerable displacement capacities under cyclic loading. The wire mesh-mortar reinforced masonry specimens developed the highest load capacity but were the least ductile when compared to the TRM specimens.